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test_fens.json
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test_fens.json
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[
{
"description": "Prevent moves placing king under check by other king",
"fen": "4R3/1k6/P7/1K6/8/8/5q2/8 b - - 0 0",
"check": [
"SW"
],
"moves": [
[
"b7",
"a7"
],
[
"b7",
"c7"
]
],
"draw": false
},
{
"description": "Double check, L and S, Queen",
"fen": "2k5/8/PN6/8/8/1P2B1Q1/1P2P2R/2R1KBN1 b - - 0 0",
"check": [
"S",
"L"
],
"moves": [
[
"c8",
"d8"
]
],
"draw": false
},
{
"description": "Forced draw",
"fen": "2B1R3/2B3R1/8/P7/8/8/2K5/7k b - - 0 0",
"check": [],
"moves": [],
"draw": false
},
{
"description": "White in checkmate",
"fen": "4kbnr/pp2pppp/2P5/8/8/7b/5q2/2K1r3 w Q - 0 0",
"check": [
"E"
],
"moves": [],
"draw": false
},
{
"description": "White in check from W",
"fen": "4kbnr/ppP1pppp/4r3/8/8/7b/1q1K4/8 w Q - 0 0",
"check": [
"W"
],
"moves": [
[
"d2",
"d3"
],
[
"d2",
"d1"
]
],
"draw": false
},
{
"description": "Neither color in check",
"fen": "6k1/3p4/2P1P3/3P2K1/8/8/8/8 b - - 0 0",
"check": [],
"moves": [
[
"d7",
"c6"
],
[
"d7",
"d6"
],
[
"d7",
"e6"
],
[
"g8",
"f8"
],
[
"g8",
"g7"
],
[
"g8",
"h7"
],
[
"g8",
"h8"
]
],
"draw": false
},
{
"description": "Pinned black piece takes white piece",
"fen": "rnbqkbnr/ppppp2p/6p1/5P1Q/8/8/PPPP1PPP/RNB1KBNR b KQkq - 0 0",
"check": [],
"moves": [
[
"a7",
"a6"
],
[
"a7",
"a5"
],
[
"b7",
"b6"
],
[
"b7",
"b5"
],
[
"c7",
"c6"
],
[
"c7",
"c5"
],
[
"d7",
"d6"
],
[
"d7",
"d5"
],
[
"e7",
"e6"
],
[
"e7",
"e5"
],
[
"h7",
"h6"
],
[
"g6",
"h5"
],
[
"g6",
"h5"
],
[
"b8",
"a6"
],
[
"b8",
"c6"
],
[
"e8",
"f7"
],
[
"f8",
"g7"
],
[
"g8",
"f6"
],
[
"g8",
"h6"
],
[
"f8",
"h6"
]
],
"draw": false
},
{
"description": "White in check from NE",
"fen": "4kbnr/pp2pppp/2P1r3/8/8/7b/3q4/2K5 w Q - 0 0",
"check": [
"NE"
],
"moves": [
[
"c1",
"b1"
],
[
"c1",
"d2"
]
],
"draw": false
},
{
"description": "White in stalemate",
"fen": "rnb1kr2/pp4pp/8/3n4/2p5/6q1/8/7K w q - 0 0",
"check": [],
"moves": [],
"draw": false
},
{
"description": "Pinned queen movement",
"fen": "4k3/1R3q2/8/P6Q/8/B7/6PP/1N2KBNR b K - 0 0",
"check": [],
"moves": [
[
"f7",
"g6"
],
[
"f7",
"h5"
],
[
"e8",
"d8"
]
],
"draw": false
},
{
"description": "White in check from SE",
"fen": "4kbnr/pp2pppp/2P1r3/8/8/7b/2K5/3q4 w Q - 0 0",
"check": [
"SE"
],
"moves": [
[
"c2",
"b2"
],
[
"c2",
"c3"
],
[
"c2",
"d1"
]
],
"draw": false
},
{
"description": "White in check from S",
"fen": "4kbnr/pp2pppp/2P1r3/8/8/7b/2K5/2q5 w Q - 0 0",
"check": [
"S"
],
"moves": [
[
"c2",
"c1"
],
[
"c2",
"b3"
],
[
"c2",
"d3"
]
],
"draw": false
},
{
"description": "Test king having a move during a check",
"fen": "QQQQQQQQ/7r/2q3K1/8/8/8/8/7k w - - 0 0",
"check": [
"W"
],
"moves": [
[
"a8",
"c6"
],
[
