Win at Chess

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Win at Chess (WAC), a collection of 300 chess positions first compiled and published by Fred Reinfeld in 1958. The tactical postions were taken from actual tournament play, contain scores of traps, sacrifices, mates, winning combinations, and subtle exchanges that will help sharpen players' eyes and test their skills against the masters, and were (or even are) a quite popular test set for chess engines as a sanity check. In 2001, WAC was revised by Fred Wilson and converted into algebraic chess notation.

=See also=
 * WAC 230 at Alexander Szabo

=Publications=
 * Fred Reinfeld (1958, 2001). Win at Chess. (Dover Books on Chess ), ISBN 0-486-41878-2, Google Books,, amazon
 * Alexander Szabo (1984). Computer-Chess Tactics and Strategy. M.Sc. Thesis, University of British Columbia

=Forum Posts=

1997 ...

 * Win At Chess tests by Robert Hyatt, rgcc, February 25, 1997
 * Win at Chess by Don Dailey, CCC, January 16, 1998
 * Bob, please forget WAC testsuite in Crafty testing!! by Jouni Uski, CCC, October 11, 1998 » Crafty

2000 ...

 * WAC Corrections by Alex Szabo, CCC, April 12, 2001
 * The Szabo WAC corrections analyzed... by Dann Corbit, CCC, April 13, 2001
 * A proposed WAC replacement for testing by Gian-Carlo Pascutto, CCC, September 18, 2001
 * Explosion in WAC 102 by David Rasmussen, CCC, January 11, 2002
 * WAC 230 ..solved by by Mike Byrne, CCC, July 07, 2002
 * WACNEW 40% less fails when Sharper get 12x the time by Albert Bertilsson, CCC, March 17, 2003 » Sharper
 * What's best low BF or good WAC result? by Albert Bertilsson, CCC, March 18, 2003
 * wacnew.epd & single search improvements (extensions) by Stefan Knappe, Winboard Forum, June 19, 2003
 * Re: mate threat extension/null move by Don Beal, CCC, October 04, 2004 » Mate Threat Extensions, Null Move and WAC booster

2005 ...

 * WAC 230 and Alexander Szabo's refutation revisted by Dann Corbit, CCC, August 01, 2005
 * Chess program improvement project (copy at TalkChess/ICD) by Stuart Cracraft, Winboard Forum, March 07, 2006
 * WAC.163: 662 node search tree by Steven Edwards, CCC, May 01, 2007
 * Two new WAC solutions by Dann Corbit, CCC, November 12, 2007
 * WAC 109 by Robert Pope, Winboard Forum, June 17, 2008 » Beaches
 * WAC.230 revisited yet again by Dann Corbit, CCC, July 11, 2009
 * WAC Testing by Martin Brown, CCC, November 04, 2009

2010 ...

 * Interpretation of WAC.epd by Fred Hamilton, CCC, March 01, 2010
 * WAC.002 by evaluation? by Luca Hemmerich, CCC, April 18, 2010 » Connected Passed Pawns
 * Stockfish 1.8 demolishes WAC.230 by Dann Corbit, CCC, August 02, 2010
 * Question regarding WAC number 2 by Jacob Børs Lind, CCC, October 18, 2010
 * WAC test by Lucas Braesch, CCC, July 17, 2011
 * WAC.123 by Jon Dart, CCC, July 19, 2012

2015 ...

 * WAC 100 by Fermin Serrano, CCC, March 28, 2017
 * WAC again by Henk van den Belt, CCC, August 21, 2017
 * WAC using coordinate notation? by Erin Dame, CCC, September 17, 2017 » Pure coordinate notation

