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	tests.sh - chess-puzzles - chess puzzle book generator
	git clone git://git.codemadness.org/chess-puzzles
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	---
	tests.sh (28832B)
	---
	1 #!/bin/sh
	2
	3 statuscode=0
	4 failed=0
	5
	6 # testfen(name, expect, fen, moves)
	7 testfen() {
	8 name="$1"
	9 expect="$2"
	10 fen="$3"
	11 moves="$4"
	12
	13 # input FEN with no moves should match output FEN (except "start…
	14 output=$(./fen -o fen "$fen" "")
	15 if test "$fen" != "startpos" && test "$fen" != "$output"; then
	16 printf '[FEN] Fail: %s, input FEN does not match output …
	17 printf '\texpected: %s\n' "$fen" >&2
	18 printf '\tgot: %s\n' "$output" >&2
	19 statuscode=1
	20 failed=$((failed+1))
	21 fi
	22
	23 output=$(./fen -o fen "$fen" "$moves")
	24 if test "$output" = "$expect"; then
	25 printf '[FEN] OK: %s\n' "$name"
	26 else
	27 printf '[FEN] Fail: %s\n' "$name" >&2
	28 printf '\texpected: %s\n' "$expect" >&2
	29 printf '\tgot: %s\n' "$output" >&2
	30 printf '\tInput FEN, moves: "%s" "%s"\n' "$fen" "$moves"…
	31 statuscode=1
	32 failed=$((failed+1))
	33 fi
	34 }
	35
	36 # testpgn(name, expect, fen, moves)
	37 testpgn() {
	38 name="$1"
	39 expect="$2"
	40 fen="$3"
	41 moves="$4"
	42
	43 output=$(./fen -o pgn "$fen" "$moves")
	44 if test "$output" = "$expect"; then
	45 printf '[PGN] OK: %s\n' "$name"
	46 else
	47 printf '[PGN] Fail: %s\n' "$name" >&2
	48 printf '\texpected: %s\n' "$expect" >&2
	49 printf '\tgot: %s\n' "$output" >&2
	50 printf '\tInput FEN, moves: "%s" "%s"\n' "$fen" "$moves"…
	51 statuscode=1
	52 failed=$((failed+1))
	53 fi
	54 }
	55
	56 tests_fen() {
	57 testfen 'startpos'\
	58 'rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1' \
	59 "startpos"\
	60 ""
	61
	62 # white castles kingside
	63 testfen 'white castles kingside'\
	64 'rnbqkb1r/p4ppp/1pp1pn2/3p4/3P1B2/3BPN2/PPP2PPP/RN1Q1RK1 b kq - …
	65 'rnbqkb1r/p4ppp/1pp1pn2/3p4/3P1B2/3BPN2/PPP2PPP/RN1QK2R w KQkq -…
	66 'e1g1'
	67 testfen 'white castles kingside'\
	68 'r3k2r/p2bqpp1/nppbpn1p/3p4/3P1B2/2NBPN2/PPPQ1PPP/R4RK1 b kq - 9…
	69 'r3k2r/p2bqpp1/nppbpn1p/3p4/3P1B2/2NBPN2/PPPQ1PPP/R3K2R w KQkq -…
	70 'e1g1'
	71 testfen 'white castles queenside'\
	72 'r3k2r/p2bqpp1/nppbpn1p/3p4/3P1B2/2NBPN2/PPPQ1PPP/2KR3R b kq - 9…
	73 'r3k2r/p2bqpp1/nppbpn1p/3p4/3P1B2/2NBPN2/PPPQ1PPP/R3K2R w KQkq -…
	74 'e1c1'
	75
	76 # black castles kingside
	77 testfen 'black castles kingside'\
	78 'rnbq1rk1/p3bppp/1pp1pn2/3p4/3P1B2/3BPN2/PPPN1PPP/R2Q1RK1 w - - …
	79 'rnbqk2r/p3bppp/1pp1pn2/3p4/3P1B2/3BPN2/PPPN1PPP/R2Q1RK1 b kq - …
	80 'e8g8'
	81 testfen 'black castles kingside'\
	82 'r4rk1/p2bqpp1/nppbpn1p/3p4/3P1B2/2NBPN2/PPPQ1PPP/R4RK1 w - - 10…
	83 'r3k2r/p2bqpp1/nppbpn1p/3p4/3P1B2/2NBPN2/PPPQ1PPP/R4RK1 b kq - 9…
	84 'e8g8'
	85 testfen 'black castles queenside'\
	86 '2kr3r/p2bqpp1/nppbpn1p/3p4/3P1B2/2NBPN2/PPPQ1PPP/R4RK1 w - - 10…
	87 'r3k2r/p2bqpp1/nppbpn1p/3p4/3P1B2/2NBPN2/PPPQ1PPP/R4RK1 b kq - 9…
	88 'e8c8'
	89
	90 # check castling: the white queen is in check, but this doesn't change t…
	91 testfen 'white queen is in check, shouldnt change castling state'\
	92 'rnb1kb1r/pp2qppp/2p2n2/3p4/3P1B2/3B1N2/PPP2PPP/RN1QK2R w KQkq -…
	93 'rnb1kb1r/pp2qppp/2p1pn2/3P4/3P1B2/3B1N2/PPP2PPP/RN1QK2R b KQkq …
	94 'e6d5'
	95
	96 # check castling: black moves kingside rook: this removes castling on th…
	97 testfen 'black moves kingside rook: this removes castling on this side'\
	98 'rnb1kbr1/pp2qppp/2p2n2/3p4/3P1B2/3B1N2/PPP1QPPP/RN2K2R w KQq - …
	99 'rnb1kb1r/pp2qppp/2p2n2/3p4/3P1B2/3B1N2/PPP1QPPP/RN2K2R b KQkq -…
	100 'h8g8'
	101
	102 # check castling: white moves kingside rook: this removes castling on th…
	103 testfen 'white moves kingside rook: this removes castling on this side'\
	104 'rnb1kb2/pp2qppr/2p2n2/3p4/3P1B2/3B1N2/PPP1QPPP/RN2K1R1 b Qq - 3…
