Sting SF 9.5

[lech]

download: http://www.mediafire.com/file/po3o2luce ... -sf-95.zip

Sting is based on Stockfish 2.1.1 and doesn't use such tricks like: special parameters, "rule 50", null-move disabling, tablebases, Monte Carlo, "a.i. learning" etc.

Sting proves that an additional special code can help to solve many difficult for top engines positions.

Try "iq-test":

[pgn][Result "1"]
[FEN "7k/6rp/6pN/1r4P1/3B4/8/8/K7 b - - "]

1... Rxg5 {win}

[Result "2"]
[FEN "1B1k4/3p4/1Kp5/PpP2p2/1PqP1P2/8/1P6/8 w - - "]

1. a6 {win}

[Result "3"]
[FEN "3N2r1/2K1p3/4Pk2/8/Bp5b/8/2P5/8 b - - "]

1... Bg3+ 2. Kd7 Rxd8+ {win}

[Result "4"]
[FEN "8/7p/5P1k/1p5P/5p2/2p1p3/P1P1P1P1/1K3Nb1 w - - "]

1. Ng3 {win}

[Result "5"]
[FEN "6q1/PpB5/k7/P6K/6n1/1P4p1/5p2/1B3N1N w - - "]

1. a8Q+ {or 1. a8R+ win}

[Result "6"]
[FEN "6k1/6p1/4Rb1p/p7/rp2P1N1/2P3P1/1P5P/6K1 b - - "]

1... Bxc3 {win}

[Result "7"]
[FEN "8/8/p2k1p2/1p1p3p/1P1P3p/P3NPP1/5K2/1b6 w - - "]

1. Ng2 {win}

[Result "8"]
[FEN "2k5/p7/Pp1p1b2/1P1P1p2/2P2P1p/3K3P/5B2/8 w - - "]

1. c5 {win}

[Result "9"]
[FEN "1n6/Pp1p1p1p/1P1P1P1P/4K3/2p5/p7/rpp1P3/qkb1R3 w - - "]

1. axb8N {win}

[Result "10"]
[FEN "1N4K1/1pp1p3/7k/2r3pP/p2pp1P1/P6N/8/2B5 w - - "]

1. Nc6 {draw - no gain}

[Result "11"]
[FEN "5K2/k4p1p/5p1p/1p3p2/bP6/1p6/1P5p/7B w - - "]

1. Ke8 {or 1. Ke7 win}

[Result "12"]
[FEN "k1b5/1p1p1p1p/1PpPpP2/2B5/8/2p1p2P/2PbP3/3K4 w - - "]

1. Bd4 {win}

[Result "13"]
[FEN "8/8/8/8/1kB1q3/8/1PRb4/1K6 b - - "]

1... Qh1+ 2. Ka2 Qa8+ 3.Kb1 Qe4 {or other way to get the start position for white - win}

[Result "14"]
[FEN "8/2N4r/1p3pkp/8/5K1p/2P4N/P3Bn2/8 w - - "]

1. Bh5+ {win}

[Result "15"]
[FEN "4k1rr/1R1R3p/8/8/8/2K5/7P/8 w k - "]

1. Rd2 {win}

[Result "16"]
[FEN "5k2/4bp2/2B3p1/1P4p1/3R4/3P2PP/2r2PK1/8 b - - "]

1. Rxf2+ {draw - no gain}

[Result "17"]
[FEN "1b6/2p5/1kB5/1PN5/8/3K4/8/q7 w - - "]

1. Nb3 {draw - no gain}

[Result "18"]
[FEN "N7/8/2KQ2rp/6k1/3p3p/2p4P/4PP2/5N2 w - - "]

1. f4+ {draw - no gain}

[Result "19"]
[FEN "2b1r3/r2ppN2/8/1p1p1k2/pP1P4/2P3R1/PP3PP1/2K5 w - - "]

1. Nd6+ {draw - no gain}

[Result "20"]
[FEN "8/8/4B3/6p1/7k/8/4pPKP/8 w - - "]