=EPD Wacnew= The EPD record : 2rr3k/pp3pp1/1nnqbN1p/3pN3/2pP4/2P3Q1/PPB4P/R4RK1 w - - bm Qg6; id "WAC.001"; 8/7p/5k2/5p2/p1p2P2/Pr1pPK2/1P1R3P/8 b - - bm Rxb2; id "WAC.002"; 5rk1/1ppb3p/p1pb4/6q1/3P1p1r/2P1R2P/PP1BQ1P1/5RKN w - - bm Rg3; id "WAC.003"; r1bq2rk/pp3pbp/2p1p1pQ/7P/3P4/2PB1N2/PP3PPR/2KR4 w - - bm Qxh7+; id "WAC.004"; 5k2/6pp/p1qN4/1p1p4/3P4/2PKP2Q/PP3r2/3R4 b - - bm Qc4+; id "WAC.005"; 7k/p7/1R5K/6r1/6p1/6P1/8/8 w - - bm Rb7; id "WAC.006"; rnbqkb1r/pppp1ppp/8/4P3/6n1/7P/PPPNPPP1/R1BQKBNR b KQkq - bm Ne3; id "WAC.007"; r4q1k/p2bR1rp/2p2Q1N/5p2/5p2/2P5/PP3PPP/R5K1 w - - bm Rf7; id "WAC.008"; 3q1rk1/p4pp1/2pb3p/3p4/6Pr/1PNQ4/P1PB1PP1/4RRK1 b - - bm Bh2+; id "WAC.009"; 2br2k1/2q3rn/p2NppQ1/2p1P3/Pp5R/4P3/1P3PPP/3R2K1 w - - bm Rxh7; id "WAC.010"; r1b1kb1r/3q1ppp/pBp1pn2/8/Np3P2/5B2/PPP3PP/R2Q1RK1 w kq - bm Bxc6; id "WAC.011"; 4k1r1/2p3r1/1pR1p3/3pP2p/3P2qP/P4N2/1PQ4P/5R1K b - - bm Qxf3+; id "WAC.012"; 5rk1/pp4p1/2n1p2p/2Npq3/2p5/6P1/P3P1BP/R4Q1K w - - bm Qxf8+; id "WAC.013"; r2rb1k1/pp1q1p1p/2n1p1p1/2bp4/5P2/PP1BPR1Q/1BPN2PP/R5K1 w - - bm Qxh7+; id "WAC.014"; 1R6/1brk2p1/4p2p/p1P1Pp2/P7/6P1/1P4P1/2R3K1 w - - bm Rxb7; id "WAC.015"; r4rk1/ppp2ppp/2n5/2bqp3/8/P2PB3/1PP1NPPP/R2Q1RK1 w - - bm Nc3; id "WAC.016"; 1k5r/pppbn1pp/4q1r1/1P3p2/2NPp3/1QP5/P4PPP/R1B1R1K1 w - - bm Ne5; id "WAC.017"; R7/P4k2/8/8/8/8/r7/6K1 w - - bm Rh8; id "WAC.018"; r1b2rk1/ppbn1ppp/4p3/1QP4q/3P4/N4N2/5PPP/R1B2RK1 w - - bm c6; id "WAC.019"; r2qkb1r/1ppb1ppp/p7/4p3/P1Q1P3/2P5/5PPP/R1B2KNR b kq - bm Bb5; id "WAC.020"; 5rk1/1b3p1p/pp3p2/3n1N2/1P6/P1qB1PP1/3Q3P/4R1K1 w - - bm Qh6; id "WAC.021"; r1bqk2r/ppp1nppp/4p3/n5N1/2BPp3/P1P5/2P2PPP/R1BQK2R w KQkq - bm Ba2 Nxf7; id "WAC.022"; r3nrk1/2p2p1p/p1p1b1p1/2NpPq2/3R4/P1N1Q3/1PP2PPP/4R1K1 w - - bm g4; id "WAC.023"; 6k1/1b1nqpbp/pp4p1/5P2/1PN5/4Q3/P5PP/1B2B1K1 b - - bm Bd4; id "WAC.024"; 3R1rk1/8/5Qpp/2p5/2P1p1q1/P3P3/1P2PK2/8 b - - bm Qh4+; id "WAC.025"; 3r2k1/1p1b1pp1/pq5p/8/3NR3/2PQ3P/PP3PP1/6K1 b - - bm Bf5; id "WAC.026"; 7k/pp4np/2p3p1/3pN1q1/3P4/Q7/1r3rPP/2R2RK1 w - - bm Qf8+; id "WAC.027"; 1r1r2k1/4pp1p/2p1b1p1/p3R3/RqBP4/4P3/1PQ2PPP/6K1 b - - bm Qe1+; id "WAC.028"; r2q2k1/pp1rbppp/4pn2/2P5/1P3B2/6P1/P3QPBP/1R3RK1 w - - bm c6; id "WAC.029"; 1r3r2/4q1kp/b1pp2p1/5p2/pPn1N3/6P1/P3PPBP/2QRR1K1 w - - bm Nxd6; id "WAC.030"; rb3qk1/pQ3ppp/4p3/3P4/8/1P3N2/1P3PPP/3R2K1 w - - bm Qxa8 d6 dxe6 g3; id "WAC.031"; 6k1/p4p1p/1p3np1/2q5/4p3/4P1N1/PP3PPP/3Q2K1 w - - bm Qd8+; id "WAC.032"; 8/p1q2pkp/2Pr2p1/8/P3Q3/6P1/5P1P/2R3K1 w - - bm Qe5+ Qf4; id "WAC.033"; 7k/1b1r2p1/p6p/1p2qN2/3bP3/3Q4/P5PP/1B1R3K b - - bm Bg1; id "WAC.034"; r3r2k/2R3pp/pp1q1p2/8/3P3R/7P/PP3PP1/3Q2K1 w - - bm Rxh7+; id "WAC.035"; 3r4/2p1rk2/1pQq1pp1/7p/1P1P4/P4P2/6PP/R1R3K1 b - - bm Re1+; id "WAC.036"; 2r5/2rk2pp/1pn1pb2/pN1p4/P2P4/1N2B3/nPR1KPPP/3R4 b - - bm Nxd4+; id "WAC.037"; 4k3/p4prp/1p6/2b5/8/2Q3P1/P2R1PKP/4q3 w - - bm Qd3 Rd8+; id "WAC.038"; r1br2k1/pp2bppp/2nppn2/8/2P1PB2/2N2P2/PqN1B1PP/R2Q1R1K w - - bm Na4; id "WAC.039"; 3r1r1k/1p4pp/p4p2/8/1PQR4/6Pq/P3PP2/2R3K1 b - - bm Rc8; id "WAC.040"; 1k6/5RP1/1P6/1K6/6r1/8/8/8 w - - bm Ka5 Kc5 b7; id "WAC.041"; r1b1r1k1/pp1n1pbp/1qp3p1/3p4/1B1P4/Q3PN2/PP2BPPP/R4RK1 w - - bm Ba5; id "WAC.042"; r2q3k/p2P3p/1p3p2/3QP1r1/8/B7/P5PP/2R3K1 w - - bm Be7 Qxa8; id "WAC.043"; 3rb1k1/pq3pbp/4n1p1/3p4/2N5/2P2QB1/PP3PPP/1B1R2K1 