Hard position for SF

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Jarkko Pesonen

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Feb 21, 2021, 5:40:21 PMFeb 21
to FishCooking
Can anyone get this faster using 4 cores, 2GB hash AMD Ryzen 3700X
Takes quite long time find about 4h20min

FEN: 2rqr1k1/pp1bbp1p/2n1p1pB/2N1P3/1PQp4/P4N2/5PP1/3RR1K1 w - - 0 1

Stockfish_21022022_x64_avx2:
Found 145 tablebases
NNUE evaluation using nn-62ef826d1a6d.nnue enabled
 
 36/46+ 00:47 302 108k 6 354k +0,57 Qb3
 36/46- 00:58 369 401k 6 346k +0,41 Qb3 Na5
 36/54+ 01:01 387 370k 6 342k +0,53 Qb3
 36/54 01:01 389 453k 6 343k +0,51 Qb3 Na5 Qb1 Bc6 Rxd4 Bd5 Nh2 Nc6 Rd3 Qc7 Ng4 b6 Ne4 Bxe4 Rxe4 Red8 Rc4 b5 Rc1 Qb8 Rxd8+ Nxd8 Qb2 Rc4 Rxc4 bxc4 Qc3 Qb5 Ne3 Nc6 Qxc4 Qxc4 Nxc4 g5 Kf1 a6 f4 gxf4 Ke2 Nd4+ Kd3 f3 Kxd4 fxg2 Be3 Kg7 Bf2
 37/59- 01:10 447 467k 6 349k +0,43 Qb3 Na5
 37/59+ 01:23 533 574k 6 368k +0,51 Nxb7
 37/59+ 01:25 542 944k 6 371k +0,81 Nxb7
 37/59 01:26 553 394k 6 375k +0,89 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Qxd4 Nxd4 Nd5 Rd3 a4 Nc6 Rc7 Nxe7+ Rcxe7 Rd4 Rb7 Rxa4 Rxb5 Ra7 Rbb8 Ra1 Ra8 Rxa8 Rxa8 a4 f6 exf6 Kf7 Kf1 Kxf6 Bd2 Ke7 a5 Ra6 Ke2 Kd7 Kd3 Ra7 a6 Kc6 Kc4
 38/60- 01:45 676 168k 6 382k +0,81 Nxb7 Qc7
 38/60- 01:48 693 459k 6 368k +0,73 Nxb7 Qc7
 38/60+ 01:48 693 937k 6 368k +0,81 Nxb7
 38/60- 01:50 700 315k 6 366k +0,60 Nxb7 Qc7
 38/63 01:51 706 951k 6 366k +0,71 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Qxd4 Nxd4 Nd5 Rd3 a4 Nc6 Rc7 Nxe7+ Rcxe7 Rd4 Rb7 Rxa4 Rxb5 Ra7 Rbb8 Ra1 Ra8 Rxa8 Rxa8 a4 Ra5 Ra3 f6 exf6 Kf7 Bd2 Ra7 a5 Kxf6 Kf1 Ke5 Ke2 Kd4 a6 Kc5 Be3+ Nxe3 Kxe3 Kb6 Kd4 Rxa6 Rxa6+ Kxa6 Kc5 Ka5 g3 Ka4 Kd6 Kb3 Kxe6
 39/54- 01:52 715 835k 6 368k +0,62 Nxb7 Qc7
 39/57+ 01:52 719 496k 6 368k +0,71 Nxb7
 39/58+ 01:54 729 280k 6 370k +0,83 Nxb7
 39/61 01:56 743 886k 6 373k +0,66 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Qxd4 Nxd4 Nd5 Rd3 a4 Nc6 Rc7 Nxe7+ Nxe7 Rb1 Rb7 Rb2 Ra8 Rd6 Nf5 Ra6 Rab8 Bg5 Rxb5 Rxb5 Rxb5 g4 Nd4 Bf6 Rb8 Rxa4 Ne2+ Kf1 Nc3 Ra7 Nb5 Ra6 Nc7 Rd6 Nd5 a4 Nxf6 exf6 h5 a5 Rb1+ Ke2
 40/54+ 01:57 748 041k 6 374k +0,74 Nxb7
