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chess-project/fixtures/tactics/discovered_check.json
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{
"description": "High-quality DISCOVERED_CHECK tactical puzzles from Lichess database",
"source": "https://database.lichess.org/",
"generatedAt": "auto-generated",
"cases": [
{
"id": "00Dke",
"initialFen": "5bk1/2Q2p1p/5qp1/p7/P1Bp4/1P5P/2r2PP1/3R2K1 w - - 6 28",
"sideToMove": "white",
"rating": 1197,
"bestMove": {
"san": "Bxf7+",
"uci": "c4f7"
},
"moves": [
{
"uci": "c4f7",
"san": "Bxf7+",
"player": true
},
{
"uci": "g8g7",
"san": "Kg7",
"player": false
},
{
"uci": "c7c2",
"san": "Qxc2",
"player": true
}
],
"resultingFen": "5b2/5Bkp/5qp1/p7/P2p4/1P5P/2Q2PP1/3R2K1 b - - 0 29",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 00Dke (Rating: 1197, Popularity: 100)",
"tags": [
"crushing",
"discoveredAttack",
"endgame",
"master",
"short"
]
},
{
"id": "00Uo9",
"initialFen": "4Q3/4qppk/2p2b1p/1p2pP2/2r1B3/5P1P/6P1/5R1K w - - 4 34",
"sideToMove": "white",
"rating": 1200,
"bestMove": {
"san": "Qxe7",
"uci": "e8e7"
},
"moves": [
{
"uci": "e8e7",
"san": "Qxe7",
"player": true
},
{
"uci": "f6e7",
"san": "Bxe7",
"player": false
},
{
"uci": "f5f6",
"san": "f6+",
"player": true
},
{
"uci": "c4e4",
"san": "Rxe4",
"player": false
},
{
"uci": "f6e7",
"san": "fxe7",
"player": true
}
],
"resultingFen": "8/4Pppk/2p4p/1p2p3/4r3/5P1P/6P1/5R1K b - - 0 36",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 00Uo9 (Rating: 1200, Popularity: 100)",
"tags": [
"advancedPawn",
"crushing",
"discoveredAttack",
"endgame",
"long"
]
},
{
"id": "00jCD",
"initialFen": "r4r1k/ppp1b1pp/3q1n2/6B1/8/1QN5/PPP2PPP/R4RK1 b - - 4 14",
"sideToMove": "black",
"rating": 1338,
"bestMove": {
"san": "Ng4",
"uci": "f6g4"
},
"moves": [
{
"uci": "f6g4",
"san": "Ng4",
"player": true
},
{
"uci": "g2g3",
"san": "g3",
"player": false
},
{
"uci": "e7g5",
"san": "Bxg5",
"player": true
}
],
"resultingFen": "r4r1k/ppp3pp/3q4/6b1/6n1/1QN3P1/PPP2P1P/R4RK1 w - - 0 16",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 00jCD (Rating: 1338, Popularity: 100)",
"tags": [
"advantage",
"discoveredAttack",
"middlegame",
"short"
]
},
{
"id": "00mvP",
"initialFen": "r1b2k1r/pppp2pp/5q2/4n3/2BQ4/8/PPP2PPP/RN2R1K1 b - - 0 13",
"sideToMove": "black",
"rating": 1104,
"bestMove": {
"san": "Nf3+",
"uci": "e5f3"
},
"moves": [
{
"uci": "e5f3",
"san": "Nf3+",
"player": true
},
{
"uci": "g2f3",
"san": "gxf3",
"player": false
},
{
"uci": "f6d4",
"san": "Qxd4",
"player": true
}
],
"resultingFen": "r1b2k1r/pppp2pp/8/8/2Bq4/5P2/PPP2P1P/RN2R1K1 w - - 0 15",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 00mvP (Rating: 1104, Popularity: 100)",
"tags": [
"advantage",
"discoveredAttack",
"middlegame",
"short"
]
},
{
"id": "00yIS",
"initialFen": "7k/p5p1/5q1p/8/P1b5/3rQ1RP/6BK/8 w - - 7 43",
"sideToMove": "white",
"rating": 1136,
"bestMove": {
"san": "Qe8+",
"uci": "e3e8"
},
"moves": [
{
"uci": "e3e8",
"san": "Qe8+",
"player": true
},
{
"uci": "c4g8",
"san": "Bg8",
"player": false
},
{
"uci": "g3d3",
"san": "Rxd3",
"player": true
}
],
"resultingFen": "4Q1bk/p5p1/5q1p/8/P7/3R3P/6BK/8 b - - 0 44",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 00yIS (Rating: 1136, Popularity: 100)",
"tags": [
"advantage",
"deflection",
"discoveredAttack",
"endgame",
"master",
"short"
]
},
{
"id": "01I9O",
"initialFen": "r5k1/1pp2r2/p3n2q/3pP2p/2P2R1P/8/PP1Q2P1/5RK1 w - - 1 23",
"sideToMove": "white",
"rating": 1406,
"bestMove": {
"san": "Rg4+",
"uci": "f4g4"
},
"moves": [
{
"uci": "f4g4",
"san": "Rg4+",
"player": true
},
{
"uci": "h5g4",
"san": "hxg4",
"player": false
},
{
"uci": "d2h6",
"san": "Qxh6",
"player": true
},
{
"uci": "f7f1",
"san": "Rxf1+",
"player": false
},
{
"uci": "g1f1",
"san": "Kxf1",
"player": true
}
],
"resultingFen": "r5k1/1pp5/p3n2Q/3pP3/2P3pP/8/PP4P1/5K2 b - - 0 25",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 01I9O (Rating: 1406, Popularity: 100)",
"tags": [
"crushing",
"discoveredAttack",
"long",
"middlegame"
]
},
{
"id": "01kSp",
"initialFen": "8/6k1/2bb2pp/4pP2/6P1/3BBPKP/8/8 b - - 0 38",
"sideToMove": "black",
"rating": 1050,
"bestMove": {
"san": "e4+",
"uci": "e5e4"
},
"moves": [
{
"uci": "e5e4",
"san": "e4+",
"player": true
},
{
"uci": "f3f4",
"san": "f4",
"player": false
},
{
"uci": "e4d3",
"san": "exd3",
"player": true
}
],
"resultingFen": "8/6k1/2bb2pp/5P2/5PP1/3pB1KP/8/8 w - - 0 40",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 01kSp (Rating: 1050, Popularity: 100)",
"tags": [
"bishopEndgame",
"crushing",
"discoveredAttack",
"endgame",
"short"
]
},
{
"id": "00R2A",
"initialFen": "2kr1b1R/p5p1/8/3P1p2/2P5/4B3/PP1K1P2/8 b - - 0 25",
"sideToMove": "black",
"rating": 838,
"bestMove": {
"san": "Bb4+",
"uci": "f8b4"
},
"moves": [
{
"uci": "f8b4",
"san": "Bb4+",
"player": true
},
{
"uci": "d2d3",
"san": "Kd3",
"player": false
},
{
"uci": "d8h8",
"san": "Rxh8",
"player": true
}
],
"resultingFen": "2k4r/p5p1/8/3P1p2/1bP5/3KB3/PP3P2/8 w - - 0 27",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 00R2A (Rating: 838, Popularity: 99)",
"tags": [
"crushing",
"discoveredAttack",
"endgame",
"short"
]
},
{
"id": "01efr",
"initialFen": "r2qk2r/1p3pp1/p1np4/3NpP2/4P1Qb/1P1B4/1PP3PK/R1B2R2 b kq - 0 21",
"sideToMove": "black",
"rating": 1521,
"bestMove": {
"san": "Bf2+",
"uci": "h4f2"
},
"moves": [
{
"uci": "h4f2",
"san": "Bf2+",
"player": true
},
{
"uci": "g4h3",
"san": "Qh3",
"player": false
},
{
"uci": "h8h3",
"san": "Rxh3+",
"player": true
},
{
"uci": "g2h3",
"san": "gxh3",
"player": false
},
{
"uci": "d8h4",
"san": "Qh4",
"player": true
},
{
"uci": "f1f2",
"san": "Rxf2",
"player": false
},
{
"uci": "h4f2",
"san": "Qxf2+",
"player": true
}
],
"resultingFen": "r3k3/1p3pp1/p1np4/3NpP2/4P3/1P1B3P/1PP2q1K/R1B5 w q - 0 25",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 01efr (Rating: 1521, Popularity: 99)",
"tags": [
"advantage",
"discoveredAttack",
"middlegame",
"veryLong"
]
},
{
"id": "0191t",
"initialFen": "6k1/1p3r2/p1p1p3/4Pqpp/3P4/1P2R1QP/P4PP1/6K1 b - - 1 33",
"sideToMove": "black",
"rating": 1750,
"bestMove": {
"san": "h4",
"uci": "h5h4"
},
"moves": [
{
"uci": "h5h4",
"san": "h4",
"player": true
},
{
"uci": "g3f3",
"san": "Qf3",
"player": false
},
{
"uci": "f5b1",
"san": "Qb1+",
"player": true
},
{
"uci": "g1h2",
"san": "Kh2",
"player": false
},
{
"uci": "f7f3",
"san": "Rxf3",
"player": true
}
],