"b8",
"d6"
],
[
"c8",
"c6"
],
[
"c8",
"e6"
],
[
"d8",
"d6"
],
[
"d8",
"f6"
],
[
"e8",
"c6"
],
[
"e8",
"e6"
],
[
"f8",
"d6"
],
[
"f8",
"f6"
],
[
"g8",
"e6"
],
[
"h8",
"f6"
],
[
"g6",
"h7"
],
[
"g6",
"g5"
],
[
"g6",
"f5"
]
],
"draw": false
},
{
"description": "Pawn can not deliver a pin",
"fen": "rnbqkbnr/1ppppppp/p7/7P/8/8/PPPPPPP1/RNBQKBNR b KQkq - 0 0",
"check": [],
"moves": [
[
"h7",
"h6"
],
[
"g7",
"g6"
],
[
"g7",
"g5"
],
[
"f7",
"f6"
],
[
"f7",
"f5"
],
[
"e7",
"e6"
],
[
"e7",
"e5"
],
[
"d7",
"d6"
],
[
"d7",
"d5"
],
[
"c7",
"c6"
],
[
"c7",
"c5"
],
[
"b7",
"b6"
],
[
"b7",
"b5"
],
[
"a6",
"a5"
],
[
"a8",
"a7"
],
[
"b8",
"c6"
],
[
"g8",
"h6"
],
[
"g8",
"f6"
]
],
"draw": false
},
{
"description": "Black has pinned piece but is not in check",
"fen": "2B5/2p5/1p3B1k/6N1/5Q2/8/PPP3PP/RN2K2R b Kk - 0 0",
"check": [],
"moves": [
[
"h6",
"h5"
],
[
"h6",
"g6"
],
[
"c7",
"c6"
],
[
"c7",
"c5"
],
[
"b6",
"b5"
]
],
"draw": false
},
{
"description": "Black in check East",
"fen": "5K1q/8/5k2/8/8/8/8/8 w - - 0 0",
"check": [
"E"
],
"moves": [],
"draw": false
},
{
"description": "White in check from SW",
"fen": "4kbnr/pp2pppp/2P1r3/8/8/7b/2K5/1q6 w Q - 0 0",
"check": [
"SW"
],
"moves": [
[
"c2",
"b1"
],
[
"c2",
"c3"
],
[
"c2",
"d2"
]
],
"draw": false
},
{
"description": "Various pieces can intercept",
"fen": "rnbqkbnr/ppp3pp/1P2pp2/3p4/Q1P5/B2P4/P3PPPP/RN2KBNR b KQkq - 0 0",
"check": [
"SW"
],
"moves": [
[
"b8",
"c6"
],
[
"b8",
"d7"
],
[
"c8",
"d7"
],
[
"e8",
"f7"
],
[
"d8",
"d7"
],
[
"c7",
"c6"
]
],
"draw": false
},
{
"description": "Pawn attack and initial one or two space move",
"fen": "2k5/8/8/7p/8/2p1b3/3P4/7K w - - 0 0",
"check": [],
"moves": [
[
"d2",
"e3"
],
[
"d2",
"d3"
],
[
"d2",
"c3"
],
[
"d2",
"d4"
],
[
"h1",
"g2"
],
[
"h1",
"h2"
]
],
"draw": false
},
{
"description": "white_in_check_NW",
"fen": "4kbnr/pp2pppp/2P1r3/8/8/7b/1q6/2K5 w Q - 0 0",
"check": [
"NW"
],
"moves": [
[
"c1",
"b2"
],
[
"c1",
"d1"
]
],
"draw": false
},
{
"description": "Pawn intercept from start square moving up 2.",
"fen": "2k5/8/5q2/8/8/4b3/2pP4/K7 w - - 0 0",
"check": [
"NE"
],
"moves": [
[
"d2",
"d4"
],
[
"a1",
"a2"
]
],
"draw": false
},
{
"description": "Move restricted by its own piece",
"fen": "r1bnkr2/1pppnp1p/1P2pNp1/p1P5/P2PP1q1/6b1/5PPP/R1BQKBNR b Kkq - 0 0",
"check": [
"L"
],
"moves": [],
"draw": false
},
{
"description": "Double check, L and SE, Queen",
"fen": "1k6/8/2N5/P7/5Q2/P1R5/1P2P3/R1B1KBN1 b k - 0 0",
"check": [
"SE",
"L"
],
"moves": [
[
"b8",
"c8"
],
[
"b8",
"a8"
],
[
"b8",
"b7"
]
],
"draw": false
},
{
"description": "White in check from N",
"fen": "4kbnr/pp2pppp/2r5/8/8/7b/5q2/2K5 w Q - 0 0",
"check": [
"N"
],
"moves": [
[
"c1",
"b1"
],
[
"c1",
"d1"
]
],
"draw": false
},
{
"description": "Black in checkmate",
"fen": "rnbqkbnr/ppppp1pp/8/5p1Q/4P3/8/PPPP1PPP/RNB1KBNR b KQkq - 0 0",