1. Bg4 {draw - no gain}

[Result "21"]
[FEN "r7/7k/5R2/p3p3/Pp1pPp2/1PpP1Pp1/K1P3P1/8 w - - "]

1. Kb1 Kg7 2. Rh6 {or 1... Rh8 2. Rf8 draw - no gain}

[Result "22"]
[FEN "1K3kB1/8/6p1/7R/8/4b3/8/6n1 w - - "]

1. Rh8 Kg7 2. Bh7 {draw - no gain}

[Result "23"]
[FEN "8/8/R7/1b4k1/5p2/1B3r2/7P/7K w - - "]

1. h4+ Kxh4 2. Rh6+ Kg5 3. Rh5+ {draw - no gain}

[Result "24"]
[FEN "7Q/4p3/4p3/p1p1P3/Pp2P3/3Kp3/p1PbP3/kN6 w - - "]

1. Na3 bxa3 2. Qh1+ Kb2 3. Qa1+ {draw - no gain}

[Result "25"]
[FEN "7r/K7/5k1n/p3p3/Pp1pPp1p/1PpP1PpP/2P3P1/N1RR1B2 b - - "]

{win}

[Result "26"]
[FEN "q7/b1p5/kp1p4/p2PN3/PPP5/1K6/8/5B2 w - - "]

1. c5+ Kb7 2. Ba6+ {win - no draw}

[Result "27"]
[FEN "1k1n4/1p1b1p2/1Bp1pPp1/1PP1P3/8/6P1/8/1K6 w - - "]

1. Bc7+ Ka7 2. Bb8+ {win - no draw}

[Result "28"]
[FEN "4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - "]

1. Qxe5 {win}

[Result "29"]
[FEN "q1b4n/1p1pKp2/1p1p1Pp1/1P1P2Pp/2P4P/8/7R/1N1k4 w - - "]

1. Ra2 {win}

[Result "30"]
[FEN "3k4/2pq3p/pp5R/4P3/P6P/2PN4/1PN3K1/8 w - - "]

1. Nd4 {win}

[Result "31"]
[FEN "8/7p/6pP/p4pP1/3BpP2/p1KpP3/pn1N4/k7 w - - "]

1. Bh8 {win}

[Result "32"]
[FEN "8/6p1/p7/rp1K2p1/kb3pP1/2p2p1b/P1Np1P2/3N2R1 w - - "]

1. Ke6 {or 1. Ke4 win}

[Result "33"]
[FEN "B7/p1p5/k2p4/p3p3/P1Nb1p2/6p1/7p/4K3 w - - "]

{Ke1->h3->c8 win}

[Result "34"]
[FEN "1qN5/b1pB4/1pP2k2/pP3P2/P1P5/8/8/K7 w - - "]

{Ka1->h5->d8 win}

[Result "35"]
[FEN "8/3P3k/n2K3p/2p3n1/1b4N1/2p1p1P1/8/3B4 w - - "]

1. Nf6+ {win}

[Result "36"]
[FEN "8/5K2/3p3p/3p3P/pp1P4/rkb1R3/p1p3P1/n1B2B2 w - - "]

1. Rd3 {win}

[Result "37"]
[FEN "6bn/p4p1k/rp3Pp1/rp2BBP1/1p6/pK6/P2P4/8 w - - "]

1. Bc8 {win}

[Result "38"]
[FEN "qn6/b1Kp3p/p1pB3p/p7/P1NkP3/2pP4/2B5/8 w - - "]

1. Bf4 {or 1. Kc8 win}

[Result "39"]
[FEN "8/P7/4k3/8/5P2/4Bq2/5P2/5K2 b - - "]

1... Kf5 {win}

[Result "40"]
[FEN "8/6kP/1p6/p7/Pr6/K2B4/8/8 b - - "]

1... Rh4 {next Kg7->f6->e5 win}

[Result "41"]
[FEN "8/8/2b1N3/5p2/3B4/2K5/6kp/R7 w - - "]