	105 'rnb1kb2/pp2qppr/2p2n2/3p4/3P1B2/3B1N2/PPP1QPPP/RN2K2R w KQq - 2…
	106 'h1g1'
	107 # check castling: white moves queenside rook: this removes castling on t…
	108 testfen 'white moves queenside rook: this removes castling on this side'\
	109 'rnb1kb2/1p2qpp1/p1p2n2/3p4/3P1B2/3B1N2/PPPNQPPr/1R2K1R1 b q - 1…
	110 'rnb1kb2/1p2qpp1/p1p2n2/3p4/3P1B2/3B1N2/PPPNQPPr/R3K1R1 w Qq - 0…
	111 'a1b1'
	112 # white king move, remove castling availability
	113 testfen 'white king move, remove castling availability'\
	114 'rnb1kb2/1p2qpp1/p1p2n2/3p4/3P1B2/3B1N2/PPPNQPPr/R2K2R1 b q - 1 …
	115 'rnb1kb2/1p2qpp1/p1p2n2/3p4/3P1B2/3B1N2/PPPNQPPr/R3K1R1 w Qq - 0…
	116 'e1d1'
	117 # white king move, remove castling availability
	118 testfen 'white king move, remove castling availability'\
	119 'r3k2r/pppppppp/8/8/8/8/PPPPPPPP/R2K3R b kq - 1 1'\
	120 'r3k2r/pppppppp/8/8/8/8/PPPPPPPP/R3K2R w KQkq - 0 1'\
	121 'e1d1'
	122 # black king move, remove castling availability
	123 testfen 'black king move, remove castling availability'\
	124 'r4k1r/pppppppp/8/8/8/8/PPPPPPPP/R2K3R w - - 2 2'\
	125 'r3k2r/pppppppp/8/8/8/8/PPPPPPPP/R2K3R b kq - 1 1'\
	126 'e8f8'
	127
	128 # black is laz0rbeamed by white bishop on the queenside on b8, but not o…
	129 # castling square it is allowed to castle.
	130 testfen 'black is laz0rbeamed by white bishop'\
	131 '2kr1br1/pp2qppp/n1p1bn2/3p4/3P1B2/3BQN2/PPP2PPP/RN2K2R w KQ - 8…
	132 'r3kbr1/pp2qppp/n1p1bn2/3p4/3P1B2/3BQN2/PPP2PPP/RN2K2R b KQq - 7…
	133 'e8c8'
	134 # white moves bishop and blocks castling for black, but this doesn't cha…
	135 # castle state itself.
	136 testfen 'white moves bishop and blocks castling for black, shouldnt chan…
	137 'r3kbr1/pp2qppp/n1p2n2/3p1B2/3P1B2/4QN1b/PPP2PPP/RN2K2R b KQq - …
	138 'r3kbr1/pp2qppp/n1p2n2/3p4/3P1B2/3BQN1b/PPP2PPP/RN2K2R w KQq - 8…
	139 'd3f5'
	140
	141 # test en passant: move white pawn g2 to g4, enpassant square becomes g3.
	142 testfen 'move white pawn g2 to g4, enpassant square becomes g3'\
	143 'r4k1r/ppppp1pp/8/8/5pP1/4P3/PPPP1P1P/R3K2R b - g3 0 4'\
	144 'r4k1r/ppppp1pp/8/8/5p2/4P3/PPPP1PPP/R3K2R w - - 0 4'\
	145 'g2g4'
	146
	147 # moving 2 squares near a pawn, but not en passant.
	148 testfen 'moving 2 squares near a pawn, but not en passant'\
	149 'r4k1r/ppppp1p1/8/5p2/6P1/4P2p/PPPP1P1P/R3K2R b - - 0 6'\
	150 'r4k1r/ppppp1p1/8/5p2/8/4P2p/PPPP1PPP/R3K2R w - - 0 6'\
	151 'g2g4'
	152 # test en passant for black.
	153 testfen 'en passant for black'\
	154 'r4k1r/ppp1p1p1/8/2Pp1p2/6P1/4P2p/PP1P1P1P/R3K2R w - d6 0 9'\
	155 'r4k1r/ppppp1p1/8/2P2p2/6P1/4P2p/PP1P1P1P/R3K2R b - - 0 8'\
	156 'd7d5'
	157 testfen 'en passant move for black'\
	158 'r4k1r/p1ppp1p1/8/1pP2p2/6P1/4P2p/PP1P1P1P/R3K2R w - b6 0 9'\
	159 'r4k1r/ppppp1p1/8/2P2p2/6P1/4P2p/PP1P1P1P/R3K2R b - - 0 8'\
	160 'b7b5'
	161 # white takes en passant
	162 testfen 'white takes en passant'\
	163 'rnbqkbnr/pppp1pp1/4P3/7p/8/8/PPP1PPPP/RNBQKBNR b KQkq - 0 3'\
	164 'rnbqkbnr/pppp1pp1/8/3Pp2p/8/8/PPP1PPPP/RNBQKBNR w KQkq e6 0 3'\
	165 'd5e6'
	166 # black takes en passant
	167 testfen 'black takes en passant'\
	168 'rnbqkbnr/ppppppp1/8/8/3P4/4P1p1/PPP2P1P/RNBQKBNR w KQkq - 0 4'\
	169 'rnbqkbnr/ppppppp1/8/8/3P2Pp/4P3/PPP2P1P/RNBQKBNR b KQkq g3 0 3'\
	170 'h4g3'
	171
	172 # white takes en passant: should reset halfmove counter
	173 testfen 'white takes en passant: should reset halfmove counter'\
	174 'rnbqkbnr/pppp1pp1/4P3/7p/8/8/PPP1PPPP/RNBQKBNR b KQkq - 0 3'\
	175 'rnbqkbnr/pppp1pp1/8/3Pp2p/8/8/PPP1PPPP/RNBQKBNR w KQkq e6 1 3'\
	176 'd5e6'
	177
	178 # check halfmove counter on check, white checks black: should increase h…
	179 testfen 'check halfmove counter on check, white checks black: should inc…
	180 'rnbqkbnr/ppp1pp1p/6p1/1B1p4/3P4/4P3/PPP2PPP/RNBQK1NR b KQkq - 2…
	181 'rnbqkbnr/ppp1pp1p/6p1/3p4/3P4/4P3/PPP2PPP/RNBQKBNR w KQkq - 20 …
	182 'f1b5'
	183
	184 # TODO: this is incorrect (illegal move), fix it?