 40/64+ 01:58 757 026k 6 375k +0,82 Nxb7
 40/64- 02:03 785 606k 6 377k +0,58 Nxb7 Qc7
 40/64+ 02:05 797 847k 6 374k +0,76 Nxb7
 40/64 02:06 805 142k 6 376k +0,64 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Qxd4 Nxd4 Nd5 Rd3 a4 Nc6 Rc7 Nxe7+ Nxe7 Rb1 Nd5 Rd4 Rb8 Rb2 Nb6 g3 Rc5 Rb1 Rc7 Kg2 Rcc8 Rdd1 Rc3 Rd6 Rb3 Rbd1 Nd5 Rc1 R3xb5 Ra6 Ne7 Rxa4 Nf5 Bg5 h6 Bf6 g5 Rc7 R5b7 Rxb7 Rxb7 Ra8+ Kh7 a4 g4 Rh8+ Kg6
 41/59+ 02:10 829 698k 6 378k +0,72 Nxb7
 41/59 02:12 843 617k 6 383k +0,77 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Qxd4 Nxd4 Nd5 Rd3 a4 Nc6 Rc7 Nxe7+ Nxe7 Rb1 Nd5 Rb2 Rb8 Rd4 Nb6 Rbd2 Rcc8 g3 Nd5 Rxa4 Rxb5 Ra7 Rbb8 a4 Ra8 Rc2 Re8 Rxa8 Rxa8 a5 f6 exf6 Kf7 Bd2 Kxf6 Kf1 g5 Ke2 h5 Ra2 Ra6 Ra4 Kf5 Kd3
 42/65- 02:20 901 437k 6 401k +0,69 Nxb7 Qc7
 42/65+ 02:26 942 122k 6 416k +0,77 Nxb7
 42/65 02:35 999 600k 6 439k +0,82 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Qxd4 Nxd4 Nd5 Rd3 a4 Nc6 Rc7 Nxe7+ Nxe7 Rb1 Rb7 Rb2 Ra8 Rd6 Nf5 Ra6 Rab8 Bg5 Rxb5 Rxb5 Rxb5 g4 Nd4 Bf6 Rb8 Rxa4 Ne2+ Kf1 Nc3 Ra7 Nb5 Ra5 h5 a4 Nd4 g5 h4 Kg2 Nc2 Ra6 Ne1+ Kh3 Nd3 Kxh4 Nxf2
 43/59- 02:41 1 042 521k 6 460k +0,74 Nxb7 Qc7
 43/59+ 02:43 1 054 852k 6 467k +0,82 Nxb7
 43/59- 02:50 1 104 243k 6 483k +0,66 Nxb7 Qc7
 43/59+ 02:50 1 107 952k 6 483k +0,80 Nxb7
 43/63 03:01 1 181 857k 6 507k +0,89 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Qxd4 Nxd4 Nd5 Rd3 a4 Nc6 Rc7 Nxe7+ Nxe7 Rb1 Rb7 Rb2 Ra8 Rd6 Nf5 Ra6 Rab8 Bg5 Rxb5 Rxb5 Rxb5 Ra8+ Kg7 Bf6+ Kh6 Rxa4 Rb1+ Kh2 Rd1 g4 Nd4 Ra7 Nf3+ Kg2 Ne1+ Kf1 Ra1 Ke2 Ng2 Kf3 Ne1+ Kf4 Ra2 Rxf7 Nd3+ Kg3 g5 Be7 Nxe5 Rf6+ Kg7 Rxe6
 44/64- 03:07 1 221 650k 6 517k +0,81 Nxb7 Qc7
 44/64- 03:12 1 252 863k 6 523k +0,73 Nxb7 Qc7
 44/64- 04:42 1 861 237k 6 582k +0,42 Nxb7 Qc7
 44/64+ 04:45 1 877 466k 6 584k +0,56 Nxb7
 44/69+ 04:53 1 935 040k 6 592k +0,89 Nxb7
 44/69 04:58 1 971 375k 6 597k +0,69 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qg4 Rb2 Nc4 Rb4 Qe2 Qe7 g3 Rxa4 Nd6 Rb8 Rd3 f6 Rc1 Bxe5 Nc4 Rb4 Nxe5 fxe5 Qxe5 Re8 Rc6 Rb1+ Kh2 Rxb5 Rf3 Rb6 Rc5 Qd7 Rxa5 Rd6 Qa1 Qe7 Ra7 Rd7 Rxd7 Qxd7 Ra3 e5 Qa2 Qf7 Ra7 Qf3 Rc7 Kh8