1. Rh1 {win}

[Result "42"]
[FEN "8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - "]

1... Bh3 {win}

[Result "43"]
[FEN "5rk1/5ppp/p1Q1p3/1R6/q7/4b1P1/P2RPP1P/6K1 w - - "]

1. Rd8 {win}

[Result "44"]
[FEN "r7/1b1r4/k1p1p1p1/1p1pPpPp/p1PP1P1P/PP1K4/8/4Q3 w - - "]

1. Qa5+ {draw - no gain}

[Result "45"]
[FEN "3B4/1r2p3/r2p1p2/bkp1P1p1/1p1P1PPp/p1P4P/PPB1K3/8 w - - "]

1. Ba4+ {draw - no gain}

[Result "46"]
[FEN "2k5/2p5/1q1p4/pPpPp1pp/N1P1Pp2/P4PbP/KQ4P1/8 w - - "]

{avoid Nxb6+ win}

[Result "47"]
[FEN "1r6/4k3/r2p2p1/2pR1p1p/2P1pP1P/pPK1P1P1/P7/1B6 b - - "]

1... Rxb3+ {win}

[Result "48"]
[FEN "8/5k2/6p1/4BP1p/6p1/p1p3PP/6P1/1n2K2R b K - "]

1... a2 2. fxg6+ Kg8 {win}

[Result "49"]
[FEN "8/3k1b1r/2p1p1p1/rpPpPpPp/p2P1P1P/P2K4/8/4B3 w - - "]

1. Bb4 {draw - no gain}

[Result "50"]
[FEN "7b/p1p1p3/P1PpPp2/2nP1kpr/5P1p/p3KBPP/P7/8 w - - "]

1. Be4+ {draw - no gain}

[Result "51"]
[FEN "7r/p1p1p1pk/3pPp1p/2pP1PP1/P1P4P/1K6/P6B/8 w - - "]

1. g6+ Kg8 2. a5 a6 3. Bxd6 {or 2. Bxd6 cxd6 3. h5 draw - no gain}

[Result "52"]
[FEN "8/1p1q1k2/1Pp5/p1Pp4/P2Pp1p1/4PpPp/1N3P1P/3B2K1 w - - "]

1. Bb3 Qc8 2. Nd1 Qa8 3. Bc4 {draw - no gain}

[Result "53"]
[FEN "8/8/2pk4/8/p1p3B1/PpP5/1P6/r1NK4 w - - "]

1. Bf5 Ra2 2, Nxa2 bxa2 3. Kc1 a1Q+ 4. Bb1 {draw - no gain}

[Result "54"]
[FEN "1R3b2/5ppQ/6Pp/6PP/R6P/P7/7K/2q1k3 w - - "]

1. Rb1 Qxb1 2. gxf7 {win}

[Result "55"]
[FEN "Kn6/8/8/3R2PB/8/2p2NP1/1q6/2k5 w - - "]

1. Rd1+ {draw - no gain}

[Result "56"]
[FEN "1B3B1B/2B5/p6B/8/8/8/8/1k1K4 w - - "]

1. Bce5 {win}

[Result "57"]
[FEN "4kr2/5p1K/3p1Q2/1p4P1/4P3/1PP5/7b/8 w - - "]

1. Kh6 {win}

[Result "58"]
[FEN "6R1/8/2pB3k/2P4p/5p1q/5P2/4P1K1/8 w - - "]

1. Bf8+ {win}

[Result "59"]
[FEN "n2Bqk2/5p1p/Q4KP1/p7/8/8/8/8 w - - "]

1. Qc8 Kg8 2. Bc7 {win}

[Result "60"]
[FEN "8/5p2/8/8/p7/rpK4p/1p3ppr/bQ1N1bqk w - - "]

1. Kb4 {or 1. Kd4 win}

[Result "61"]
[FEN "8/8/7p/3KNN1k/2p4p/8/3P2p1/8 w - - "]