b - - bm dxc4; id "WAC.044"; 7k/2p1b1pp/8/1p2P3/1P3r2/2P3Q1/1P5P/R4qBK b - - bm Qxa1; id "WAC.045"; r1bqr1k1/pp1nb1p1/4p2p/3p1p2/3P4/P1N1PNP1/1PQ2PP1/3RKB1R w K - bm Nb5; id "WAC.046"; r1b2rk1/pp2bppp/2n1pn2/q5B1/2BP4/2N2N2/PP2QPPP/2R2RK1 b - - bm Nxd4; id "WAC.047"; 1rbq1rk1/p1p1bppp/2p2n2/8/Q1BP4/2N5/PP3PPP/R1B2RK1 b - - bm Rb4; id "WAC.048"; 2b3k1/4rrpp/p2p4/2pP2RQ/1pP1Pp1N/1P3P1P/1q6/6RK w - - bm Qxh7+; id "WAC.049"; k4r2/1R4pb/1pQp1n1p/3P4/5p1P/3P2P1/r1q1R2K/8 w - - bm Rxb6+; id "WAC.050"; r1bq1r2/pp4k1/4p2p/3pPp1Q/3N1R1P/2PB4/6P1/6K1 w - - bm Rg4+; id "WAC.051"; r1k5/1p3q2/1Qpb4/3N1p2/5Pp1/3P2Pp/PPPK3P/4R3 w - - bm Re7 c4; id "WAC.052"; 6k1/6p1/p7/3Pn3/5p2/4rBqP/P4RP1/5QK1 b - - bm Re1; id "WAC.053"; r3kr2/1pp4p/1p1p4/7q/4P1n1/2PP2Q1/PP4P1/R1BB2K1 b q - bm Qh1+; id "WAC.054"; r3r1k1/pp1q1pp1/4b1p1/3p2B1/3Q1R2/8/PPP3PP/4R1K1 w - - bm Qxg7+; id "WAC.055"; r1bqk2r/pppp1ppp/5n2/2b1n3/4P3/1BP3Q1/PP3PPP/RNB1K1NR b KQkq - bm Bxf2+; id "WAC.056"; r3q1kr/ppp5/3p2pQ/8/3PP1b1/5R2/PPP3P1/5RK1 w - - bm Rf8+; id "WAC.057"; 8/8/2R5/1p2qp1k/1P2r3/2PQ2P1/5K2/8 w - - bm Qd1+; id "WAC.058"; r1b2rk1/2p1qnbp/p1pp2p1/5p2/2PQP3/1PN2N1P/PB3PP1/3R1RK1 w - - bm Nd5; id "WAC.059"; rn1qr1k1/1p2np2/2p3p1/8/1pPb4/7Q/PB1P1PP1/2KR1B1R w - - bm Qh8+; id "WAC.060"; 3qrbk1/ppp1r2n/3pP2p/3P4/2P4P/1P3Q2/PB6/R4R1K w - - bm Qf7+; id "WAC.061"; 6r1/3Pn1qk/p1p1P1rp/2Q2p2/2P5/1P4P1/P3R2P/5RK1 b - - bm Rxg3+; id "WAC.062"; r1brnbk1/ppq2pp1/4p2p/4N3/3P4/P1PB1Q2/3B1PPP/R3R1K1 w - - bm Nxf7; id "WAC.063"; 8/6pp/3q1p2/3n1k2/1P6/3NQ2P/5PP1/6K1 w - - bm g4+; id "WAC.064"; 1r1r1qk1/p2n1p1p/bp1Pn1pQ/2pNp3/2P2P1N/1P5B/P6P/3R1RK1 w - - bm Ne7+; id "WAC.065"; 1k1r2r1/ppq5/1bp4p/3pQ3/8/2P2N2/PP4P1/R4R1K b - - bm Qxe5; id "WAC.066"; 3r2k1/p2q4/1p4p1/3rRp1p/5P1P/6PK/P3R3/3Q4 w - - bm Rxd5; id "WAC.067"; 6k1/5ppp/1q6/2b5/8/2R1pPP1/1P2Q2P/7K w - - bm Qxe3; id "WAC.068"; 2k5/pppr4/4R3/4Q3/2pp2q1/8/PPP2PPP/6K1 w - - bm f3 h3; id "WAC.069"; 2kr3r/pppq1ppp/3p1n2/bQ2p3/1n1PP3/1PN1BN1P/1PP2PP1/2KR3R b - - bm Na2+; id "WAC.070"; 2kr3r/pp1q1ppp/5n2/1Nb5/2Pp1B2/7Q/P4PPP/1R3RK1 w - - bm Nxa7+; id "WAC.071"; r3r1k1/pp1n1ppp/2p5/4Pb2/2B2P2/B1P5/P5PP/R2R2K1 w - - bm e6; id "WAC.072"; r1q3rk/1ppbb1p1/4Np1p/p3pP2/P3P3/2N4R/1PP1Q1PP/3R2K1 w - - bm Qd2; id "WAC.073"; 5r1k/pp4pp/2p5/2b1P3/4Pq2/1PB1p3/P3Q1PP/3N2K1 b - - bm Qf1+; id "WAC.074"; r3r1k1/pppq1ppp/8/8/1Q4n1/7P/PPP2PP1/RNB1R1K1 b - - bm Qd6; id "WAC.075"; r1b1qrk1/2p2ppp/pb1pnn2/1p2pNB1/3PP3/1BP5/PP2QPPP/RN1R2K1 w - - bm Bxf6; id "WAC.076"; 3r2k1/ppp2ppp/6q1/b4n2/3nQB2/2p5/P4PPP/RN3RK1 b - - bm Ng3; id "WAC.077"; r2q3r/ppp2k2/4nbp1/5Q1p/2P1NB2/8/PP3P1P/3RR1K1 w - - bm Ng5+; id "WAC.078"; r3k2r/pbp2pp1/3b1n2/1p6/3P3p/1B2N1Pq/PP1PQP1P/R1B2RK1 b kq - bm Qxh2+; id "WAC.079"; r4rk1/p1B1bpp1/1p2pn1p/8/2PP4/3B1P2/qP2QP1P/3R1RK1 w - - bm Ra1; id "WAC.080"; r4rk1/1bR1bppp/4pn2/1p2N3/1P6/P3P3/4BPPP/3R2K1 b - - bm Bd6; id "WAC.081"; 3rr1k1/pp3pp1/4b3/8/2P1B2R/6QP/P3q1P1/5R1K w - - bm Bh7+; id "WAC.082"; 3rr1k1/ppqbRppp/2p5/8/3Q1n2/2P3N1/PPB2PPP/3R2K1 w - - bm Qxd7; id "WAC.083"; r2q1r1k/2p1b1pp/p1n5/1p1Q1bN1/4n3/1BP1B3/PP3PPP/R4RK1 w - - bm Qg8+; id "WAC.084"; kr2R3/p4r2/2pq4/2N2p1p/3P2p1/Q5P1/5P1P/5BK1 w - - bm Na6; id "WAC.085"; 8/p7/1ppk1n2/5ppp/P1PP4/2P1K1P1/5N1P/8 b - - bm Ng4+; id "WAC.086"; 8/p3k1p1/4r3/2ppNpp1/PP1P4/2P3KP/5P2/8 b - - bm Rxe5; id "WAC.087"; r6k/p1Q4p/2p1b1rq/4p3/B3P3/4P3/PPP3P1/4RRK1 b - - bm Rxg2+; id "WAC.088"; 1r3b1k/p4rpp/4pp2/3q4/2ppbPPQ/6RK/PP5P/2B1NR2 b - - bm g5; id "WAC.089"; 3qrrk1/1pp2pp1/1p2bn1p/5N2/2P5/P1P3B1/1P4PP/2Q1RRK1 w - - bm Nxg7; id "WAC.090"; 2qr2k1/4b1p1/2p2p1p/1pP1p3/p2nP3/PbQNB1PP/1P3PK1/4RB2 b - - bm Be6; id "WAC.091"; r4rk1/1p2ppbp/p2pbnp1/q7/3BPPP1/2N2B2/PPP4P/R2Q1RK1 b - - bm Bxg4; id "WAC.092"; r1b1k1nr/pp3pQp/4pq2/3pn3/8/P1P5/2P2PPP/R1B1KBNR w KQkq - bm Bh6; id "WAC.093"; 8/k7/p7/3Qp2P/n1P5/3KP3/1q6/8 b - - bm e4+; id "WAC.094"; 2r5/1r6/4pNpk/3pP1qp/8/2P1QP2/5PK1/R7 w - - bm Ng4+; id "WAC.095"; r1b4k/ppp2Bb1/6Pp/3pP3/1qnP1p1Q/8/PPP3P1/1K1R3R w - - bm Qd8+ b3; id "WAC.096"; 6k1/5p2/p5np/4B3/3P4/1PP1q3/P3r1QP/6RK w - - bm Qa8+; id "WAC.097"; 1r3rk1/5pb1/p2p2p1/Q1n1q2p/1NP1P3/3p1P1B/PP1R3P/1K2R3 b - - bm Nxe4; id "WAC.098"; r1bq1r1k/1pp1Np1p/p2p2pQ/4R3/n7/8/PPPP1PPP/R1B3K1 w - - bm Rh5; id "WAC.099"; 8/k1b5/P4p2/1Pp2p1p/K1P2P1P/8/3B4/8 w - - bm Be3 b6+; id "WAC.100"; 5rk1/p5pp/8/8/2Pbp3/1P4P1/7P/4RN1K b - - bm Bc3; id "WAC.101"; 2Q2n2/2R4p/1p1qpp1k/8/3P3P/3B2P1/5PK1/r7 w - - bm Qxf8+; id "WAC.102"; 6k1/2pb1r1p/3p1PpQ/p1nPp3/1q2P3/2N2P2/PrB5/2K3RR w - - bm Qxg6+; id "WAC.103"; b4r1k/pq2rp2/1p1bpn1p/3PN2n/2P2P2/P2B3K/1B2Q2N/3R2R1 w - - bm Qxh5; id "WAC.104"; r2r2k1/pb3ppp/1p1bp3/7q/3n2nP/PP1B2P1/1B1N1P2/RQ2NRK1 b - - bm Bxg3 Qxh4; id "WAC.105"; 4rrk1/pppb4/7p/3P2pq/3Qn3/P5P1/1PP4P/R3RNNK b - - bm Nf2+; id "WAC.106"; 5n2/pRrk2p1/P4p1p/4p3/3N4/5P2/6PP/6K1 w - - bm Nb5; id "WAC.107"; r5k1/1q4pp/2p5/p1Q5/2P5/5R2/4RKPP/r7 w - - bm Qe5; id "WAC.108"; rn2k1nr/pbp2ppp/3q4/1p2N3/2p5/QP6/PB1PPPPP/R3KB1R b KQkq - bm c3; id "WAC.109"; 2kr4/bp3p2/p2p2b1/P7/2q5/1N4B1/1PPQ2P1/2KR4 b - - bm Be3; id "WAC.110"; 6k1/p5p1/5p2/2P2Q2/3pN2p/3PbK1P/7P/6q1 b - - bm Qf1+; id "WAC.111"; r4kr1/ppp5/4bq1b/7B/2PR1Q1p/2N3P1/PP3P1P/2K1R3 w - - bm Rxe6; id "WAC.112"; rnbqkb1r/1p3ppp/5N2/1p2p1B1/2P5/8/PP2PPPP/R2QKB1R b KQkq - bm Qxf6; id "WAC.113"; r1b1rnk1/1p4pp/p1p2p2/3pN2n/3P1PPq/2NBPR1P/PPQ5/2R3K1 w - - bm Bxh7+; id "WAC.114"; 4N2k/5rpp/1Q6/p3q3/8/P5P1/1P3P1P/5K2 w - - bm Nd6; id "WAC.115"; r2r2k1/2p2ppp/p7/1p2P1n1/P6q/5P2/1PB1QP1P/R5RK b - - bm Rd2; id "WAC.116"; 3r1rk1/q4ppp/p1Rnp3/8/1p6/1N3P2/PP3QPP/3R2K1 b - - bm Ne4; id "WAC.117"; r5k1/pb2rpp1/1p6/2p4q/5R2/2PB2Q1/P1P3PP/5R1K w - - bm Rh4; id "WAC.118"; r2qr1k1/p1p2ppp/2p5/2b5/4nPQ1/3B4/PPP3PP/R1B2R1K b - - bm Qxd3; id "WAC.119"; r4rk1/1bn2qnp/3p1B1Q/p2P1pP1/1pp5/5N1P/PPB2P2/2KR3R w - - bm Rhg1 g6; id "WAC.120"; 6k1/5p1p/2bP2pb/4p3/2P5/1p1pNPPP/1P1Q1BK1/1q6 b - - bm Bxf3+; id "WAC.121"; 1k6/ppp4p/1n2pq2/1N2Rb2/2P2Q2/8/P4KPP/3r1B2 b - - bm Rxf1+; id "WAC.122"; 6k1/1b2rp2/1p4p1/3P4/PQ4P1/2N2q2/5P2/3R2K1 b - - bm Bxd5 Rc7 Re6; id "WAC.123"; 6k1/3r4/2R5/P5P1/1P4p1/8/4rB2/6K1 b - - bm g3; id "WAC.124"; r1bqr1k1/pp3ppp/1bp5/3n4/3B4/2N2P1P/PPP1B1P1/R2Q1RK1 b - - bm Bxd4+; id "WAC.125"; r5r1/pQ5p/1qp2R2/2k1p3/4P3/2PP4/P1P3PP/6K1 w - - bm Rxc6+; id "WAC.126"; 2k4r/1pr1n3/p1p1q2p/5pp1/3P1P2/P1P1P3/1R2Q1PP/1RB3K1 w - - bm Rxb7; id "WAC.127"; 6rk/1pp2Qrp/3p1B2/1pb1p2R/3n1q2/3P4/PPP3PP/R6K w - - bm Qg6; id "WAC.128"; 3r1r1k/1b2b1p1/1p5p/2p1Pp2/q1B2P2/4P2P/1BR1Q2K/6R1 b - - bm Bf3; id "WAC.129"; 6k1/1pp3q1/5r2/1PPp4/3P1pP1/3Qn2P/3B4/4R1K1 b - - bm Qh6 Qh8; id "WAC.130"; 2rq1bk1/p4p1p/1p4p1/3b4/3B1Q2/8/P4PpP/3RR1K1 