 45/42+ 05:14 2 075 308k 6 607k +0,77 Nxb7
 45/42+ 05:17 2 094 922k 6 608k +0,86 Nxb7
 45/66 05:30 2 189 165k 6 616k +0,79 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qg4 Qc7 Nc4 Bxe5 Nxe5 Qxe5 Rfe1 Qf6 Rd2 Rxd2 Bxd2 Qb2 Bh6 Qb4 Qxb4 axb4 a5 Rb8 b6 Nxb6 axb6 Rxb6 Be3 Rb5 Kf1 g5 Ke2 h5 Kd3 Rd5+ Ke4 Kg7 Rb1 Rb5 Kd3 Kg6 Kc4 Rd5
 46/64- 06:12 2 471 598k 6 642k +0,71 Nxb7 Qc7
 46/64- 06:43 2 686 058k 6 658k +0,63 Nxb7 Qc7
 46/64 07:23 2 961 038k 6 672k +0,53 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qe4 Ra2 Nf3 Bb4 Nh2 Rxa4 Qh4 Qxb5 Rxd5 exd5 Ng4 Bc5 Nf6+ Kh8 g4 Re6 Bf4 Rxf6 Qxf6+ Kg8 e6 Rxf4 exf7+ Kf8 Qxf4 Qb4 Qg5 Qe4 Rc1 Be7 Qh6+ Kxf7 Qxh7+ Kf6 Qh4+ Ke6 Qh3 a4 Rc7 a3 Ra7 Qe1+ Kg2 Qe4+ Qf3
 47/80+ 10:10 4 102 724k 6 716k +0,61 Qb3
 47/80- 10:42 4 311 729k 6 706k +0,45 Qb3 Na5
 47/90+ 10:51 4 372 587k 6 707k +0,57 Qb3
 47/90 10:56 4 402 725k 6 708k +0,59 Qb3 Na5 Qb1 Bc6 Rxd4 Bd5 Nh2 Nc6 Rd3 Qc7 Ng4 b6 Ne4 Bxe4 Rxe4 Red8 b5 Nb8 Rf3 g5 Nf6+ Bxf6 exf6 Nd7 Rg3 Nf8 Bxf8 Kxf8 Rxg5 Qc3 Reg4 Qxf6 Qb4+ Ke8 Rg8+ Kd7 Rd4+ Kc7 Rgxd8 Rxd8 Qc3+ Kb8 Qg3+ Kb7 Rxd8 Qxd8 Qf3+ Kc7 Qf4+ Kd7 Qxf7+ Qe7 Qf3 Qd6 g3 Ke7 Kg2 Qd5 Qxd5 exd5 f4 Kd6 g4 d4
 48/75+ 11:16 4 542 160k 6 712k +0,67 Qb3
 48/75+ 11:32 4 647 442k 6 714k +0,75 Qb3
 48/75- 12:27 5 021 916k 6 719k +0,50 Qb3 Na5
 48/89 14:17 5 780 612k 6 740k +0,55 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qg4 Qc7 Nc4 Bxe5 Nxe5 Qxe5 Rfe1 Qf6 Rd2 Rxd2 Bxd2 Qb2 Bh6 Qb4 Qxb4 axb4 a5 Rb8 b6 Nxb6 axb6 Rxb6 Be3 Rb8 Bd4 g5 Rc1 h6 Rc7 b3 Bb2 h5 Kf1 f6 Ke2 e5 Kd3 Rd8+ Ke3 Rd1 Rb7
 49/63+ 14:34 5 894 971k 6 744k +0,63 Nxb7
 49/71 14:35 5 903 638k 6 744k +0,57 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qg4 Qc7 Nc4 Bxe5 Nxe5 Qxe5 Rfe1 Qf6 Rd2 Rxd2 Bxd2 Qb2 Bh6 Qb4 Qxb4 axb4 a5 Rb8 b6 Nxb6 axb6 Rxb6 Be3 Rb8 Bd4 g5 Rc1 h6 Rc7 b3 Bb2 h5 Kf1 f6 Ke2 e5 Ke3 Ra8 Rb7 Ra2 Bc3 Ra3 Ke2 Ra2+ Kf1 Rc2 Rxb3 Kf7 Be1 Rc1 Ke2 Kg6
 50/75- 15:35 6 300 224k 6 737k +0,49 Nxb7 Qc7
 50/75- 17:05 6 921 790k 6 752k +0,40 Nxb7 Qc7
 50/75+ 17:08 6 943 250k 6 752k +0,49 Nxb7