	185 # 960 white queenside castle
	186 testfen '960 white queenside castle'\
	187 'qrn1bk1n/ppb1pprp/2p3p1/3p4/1B1P4/3NPB2/PPP2PPP/Q1KR2RN b q - 5…
	188 'qrn1bk1n/ppb1pprp/2p3p1/3p4/1B1P4/3NPB2/PPP2PPP/QR3KRN w KQq - …
	189 'f1c1'
	190 # 960, rook moved: remove ability for black to castle
	191 testfen '960, rook moved: remove ability for black to castle'\
	192 'q1r1bk1n/ppb1pprp/2pn2p1/3p4/1B1P4/3NPB2/PPP2PPP/Q1KRR2N w - - …
	193 'qr2bk1n/ppb1pprp/2pn2p1/3p4/1B1P4/3NPB2/PPP2PPP/Q1KRR2N b q - 7…
	194 'b8c8'
	195 # 960, rook moved
	196 testfen '960, rook moved, castling ability'\
	197 'bbnrkrnq/ppp1p1pp/8/3p1p2/3P1P2/3R4/PPP1P1PP/BBN1KRNQ b Kkq - 1…
	198 'bbnrkrnq/ppp1p1pp/8/3p1p2/3P1P2/8/PPP1P1PP/BBNRKRNQ w KQkq - 0 …
	199 'd1d3'
	200 # 960, rook moved
	201 testfen '960, rook moved, castling ability'\
	202 'bbnrkrnq/ppp1p1pp/8/3p1p2/3P1P2/5R2/PPP1P1PP/BBNRK1NQ b Qkq - 1…
	203 'bbnrkrnq/ppp1p1pp/8/3p1p2/3P1P2/8/PPP1P1PP/BBNRKRNQ w KQkq - 0 …
	204 'f1f3'
	205 # 960, rook moved
	206 testfen '960, rook moved, castling ability'\
	207 'bbn1krnq/ppp1p1pp/3r4/3p1p2/P2P1P2/8/1PP1P1PP/BBNRKRNQ w KQk - …
	208 'bbnrkrnq/ppp1p1pp/8/3p1p2/P2P1P2/8/1PP1P1PP/BBNRKRNQ b KQkq - 0…
	209 'd8d6'
	210 # 960, rook moved
	211 testfen '960, rook moved, castling ability'\
	212 'bbnrk1nq/ppp1p1pp/5r2/3p1p2/P2P1P2/8/1PP1P1PP/BBNRKRNQ w KQq - …
	213 'bbnrkrnq/ppp1p1pp/8/3p1p2/P2P1P2/8/1PP1P1PP/BBNRKRNQ b KQkq - 0…
	214 'f8f6'
	215 # 960, en passant move
	216 testfen '960, en passant move'\
	217 'bbnrk1nq/ppp1p2p/3r4/3p1ppP/P2P1P2/8/1PP1P1P1/BBNRKRNQ w KQq g6…
	218 'bbnrk1nq/ppp1p1pp/3r4/3p1p1P/P2P1P2/8/1PP1P1P1/BBNRKRNQ b KQq -…
	219 'g7g5'
	220 # 960, en passant take
	221 testfen '960, en passant take'\
	222 'bbnrk1nq/ppp1p2p/3r2P1/3p1p2/P2P1P2/8/1PP1P1P1/BBNRKRNQ b KQq -…
	223 'bbnrk1nq/ppp1p2p/3r4/3p1ppP/P2P1P2/8/1PP1P1P1/BBNRKRNQ w KQq g6…
	224 'h5g6'
	225
	226 # 960, white castle kingside with rook right next to the king, doesnt re…
	227 testfen '960, castle with rook right next to the king, doesnt reset half…
	228 'nnbrqkrb/ppp1pp1p/8/3p2p1/1Q1P4/8/PPP1PPPP/NNBR1RKB b kq - 1 3'\
	229 'nnbrqkrb/ppp1pp1p/8/3p2p1/1Q1P4/8/PPP1PPPP/NNBR1KRB w KQkq - 0 …
	230 'f1g1'
	231 testfen '960, black castle kingside with rook right next to the king, do…
	232 'nnbrqrkb/ppp1pp1p/8/3p2p1/3P4/2Q5/PPP1PPPP/NNBR1KRB w KQ - 2 4'\
	233 'nnbrqkrb/ppp1pp1p/8/3p2p1/3P4/2Q5/PPP1PPPP/NNBR1KRB b KQkq - 1 …
	234 'f8g8'
	235
	236 testfen '960, castle king on queenside with many empty squares between t…
	237 '1rb1krq1/pp2ppb1/3p2p1/1Np4p/2P1P3/1P2N3/P4PPP/2KR1RQB b kq - 1…
	238 '1rb1krq1/pp2ppb1/3p2p1/1Np4p/2P1P3/1P2N3/P4PPP/1R2KRQB w KQkq -…
	239 'e1c1'
	240
	241 testfen 'black moves pawn en passant into check (not mate, can take en p…
	242 'rnbqkbnr/p2ppppp/1p6/1PpPP3/2PKQ3/2PQQ3/P1PP1PPP/RNBQ1BNR w kq …
	243 'rnbqkbnr/p1pppppp/1p6/1P1PP3/2PKQ3/2PQQ3/P1PP1PPP/RNBQ1BNR b kq…
	244 'c7c5'
	245
	246 # NOTE: Lichess checks if en passant moves can actually be played, but t…
	247 # reference specifies this doesn't necesarily have to be the case.