w - - bm Re8; id "WAC.131"; 4r1k1/5bpp/2p5/3pr3/8/1B3pPq/PPR2P2/2R2QK1 b - - bm Re1; id "WAC.132"; r1b1k2r/1pp1q2p/p1n3p1/3QPp2/8/1BP3B1/P5PP/3R1RK1 w kq - bm Bh4; id "WAC.133"; 3r2k1/p6p/2Q3p1/4q3/2P1p3/P3Pb2/1P3P1P/2K2BR1 b - - bm Rd1+; id "WAC.134"; 3r1r1k/N2qn1pp/1p2np2/2p5/2Q1P2N/3P4/PP4PP/3R1RK1 b - - bm Nd4; id "WAC.135"; 6kr/1q2r1p1/1p2N1Q1/5p2/1P1p4/6R1/7P/2R3K1 w - - bm Rc8+; id "WAC.136"; 3b1rk1/1bq3pp/5pn1/1p2rN2/2p1p3/2P1B2Q/1PB2PPP/R2R2K1 w - - bm Rd7; id "WAC.137"; r1bq3r/ppppR1p1/5n1k/3P4/6pP/3Q4/PP1N1PP1/5K1R w - - bm h5; id "WAC.138"; rnb3kr/ppp2ppp/1b6/3q4/3pN3/Q4N2/PPP2KPP/R1B1R3 w - - bm Nf6+; id "WAC.139"; r2b1rk1/pq4p1/4ppQP/3pB1p1/3P4/2R5/PP3PP1/5RK1 w - - bm Bc7 Rc7; id "WAC.140"; 4r1k1/p1qr1p2/2pb1Bp1/1p5p/3P1n1R/1B3P2/PP3PK1/2Q4R w - - bm Qxf4; id "WAC.141"; r2q3n/ppp2pk1/3p4/5Pr1/2NP1Qp1/2P2pP1/PP3K2/4R2R w - - bm Re8 f6+; id "WAC.142"; 5b2/pp2r1pk/2pp1pRp/4rP1N/2P1P3/1P4QP/P3q1P1/5R1K w - - bm Rxh6+; id "WAC.143"; r2q1rk1/pp3ppp/2p2b2/8/B2pPPb1/7P/PPP1N1P1/R2Q1RK1 b - - bm d3; id "WAC.144"; r1bq4/1p4kp/3p1n2/p4pB1/2pQ4/8/1P4PP/4RRK1 w - - bm Re8; id "WAC.145"; 8/8/2Kp4/3P1B2/2P2k2/5p2/8/8 w - - bm Bc8 Bd3 Bh3; id "WAC.146"; r2r2k1/ppqbppbp/2n2np1/2pp4/6P1/1P1PPNNP/PBP2PB1/R2QK2R b KQ - bm Nxg4; id "WAC.147"; 2r1k3/6pr/p1nBP3/1p3p1p/2q5/2P5/P1R4P/K2Q2R1 w - - bm Rxg7; id "WAC.148"; 6k1/6p1/2p4p/4Pp2/4b1qP/2Br4/1P2RQPK/8 b - - bm Bxg2; id "WAC.149"; r3r1k1/5p2/pQ1b2pB/1p6/4p3/6P1/Pq2BP1P/2R3K1 b - - bm Ba3 Be5 Bf8 e3; c0 "All win but e3 is best."; id "WAC.150"; 8/3b2kp/4p1p1/pr1n4/N1N4P/1P4P1/1K3P2/3R4 w - - bm Nc3; id "WAC.151"; 1br2rk1/1pqb1ppp/p3pn2/8/1P6/P1N1PN1P/1B3PP1/1QRR2K1 w - - bm Ne4; id "WAC.152"; 2r3k1/q4ppp/p3p3/pnNp4/2rP4/2P2P2/4R1PP/2R1Q1K1 b - - bm Nxd4; id "WAC.153"; r1b2rk1/2p2ppp/p7/1p6/3P3q/1BP3bP/PP3QP1/RNB1R1K1 w - - bm Qxf7+; id "WAC.154"; 5bk1/1rQ4p/5pp1/2pP4/3n1PP1/7P/1q3BB1/4R1K1 w - - bm d6; id "WAC.155"; r1b1qN1k/1pp3p1/p2p3n/4p1B1/8/1BP4Q/PP3KPP/8 w - - bm Qxh6+; id "WAC.156"; 5rk1/p4ppp/2p1b3/3Nq3/4P1n1/1p1B2QP/1PPr2P1/1K2R2R w - - bm Ne7+; id "WAC.157"; 5rk1/n1p1R1bp/p2p4/1qpP1QB1/7P/2P3P1/PP3P2/6K1 w - - bm Rxg7+; id "WAC.158"; r1b2r2/5P1p/ppn3pk/2p1p1Nq/1bP1PQ2/3P4/PB4BP/1R3RK1 w - - bm Ne6+; id "WAC.159"; qn1kr2r/1pRbb3/pP5p/P2pP1pP/3N1pQ1/3B4/3B1PP1/R5K1 w - - bm Qxd7+; id "WAC.160"; 3r3k/3r1P1p/pp1Nn3/2pp4/7Q/6R1/Pq4PP/5RK1 w - - bm Qxd8+; id "WAC.161"; r3kbnr/p4ppp/2p1p3/8/Q1B3b1/2N1B3/PP3PqP/R3K2R w KQkq - bm Bd5; id "WAC.162"; 5rk1/2p4p/2p4r/3P4/4p1b1/1Q2NqPp/PP3P1K/R4R2 b - - bm Qg2+; id "WAC.163"; 8/6pp/4p3/1p1n4/1NbkN1P1/P4P1P/1PR3K1/r7 w - - bm Rxc4+; id "WAC.164"; 1r5k/p1p3pp/8/8/4p3/P1P1R3/1P1Q1qr1/2KR4 w - - bm Re2; id "WAC.165"; r3r1k1/5pp1/p1p4p/2Pp4/8/q1NQP1BP/5PP1/4K2R b K - bm d4; id "WAC.166"; 7Q/ppp2q2/3p2k1/P2Ppr1N/1PP5/7R/5rP1/6K1 b - - bm Rxg2+; id "WAC.167"; r3k2r/pb1q1p2/8/2p1pP2/4p1p1/B1P1Q1P1/P1P3K1/R4R2 b kq - bm Qd2+; id "WAC.168"; 5rk1/1pp3bp/3p2p1/2PPp3/1P2P3/2Q1B3/4q1PP/R5K1 b - - bm Bh6; id "WAC.169"; 5r1k/6Rp/1p2p3/p2pBp2/1qnP4/4P3/Q4PPP/6K1 w - - bm Qxc4; id "WAC.170"; 2rq4/1b2b1kp/p3p1p1/1p1nNp2/7P/1B2B1Q1/PP3PP1/3R2K1 w - - bm Bh6+; id "WAC.171"; 5r1k/p5pp/8/1P1pq3/P1p2nR1/Q7/5BPP/6K1 b - - bm Qe1+; id "WAC.172"; 2r1b3/1pp1qrk1/p1n1P1p1/7R/2B1p3/4Q1P1/PP3PP1/3R2K1 w - - bm Qh6+; id "WAC.173"; 2r2rk1/6p1/p3pq1p/1p1b1p2/3P1n2/PP3N2/3N1PPP/1Q2RR1K