 50/75 17:14 6 988 768k 6 755k +0,47 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Rd2 Rec8 Rxc2 Rxc2 Nd2 Bf8 Bxf8 Kxf8 Ne4 Qc7 g3 h5 Nf6 Qc3 Rd1 Qxd4 Rxd4 Ke7 Nxd5+ exd5 Rxd5 Rb2 f4 Ke6 Rd6+ Kf5 Rd7 Kg4 f5 Kxf5 Rxf7+ Kxe5 Ra7 Kf5 Rxa5 Kg4 Ra6 Kxg3 Rxg6+ Kf3 Ra6
 51/69 18:38 7 568 349k 6 769k +0,42 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qg4 Qc7 Nc4 Bxe5 Nxe5 Qxe5 Rfe1 Qf6 Rd2 Rxd2 Bxd2 Qb2 Bh6 Qb4 Qxb4 axb4 a5 Rb8 b6 Nxb6 axb6 Rxb6 Be3 Rb8 Bc1 b3 Bb2 h6 Re3 Kh7 Rf3 Rb7 Kf1 g5 Ke2 h5 Ke3 Rd7 g3 Rb7 Rf6 Rc7 Be5
 52/73+ 20:02 8 149 628k 6 775k +0,50 Nxb7
 52/73+ 20:07 8 178 172k 6 775k +0,59 Nxb7
 52/73+ 20:30 8 342 403k 6 777k +0,71 Nxb7
 52/74 20:39 8 403 380k 6 779k +0,47 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qg4 Qc7 Nc4 Bxe5 Nxe5 Qxe5 Rc1 Re2 Rc4 Re1 Qd4 Qxd4 Rxd4 Rxf1+ Kxf1 Ra8 Rh4 e5 Ke2 f6 Be3 h5 Rc4 Kf7 Bd2 Ke7 Kf3 Ra7 Be3 Nxe3 fxe3 Rd7 Rc6 Rd2 Ra6 h4 Rxa5 e4+ Kxe4 Rxg2 Kd4
 53/66+ 20:47 8 461 838k 6 781k +0,55 Nxb7
 53/66+ 20:52 8 496 877k 6 782k +0,63 Nxb7
 53/73- 21:21 8 694 185k 6 784k +0,39 Nxb7 Qc7
 53/76 25:48 10 514 237k 6 788k +0,51 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qg4 Qc7 Nc4 Bxe5 Nxe5 Qxe5 Rfe1 Qf6 Rd2 Rxd2 Bxd2 Qb2 Bh6 Qb4 Qxb4 axb4 a5 Rb8 b6 Nxb6 axb6 Rxb6 Be3 Rb8 Bd4 g5 Bb2 Rb5 Kf1 h5 Re3 b3 Rf3 g4 Rf4 Rb7 Rc4 Kh7 g3 Kh6 Ke2 e5 Rc8 f6 Kd3 Kg6 Kc3
 54/77- 32:42 12 912 418k 6 580k +0,43 Nxb7 Qc7
 54/77+ 33:15 13 113 468k 6 572k +0,51 Nxb7
 54/77+ 33:27 13 183 804k 6 566k +0,63 Nxb7
 54/82 33:31 13 206 635k 6 565k +0,62 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qe4 Ra2 Nf3 Bb4 Qh4 Rxa4 Nh2 Qxb5 Rxd5 exd5 Ng4 Bc5 Nf6+ Kh8 g4 Re6 Bf4 Rxf6 Qxf6+ Kg8 e6 Rxf4 exf7+ Kf8 Qxf4 Qb4 Qf3 a4 Rd1 Qe4 Kg2 Qxf3+ Kxf3 d4 Rc1 Be7 Rc4 a3 Rxd4 Kxf7 Ra4 Ke6 Ke4 h5 Ra6+ Bd6 f3 Ke7 gxh5 gxh5 Kf5 Bb4 Ra4 Bc5
 55/24- 34:14 13 444 760k 6 545k +0,54 Nxb7 Qc7
 55/70 35:28 13 868 293k 6 517k +0,50 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qe4 Ra2 Nf3 Bb4 Qh4 Rxa4 Nh2 Qxb5 Rxd5 exd5 Ng4 Bc5 Nf6+ Kh8 g4 Re6 Bf4 Rxf6 Qxf6+ Kg8 e6 Rxf4 exf7+ Kf8 Qxf4 Qb4 Qf3 a4 Rd1 Qe4 Kg2 Qxf3+ Kxf3 d4 Rc1 Be7 Rc4 a3 Rxd4 Kxf7 Ra4 Ke6 Ke4 h5 Ra6+ Bd6 gxh5 gxh5 f4 h4 f5+ Ke7 f6+ Kxf6 Rxd6+ Kg5