"resultingFen": "6k1/1p6/p1p1p3/4P1p1/3P3p/1P2Rr1P/P4PPK/1q6 w - - 0 36",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 0191t (Rating: 1750, Popularity: 98)",
"tags": [
"crushing",
"discoveredAttack",
"endgame",
"long"
]
},
{
"id": "009zS",
"initialFen": "r3r1k1/1p3p1p/p1p3p1/8/6bP/Q3b1P1/PP2B3/R3K2R b KQ - 0 20",
"sideToMove": "black",
"rating": 1522,
"bestMove": {
"san": "Bxe2",
"uci": "g4e2"
},
"moves": [
{
"uci": "g4e2",
"san": "Bxe2",
"player": true
},
{
"uci": "e1e2",
"san": "Kxe2",
"player": false
},
{
"uci": "e3c5",
"san": "Bc5+",
"player": true
},
{
"uci": "e2f3",
"san": "Kf3",
"player": false
},
{
"uci": "c5a3",
"san": "Bxa3",
"player": true
}
],
"resultingFen": "r3r1k1/1p3p1p/p1p3p1/8/7P/b4KP1/PP6/R6R w - - 0 23",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 009zS (Rating: 1522, Popularity: 97)",
"tags": [
"advantage",
"discoveredAttack",
"exposedKing",
"long",
"middlegame"
]
},
{
"id": "00AdI",
"initialFen": "3r4/4kp1p/1PQ1p1p1/p3b3/1p2P2P/1P5K/6P1/8 b - - 2 36",
"sideToMove": "black",
"rating": 1340,
"bestMove": {
"san": "Rd3+",
"uci": "d8d3"
},
"moves": [
{
"uci": "d8d3",
"san": "Rd3+",
"player": true
},
{
"uci": "g2g3",
"san": "g3",
"player": false
},
{
"uci": "d3g3",
"san": "Rxg3+",
"player": true
},
{
"uci": "h3h2",
"san": "Kh2",
"player": false
},
{
"uci": "g3c3",
"san": "Rc3+",
"player": true
}
],
"resultingFen": "8/4kp1p/1PQ1p1p1/p3b3/1p2P2P/1Pr5/7K/8 w - - 2 39",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 00AdI (Rating: 1340, Popularity: 97)",
"tags": [
"crushing",
"discoveredAttack",
"endgame",
"long",
"master"
]
},
{
"id": "00IYg",
"initialFen": "r1b2r2/pp2n1p1/1qn1ppk1/3pP1N1/3P3P/P7/1P1Q1PP1/RN2K2R w KQ - 0 14",
"sideToMove": "white",
"rating": 1886,
"bestMove": {
"san": "h5+",
"uci": "h4h5"
},
"moves": [
{
"uci": "h4h5",
"san": "h5+",
"player": true
},
{
"uci": "g6h6",
"san": "Kh6",
"player": false
},
{
"uci": "g5e6",
"san": "Nxe6+",
"player": true
},
{
"uci": "h6h7",
"san": "Kh7",
"player": false
},
{
"uci": "e6f8",
"san": "Nxf8+",
"player": true
}
],
"resultingFen": "r1b2N2/pp2n1pk/1qn2p2/3pP2P/3P4/P7/1P1Q1PP1/RN2K2R b KQ - 0 16",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 00IYg (Rating: 1886, Popularity: 97)",
"tags": [
"advantage",
"discoveredAttack",
"long",
"middlegame"
]
},
{
"id": "013hi",
"initialFen": "2k5/1pp2B2/p1np4/4pR2/PP2P1q1/1NPP2P1/5bK1/8 w - - 0 31",
"sideToMove": "white",
"rating": 1265,
"bestMove": {
"san": "Be6+",
"uci": "f7e6"
},
"moves": [
{
"uci": "f7e6",
"san": "Be6+",
"player": true
},
{
"uci": "c8d8",
"san": "Kd8",
"player": false
},
{
"uci": "f5f8",
"san": "Rf8+",
"player": true
},
{
"uci": "d8e7",
"san": "Ke7",
"player": false
},
{
"uci": "e6g4",
"san": "Bxg4",
"player": true
}
],
"resultingFen": "5R2/1pp1k3/p1np4/4p3/PP2P1B1/1NPP2P1/5bK1/8 b - - 0 33",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 013hi (Rating: 1265, Popularity: 97)",
"tags": [
"crushing",
"discoveredAttack",
"endgame",
"fork",
"long"
]
},
{
"id": "017zX",
"initialFen": "6qk/1p4p1/B1n2rQp/3p4/8/2P2P2/P6P/6RK w - - 1 30",
"sideToMove": "white",
"rating": 1333,
"bestMove": {
"san": "Qxf6",
"uci": "g6f6"
},
"moves": [
{
"uci": "g6f6",
"san": "Qxf6",
"player": true
},
{
"uci": "g7f6",
"san": "gxf6",
"player": false
},
{
"uci": "g1g8",
"san": "Rxg8+",
"player": true
},
{
"uci": "h8g8",
"san": "Kxg8",
"player": false
},
{
"uci": "a6b7",
"san": "Bxb7",
"player": true
}
],
"resultingFen": "6k1/1B6/2n2p1p/3p4/8/2P2P2/P6P/7K b - - 0 32",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 017zX (Rating: 1333, Popularity: 97)",
"tags": [
"crushing",
"discoveredAttack",
"endgame",
"long",
"master"
]
},
{
"id": "01x76",
"initialFen": "5rk1/6pp/2pQ4/3pN3/5q2/2P2P1P/8/4R1K1 b - - 0 29",
"sideToMove": "black",
"rating": 1701,
"bestMove": {
"san": "Qg3+",
"uci": "f4g3"
},
"moves": [
{
"uci": "f4g3",
"san": "Qg3+",
"player": true
},
{
"uci": "g1f1",
"san": "Kf1",
"player": false
},
{
"uci": "f8f3",
"san": "Rxf3+",
"player": true
},
{
"uci": "e5f3",
"san": "Nxf3",
"player": false
},
{
"uci": "g3d6",
"san": "Qxd6",
"player": true
},
{
"uci": "e1e8",
"san": "Re8+",
"player": false
},
{
"uci": "g8f7",
"san": "Kf7",
"player": true
}
],
"resultingFen": "4R3/5kpp/2pq4/3p4/8/2P2N1P/8/5K2 w - - 2 33",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 01x76 (Rating: 1701, Popularity: 97)",
"tags": [
"advantage",
"discoveredAttack",
"endgame",
"exposedKing",
"fork",
"veryLong"
]
},
{
"id": "00GBX",
"initialFen": "r6k/pp2n1pp/2nN4/4p1r1/1PB5/2P4b/P3Nb1P/R2R3K w - - 0 23",
"sideToMove": "white",
"rating": 929,
"bestMove": {
"san": "Nf7+",
"uci": "d6f7"
},
"moves": [
{
"uci": "d6f7",
"san": "Nf7+",
"player": true
},
{
"uci": "h8g8",
"san": "Kg8",
"player": false
},
{
"uci": "f7g5",
"san": "Nxg5+",
"player": true
}
],
"resultingFen": "r5k1/pp2n1pp/2n5/4p1N1/1PB5/2P4b/P3Nb1P/R2R3K b - - 0 24",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 00GBX (Rating: 929, Popularity: 96)",
"tags": [
"advantage",
"discoveredAttack",
"fork",
"middlegame",
"short"
]
},
{
"id": "00Kia",
"initialFen": "5r1k/4n2p/1p4p1/pP5Q/P2pB2K/6P1/2P4P/4q3 w - - 0 38",
"sideToMove": "white",
"rating": 1704,
"bestMove": {
"san": "Qe5+",
"uci": "h5e5"
},
"moves": [
{
"uci": "h5e5",
"san": "Qe5+",
"player": true
},
{
"uci": "h8g8",
"san": "Kg8",
"player": false
},
{
"uci": "e4d5",
"san": "Bd5+",
"player": true
},
{
"uci": "e7d5",
"san": "Nxd5",
"player": false
},
{
"uci": "e5e1",
"san": "Qxe1",
"player": true
}
],
"resultingFen": "5rk1/7p/1p4p1/pP1n4/P2p3K/6P1/2P4P/4Q3 b - - 0 40",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 00Kia (Rating: 1704, Popularity: 96)",
"tags": [
"advantage",
"discoveredAttack",
"endgame",
"fork",
"long"
]
},
{
"id": "017Ut",
"initialFen": "3r3r/pp3pp1/5k2/2Qbq3/3N4/5PP1/PPP1N2p/R3R2K b - - 0 22",
"sideToMove": "black",
"rating": 981,
"bestMove": {
"san": "Bxf3+",
"uci": "d5f3"
},
"moves": [
{
"uci": "d5f3",
"san": "Bxf3+",
"player": true
},
{
"uci": "d4f3",
"san": "Nxf3",
"player": false
},
{
"uci": "e5c5",
"san": "Qxc5",
"player": true
}
],
"resultingFen": "3r3r/pp3pp1/5k2/2q5/8/5NP1/PPP1N2p/R3R2K w - - 0 24",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 017Ut (Rating: 981, Popularity: 96)",
"tags": [
"advantage",
"discoveredAttack",
"middlegame",
"short"
]
},
{
"id": "01Sr1",
"initialFen": "1r4k1/Q5pp/4p3/1BR2p2/3q4/B3nP1P/P5P1/6K1 b - - 1 35",
"sideToMove": "black",