	248 testfen 'black moves pawn en passant into checkmate (cant take en passan…
	249 'rnbqkbnr/p3pppp/1p6/2pPP3/2PKQ3/2PQQ3/P1PP1PPP/RNBQ1BNR w kq - …
	250 'rnbqkbnr/p1p1pppp/1p6/3PP3/2PKQ3/2PQQ3/P1PP1PPP/RNBQ1BNR b kq -…
	251 'c7c5'
	252
	253 testfen 'white is checkmated (en passant square is not set), do not remo…
	254 'rnbqkbnr/p2ppppp/1pP5/1Pp1P3/2PKQ3/2PQQ3/P1PP1PPP/RNBQ1BNR b kq…
	255 'rnbqkbnr/p2ppppp/1p6/1PpPP3/2PKQ3/2PQQ3/P1PP1PPP/RNBQ1BNR w kq …
	256 'd5c6'
	257
	258 testfen 'white is not checkmated (en passant square is set and can be pl…
	259 'rnbqkbnr/p2ppppp/1pP5/1P2P3/2PKQ3/2PQQ3/P1PP1PPP/RNBQ1BNR b kq …
	260 'rnbqkbnr/p2ppppp/1p6/1PpPP3/2PKQ3/2PQQ3/P1PP1PPP/RNBQ1BNR w kq …
	261 'd5c6'
	262
	263 testfen 'white promote to queen'\
	264 'rnbqkbQr/p1pppp1p/8/8/8/8/PpPPPP1P/R1BQKBNR b KQkq - 0 1'\
	265 'rnbqkb1r/p1ppppPp/8/8/8/8/PpPPPP1P/R1BQKBNR w KQkq - 0 1'\
	266 'g7g8Q'
	267
	268 testfen 'white promote to rook'\
	269 'rnbqkbRr/p1pppp1p/8/8/8/8/PpPPPP1P/R1BQKBNR b KQkq - 0 1'\
	270 'rnbqkb1r/p1ppppPp/8/8/8/8/PpPPPP1P/R1BQKBNR w KQkq - 0 1'\
	271 'g7g8R'
	272
	273 testfen 'white promote to bishop'\
	274 'rnbqkbBr/p1pppp1p/8/8/8/8/PpPPPP1P/R1BQKBNR b KQkq - 0 1'\
	275 'rnbqkb1r/p1ppppPp/8/8/8/8/PpPPPP1P/R1BQKBNR w KQkq - 0 1'\
	276 'g7g8B'
	277
	278 testfen 'white promote to knight'\
	279 'rnbqkbNr/p1pppp1p/8/8/8/8/PpPPPP1P/R1BQKBNR b KQkq - 0 1'\
	280 'rnbqkb1r/p1ppppPp/8/8/8/8/PpPPPP1P/R1BQKBNR w KQkq - 0 1'\
	281 'g7g8N'
	282
	283 testfen 'white promote to knight (fixup lowercase to uppercase)'\
	284 'rnbqkbNr/p1pppp1p/8/8/8/8/PpPPPP1P/R1BQKBNR b KQkq - 0 1'\
	285 'rnbqkb1r/p1ppppPp/8/8/8/8/PpPPPP1P/R1BQKBNR w KQkq - 0 1'\
	286 'g7g8n'
	287
	288 testfen 'black promote to queen'\
	289 'rnbqkb1r/p1ppppPp/8/8/8/8/P1PPPP1P/RqBQKBNR w KQkq - 0 2'\
	290 'rnbqkb1r/p1ppppPp/8/8/8/8/PpPPPP1P/R1BQKBNR b KQkq - 0 1'\
	291 'b2b1q'
	292
	293 testfen 'black promote to rook'\
	294 'rnbqkb1r/p1ppppPp/8/8/8/8/P1PPPP1P/RrBQKBNR w KQkq - 0 2'\
	295 'rnbqkb1r/p1ppppPp/8/8/8/8/PpPPPP1P/R1BQKBNR b KQkq - 0 1'\
	296 'b2b1r'
	297
	298 testfen 'black promote to bishop'\
	299 'rnbqkb1r/p1ppppPp/8/8/8/8/P1PPPP1P/RbBQKBNR w KQkq - 0 2'\
	300 'rnbqkb1r/p1ppppPp/8/8/8/8/PpPPPP1P/R1BQKBNR b KQkq - 0 1'\
	301 'b2b1b'
	302
	303 testfen 'black promote to knight'\
	304 'rnbqkb1r/p1ppppPp/8/8/8/8/P1PPPP1P/RnBQKBNR w KQkq - 0 2'\
	305 'rnbqkb1r/p1ppppPp/8/8/8/8/PpPPPP1P/R1BQKBNR b KQkq - 0 1'\
	306 'b2b1n'
	307
	308 testfen 'black promote to knight (fixup uppercase to lowercase)'\
	309 'rnbqkb1r/p1ppppPp/8/8/8/8/P1PPPP1P/RnBQKBNR w KQkq - 0 2'\
	310 'rnbqkb1r/p1ppppPp/8/8/8/8/PpPPPP1P/R1BQKBNR b KQkq - 0 1'\
	311 'b2b1N'
	312
	313 testfen 'castling chess960'\
	314 'qnkr1r2/p1p1p2p/4nppN/1p6/1P1p4/3P2P1/PQPNPP1P/2RK2Rb w KQ - 4 …
	315 'qnrkbnrb/pppppppp/8/8/8/8/PPPPPPPP/QNRKBNRB w KQkq - 0 1'\
	316 'd2d3 g7g6 e1c3 d7d5 c3h8 g8h8 b2b4 h8g8 g2g3 e8c6 f1e3 b7b5 a1e…
	317
	318 testfen 'castling chess960'\
	319 'r2k1r2/1pb3pp/2ppqp2/p2np3/P3N1P1/1N1P1P2/1PPBP1QP/R4RK1 b kq -…
	320 'r2k1r2/1pb3pp/2ppqp2/p2np3/P3N1P1/1N1P1P2/1PPBP1QP/R2K1R2 w KQk…