 56/52- 40:26 15 591 576k 6 424k +0,42 Nxb7 Qc7
 56/52+ 40:45 15 719 957k 6 427k +0,50 Nxb7
 56/69 42:42 16 357 435k 6 383k +0,46 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qg4 Qc7 Nc4 Bxe5 Nxe5 Qxe5 Rfe1 Qf6 Rd2 Rxd2 Bxd2 Qb2 Bh6 Qb4 Qxb4 axb4 Ra1 Rb8 Kf1 b3 Bc1 f6 Ke2 e5 Bd2 Nb6 a5 Na8 b6 Nxb6 axb6 Rxb6 Kd3 h5 Kc4 Kf7 Bb4 g5 Kxb3 Rc6 Bc3 Kg6 Ra7 Rd6 Kc2 Rc6 Kd3 h4 Ra8 Kf5
 57/75 50:02 19 133 452k 6 373k +0,46 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qg4 Qc7 Nc4 Bxe5 Nxe5 Qxe5 Rfe1 Qf6 Rd2 Rxd2 Bxd2 Qb2 Bh6 Qb4 Qxb4 axb4 Ra1 Rb8 Kf1 f6 Bc1 b3 Ke2 e5 Bd2 Nb6 a5 Nc4 b6 Nxb6 axb6 Rxb6 Kd3 Kf7 Kc4 h5 Bb4 Ra6 Rb1 g5 Kxb3 Kg6 Bc5 h4 Be3 Kf7 Rh1 Ra8 Rc1 Kg6 Rc6 Kf5 Kc3 Kg6 Kd3
 58/75- 1:14:30 27 867 566k 6 234k +0,38 Nxb7 Qc7
 58/84 1:38:24 37 053 757k 6 276k +0,36 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qg4 Qc7 Nc4 Bxe5 Nxe5 Qxe5 Rfe1 Qf6 Rd2 Rxd2 Bxd2 Qb2 Bh6 Qb4 Qxb4 axb4 Ra1 Rb8 Kf1 f6 Bd2 b3 Ke2 Nb6 a5 Nd5 b6 Nxb6 axb6 Rxb6 Kd3 h5 Kc4 g5 Bb4 Ra6 Ba3 Kf7 Kxb3 Kg6 Rc1 h4 Bc5 Ra5 Be3 e5 Kc4 Ra4+ Kd5 Rg4 Rg1 Kf5 g3 hxg3 fxg3 Kg6 Bc5 Ra4 Rh1 Kf5 Re1 Kg4 Rf1 Ra2 Rxf6
 59/83+ 1:39:01 37 317 291k 6 281k +0,44 Nxb7
 59/83+ 1:39:05 37 344 657k 6 281k +0,52 Nxb7
 59/83 1:44:42 39 702 507k 6 320k +0,44 Qb3 Na5 Qb1 Bc6 Rxd4 Bd5 Nh2 Nc6 Rd3 Qc7 Ng4 b6 Ne4 Bxe4 Rxe4 Red8 b5 Nb8 Rf3 g5 Nf6+ Bxf6 exf6 Nd7 Rg3 Nf8 Bxf8 Kxf8 Rxg5 Qc3 Reg4 Qxf6 Qb4+ Ke8 Rg8+ Kd7 Rd4+ Kc7 Rgxd8 Rxd8 Qc3+ Kb8 Qg3+ Kb7 Rxd8 Qxd8 Qf3+ Kc7 Qxf7+ Qd7 Qf4+ Qd6 Qf3 Kd7 Qb7+ Qc7 Qxc7+ Kxc7 f4 Kd6 Kf2 Kc5 a4 Kd4 g4 Ke4 Kg3 h6 g5 hxg5 fxg5 Kf5 Kh4 Kg6 Kg4 e5
 60/83- 1:55:34 44 218 208k 6 377k +0,36 Qb3 Na5
 60/83+ 2:13:10 51 631 593k 6 461k +0,44 Qb3
 60/95 2:23:34 56 006 172k 6 501k +0,40 Qb3 Na5 Qb1 Bc6 Rxd4 Bd5 Nh2 Nc6 Rd3 Qc7 Ng4 b6 Ne4 Bxe4 Rxe4 Red8 b5 Nb8 Rf3 g5 Nf6+ Bxf6 exf6 Nd7 Rg3 Nf8 Bxf8 Kxf8 Rxg5 Qc3 Reg4 Qxf6 Qb4+ Ke8 Rg8+ Kd7 Rd4+ Kc7 Rgxd8 Rxd8 Qc3+ Kb8 Qg3+ Kb7 Rxd8 Qxd8 Qf3+ Kc7 Qxf7+ Qd7 Qf4+ Qd6 Qa4 Kd8 g4 Qe5 Qxa7 Qe1+ Kg2 Qe4+ Kg3 Qe5+ Kf3 Qxb5 Qf7 Qd3+ Kg2 Qe4+ Kg3 Qd3+ Qf3 Qb1 Qf6+ Kd7 Qf7+ Kd6 Qf4+ Kd7 a4 Ke7 Qd4 Kf7 g5 Qg1+ Kf4 Qh2+ Kf3 Qh3+ Kf4