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{
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{
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{
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{
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{
"id": "01mgz",
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{
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"expectedPattern": {
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},
"context": "Lichess puzzle 01mgz (Rating: 1301, Popularity: 96)",
"tags": [
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"kingsideAttack",
"master",
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{
"id": "01t6f",
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"sideToMove": "white",
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"bestMove": {
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{
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},
{
"uci": "e4h7",
"san": "Qxh7#",
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}
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"expectedPattern": {
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},
"context": "Lichess puzzle 01t6f (Rating: 1903, Popularity: 96)",
"tags": [
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"mate",
"mateIn2",
"middlegame",
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},
{
"id": "01tjv",
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{
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{
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{
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{
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},
"context": "Lichess puzzle 01tjv (Rating: 1522, Popularity: 96)",
"tags": [
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"intermezzo",
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},
{
"id": "006fF",
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"sideToMove": "white",
"rating": 1995,
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{
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},
{
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},
{
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"san": "Rxd8",
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},
{
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}
],
"resultingFen": "r1br4/ppk3p1/2nb2Qp/1B1p4/3p4/8/PPP2PPP/3RR1K1 b - - 0 20",
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},
"context": "Lichess puzzle 006fF (Rating: 1995, Popularity: 95)",
"tags": [
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"exposedKing",
"long",
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},
{
"id": "00vUf",
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},
{
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},
{
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},
{
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},
{
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"context": "Lichess puzzle 00vUf (Rating: 2046, Popularity: 95)",
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{
"id": "00xGN",
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{
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},
{
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}
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{
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},
{
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},
{
"uci": "c6e6",
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},
"context": "Lichess puzzle 01Ag5 (Rating: 1013, Popularity: 95)",
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{
"id": "01G4i",
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"sideToMove": "white",
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"bestMove": {
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{
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},
{
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}
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},
"context": "Lichess puzzle 01G4i (Rating: 1921, Popularity: 95)",
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{
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{
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},
{
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},
{
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},
{
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}
],
"resultingFen": "6k1/6pp/8/3b4/3P4/2r1P1BP/5P1K/8 w - - 0 37",
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{
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{
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{
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{
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{
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{
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{
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{
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],
"resultingFen": "B1b2rk1/5p1p/p3pqn1/1p6/8/1P5P/P1P1QP2/1K1R2R1 b - - 0 23",
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{
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{
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{
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"context": "Lichess puzzle 00lIV (Rating: 1627, Popularity: 94)",
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{
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{
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{
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},
{
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},
{
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{
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{
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{
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],
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{
"id": "01JzG",
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{
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{
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],
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},
{
"id": "01vlR",
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},
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{
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},
{
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],