	321 'd1g1'
	322
	323 testfen 'test castles chess960'\
	324 'rk1r1n2/ppqp1bnp/2pbpp2/6p1/4P1P1/1PPN1P1P/P1QPBN1B/R4RK1 b kq …
	325 'rk1r1n2/ppqp1bnp/2pbpp2/6p1/4P1P1/1PPN1P1P/P1QPBN1B/RK1R4 w KQk…
	326 'b1g1'
	327
	328 testfen 'castles chess 960'\
	329 'r4rk1/ppqp1bnp/2pbppn1/6p1/4P1P1/1PPN1P1P/P1QPBN1B/RK1R4 w KQ -…
	330 'rk1r4/ppqp1bnp/2pbppn1/6p1/4P1P1/1PPN1P1P/P1QPBN1B/RK1R4 b KQkq…
	331 'b8g8'
	332 }
	333
	334 tests_pgn() {
	335 testpgn 'simple pawn move'\
	336 '2. ... e5'\
	337 'rnbqkbnr/ppp1pppp/8/3p4/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - 0 2'\
	338 'e7e5'
	339
	340 testpgn 'check: check with white pawn'\
	341 '4. gxf7+'\
	342 'rnbqkbnr/pppp1ppp/6P1/8/8/4p3/PPPPPP1P/RNBQKBNR w KQkq - 0 4'\
	343 'g6f7'
	344 testpgn 'check: check with black pawn'\
	345 '4. ... exf2+'\
	346 'rnbqkbnr/pppp1ppP/8/8/8/4p3/PPPPPP1P/RNBQKBNR b KQkq - 0 4'\
	347 'e3f2'
	348
	349 testpgn 'check: check with bishop'\
	350 '3. Bb5+'\
	351 'rnbqkbnr/ppp2ppp/8/3pp3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - 0 3'\
	352 'f1b5'
	353 testpgn 'check: check with white queen, open file'\
	354 '6. Qe4+'\
	355 'rnbqkbnr/1ppp1pp1/p5Pp/8/3Q4/4P3/PPP1PP1P/RNB1KBNR w KQkq - 0 6…
	356 'd4e4'
	357
	358 testpgn 'check: check and takes with white knight'\
	359 '8. Nxc7+'\
	360 'rnbqkbn1/pppp1ppr/6P1/3N4/7p/4PN2/PPP1PP1P/R1BQKB1R w KQq - 2 8…
	361 'd5c7'
	362
	363 testpgn 'black moves, but the move from white is unknown, use "..."'\
	364 '1. ... e5'\
	365 'rnbqkbnr/pppppppp/8/8/3P4/8/PPP1PPPP/RNBQKBNR b KQkq - 0 1'\
	366 'e7e5'
	367
	368 testpgn 'black moves with knight, ambigous move, needs file name'\
	369 '8. ... Nbd7'\
	370 'rn2kb1r/pp4pp/1qp1pn2/3p4/3P1B2/1P1BP3/P1P2P1P/RN1QK1NR b KQkq …
	371 'b8d7'
	372
	373 testpgn 'black moves with knight, non-ambigous move'\
	374 '8. ... Nd7'\
	375 'rn2kb1r/pp4pp/1qp1p3/3p4/3P1B2/1P1BP3/P1P2P1P/RN1QK1NR b KQkq -…
	376 'b8d7'
	377
	378 testpgn '2 queens, ambigous move, needs rank'\
	379 '8. Q3g3'\
	380 'rn2kb1r/pp4pp/1qp1p3/3p4/3P1B1Q/1P1BP2Q/P1P2P1P/RN2K1NR w KQkq …
	381 'h3g3'
	382
	383 testpgn 'king moves into range of king (illegal move), but played, so no…
	384 '1. Kd5+'\
	385 '8/8/3k4/8/3K2R1/8/8/8 w - - 0 1'\
	386 'd4d5'
	387
	388 # Long list of moves, checkmate at the end.
	389 testpgn 'Long list of moves, compared to Lichess board analyzer'\
	390 '1. d4 d5 2. Bf4 c6 3. e3 Bf5 4. Bd3 e6 5. g4 Nf6 6. gxf5 Qb6 7.…
	391 'startpos'\
	392 'd2d4 d7d5 c1f4 c7c6 e2e3 c8f5 f1d3 e7e6 g2g4 g8f6 g4f5 d8b6 f5e…
	393
	394 testpgn 'Rook on same file, only one is legal, Rd7d1+ -> Rd1+'\
	395 '34. Rc6 Rd1+ 35. Rxd1 Rxd1#'\
	396 '3r2k1/3r2p1/R6p/4bp2/2P1p2P/7N/2P2PP1/2R3K1 w - - 1 34'\
	397 'a6c6 d7d1 c1d1 d8d1'
	398
	399 testpgn 'black moves pawn en passant into check (not mate, can take en p…
	400 '1. ... c5+'\
	401 'rnbqkbnr/p1pppppp/1p6/1P1PP3/2PKQ3/2PQQ3/P1PP1PPP/RNBQ1BNR b kq…
	402 'c7c5'
	403
	404 # NOTE: Lichess checks if en passant moves can actually be played, but t…
	405 # reference specifies this doesn't necesarily have to be the case.