1. Kc6 {draw - no gain}

[Result "62"]
[FEN "1R6/pPk1r3/2p5/K7/8/2B1b3/8/8 w - - "]

1. Ka6 {draw - no gain}

[Result "63"]
[FEN "8/p7/qkpN1p2/8/1B1P4/PP3K2/5P2/8 w - - "]

1. Ba5+ {win}

[Result "64"]
[FEN "2N5/p7/P7/8/1KPp1p1p/3p1Bpp/3P2rq/R5bk w - - "]

1. Nb6 {win}

[Result "65"]
[FEN "5kN1/3p1q2/5P2/5PP1/2pK4/1p1R4/1P6/8 w - - "]

1. Rxb3 {win}

[Result "66"]
[FEN "2b1rk2/5p2/p1P5/2p2P2/2p5/7B/P7/2KR4 w - - "]

1. f6 {win}

[Result "67"]
[FEN "2r5/prkpR1p1/2p1ppK1/P1p1N1B1/P1P1P3/8/8/8 w - - "]

1. Bf4 {win}

[Result "68"]
[FEN "8/8/8/5Bp1/7k/7P/4pPK1/8 b - - "]

1... g4 (win);

[Result "69"]
[FEN "3k4/4pp2/n2n4/5BN1/3N4/b7/4K3/8 w - - "]

1. Nxf7+ {draw - no gain}

[Result "70"]
[FEN "8/1P6/8/1b1K4/6p1/5pP1/5P1B/7k w - - "]

1. b8R {win}

[Result "71"]
[FEN "8/5pKN/5Pp1/5kP1/8/Bb6/8/7q w - - "]

1. Bc5 {any move} Qxh7+ {Black wins}

[Result "72"]
[FEN "8/p5p1/1pP3p1/p5p1/k3p3/4p3/K7/8 w - - "]

1. c7 {win}

[Result "73"]
[FEN "q7/8/2p5/B2p2pp/5pp1/2N3k1/6P1/7K w - - "]

1. Ne4+ Kh4 2. Ng3 fxg3 3. Bb6 {draw - no gain}

[Result "74"]
[FEN "q7/7R/k7/1p6/1p6/1P2B3/7K/8 w - - "]

1. Bd4 {win}

[Result "75"]
[FEN "1q1r3k/3P1pp1/ppBR1n1p/4Q2P/P4P2/8/5PK1/8 w - - "]

1. Rxf6 {win}

[Result "76"]
[FEN "1r3q1k/2N2P1p/6pQ/4p3/7p/n6P/3B4/7K w - - "]

1. Qf4 {win}

[Result "77"]
[FEN "5nr1/2Pp2pk/3Pp1p1/4P1P1/6P1/5K2/8/7n w - - "]

1. c8N {win}

[Result "78"]
[FEN "2K3k1/1p6/R3p1p1/1rB1P1P1/8/8/1Pb5/8 w - - "]

1. Rc6 {draw - no gain}

[Result "79"]
[FEN "4q3/2r1r2p/3P3P/1p6/kP6/Pp6/1P6/KB2R3 w - - "]

1. Rxe7 Qxe7 2. dxc7 {draw - no gain}

[Result "80"]
[FEN "3k4/8/7p/2p1p1pP/1pPpPpP1/1P1P1P2/N7/2K5 w - - "]

{Na2->h4 win - gain}[/pgn]

[MikeGL]

download: http://www.mediafire.com/file/po3o2luce ... -sf-95.zip

Sting is based on Stockfish 2.1.1 and doesn't use such tricks like: special parameters, "rule 50", null-move disabling, tablebases, Monte Carlo, "a.i. learning" etc.

Sting proves that an additional special code can help to solve many difficult for top engines positions.