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"context": "Lichess puzzle 01vlR (Rating: 927, Popularity: 94)",
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{
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{
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{
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{
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{
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],
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},
{
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{
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{
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],
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},
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{
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{
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{
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"san": "Rxd7",
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],
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},
"context": "Lichess puzzle 008Y3 (Rating: 1075, Popularity: 93)",
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"kingsideAttack",
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},
{
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},
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{
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{
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],
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"type": "DISCOVERED_CHECK"
},
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{
"id": "00XQ8",
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},
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{
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{
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},
{
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},
{
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}
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},
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"endgame",
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},
{
"id": "00rx9",
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"sideToMove": "white",
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},
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{
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},
{
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}
],
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},
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"tags": [
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"middlegame",
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{
"id": "00zdb",
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"sideToMove": "white",
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{
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{
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},
"context": "Lichess puzzle 00zdb (Rating: 1852, Popularity: 93)",
"tags": [
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"master",
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},
{
"id": "01B6x",
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"sideToMove": "black",
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"bestMove": {
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{
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},
{
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},
{
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},
{
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}
],
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"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 01B6x (Rating: 1229, Popularity: 93)",
"tags": [
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"endgame",
"long"
]
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{
"id": "01VZi",
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"sideToMove": "black",
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"bestMove": {
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},
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{
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},
{
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}
],
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"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 01VZi (Rating: 1251, Popularity: 93)",
"tags": [
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"endgame",
"short"
]
},
{
"id": "01VvX",
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"sideToMove": "white",
"rating": 1120,
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},
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{
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{
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},
{
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},
{
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"discoveredAttack",
"long",
"mate",
"mateIn3",
"middlegame"
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{
"id": "01bkF",
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"sideToMove": "black",
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{
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{
"uci": "c7g3",
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}
],
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"endgame",
"master",
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{
"id": "01dLk",
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"sideToMove": "white",
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{
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{
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{
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{
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{
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},
{
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}
],
"resultingFen": "4r1k1/pbp2p1p/1p3p2/8/3N4/6P1/PP3PBP/R5K1 b - - 0 17",
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"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 01dLk (Rating: 1484, Popularity: 93)",
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"kingsideAttack",
"middlegame",
"veryLong"
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{