	406 testpgn 'black moves pawn en passant into checkmate (cant take en passan…
	407 '1. ... c5#'\
	408 'rnbqkbnr/p1p1pppp/1p6/3PP3/2PKQ3/2PQQ3/P1PP1PPP/RNBQ1BNR b kq -…
	409 'c7c5'
	410
	411 # check also if the en passant square is set (but it is not legal to pla…
	412 testpgn 'black moves pawn en passant into checkmate (cant take en passan…
	413 '1. ... c5#'\
	414 'rnbqkbnr/p1p1pppp/1p6/3PP3/2PKQ3/2PQQ3/P1PP1PPP/RNBQ1BNR b kq c…
	415 'c7c5'
	416
	417 testpgn 'Knights on the same rank can move to the same square'\
	418 '1. Nde5'\
	419 'rnbqkbnr/pppppppp/8/8/8/3N1N2/PPPPPPPP/R1BQKB1R w KQkq - 0 1'\
	420 'd3e5'
	421
	422 testpgn 'Knights on the same rank can move to the same square, part 2'\
	423 '1. Nfe5'\
	424 'rnbqkbnr/pppppppp/8/8/8/3N1N2/PPPPPPPP/R1BQKB1R w KQkq - 0 1'\
	425 'f3e5'
	426
	427 testpgn 'Knights on the same same file can move to the same square'\
	428 '1. N3c4'\
	429 'rnbqkbnr/pppppppp/8/4N3/8/4N3/PPPPPPPP/R1BQKB1R w KQkq - 0 1'\
	430 'e3c4'
	431
	432 testpgn 'Knights on the same same file can move to the same square, part…
	433 '1. N5c4'\
	434 'rnbqkbnr/pppppppp/8/4N3/8/4N3/PPPPPPPP/R1BQKB1R w KQkq - 0 1'\
	435 'e5c4'
	436
	437 testpgn 'Knights on the same same file can move to the same square, part…
	438 '1. N5g4'\
	439 'rnbqkbnr/pppppppp/8/4N3/8/4N3/PPPPPPPP/R1BQKB1R w KQkq - 0 1'\
	440 'e5g4'
	441
	442 testpgn 'Rook on the same file can move to the same square'\
	443 '1. R3d4'\
	444 'rnbqkbnr/pppppppp/3R4/8/8/3R4/PPPPPPPP/1NBQKBN1 w kq - 0 1'\
	445 'd3d4'
	446
	447 testpgn 'Rook on the same file can move to the same square, part 2'\
	448 '1. R6d4'\
	449 'rnbqkbnr/pppppppp/3R4/8/8/3R4/PPPPPPPP/1NBQKBN1 w kq - 0 1'\
	450 'd6d4'
	451
	452 testpgn 'Rook on the same rank can move to the same square'\
	453 '1. Rge4'\
	454 'rnbqkbnr/pppppppp/8/8/2R3R1/8/PPPPPPPP/1NBQKBN1 w kq - 0 1'\
	455 'g4e4'
	456
	457 testpgn 'Rook on the same rank can move to the same square, part 2'\
	458 '1. Rce4'\
	459 'rnbqkbnr/pppppppp/8/8/2R3R1/8/PPPPPPPP/1NBQKBN1 w kq - 0 1'\
	460 'c4e4'
	461
	462 testpgn 'Rook on the same rank can take on the same square (with check),…
	463 '1. Rgxe4+'\
	464 'rnbqkbnr/pppp1ppp/8/8/2R1p1R1/8/PPPPPPPP/1NBQKBN1 w kq - 0 1'\
	465 'g4e4'
	466
	467 testpgn 'Rook on the same rank can take on the same square (with check),…
	468 '1. Rcxe4+'\
	469 'rnbqkbnr/pppp1ppp/8/8/2R1p1R1/8/PPPPPPPP/1NBQKBN1 w kq - 0 1'\
	470 'c4e4'
	471
	472 testpgn 'Knights on the same same file can take on the same square'\
	473 '1. N3xc4'\
	474 'rnbqkbnr/pppppppp/8/4N3/2p5/4N3/PPPPPPPP/R1BQKB1R w KQkq - 0 1'\
	475 'e3c4'
	476
	477 testpgn 'Knights on the same same file can take on the same square, part…
	478 '1. N5xc4'\
	479 'rnbqkbnr/pppppppp/8/4N3/2p5/4N3/PPPPPPPP/R1BQKB1R w KQkq - 0 1'\
	480 'e5c4'
	481
	482 testpgn 'Knights on same files and ranks move to same square'\
	483 '1. Nf3e5'\
	484 'rnbqkbnr/pppNpNpp/8/8/8/3N1N2/PPPPPPPP/R1BQKB1R w KQkq - 0 1'\
	485 'f3e5'
	486
	487 testpgn 'Knights on same files and ranks move to same square, part 2'\
	488 '1. Nd7e5'\
	489 'rnbqkbnr/pppNpNpp/8/8/8/3N1N2/PPPPPPPP/R1BQKB1R w KQkq - 0 1'\
	490 'd7e5'
	491
	492 testpgn 'Knights on same files and ranks move to same square, part 3'\
	493 '1. Nd3e5'\
	494 'rnbqkbnr/pppNpNpp/8/8/8/3N1N2/PPPPPPPP/R1BQKB1R w KQkq - 0 1'\
	495 'd3e5'
	496
	497 testpgn '4 knights that can move to the same square, but not on the same…
	498 '1. Nfe5'\
	499 'rnbqkbnr/ppp1pNpp/2N5/8/6N1/3N4/PPPPPPPP/R1BQKB1R w KQkq - 0 1'\
	500 'f7e5'
	501
	502 testpgn '4 knights that can move to the same square, but not on the same…
	503 '1. Nce5'\
	504 'rnbqkbnr/ppp1pNpp/2N5/8/6N1/3N4/PPPPPPPP/R1BQKB1R w KQkq - 0 1'\
	505 'c6e5'
	506
	507 testpgn '4 knights that can move to the same square, but not on the same…
	508 '1. Nde5'\
	509 'rnbqkbnr/ppp1pNpp/2N5/8/6N1/3N4/PPPPPPPP/R1BQKB1R w KQkq - 0 1'\
	510 'd3e5'
	511
	512 testpgn '4 knights that can move to the same square, but not on the same…
	513 '1. Nge5'\
	514 'rnbqkbnr/ppp1pNpp/2N5/8/6N1/3N4/PPPPPPPP/R1BQKB1R w KQkq - 0 1'\
	515 'g4e5'
	516
	517 testpgn 'Move bishop, 2 bishops can move to the same square'\