b - - bm Nxg2; id "WAC.174"; r5k1/pppb3p/2np1n2/8/3PqNpP/3Q2P1/PPP5/R4RK1 w - - bm Nh5; id "WAC.175"; r1bq3r/ppp2pk1/3p1pp1/8/2BbPQ2/2NP2P1/PPP4P/R4R1K b - - bm Rxh2+; id "WAC.176"; r1b3r1/4qk2/1nn1p1p1/3pPp1P/p4P2/1p3BQN/PKPBN3/3R3R b - - bm Qa3+; id "WAC.177"; 3r2k1/p1rn1p1p/1p2pp2/6q1/3PQNP1/5P2/P1P4R/R5K1 w - - bm Nxe6; id "WAC.178"; r1b2r1k/pp4pp/3p4/3B4/8/1QN3Pn/PP3q1P/R3R2K b - - bm Qg1+; id "WAC.179"; r1q2rk1/p3bppb/3p1n1p/2nPp3/1p2P1P1/6NP/PP2QPB1/R1BNK2R b KQ - bm Nxd5; id "WAC.180"; r3k2r/2p2p2/p2p1n2/1p2p3/4P2p/1PPPPp1q/1P5P/R1N2QRK b kq - bm Ng4; id "WAC.181"; r1b2rk1/ppqn1p1p/2n1p1p1/2b3N1/2N5/PP1BP3/1B3PPP/R2QK2R w KQ - bm Qh5; id "WAC.182"; 1r2k1r1/5p2/b3p3/1p2b1B1/3p3P/3B4/PP2KP2/2R3R1 w - - bm Bf6; id "WAC.183"; 4kn2/r4p1r/p3bQ2/q1nNP1Np/1p5P/8/PPP3P1/2KR3R w - - bm Qe7+; id "WAC.184"; 1r1rb1k1/2p3pp/p2q1p2/3PpP1Q/Pp1bP2N/1B5R/1P4PP/2B4K w - - bm Qxh7+; id "WAC.185"; r5r1/p1q2p1k/1p1R2pB/3pP3/6bQ/2p5/P1P1NPPP/6K1 w - - bm Bf8+; id "WAC.186"; 6k1/5p2/p3p3/1p3qp1/2p1Qn2/2P1R3/PP1r1PPP/4R1K1 b - - bm Nh3+; id "WAC.187"; 3RNbk1/pp3p2/4rQpp/8/1qr5/7P/P4P2/3R2K1 w - - bm Qg7+; id "WAC.188"; 3r1k2/1ppPR1n1/p2p1rP1/3P3p/4Rp1N/5K2/P1P2P2/8 w - - bm Re8+; id "WAC.189"; 8/p2b2kp/1q1p2p1/1P1Pp3/4P3/3B2P1/P2Q3P/2Nn3K b - - bm Bh3; id "WAC.190"; 2r1Rn1k/1p1q2pp/p7/5p2/3P4/1B4P1/P1P1QP1P/6K1 w - - bm Qc4; id "WAC.191"; r3k3/ppp2Npp/4Bn2/2b5/1n1pp3/N4P2/PPP3qP/R2QKR2 b Qq - bm Nd3+; id "WAC.192"; 5bk1/p4ppp/Qp6/4B3/1P6/Pq2P1P1/2rr1P1P/R4RK1 b - - bm Qxe3; id "WAC.193"; 5rk1/ppq2ppp/2p5/4bN2/4P3/6Q1/PPP2PPP/3R2K1 w - - bm Nh6+; id "WAC.194"; 3r1rk1/1p3p2/p3pnnp/2p3p1/2P2q2/1P5P/PB2QPPN/3RR1K1 w - - bm g3; id "WAC.195"; rr4k1/p1pq2pp/Q1n1pn2/2bpp3/4P3/2PP1NN1/PP3PPP/R1B1K2R b KQ - bm Nb4; id "WAC.196"; 7k/1p4p1/7p/3P1n2/4Q3/2P2P2/PP3qRP/7K b - - bm Qf1+; id "WAC.197"; 2br2k1/ppp2p1p/4p1p1/4P2q/2P1Bn2/2Q5/PP3P1P/4R1RK b - - bm Rd3; id "WAC.198"; r1br2k1/pp2nppp/2n5/1B1q4/Q7/4BN2/PP3PPP/2R2RK1 w - - bm Bxc6 Rcd1 Rfd1; id "WAC.199"; 2rqrn1k/pb4pp/1p2pp2/n2P4/2P3N1/P2B2Q1/1B3PPP/2R1R1K1 w - - bm Bxf6; id "WAC.200"; 2b2r1k/4q2p/3p2pQ/2pBp3/8/6P1/1PP2P1P/R5K1 w - - bm Ra7; id "WAC.201"; QR2rq1k/2p3p1/3p1pPp/8/4P3/8/P1r3PP/1R4K1 b - - bm Rxa2; id "WAC.202"; r4rk1/5ppp/p3q1n1/2p2NQ1/4n3/P3P3/1B3PPP/1R3RK1 w - - bm Qh6; id "WAC.203"; r1b1qrk1/1p3ppp/p1p5/3Nb3/5N2/P7/1P4PQ/K1R1R3 w - - bm Rxe5; id "WAC.204"; r3rnk1/1pq2bb1/p4p2/3p1Pp1/3B2P1/1NP4R/P1PQB3/2K4R w - - bm Qxg5; id "WAC.205"; 1Qq5/2P1p1kp/3r1pp1/8/8/7P/p4PP1/2R3K1 b - - bm Rc6; id "WAC.206"; r1bq2kr/p1pp1ppp/1pn1p3/4P3/2Pb2Q1/BR6/P4PPP/3K1BNR w - - bm Qxg7+; id "WAC.207"; 3r1bk1/ppq3pp/2p5/2P2Q1B/8/1P4P1/P6P/5RK1 w - - bm Bf7+; id "WAC.208"; 4kb1r/2q2p2/r2p4/pppBn1B1/P6P/6Q1/1PP5/2KRR3 w k - bm Rxe5+; id "WAC.209"; 3r1rk1/pp1q1ppp/3pn3/2pN4/5PP1/P5PQ/1PP1B3/1K1R4 w - - bm Rh1; id "WAC.210"; r1bqrk2/pp1n1n1p/3p1p2/P1pP1P1Q/2PpP1NP/6R1/2PB4/4RBK1 w - - bm Qxf7+; id "WAC.211"; rn1qr2Q/pbppk1p1/1p2pb2/4N3/3P4/2N5/PPP3PP/R4RK1 w - - bm Qxg7+; id "WAC.212"; 3r1r1k/1b4pp/ppn1p3/4Pp1R/Pn5P/3P4/4QP2/1qB1NKR1 w - - bm Rxh7+; id "WAC.213"; r2r2k1/1p2qpp1/1np1p1p1/p3N3/2PPN3/bP5R/4QPPP/4R1K1 w - - bm Ng5; id "WAC.214"; 3r2k1/pb1q1pp1/1p2pb1p/8/3N4/P2QB3/1P3PPP/1Br1R1K1 w - - bm Qh7+; id "WAC.215"; r2qr1k1/1b1nbppp/p3pn2/1p1pN3/3P1B2/2PB1N2/PP2QPPP/R4RK1 w - - bm