"id": "01kUF",
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"sideToMove": "white",
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{
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{
"uci": "d7f7",
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],
"resultingFen": "1r4k1/R4R1p/2p1pBp1/p7/5b1P/8/P4PK1/2r5 b - - 0 35",
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"type": "DISCOVERED_CHECK"
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"context": "Lichess puzzle 01kUF (Rating: 1803, Popularity: 93)",
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"endgame",
"quietMove",
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},
{
"id": "01n09",
"initialFen": "r3k2r/pB2qppp/2pQ4/4n3/1B6/4P1Pb/PPP2P1P/R3K2R b KQkq - 0 15",
"sideToMove": "black",
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{
"uci": "e1e2",
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{
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{
"uci": "e2f3",
"san": "Kxf3",
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{
"uci": "c6c5",
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],
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"context": "Lichess puzzle 01n09 (Rating: 2044, Popularity: 93)",
"tags": [
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"long",
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{
"id": "021Au",
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"sideToMove": "white",
"rating": 1881,
"bestMove": {
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{
"uci": "h6g5",
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{
"uci": "g2c6",
"san": "Bxc6",
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],
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"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 021Au (Rating: 1881, Popularity: 93)",
"tags": [
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"discoveredAttack",
"master",
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{
"id": "003wQ",
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"sideToMove": "black",
"rating": 1887,
"bestMove": {
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"uci": "f6d6"
},
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{
"uci": "f4d6",
"san": "Bxd6",
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{
"uci": "f8f1",
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],
"resultingFen": "2r3k1/6pp/3B4/8/3N4/6P1/PP1K3P/5r2 w - - 0 26",
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"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 003wQ (Rating: 1887, Popularity: 92)",
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"middlegame",
"pin",
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{
"id": "00Y6y",
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"sideToMove": "black",
"rating": 1220,
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"uci": "d2f1"
},
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{
"uci": "h2g1",
"san": "Kg1",
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{
"uci": "f1g3",
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{
"uci": "g1f2",
"san": "Kf2",
"player": false
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{
"uci": "g3e2",
"san": "Nxe2",
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}
],
"resultingFen": "5k2/5pp1/8/1p2N3/1P6/7P/4nKP1/2r5 w - - 0 51",
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},
"context": "Lichess puzzle 00Y6y (Rating: 1220, Popularity: 92)",
"tags": [
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"endgame",
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{
"id": "011J1",
"initialFen": "4R3/5ppk/7p/2p2q2/1B6/3r2P1/5P1P/1Q4K1 b - - 0 35",
"sideToMove": "black",
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"bestMove": {
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"uci": "d3g3"
},
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"san": "Rxg3+",
"player": true
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{
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"san": "fxg3",
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{
"uci": "f5b1",
"san": "Qxb1+",
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}
],
"resultingFen": "4R3/5ppk/7p/2p5/1B6/6P1/7P/1q4K1 w - - 0 37",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 011J1 (Rating: 1246, Popularity: 92)",
"tags": [
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"endgame",
"short"
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{
"id": "01KFo",
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"sideToMove": "black",
"rating": 1267,
"bestMove": {
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"uci": "d6h2"
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"player": true
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{
"uci": "g1h1",
"san": "Kh1",
"player": false
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{
"uci": "f5g3",
"san": "Ng3+",
"player": true
},
{
"uci": "h1h2",
"san": "Kxh2",
"player": false
},
{
"uci": "g3e2",
"san": "Nxe2+",
"player": true
}
],
"resultingFen": "5rk1/ppq2ppp/4p3/3p2PP/3P4/2P1B3/PP2n1PK/R4R2 w - - 0 22",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
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"context": "Lichess puzzle 01KFo (Rating: 1267, Popularity: 92)",
"tags": [
"crushing",
"discoveredAttack",
"fork",
"long",
"middlegame"
]
},
{
"id": "01gkL",
"initialFen": "r1b2bkN/ppp3p1/3pPq1p/4n3/3Q4/8/PPP2PPP/RNB1K2R b KQ - 0 12",
"sideToMove": "black",
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"bestMove": {
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"uci": "e5f3"
},
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"san": "Nf3+",
"player": true
},
{
"uci": "g2f3",
"san": "gxf3",
"player": false
},
{
"uci": "f6d4",
"san": "Qxd4",
"player": true
}
],
"resultingFen": "r1b2bkN/ppp3p1/3pP2p/8/3q4/5P2/PPP2P1P/RNB1K2R w KQ - 0 14",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 01gkL (Rating: 1206, Popularity: 92)",
"tags": [
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"opening",
"short"
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},
{
"id": "01w6U",
"initialFen": "5rk1/1p5p/p2Ppq2/4n1p1/1P1QP1N1/P6P/5Pp1/3R2K1 b - - 1 33",
"sideToMove": "black",
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"uci": "e5f3"