	518 '1. Bge4'\
	519 'rnbqkbnr/pppppppp/6B1/8/8/3B4/PPPP1PPP/RNBQK1NR w KQkq - 0 1'\
	520 'g6e4'
	521
	522 testpgn 'Move bishop, 2 bishops can move to the same square, part 2'\
	523 '1. Bde4'\
	524 'rnbqkbnr/pppppppp/6B1/8/8/3B4/PPPP1PPP/RNBQK1NR w KQkq - 0 1'\
	525 'd3e4'
	526
	527 testpgn 'Move bishop, 2 bishops can move to the same square, part 3'\
	528 '1. Bde4'\
	529 'rnbqkbnr/pppppppp/2B3B1/8/8/2BB4/PPPP1PPP/RNBQK1NR w KQkq - 0 1…
	530 'd3e4'
	531
	532 # white takes en passant
	533 testpgn 'white takes en passant'\
	534 '3. dxe6'\
	535 'rnbqkbnr/pppp1pp1/8/3Pp2p/8/8/PPP1PPPP/RNBQKBNR w KQkq e6 0 3'\
	536 'd5e6'
	537 # black takes en passant
	538 testpgn 'black takes en passant'\
	539 '3. ... hxg3'\
	540 'rnbqkbnr/ppppppp1/8/8/3P2Pp/4P3/PPP2P1P/RNBQKBNR b KQkq g3 0 3'\
	541 'h4g3'
	542
	543 # NOTE: this is ambigous, but this is not dc6, because the en passant sq…
	544 testpgn 'white is checkmated (en passant square is not set), do not remo…
	545 '1. c6'\
	546 'rnbqkbnr/p2ppppp/1p6/1PpPP3/2PKQ3/2PQQ3/P1PP1PPP/RNBQ1BNR w kq …
	547 'd5c6'
	548
	549 testpgn 'white is not checkmated (en passant square is set and can be pl…
	550 '1. dxc6'\
	551 'rnbqkbnr/p2ppppp/1p6/1PpPP3/2PKQ3/2PQQ3/P1PP1PPP/RNBQ1BNR w kq …
	552 'd5c6'
	553
	554 testpgn 'Smothered mate, mate in 3'\
	555 '1. Nh6+ Kh8 2. Qg8+ Rxg8 3. Nf7#'\
	556 '5rk1/5Npp/8/3Q4/8/8/8/K7 w - - 0 1'\
	557 'f7h6 g8h8 d5g8 f8g8 h6f7'
	558
	559 testpgn 'white is in check, defend with knight and checkmate'\
	560 '1. Ng1#'\
	561 '8/7k/8/8/8/7N/6RR/3r3K w - - 0 1'\
	562 'h3g1'
	563
	564 testpgn 'Black checks white (blunder), white defends with knight and che…
	565 '1. ... Rd1+ 2. Ng1#'\
	566 '8/7k/8/8/3r4/7N/6RR/7K b - - 0 1'\
	567 'd4d1 h3g1'
	568
	569 testpgn 'Test a longer sequence of moves, promotion, castling, etc'\
	570 '1. d4 d5 2. Bf4 c6 3. e3 Bf5 4. Bd3 e6 5. g4 Nf6 6. gxf5 Qb6 7.…
	571 'startpos'\
	572 'd2d4 d7d5 c1f4 c7c6 e2e3 c8f5 f1d3 e7e6 g2g4 g8f6 g4f5 d8b6 f5e…
	573
	574 # test castling chess 960
	575 testpgn 'Castling chess960'\
	576 '1. d3 g6 2. Bc3 d5 3. Bxh8 Rxh8 4. b4 Rg8 5. g3 Bc6 6. Ne3 b5 7…
	577 'qnrkbnrb/pppppppp/8/8/8/8/PPPPPPPP/QNRKBNRB w KQkq - 0 1'\
	578 'd2d3 g7g6 e1c3 d7d5 c3h8 g8h8 b2b4 h8g8 g2g3 e8c6 f1e3 b7b5 a1e…
	579
	580 testpgn 'PGN chess960'\
	581 '1. d3 g6 2. Bc3 d5 3. Bxh8 Rxh8 4. b4 Rg8 5. g3 Bc6 6. Ne3 b5 7…
	582 'qnrkbnrb/pppppppp/8/8/8/8/PPPPPPPP/QNRKBNRB w KQkq - 0 1'\
	583 'd2d3 g7g6 e1c3 d7d5 c3h8 g8h8 b2b4 h8g8 g2g3 e8c6 f1e3 b7b5 a1e…
	584
	585 testpgn 'castling chess960'\
	586 '1. d3 c6 2. Bd2 a5 3. a4 f6 4. Ba2 Bf7 5. Bxf7 Qxf7 6. Nb3 Bc7 …
	587 'rbnkbrqn/pppppppp/8/8/8/8/PPPPPPPP/RBNKBRQN w KQkq - 0 1'\
	588 'd2d3 c7c6 e1d2 a7a5 a2a4 f7f6 b1a2 e8f7 a2f7 g8f7 c1b3 b8c7 g2g…
	589
	590 testpgn 'test castles chess960'\
	591 '14. O-O'\
	592 'r2k1r2/1pb3pp/2ppqp2/p2np3/P3N1P1/1N1P1P2/1PPBP1QP/R2K1R2 w KQk…
	593 'd1g1'
	594
	595 testpgn 'test castles chess960'\
	596 '1. O-O'\
	597 'rk1r1n2/ppqp1bnp/2pbpp2/6p1/4P1P1/1PPN1P1P/P1QPBN1B/RK1R4 w KQk…
	598 'b1g1'
	599
	600 testpgn 'castles chess 960'\
	601 '1. ... O-O'\
	602 'rk1r4/ppqp1bnp/2pbppn1/6p1/4P1P1/1PPN1P1P/P1QPBN1B/RK1R4 b KQkq…
	603 'b8g8'
	604
	605 testpgn 'test file/rank for pawn move (was bug)'\
	606 '7. gxf3 Qh4#'\
	607 'rn1qk1nr/ppp2ppp/3b4/8/8/2N2b2/PPPPP1PP/R1BQKB1R w KQkq - 0 7'\
	608 'g2f3 d8h4'
	609
	610 testpgn 'test en passant check (was bug)'\
	611 '35. Kg4 h5+ 36. gxh6 f5+ 37. Kg5 Rg3#'\
	612 '8/2R2p1p/4k1p1/6P1/5P1P/r5K1/8/8 w - - 1 35'\
	613 'g3g4 h7h5 g5h6 f7f5 g4g5 a3g3'
	614
	615 testpgn 'test ambigous queen move'\
	616 '1. Qf3d5'\
	617 '8/1Q3Q2/8/8/8/1Q3Q2/8/3K2k1 w - - 0 1'\
	618 'f3d5'
	619
	620 testpgn 'test ambigous queen move 2'\
	621 '1. Q7b5'\
	622 '8/1Q3Q2/8/8/8/1Q3Q2/8/3K2k1 w - - 0 1'\
	623 'b7b5'
	624
	625 testpgn 'test ambigous queen move 3'\
	626 '1. Qfe7'\
	627 '8/1Q3Q2/8/8/8/1Q3Q2/8/3K2k1 w - - 0 1'\
	628 'f7e7'
	629 }
	630
	631 tests_fen
	632 tests_pgn
	633
	634 # Test all castle positions for both sides for chess960
	635 # this includes classical positions.