"check": [
"SE"
],
"moves": [
[
"g7",
"g6"
]
],
"draw": false
},
{
"description": "Full range of pawn attack",
"fen": "8/8/3k4/4p1p1/4pP1p/8/1p3q2/7K w - - 0 0",
"check": [],
"moves": [
[
"f4",
"g5"
],
[
"f4",
"f5"
],
[
"f4",
"e5"
]
],
"draw": false
},
{
"description": "White has pinned piece and in check NW",
"fen": "8/1k6/8/q7/8/8/8/r1B1K3 w - - 0 0",
"check": [
"NW"
],
"moves": [
[
"e1",
"d1"
],
[
"e1",
"f1"
],
[
"e1",
"e2"
],
[
"e1",
"f2"
]
],
"draw": false
},
{
"description": "Multiple queens pinned with restricted movement",
"fen": "4Q3/1R5q/3Q1qk1/2QN3q/5Q1R/7N/7P/5K2 b - - 0 0",
"check": [
"NW"
],
"moves": [
[
"h7",
"f7"
]
],
"draw": false
},
{
"description": "Black king must capture or move to escape check.",
"fen": "rn1q2nr/8/p1P5/5Rkp/P7/8/5P1P/4K2R b K - 0 0",
"check": [
"W"
],
"moves": [
[
"g5",
"f5"
],
[
"g5",
"g6"
],
[
"g5",
"h6"
],
[
"g5",
"g4"
],
[
"g5",
"h4"
]
],
"draw": false
},
{
"description": "Capture a piece to prevent a check",
"fen": "rnbqk1Rr/ppppbp1p/7Q/n7/5P2/2NBP3/PPPB2PP/5KNR b Qq - 0 0",
"check": [
"E"
],
"moves": [
[
"h8",
"g8"
],
[
"e7",
"f8"
]
],
"draw": false
},
{
"description": "Test multiple calls to is_check",
"fen": "QQQQQQQQ/8/8/5K2/8/4k3/8/8 b - - 0 0",
"check": [
"N"
],
"moves": [
[
"e3",
"f2"
]
],
"draw": false
},
{
"description": "Double check, L and SW, Rook",
"fen": "rnb3kr/ppp1N3/8/6p1/2Q5/8/PPP1P2P/R1B1KBNR b Kk - 0 0",
"check": [
"SW",
"L"
],
"moves": [
[
"g8",
"h7"
],
[
"g8",
"g7"
],
[
"g8",
"f8"
],
[
"g8",
"h7"
]
],
"draw": false
},
{
"description": "King can not deliver a pin",
"fen": "rnbqkbnr/ppp2ppp/8/3Pp3/3P4/8/PPP2PPP/RNBQKBNR b KQkq - 0 0",
"check": [],
"moves": [
[
"e5",
"d4"
],
[
"e5",
"e4"
],
[
"h7",
"h5"
],
[
"h7",
"h6"
],
[
"g7",
"g5"
],
[
"g7",
"g6"
],
[
"f7",
"f5"
],
[
"f7",
"f6"
],
[
"c7",
"c5"
],
[
"c7",
"c6"
],
[
"b7",
"b5"
],
[
"b7",
"b6"
],
[
"a7",
"a5"
],
[
"a7",
"a6"
],
[
"g8",
"e7"
],
[
"g8",
"f6"
],
[
"g8",
"h6"
],
[
"f8",
"a3"
],
[
"f8",
"b4"
],
[
"f8",
"c5"
],
[
"f8",
"d6"
],
[
"f8",
"e7"
],
[
"e8",
"d7"
],
[
"e8",
"e7"
],
[
"d8",
"d5"
],
[
"d8",
"d6"
],
[
"d8",
"d7"
],
[
"d8",
"h4"
],
[
"d8",
"g5"
],
[
"d8",
"f6"
],
[
"d8",
"e7"
],
[
"c8",
"h3"
],
[
"c8",
"g4"
],
[
"c8",
"f5"
],
[
"c8",
"e6"
],
[
"c8",
"d7"
],
[
"b8",
"a6"
],
[
"b8",
"c6"
],
[
"b8",
"d7"
]
],
"draw": false
},
{
"description": "Checkmate, enemy king can check a king",
"fen": "QQQQ1QQQ/7r/6K1/8/7k/8/8/8 b - - 0 0",
"check": [
"NW"
],
"moves": [],
"draw": false
},
{
"description": "En-passant Discovered Checkmate",
"fen": "5B2/8/8/4RPpk/4pK1N/6P1/4qP2/8 w - g6 0 0",
"check": [
"NE"
],
"moves": [
[
"f5",
"g6"
]
],
"draw": false
},
{
"description": "Take piece to intercept",
"fen": "rnb1kbnr/ppp2ppp/4P3/8/4q3/3P4/PPP2PPP/RNBQKBNR w KQkq - 0 0",
"check": [
"N"
],
"moves": [
[