},
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"san": "Nf3+",
"player": true
},
{
"uci": "g1g2",
"san": "Kxg2",
"player": false
},
{
"uci": "f6d4",
"san": "Qxd4",
"player": true
},
{
"uci": "d1d4",
"san": "Rxd4",
"player": false
},
{
"uci": "f3d4",
"san": "Nxd4",
"player": true
}
],
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"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 01w6U (Rating: 1744, Popularity: 92)",
"tags": [
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"endgame",
"fork",
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},
{
"id": "022Uz",
"initialFen": "8/p7/5kpp/b1R2p2/8/1B4P1/P2r1P1P/4K3 b - - 7 36",
"sideToMove": "black",
"rating": 1631,
"bestMove": {
"san": "Rd5+",
"uci": "d2d5"
},
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{
"uci": "d2d5",
"san": "Rd5+",
"player": true
},
{
"uci": "c5a5",
"san": "Rxa5",
"player": false
},
{
"uci": "d5a5",
"san": "Rxa5",
"player": true
}
],
"resultingFen": "8/p7/5kpp/r4p2/8/1B4P1/P4P1P/4K3 w - - 0 38",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 022Uz (Rating: 1631, Popularity: 92)",
"tags": [
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"endgame",
"short"
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{
"id": "001XA",
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"sideToMove": "white",
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"bestMove": {
"san": "Rxb7",
"uci": "b1b7"
},
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{
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"san": "Rxb7",
"player": true
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{
"uci": "c7b7",
"san": "Qxb7",
"player": false
},
{
"uci": "e4f6",
"san": "Nf6+",
"player": true
},
{
"uci": "e7f6",
"san": "Bxf6",
"player": false
},
{
"uci": "g2b7",
"san": "Bxb7",
"player": true
}
],
"resultingFen": "2r2rk1/pB3ppp/5b2/8/2p5/P1Bn2P1/2Q2P1P/5RK1 b - - 0 26",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 001XA (Rating: 1667, Popularity: 91)",
"tags": [
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"long",
"master",
"middlegame",
"sacrifice"
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},
{
"id": "00T4i",
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{
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{
"uci": "a7f7",
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}
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},
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{
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"sideToMove": "white",
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{
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{
"uci": "b6a7",
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{
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{
"uci": "a6c6",
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{
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{
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},
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{
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{
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{
"uci": "e1a1",
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"tags": [
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{
"id": "017c1",
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"sideToMove": "white",
"rating": 1042,
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"uci": "b2c3"
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{
"uci": "d4c3",
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{
"uci": "e2a2",
"san": "Rxa2",
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}
],
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"context": "Lichess puzzle 017c1 (Rating: 1042, Popularity: 91)",
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{
"id": "01dGR",
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"sideToMove": "white",
"rating": 1467,
"bestMove": {
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"uci": "g6f7"
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"san": "gxf7+",
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{
"uci": "e6f7",
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{
"uci": "f6h6",
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}
],
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"context": "Lichess puzzle 01dGR (Rating: 1467, Popularity: 91)",
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{
"id": "01tgp",
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"sideToMove": "white",
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"bestMove": {
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"uci": "f5h5"
},
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"player": true
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{
"uci": "g8g6",
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{
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},
{
"uci": "e7f6",
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{
"uci": "h5e2",
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}
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"context": "Lichess puzzle 01tgp (Rating: 2135, Popularity: 91)",
"tags": [
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{
"id": "021YZ",
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"sideToMove": "white",
"rating": 1167,
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{
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},
{
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}
],
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{
"id": "002KJ",
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"sideToMove": "white",
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"san": "Nxe5",
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{
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{
"uci": "e2g4",
"san": "Bxg4",
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}
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"context": "Lichess puzzle 002KJ (Rating: 1643, Popularity: 90)",
"tags": [
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"middlegame",
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{
"id": "019Oa",
"initialFen": "3q4/5kpQ/p1p5/1p1n4/2p3P1/P6P/1PPB4/1K6 b - - 0 33",
"sideToMove": "black",
"rating": 1582,
"bestMove": {