Nxf7 a4; id "WAC.216"; r3kb1r/1pp3p1/p3bp1p/5q2/3QN3/1P6/PBP3P1/3RR1K1 w kq - bm Qd7+; id "WAC.217"; 6k1/pp5p/2p3q1/6BP/2nPr1Q1/8/PP3R1K/8 w - - bm Bh6; id "WAC.218"; 7k/p4q1p/1pb5/2p5/4B2Q/2P1B3/P6P/7K b - - bm Qf1+; id "WAC.219"; 3rr1k1/ppp2ppp/8/5Q2/4n3/1B5R/PPP1qPP1/5RK1 b - - bm Qxf1+; id "WAC.220"; r3k3/P5bp/2N1bp2/4p3/2p5/6NP/1PP2PP1/3R2K1 w q - bm Rd8+; id "WAC.221"; 2r1r2k/1q3ppp/p2Rp3/2p1P3/6QB/p3P3/bP3PPP/3R2K1 w - - bm Bf6; id "WAC.222"; r1bqk2r/pp3ppp/5n2/8/1b1npB2/2N5/PP1Q2PP/1K2RBNR w kq - bm Nxe4; id "WAC.223"; 5rk1/p1q3pp/1p1r4/2p1pp1Q/1PPn1P2/3B3P/P2R2P1/3R2K1 b - - bm Rh6 e4; id "WAC.224"; 4R3/4q1kp/6p1/1Q3b2/1P1b1P2/6KP/8/8 b - - bm Qh4+; id "WAC.225"; 2b2rk1/p1p4p/2p1p1p1/br2N1Q1/1p2q3/8/PB3PPP/3R1RK1 w - - bm Nf7; id "WAC.226"; 2k1rb1r/ppp3pp/2np1q2/5b2/2B2P2/2P1BQ2/PP1N1P1P/2KR3R b - - bm d5; id "WAC.227"; r4rk1/1bq1bp1p/4p1p1/p2p4/3BnP2/1N1B3R/PPP3PP/R2Q2K1 w - - bm Bxe4; id "WAC.228"; 8/8/8/1p5r/p1p1k1pN/P2pBpP1/1P1K1P2/8 b - - bm Rxh4 b4; id "WAC.229"; 2b5/1r6/2kBp1p1/p2pP1P1/2pP4/1pP3K1/1R3P2/8 b - - bm Rb4; id "WAC.230"; r4rk1/1b1nqp1p/p5p1/1p2PQ2/2p5/5N2/PP3PPP/R1BR2K1 w - - bm Bg5; id "WAC.231"; 1R2rq1k/2p3p1/Q2p1pPp/8/4P3/8/P1r3PP/1R4K1 w - - bm Qb5 Rxe8; id "WAC.232"; 5rk1/p1p2r1p/2pp2p1/4p3/PPPnP3/3Pq1P1/1Q1R1R1P/4NK2 b - - bm Nb3; id "WAC.233"; 2kr1r2/p6p/5Pp1/2p5/1qp2Q1P/7R/PP6/1KR5 w - - bm Rb3; id "WAC.234"; 5r2/1p1RRrk1/4Qq1p/1PP3p1/8/4B3/1b3P1P/6K1 w - - bm Qe4 Qxf7+ Rxf7+; id "WAC.235"; 1R6/p5pk/4p2p/4P3/8/2r3qP/P3R1b1/4Q1K1 b - - bm Rc1; id "WAC.236"; r5k1/pQp2qpp/8/4pbN1/3P4/6P1/PPr4P/1K1R3R b - - bm Rc1+; id "WAC.237"; 1k1r4/pp1r1pp1/4n1p1/2R5/2Pp1qP1/3P2QP/P4PB1/1R4K1 w - - bm Bxb7; id "WAC.238"; 8/6k1/5pp1/Q6p/5P2/6PK/P4q1P/8 b - - bm Qf1+; id "WAC.239"; 2b4k/p1b2p2/2p2q2/3p1PNp/3P2R1/3B4/P1Q2PKP/4r3 w - - bm Qxc6; id "WAC.240"; 2rq1rk1/pp3ppp/2n2b2/4NR2/3P4/PB5Q/1P4PP/3R2K1 w - - bm Qxh7+; id "WAC.241"; r1b1r1k1/pp1nqp2/2p1p1pp/8/4N3/P1Q1P3/1P3PPP/1BRR2K1 w - - bm Rxd7; id "WAC.242"; 1r3r1k/3p4/1p1Nn1R1/4Pp1q/pP3P1p/P7/5Q1P/6RK w - - bm Qe2; id "WAC.243"; r6r/pp3ppp/3k1b2/2pb4/B4Pq1/2P1Q3/P5PP/1RBR2K1 w - - bm Qxc5+; id "WAC.244"; 4rrn1/ppq3bk/3pPnpp/2p5/2PB4/2NQ1RPB/PP5P/5R1K w - - bm Qxg6+; id "WAC.245"; 6R1/4qp1p/ppr1n1pk/8/1P2P1QP/6N1/P4PP1/6K1 w - - bm Qh5+; id "WAC.246"; 2k1r3/1p2Bq2/p2Qp3/Pb1p1p1P/2pP1P2/2P5/2P2KP1/1R6 w - - bm Rxb5; id "WAC.247"; 5r1k/1p4pp/3q4/3Pp1R1/8/8/PP4PP/4Q1K1 b - - bm Qc5+; id "WAC.248"; r4rk1/pbq2pp1/1ppbpn1p/8/2PP4/1P1Q1N2/PBB2PPP/R3R1K1 w - - bm c5 d5; id "WAC.249"; 1b5k/7P/p1p2np1/2P2p2/PP3P2/4RQ1R/q2r3P/6K1 w - - bm Re8+; id "WAC.250"; k7/p4p2/P1q1b1p1/3p3p/3Q4/7P/5PP1/1R4K1 w - - bm Qe5 Qf4; id "WAC.251"; 1rb1r1k1/p1p2ppp/5n2/2pP4/5P2/2QB4/qNP3PP/2KRB2R b - - bm Bg4 Re2; c0 "Bg4 wins, but Re2 is far better."; id "WAC.252"; k5r1/p4b2/2P5/5p2/3P1P2/4QBrq/P5P1/4R1K1 w - - bm Qe8+; id "WAC.253"; r6k/pp3p1p/2p1bp1q/b3p3/4Pnr1/2PP2NP/PP1Q1PPN/R2B2RK b - - bm Nxh3; id "WAC.254"; 3r3r/p4pk1/5Rp1/3q4/1p1P2RQ/5N2/P1P4P/2b4K w - - bm Rfxg6+; id "WAC.255"; 3r1rk1/1pb1qp1p/2p3p1/p7/P2Np2R/1P5P/1BP2PP1/3Q1BK1 w - - bm Nf5; id "WAC.256"; 4r1k1/pq3p1p/2p1r1p1/2Q1p3/3nN1P1/1P6/P1P2P1P/3RR1K1 w - - bm Rxd4; id "WAC.257"; r3brkn/1p5p/2p2Ppq/2Pp3B/3Pp2Q/4P1R1/6PP/5R1K w - - bm Bxg6; id "WAC.258"; r1bq1rk1/ppp2ppp/2np4/2bN1PN1/2B1P3/3p4/PPP2nPP/R1BQ1K1R w - - bm Qh5; id "WAC.259"; 2r2b1r/p1Nk2pp/3p1p2/N2Qn3/4P3/q6P/P4PP1/1R3K1R w - - bm Qe6+; id "WAC.260"; r5k1/1bp3pp/p2p4/1p6/5p2/1PBP1nqP/1PP3Q1/R4R1K b - - bm Nd4; id "WAC.261"; 6k1/p1B1b2p/2b3r1/2p5/4p3/1PP1N1Pq/P2R1P2/3Q2K1 b - - bm Rh6; id "WAC.262"; rnbqr2k/pppp1Qpp/8/b2NN3/2B1n3/8/PPPP1PPP/R1B1K2R w KQ - bm Qg8+; id "WAC.263"; r2r2k1/1R2qp2/p5pp/2P5/b1PN1b2/P7/1Q3PPP/1B1R2K1 b - - bm Qe5 Rab8; id "WAC.264"; 2r1k2r/2pn1pp1/1p3n1p/p3PP2/4q2B/P1P5/2Q1N1PP/R4RK1 w k - bm exf6; id "WAC.265"; r3q2r/2p1k1p1/p5p1/1p2Nb2/1P2nB2/P7/2PNQbPP/R2R3K b - - bm Rxh2+; id "WAC.266"; 2r1kb1r/pp3ppp/2n1b3/1q1N2B1/1P2Q3/8/P4PPP/3RK1NR w Kk - bm Nc7+; id "WAC.267"; 2r3kr/ppp2n1p/7B/5q1N/1bp5/2Pp4/PP2RPPP/R2Q2K1 w - - bm Re8+; id "WAC.268"; 2kr2nr/pp1n1ppp/2p1p3/q7/1b1P1B2/P1N2Q1P/1PP1BPP1/R3K2R w KQ - bm axb4; id "WAC.269"; 2r1r1k1/pp1q1ppp/3p1b2/3P4/3Q4/5N2/PP2RPPP/4R1K1 w - - bm Qg4; id "WAC.270"; 2kr4/ppp3Pp/4RP1B/2r5/5P2/1P6/P2p4/3K4 w - - bm Rd6; id "WAC.271"; nrq4r/2k1p3/1p1pPnp1/pRpP1p2/P1P2P2/2P1BB2/1R2Q1P1/6K1 w - - bm Bxc5; id "WAC.272"; 2k4B/bpp1qp2/p1b5/7p/1PN1n1p1/2Pr4/P5PP/R3QR1K b - - bm Ng3+ g3; id "WAC.273"; 8/1p6/p5R1/k7/Prpp4/K7/1NP5/8 w - - am Rd6; bm Rb6 Rg5+; id "WAC.274"; r1b2rk1/1p1n1ppp/p1p2q2/4p3/P1B1Pn2/1QN2N2/1P3PPP/3R1RK1 b - - bm Nc5 Nxg2 b5; id "WAC.275"; r5k1/pp1RR1pp/1b6/6r1/2p5/B6P/P4qPK/3Q4 w - - bm Qd5+; id "WAC.276"; 1r4r1/p2kb2p/bq2p3/3p1p2/5P2/2BB3Q/PP4PP/3RKR2 b - - bm Rg3 Rxg2; id "WAC.277"; r2qkb1r/pppb2pp/2np1n2/5pN1/2BQP3/2N5/PPP2PPP/R1B1K2R w KQkq - bm Bf7+; id "WAC.278"; r7/4b3/2p1r1k1/1p1pPp1q/1P1P1P1p/PR2NRpP/2Q3K1/8 w - - bm Nxf5 Rc3; id "WAC.279"; r1r2bk1/5p1p/pn4p1/N2b4/3Pp3/B3P3/2q1BPPP/RQ3RK1 b - - bm Bxa3; id "WAC.280"; 2R5/2R4p/5p1k/6n1/8/1P2QPPq/r7/6K1 w - - bm Rxh7+; id "WAC.281"; 6k1/2p3p1/1p1p1nN1/1B1P4/4PK2/8/2r3b1/7R w - - bm Rh8+; id "WAC.282"; 3q1rk1/4bp1p/1n2P2Q/3p1p2/6r1/Pp2R2N/1B4PP/7K w - - bm Ng5; id "WAC.283"; 3r3k/pp4pp/8/1P6/3N4/Pn2P1qb/1B1Q2B1/2R3K1 w - - bm Nf5; id "WAC.284"; 2rr3k/1b2bppP/p2p1n2/R7/3P4/1qB2P2/1P4Q1/1K5R w - - bm Qxg7+; id "WAC.285"; 3r1k2/1p6/p4P2/2pP2Qb/8/1P1KB3/P6r/8 b - - bm Rxd5+; id "WAC.286"; rn3k1r/pp2bBpp/2p2n2/q5N1/3P4/1P6/P1P3PP/R1BQ1RK1 w - - bm Qg4 Qh5; id "WAC.287"; r1b2rk1/p4ppp/1p1Qp3/4P2N/1P6/8/P3qPPP/3R1RK1 w - - bm Nf6+; id "WAC.288"; 2r3k1/5p1p/p3q1p1/2n3P1/1p1QP2P/1P4N1/PK6/2R5 b - - bm Qe5; id "WAC.289"; 2k2r2/2p5/1pq5/p1p1n3/P1P2n1B/1R4Pp/2QR4/6K1 b - - bm Ne2+; id "WAC.290"; 5r1k/3b2p1/p6p/1pRpR3/1P1P2q1/P4pP1/5QnP/1B4K1 w - - bm h3; id "WAC.291"; 4r3/1Q1qk2p/p4pp1/3Pb3/P7/6PP/5P2/4R1K1 w - - bm d6+; id "WAC.292"; 1nbq1r1k/3rbp1p/p1p1pp1Q/1p6/P1pPN3/5NP1/1P2PPBP/R4RK1 w - - bm Nfg5; id "WAC.293"; 3r3k/1r3p1p/p1pB1p2/8/p1qNP1Q1/P6P/1P4P1/3R3K w - - bm Bf8 Nf5 Qf4; id "WAC.294"; 4r3/p4r1p/R1p2pp1/1p1bk3/4pNPP/2P1K3/2P2P2/3R4 w - - bm Rxd5+; id "WAC.295"; 3r4/1p2k2p/p1b1p1p1/4Q1Pn/2B3KP/4pP2/PP2R1N1/6q1 b - - bm Rd4+ Rf8; id "WAC.296"; 3r1rk1/p3qp1p/2bb2p1/2p5/3P4/1P6/PBQN1PPP/2R2RK1 b - - bm Bxg2 Bxh2+; id "WAC.297"; 3Q4/p3b1k1/2p2rPp/2q5/4B3/P2P4/7P/6RK w - - bm Qh8+; id "WAC.298"; 1n2rr2/1pk3pp/pNn2p2/2N1p3/8/6P1/PP2PPKP/2RR4 w - - bm Nca4; id "WAC.299"; b2b1r1k/3R1ppp/4qP2/4p1PQ/4P3/5B2/4N1K1/8 w - - bm g6; id "WAC.300";

=External Links=
 * Win at Chess (WAC) from John Bergbom

=References=

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