Try "iq-test":

[pgn][Result "1"]
[FEN "7k/6rp/6pN/1r4P1/3B4/8/8/K7 b - - "]

1... Rxg5 {win}

[Result "2"]
[FEN "1B1k4/3p4/1Kp5/PpP2p2/1PqP1P2/8/1P6/8 w - - "]

1. a6 {win}

[Result "3"]
[FEN "3N2r1/2K1p3/4Pk2/8/Bp5b/8/2P5/8 b - - "]

1... Bg3+ 2. Kd7 Rxd8+ {win}

[Result "4"]
[FEN "8/7p/5P1k/1p5P/5p2/2p1p3/P1P1P1P1/1K3Nb1 w - - "]

1. Ng3 {win}

[Result "5"]
[FEN "6q1/PpB5/k7/P6K/6n1/1P4p1/5p2/1B3N1N w - - "]

1. a8Q+ {or 1. a8R+ win}

[Result "6"]
[FEN "6k1/6p1/4Rb1p/p7/rp2P1N1/2P3P1/1P5P/6K1 b - - "]

1... Bxc3 {win}

[Result "7"]
[FEN "8/8/p2k1p2/1p1p3p/1P1P3p/P3NPP1/5K2/1b6 w - - "]

1. Ng2 {win}

[Result "8"]
[FEN "2k5/p7/Pp1p1b2/1P1P1p2/2P2P1p/3K3P/5B2/8 w - - "]

1. c5 {win}

[Result "9"]
[FEN "1n6/Pp1p1p1p/1P1P1P1P/4K3/2p5/p7/rpp1P3/qkb1R3 w - - "]

1. axb8N {win}

[Result "10"]
[FEN "1N4K1/1pp1p3/7k/2r3pP/p2pp1P1/P6N/8/2B5 w - - "]

1. Nc6 {draw - no gain}

[Result "11"]
[FEN "5K2/k4p1p/5p1p/1p3p2/bP6/1p6/1P5p/7B w - - "]

1. Ke8 {or 1. Ke7 win}

[Result "12"]
[FEN "k1b5/1p1p1p1p/1PpPpP2/2B5/8/2p1p2P/2PbP3/3K4 w - - "]

1. Bd4 {win}

[Result "13"]
[FEN "8/8/8/8/1kB1q3/8/1PRb4/1K6 b - - "]

1... Qh1+ 2. Ka2 Qa8+ 3.Kb1 Qe4 {or other way to get the start position for white - win}

[Result "14"]
[FEN "8/2N4r/1p3pkp/8/5K1p/2P4N/P3Bn2/8 w - - "]

1. Bh5+ {win}

[Result "15"]
[FEN "4k1rr/1R1R3p/8/8/8/2K5/7P/8 w k - "]

1. Rd2 {win}

[Result "16"]
[FEN "5k2/4bp2/2B3p1/1P4p1/3R4/3P2PP/2r2PK1/8 b - - "]

1. Rxf2+ {draw - no gain}

[Result "17"]
[FEN "1b6/2p5/1kB5/1PN5/8/3K4/8/q7 w - - "]

1. Nb3 {draw - no gain}

[Result "18"]
[FEN "N7/8/2KQ2rp/6k1/3p3p/2p4P/4PP2/5N2 w - - "]

1. f4+ {draw - no gain}

[Result "19"]
[FEN "2b1r3/r2ppN2/8/1p1p1k2/pP1P4/2P3R1/PP3PP1/2K5 w - - "]

1. Nd6+ {draw - no gain}

[Result "20"]
[FEN "8/8/4B3/6p1/7k/8/4pPKP/8 w - - "]

1. Bg4 {draw - no gain}

[Result "21"]
[FEN "r7/7k/5R2/p3p3/Pp1pPp2/1PpP1Pp1/K1P3P1/8 w - - "]

1. Kb1 Kg7 2. Rh6 {or 1... Rh8 2. Rf8 draw - no gain}

[Result "22"]
[FEN "1K3kB1/8/6p1/7R/8/4b3/8/6n1 w - - "]