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"uci": "d5f6"
},
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"san": "Nf6",
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},
{
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"san": "Qf5",
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},
{
"uci": "d8d2",
"san": "Qxd2",
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}
],
"resultingFen": "8/5kp1/p1p2n2/1p3Q2/2p3P1/P6P/1PPq4/1K6 w - - 0 35",
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"tags": [
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"endgame",
"short"
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{
"id": "01iF8",
"initialFen": "5r1k/1p4pp/p5r1/3P4/3Bb2b/2Q5/PP4PP/4RB1K b - - 12 27",
"sideToMove": "black",
"rating": 2054,
"bestMove": {
"san": "Rxf1+",
"uci": "f8f1"
},
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"san": "Rxf1+",
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{
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{
"uci": "e4g2",
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{
"uci": "h1g1",
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},
{
"uci": "g2f3",
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}
],
"resultingFen": "7k/1p4pp/p5r1/3P4/3B3b/2Q2b2/PP5P/5RK1 w - - 2 30",
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"context": "Lichess puzzle 01iF8 (Rating: 2054, Popularity: 90)",
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{
"id": "003cs",
"initialFen": "2r1kbnr/pp4pp/4p3/3pq1N1/8/1P2B3/P3Q1PP/nN3RK1 w k - 0 17",
"sideToMove": "white",
"rating": 1986,
"bestMove": {
"san": "Rxf8+",
"uci": "f1f8"
},
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"san": "Rxf8+",
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{
"uci": "e8f8",
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},
{
"uci": "e3c5",
"san": "Bc5+",
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{
"uci": "c8c5",
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},
{
"uci": "e2e5",
"san": "Qxe5",
"player": true
},
{
"uci": "c5c1",
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},
{
"uci": "g1f2",
"san": "Kf2",
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],
"resultingFen": "5knr/pp4pp/4p3/3pQ1N1/8/1P6/P4KPP/nNr5 b - - 2 20",
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},
"context": "Lichess puzzle 003cs (Rating: 1986, Popularity: 89)",
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"exposedKing",
"middlegame",
"sacrifice",
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},
{
"id": "00UHZ",
"initialFen": "6k1/6p1/pp2np1p/8/2r1NR1P/6P1/1PP5/1K6 w - - 2 33",
"sideToMove": "white",
"rating": 1071,
"bestMove": {
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"uci": "e4f6"
},
"moves": [
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"player": true
},
{
"uci": "g7f6",
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"player": false
},
{
"uci": "f4c4",
"san": "Rxc4",
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],
"resultingFen": "6k1/8/pp2np1p/8/2R4P/6P1/1PP5/1K6 b - - 0 34",
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"context": "Lichess puzzle 00UHZ (Rating: 1071, Popularity: 89)",
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{
"id": "013v0",
"initialFen": "8/3N2pk/4Q1bp/1p1p4/3q2P1/7P/6K1/5R2 b - - 1 45",
"sideToMove": "black",
"rating": 2031,
"bestMove": {
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},
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"san": "Be4+",
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{
"uci": "f1f3",
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{
"uci": "d4d2",
"san": "Qd2+",
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{
"uci": "g2g3",
"san": "Kg3",
"player": false
},
{
"uci": "d2e1",
"san": "Qe1+",
"player": true
},
{
"uci": "g3f4",
"san": "Kf4",
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},
{
"uci": "g7g5",
"san": "g5+",
"player": true
},
{
"uci": "f4e5",
"san": "Ke5",
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},
{
"uci": "e4f3",
"san": "Bxf3+",
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}
],
"resultingFen": "8/3N3k/4Q2p/1p1pK1p1/6P1/5b1P/8/4q3 w - - 0 50",
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"context": "Lichess puzzle 013v0 (Rating: 2031, Popularity: 89)",
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"endgame",
"pin",
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},
{
"id": "01Ni2",
"initialFen": "2k2r2/1bNp4/pB1P4/8/P7/5n2/1P2KR1p/5R2 b - - 1 43",
"sideToMove": "black",
"rating": 1738,
"bestMove": {
"san": "Ng1+",
"uci": "f3g1"
},
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"san": "Ng1+",
"player": true
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{
"uci": "e2d2",
"san": "Kd2",
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{
"uci": "f8f2",
"san": "Rxf2+",
"player": true
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{
"uci": "b6f2",
"san": "Bxf2",
"player": false
},
{
"uci": "h2h1q",
"san": "h1=Q",
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}
],
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"context": "Lichess puzzle 01Ni2 (Rating: 1738, Popularity: 89)",
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"deflection",
"discoveredAttack",
"exposedKing",
"long",
"middlegame",
"promotion"
]
},
{
"id": "01vB3",
"initialFen": "r2q1rk1/1b3ppp/p2b4/1p1n4/2P1R3/1BP2N2/PP3PPP/R1BQ2K1 b - - 0 16",
"sideToMove": "black",
"rating": 1704,
"bestMove": {
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"uci": "d5c3"
},
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"san": "Nxc3",
"player": true
},
{
"uci": "b2c3",
"san": "bxc3",
"player": false
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{
"uci": "b7e4",
"san": "Bxe4",
"player": true
}
],
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},
"context": "Lichess puzzle 01vB3 (Rating: 1704, Popularity: 89)",
"tags": [
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"middlegame",
"short"
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},
{
"id": "01y4w",
"initialFen": "r1b2rk1/ppp2ppp/3p4/3q4/P7/3BP2P/1PPQ1PP1/1R2K2R w K - 2 15",
"sideToMove": "white",
"rating": 874,
"bestMove": {
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"uci": "d3h7"
},
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{
"uci": "d3h7",
"san": "Bxh7+",