	636
	637 IFS=" "
	638 while read -r kingside f kingpos rpos; do
	639 # test last part of the side that is tested.
	640 # 5RK1 - kingside
	641 # 2KR4 - queenside
	642
	643 # lowercase for black
	644 fb="$(printf '%s' "$f" \| tr '[:upper:]' '[:lower:]')"
	645
	646 # test white kingside or queenside castle.
	647 move="${kingpos}1${rpos}1"
	648 if test "$kingside" = "1"; then
	649 fullfen="${fb}/pppppppp/8/8/8/8/PPPPPPPP/${f} w Kk - 0 1"
	650 expect="${fb}/pppppppp/8/8/8/8/PPPPPPPP/5RK1 b k - 1 1"
	651 else
	652 fullfen="${fb}/pppppppp/8/8/8/8/PPPPPPPP/${f} w Qq - 0 1"
	653 expect="${fb}/pppppppp/8/8/8/8/PPPPPPPP/2KR4 b q - 1 1"
	654 move="${kingpos}1${rpos}1"
	655 fi
	656 testfen "Chess960 position, $fullfen (white), $move, kingside? $…
	657 "$expect" \
	658 "$fullfen" \
	659 "$move"
	660
	661 if test "$kingside" = "1"; then
	662 expect="1. O-O"
	663 else
	664 expect="1. O-O-O"
	665 fi
	666 testpgn "Chess960 position, $fullfen (white), $move" \
	667 "$expect" \
	668 "$fullfen" \
	669 "$move"
	670
	671 # test black kingside or queenside castle.
	672 move="${kingpos}8${rpos}8"
	673 if test "$kingside" = "1"; then
	674 fullfen="${fb}/pppppppp/8/8/8/8/PPPPPPPP/${f} b Kk - 0 1"
	675 expect="5rk1/pppppppp/8/8/8/8/PPPPPPPP/${f} w K - 1 2"
	676 else
	677 fullfen="${fb}/pppppppp/8/8/8/8/PPPPPPPP/${f} b Qq - 0 1"
	678 expect="2kr4/pppppppp/8/8/8/8/PPPPPPPP/${f} w Q - 1 2"
	679 fi
	680 testfen "Chess960 position, $fullfen (black), $move, kingside? $…
	681 "$expect" \
	682 "$fullfen" \
	683 "$move"
	684
	685 if test "$kingside" = "1"; then
	686 expect="1. ... O-O"
	687 else
	688 expect="1. ... O-O-O"
	689 fi
	690 testpgn "Chess960 position, $fullfen (black), $move" \
	691 "$expect" \
	692 "$fullfen" \
	693 "$move"
	694 done <<!
	695 0 1R1K4 d b
	696 0 1R2K3 e b
	697 0 1R3K2 f b
	698 0 1R4K1 g b
	699 0 1RK5 c b
	700 0 2R1K3 e c
	701 0 2R2K2 f c
	702 0 2R3K1 g c
	703 0 2RK4 d c
	704 0 3R1K2 f d
	705 0 3R2K1 g d
	706 0 3RK3 e d
	707 0 4R1K1 g e
	708 0 4RK2 f e
	709 0 5RK1 g f
	710 0 R1K5 c a
	711 0 R2K4 d a
	712 0 R3K3 e a
	713 0 R4K2 f a
	714 0 R5K1 g a
	715 0 RK6 b a
	716 1 1K1R4 b d
	717 1 1K2R3 b e
	718 1 1K3R2 b f
	719 1 1K4R1 b g
	720 1 1K5R b h
	721 1 1KR5 b c
	722 1 2K1R3 c e
	723 1 2K2R2 c f
	724 1 2K3R1 c g
	725 1 2K4R c h
	726 1 2KR4 c d
	727 1 3K1R2 d f
	728 1 3K2R1 d g
	729 1 3K3R d h
	730 1 3KR3 d e
	731 1 4K1R1 e g
	732 1 4K2R e h
	733 1 4KR2 e f
	734 1 5K1R f h
	735 1 5KR1 f g
	736 1 6KR g h
	737 !
	738
	739 if test "$statuscode" = "1"; then
	740 echo "$failed tests failed"
	741 else
	742 echo "All tests OK"
	743 fi
	744
	745 exit "$statuscode"