1. Rh8 Kg7 2. Bh7 {draw - no gain}

[Result "23"]
[FEN "8/8/R7/1b4k1/5p2/1B3r2/7P/7K w - - "]

1. h4+ Kxh4 2. Rh6+ Kg5 3. Rh5+ {draw - no gain}

[Result "24"]
[FEN "7Q/4p3/4p3/p1p1P3/Pp2P3/3Kp3/p1PbP3/kN6 w - - "]

1. Na3 bxa3 2. Qh1+ Kb2 3. Qa1+ {draw - no gain}

[Result "25"]
[FEN "7r/K7/5k1n/p3p3/Pp1pPp1p/1PpP1PpP/2P3P1/N1RR1B2 b - - "]

{win}

[Result "26"]
[FEN "q7/b1p5/kp1p4/p2PN3/PPP5/1K6/8/5B2 w - - "]

1. c5+ Kb7 2. Ba6+ {win - no draw}

[Result "27"]
[FEN "1k1n4/1p1b1p2/1Bp1pPp1/1PP1P3/8/6P1/8/1K6 w - - "]

1. Bc7+ Ka7 2. Bb8+ {win - no draw}

[Result "28"]
[FEN "4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - "]

1. Qxe5 {win}

[Result "29"]
[FEN "q1b4n/1p1pKp2/1p1p1Pp1/1P1P2Pp/2P4P/8/7R/1N1k4 w - - "]

1. Ra2 {win}

[Result "30"]
[FEN "3k4/2pq3p/pp5R/4P3/P6P/2PN4/1PN3K1/8 w - - "]

1. Nd4 {win}

[Result "31"]
[FEN "8/7p/6pP/p4pP1/3BpP2/p1KpP3/pn1N4/k7 w - - "]

1. Bh8 {win}

[Result "32"]
[FEN "8/6p1/p7/rp1K2p1/kb3pP1/2p2p1b/P1Np1P2/3N2R1 w - - "]

1. Ke6 {or 1. Ke4 win}

[Result "33"]
[FEN "B7/p1p5/k2p4/p3p3/P1Nb1p2/6p1/7p/4K3 w - - "]

{Ke1->h3->c8 win}

[Result "34"]
[FEN "1qN5/b1pB4/1pP2k2/pP3P2/P1P5/8/8/K7 w - - "]

{Ka1->h5->d8 win}

[Result "35"]
[FEN "8/3P3k/n2K3p/2p3n1/1b4N1/2p1p1P1/8/3B4 w - - "]

1. Nf6+ {win}

[Result "36"]
[FEN "8/5K2/3p3p/3p3P/pp1P4/rkb1R3/p1p3P1/n1B2B2 w - - "]

1. Rd3 {win}

[Result "37"]
[FEN "6bn/p4p1k/rp3Pp1/rp2BBP1/1p6/pK6/P2P4/8 w - - "]

1. Bc8 {win}

[Result "38"]
[FEN "qn6/b1Kp3p/p1pB3p/p7/P1NkP3/2pP4/2B5/8 w - - "]

1. Bf4 {or 1. Kc8 win}

[Result "39"]
[FEN "8/P7/4k3/8/5P2/4Bq2/5P2/5K2 b - - "]

1... Kf5 {win}

[Result "40"]
[FEN "8/6kP/1p6/p7/Pr6/K2B4/8/8 b - - "]

1... Rh4 {next Kg7->f6->e5 win}

[Result "41"]
[FEN "8/8/2b1N3/5p2/3B4/2K5/6kp/R7 w - - "]

1. Rh1 {win}

[Result "42"]
[FEN "8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - "]

1... Bh3 {win}

[Result "43"]
[FEN "5rk1/5ppp/p1Q1p3/1R6/q7/4b1P1/P2RPP1P/6K1 w - - "]

1. Rd8 {win}

[Result "44"]
[FEN "r7/1b1r4/k1p1p1p1/1p1pPpPp/p1PP1P1P/PP1K4/8/4Q3 w - - "]