"player": true
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{
"uci": "g8h7",
"san": "Kxh7",
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{
"uci": "d2d5",
"san": "Qxd5",
"player": true
}
],
"resultingFen": "r1b2r2/ppp2ppk/3p4/3Q4/P7/4P2P/1PP2PP1/1R2K2R b K - 0 16",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 01y4w (Rating: 874, Popularity: 88)",
"tags": [
"crushing",
"discoveredAttack",
"kingsideAttack",
"middlegame",
"short"
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{
"id": "009zR",
"initialFen": "3Q4/p1p2ppp/4k3/8/5P2/4P3/Prqn2PP/3R1RK1 b - - 0 22",
"sideToMove": "black",
"rating": 1620,
"bestMove": {
"san": "Nf3+",
"uci": "d2f3"
},
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{
"uci": "d2f3",
"san": "Nf3+",
"player": true
},
{
"uci": "g1h1",
"san": "Kh1",
"player": false
},
{
"uci": "c2g2",
"san": "Qxg2#",
"player": true
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],
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},
"context": "Lichess puzzle 009zR (Rating: 1620, Popularity: 87)",
"tags": [
"discoveredAttack",
"endgame",
"mate",
"mateIn2",
"short"
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},
{
"id": "00DEc",
"initialFen": "8/p5pk/1p3b1p/3r3P/6P1/3nBN2/P4PK1/3R4 b - - 4 30",
"sideToMove": "black",
"rating": 1091,
"bestMove": {
"san": "Nf4+",
"uci": "d3f4"
},
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{
"uci": "d3f4",
"san": "Nf4+",
"player": true
},
{
"uci": "e3f4",
"san": "Bxf4",
"player": false
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{
"uci": "d5d1",
"san": "Rxd1",
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],
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},
"context": "Lichess puzzle 00DEc (Rating: 1091, Popularity: 87)",
"tags": [
"crushing",
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"endgame",
"short"
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},
{
"id": "00nHy",
"initialFen": "r2q1rk1/p4pbp/1pp1p1p1/4n3/2PQN3/1P4P1/PB2PP1P/1R3RK1 b - - 0 16",
"sideToMove": "black",
"rating": 1250,
"bestMove": {
"san": "Nf3+",
"uci": "e5f3"
},
"moves": [
{
"uci": "e5f3",
"san": "Nf3+",
"player": true
},
{
"uci": "e2f3",
"san": "exf3",
"player": false
},
{
"uci": "g7d4",
"san": "Bxd4",
"player": true
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],
"resultingFen": "r2q1rk1/p4p1p/1pp1p1p1/8/2PbN3/1P3PP1/PB3P1P/1R3RK1 w - - 0 18",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 00nHy (Rating: 1250, Popularity: 87)",
"tags": [
"crushing",
"discoveredAttack",
"middlegame",
"short"
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},
{
"id": "01epa",
"initialFen": "r2qrk2/pb2b3/1p2Q1p1/6Bn/2Pp4/8/PP3PPP/3RR1K1 w - - 1 21",
"sideToMove": "white",
"rating": 2072,
"bestMove": {
"san": "Bh6+",
"uci": "g5h6"
},
"moves": [
{
"uci": "g5h6",
"san": "Bh6+",
"player": true
},
{
"uci": "h5g7",
"san": "Ng7",
"player": false
},
{
"uci": "e6g6",
"san": "Qxg6",
"player": true
},
{
"uci": "e7f6",
"san": "Bf6",
"player": false
},
{
"uci": "e1e8",
"san": "Rxe8+",
"player": true
},
{
"uci": "d8e8",
"san": "Qxe8",
"player": false
},
{
"uci": "g6f6",
"san": "Qxf6+",
"player": true
}
],
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{
"id": "00E29",
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{
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{
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{
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"sideToMove": "black",
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
"id": "01utE",
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{
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{
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{
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{
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{
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"context": "Lichess puzzle 01utE (Rating: 1403, Popularity: 85)",
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{
"id": "023LV",
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"sideToMove": "white",
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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},
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{
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{
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},
{
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"san": "Qxd6",
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},
"context": "Lichess puzzle 01PTR (Rating: 1256, Popularity: 79)",
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{
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"sideToMove": "black",
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},
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{
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"san": "Ke3",
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},
{
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"san": "Rxd4",
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],
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},
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{
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{
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},
{
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],
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"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 00wYl (Rating: 1158, Popularity: 68)",
"tags": [
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"middlegame",
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{
"id": "01q4A",
"initialFen": "r7/ppk5/2n3pp/2b1pN1q/3pP1n1/1P4NP/1P4P1/R1BQ1R1K b - - 1 22",
"sideToMove": "black",
"rating": 1791,
"bestMove": {
"san": "Nf2+",
"uci": "g4f2"
},
"moves": [
{
"uci": "g4f2",
"san": "Nf2+",
"player": true
},
{
"uci": "h1h2",
"san": "Kh2",
"player": false
},
{
"uci": "h5d1",
"san": "Qxd1",
"player": true
},
{
"uci": "f1d1",
"san": "Rxd1",
"player": false
},
{
"uci": "f2d1",
"san": "Nxd1",
"player": true
}
],
"resultingFen": "r7/ppk5/2n3pp/2b1pN2/3pP3/1P4NP/1P4PK/R1Bn4 w - - 0 25",
"expectedPattern": {
"type": "DISCOVERED_CHECK"
},
"context": "Lichess puzzle 01q4A (Rating: 1791, Popularity: 64)",
"tags": [
"advantage",
"discoveredAttack",
"long",
"master",
"middlegame"
]
}
]
}
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