1. Qa5+ {draw - no gain}

[Result "45"]
[FEN "3B4/1r2p3/r2p1p2/bkp1P1p1/1p1P1PPp/p1P4P/PPB1K3/8 w - - "]

1. Ba4+ {draw - no gain}

[Result "46"]
[FEN "2k5/2p5/1q1p4/pPpPp1pp/N1P1Pp2/P4PbP/KQ4P1/8 w - - "]

{avoid Nxb6+ win}

[Result "47"]
[FEN "1r6/4k3/r2p2p1/2pR1p1p/2P1pP1P/pPK1P1P1/P7/1B6 b - - "]

1... Rxb3+ {win}

[Result "48"]
[FEN "8/5k2/6p1/4BP1p/6p1/p1p3PP/6P1/1n2K2R b K - "]

1... a2 2. fxg6+ Kg8 {win}

[Result "49"]
[FEN "8/3k1b1r/2p1p1p1/rpPpPpPp/p2P1P1P/P2K4/8/4B3 w - - "]

1. Bb4 {draw - no gain}

[Result "50"]
[FEN "7b/p1p1p3/P1PpPp2/2nP1kpr/5P1p/p3KBPP/P7/8 w - - "]

1. Be4+ {draw - no gain}

[Result "51"]
[FEN "7r/p1p1p1pk/3pPp1p/2pP1PP1/P1P4P/1K6/P6B/8 w - - "]

1. g6+ Kg8 2. a5 a6 3. Bxd6 {or 2. Bxd6 cxd6 3. h5 draw - no gain}

[Result "52"]
[FEN "8/1p1q1k2/1Pp5/p1Pp4/P2Pp1p1/4PpPp/1N3P1P/3B2K1 w - - "]

1. Bb3 Qc8 2. Nd1 Qa8 3. Bc4 {draw - no gain}

[Result "53"]
[FEN "8/8/2pk4/8/p1p3B1/PpP5/1P6/r1NK4 w - - "]

1. Bf5 Ra2 2, Nxa2 bxa2 3. Kc1 a1Q+ 4. Bb1 {draw - no gain}

[Result "54"]
[FEN "1R3b2/5ppQ/6Pp/6PP/R6P/P7/7K/2q1k3 w - - "]

1. Rb1 Qxb1 2. gxf7 {win}

[Result "55"]
[FEN "Kn6/8/8/3R2PB/8/2p2NP1/1q6/2k5 w - - "]

1. Rd1+ {draw - no gain}

[Result "56"]
[FEN "1B3B1B/2B5/p6B/8/8/8/8/1k1K4 w - - "]

1. Bce5 {win}

[Result "57"]
[FEN "4kr2/5p1K/3p1Q2/1p4P1/4P3/1PP5/7b/8 w - - "]

1. Kh6 {win}

[Result "58"]
[FEN "6R1/8/2pB3k/2P4p/5p1q/5P2/4P1K1/8 w - - "]

1. Bf8+ {win}

[Result "59"]
[FEN "n2Bqk2/5p1p/Q4KP1/p7/8/8/8/8 w - - "]

1. Qc8 Kg8 2. Bc7 {win}

[Result "60"]
[FEN "8/5p2/8/8/p7/rpK4p/1p3ppr/bQ1N1bqk w - - "]

1. Kb4 {or 1. Kd4 win}

[Result "61"]
[FEN "8/8/7p/3KNN1k/2p4p/8/3P2p1/8 w - - "]

1. Kc6 {draw - no gain}

[Result "62"]
[FEN "1R6/pPk1r3/2p5/K7/8/2B1b3/8/8 w - - "]

1. Ka6 {draw - no gain}

[Result "63"]
[FEN "8/p7/qkpN1p2/8/1B1P4/PP3K2/5P2/8 w - - "]

1. Ba5+ {win}

[Result "64"]
[FEN "2N5/p7/P7/8/1KPp1p1p/3p1Bpp/3P2rq/R5bk w - - "]

1. Nb6 {win}

[Result "65"]
[FEN "5kN1/3p1q2/5P2/5PP1/2pK4/1p1R4/1P6/8 w - - "]

1. Rxb3 {win}

[Result "66"]
[FEN "2b1rk2/5p2/p1P5/2p2P2/2p5/7B/P7/2KR4 w - - "]

1. f6 {win}

[Result "67"]
[FEN "2r5/prkpR1p1/2p1ppK1/P1p1N1B1/P1P1P3/8/8/8 w - - "]

1. Bf4 {win}

[Result "68"]
[FEN "8/8/8/5Bp1/7k/7P/4pPK1/8 b - - "]

1... g4 (win);

[Result "69"]
[FEN "3k4/4pp2/n2n4/5BN1/3N4/b7/4K3/8 w - - "]

1. Nxf7+ {draw - no gain}

[Result "70"]
[FEN "8/1P6/8/1b1K4/6p1/5pP1/5P1B/7k w - - "]

1. b8R {win}

[Result "71"]
[FEN "8/5pKN/5Pp1/5kP1/8/Bb6/8/7q w - - "]

1. Bc5 {any move} Qxh7+ {Black wins}

[Result "72"]
[FEN "8/p5p1/1pP3p1/p5p1/k3p3/4p3/K7/8 w - - "]

1. c7 {win}

[Result "73"]
[FEN "q7/8/2p5/B2p2pp/5pp1/2N3k1/6P1/7K w - - "]

1. Ne4+ Kh4 2. Ng3 fxg3 3. Bb6 {draw - no gain}

[Result "74"]
[FEN "q7/7R/k7/1p6/1p6/1P2B3/7K/8 w - - "]

1. Bd4 {win}

[Result "75"]
[FEN "1q1r3k/3P1pp1/ppBR1n1p/4Q2P/P4P2/8/5PK1/8 w - - "]

1. Rxf6 {win}

[Result "76"]
[FEN "1r3q1k/2N2P1p/6pQ/4p3/7p/n6P/3B4/7K w - - "]

1. Qf4 {win}

[Result "77"]
[FEN "5nr1/2Pp2pk/3Pp1p1/4P1P1/6P1/5K2/8/7n w - - "]

1. c8N {win}

[Result "78"]
[FEN "2K3k1/1p6/R3p1p1/1rB1P1P1/8/8/1Pb5/8 w - - "]

1. Rc6 {draw - no gain}

[Result "79"]
[FEN "4q3/2r1r2p/3P3P/1p6/kP6/Pp6/1P6/KB2R3 w - - "]

1. Rxe7 Qxe7 2. dxc7 {draw - no gain}

[Result "80"]
[FEN "3k4/8/7p/2p1p1pP/1pPpPpP1/1P1P1P2/N7/2K5 w - - "]

{Na2->h4 win - gain}[/pgn]

Thanks for this Sting update Marek.

[lech]

It is a very important update for Sting.
I think now Sting should be much better in solving and in playing too.

BTW
Don't wait for mystic Alpha Zero!
Religious believers of Alpha Zero can be much more annoying than soldiers of Stockfish.

[peter]

It is a very important update for Sting.
I think now Sting should be much better in solving and in playing too.

BTW
Don't wait for mystic Alpha Zero!
Religious believers of Alpha Zero can be much more annoying than soldiers of Stockfish.

Thanks for Sting 9.5 and a (to me) very nice A0- statement, Marek!

Happy New Year

[Vinvin]

Thanks for this Sting update Marek.

+1

[lech]

It is a very important update for Sting.
I think now Sting should be much better in solving and in playing too.

BTW
Don't wait for mystic Alpha Zero!
Religious believers of Alpha Zero can be much more annoying than soldiers of Stockfish.

Thanks for Sting 9.5 and a (to me) very nice A0- statement, Marek!

Happy New Year

Just a joke (of course regarding to A0)!

Happy New Year!!!