 61/88+ 2:38:00 62 055 173k 6 546k +0,48 Qb3
 61/88+ 2:54:05 68 759 546k 6 583k +0,56 Qb3
 61/88 3:07:30 74 370 060k 6 611k +0,36 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qg4 Qc7 Nc4 Bxe5 Nxe5 Qxe5 Rfe1 Qf6 Rd2 Rxd2 Bxd2 Qb2 Bh6 Qb4 Qxb4 axb4 a5 Rb8 b6 Nxb6 axb6 Rxb6 Ra1 f6 Ra8+ Kf7 Ra7+ Ke8 Bc1 h5 Rg7 g5 g3 b3 Bb2 Rb4 Rg6 Rc4 Rg8+ Kf7 Rb8 e5 Rb7+ Kg6 Rb6 Kf7 Rxb3 h4 gxh4 Rxh4 Bc3 Rc4 Bd2 Kg6 Be3 Rc2 Rb5 Rc4 Ra5 Kf7 Ra7+ Kg6 Ra1 Rh4
 62/88+ 3:08:15 74 687 265k 6 612k +0,44 Nxb7
 62/88+ 3:08:26 74 762 593k 6 612k +0,52 Nxb7
 62/88+ 3:21:21 80 237 615k 6 641k +0,64 Ne4
 62/88+ 4:06:50 99 474 939k 6 717k +1,83 Ne4
 62/88 4:12:40 101 992 271k 6 727k +1,39 Ne4 a5 b5 Nb4 Qxd4 Nc2 Qxd7 Nxe1 Nxe1 Rc7 Qxd8 Rxd8 Rxd8+ Bxd8 Bd2 a4 Bb4 Rc1 Kf1 h5 Ke2 g5 Nd3 Rc2+ Ke3 h4 Ndc5 Be7 b6 Rc1 Nd3 Bxb4 Nxc1 Bxa3 Kd2 Be7 f3 Kg7 Kc3 Bd8 Nd3 Kg6 Kb4 Bxb6 Kxa4 Bd4 Kb3 Be3 Kc3 Kf5 Nd6+ Kg6 Kc4 g4 fxg4 Kg5 Nxf7+ Kxg4 Nd8 b6 Ne1 Kf4 Nf3 Kf5 Nxh4+ Kxe5
 63/83- 4:21:36 105 769 086k 6 739k +1,31 Ne4 a5
 63/83+ 4:27:49 108 443 862k 6 749k +1,39 Ne4
 63/83- 4:37:33 112 590 007k 6 761k +1,23 Ne4 a5
 63/92+ 4:48:01 117 209 533k 6 782k +1,37 Ne4
 63/92- 5:53:46 145 096 746k 6 836k +1,05 Ne4 a5
 63/92+ 5:53:55 145 163 372k 6 836k +1,33 Ne4

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Bryan

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Feb 22, 2021, 12:52:23 AMFeb 22
to FishCooking
Interesting position. SF doesn't readily see the mate threat after the queen sacrifice which allows the knight outpost on f6. So SF mistakenly thinks 1.Ne4 Nxb4 2.Qxb4 Bxb4 3.axb4 Rc8-c4 4. Ne4xf6+ Kg8-h8 5. Nf3-g5 Re8-e7 will be followed by 6.Re1-e4. But that would be a draw. White has a much better move there: 6.Rd1-d3.

SF struggles to find 6.Rd1-d3 because SF initially thinks black has two good replies to 6.Rd1-d3: either 6...Bd7-e8 or 6...Qd8-b6. SF initially thinks that if black plays 6...Bd7-e8, white's best reply is 7.Rd3-h3. But white has a much move here: 7.Ng5xh7, which opens the h-file and is probably a tablebase win for white (already at +22.18 at d=37). And SF struggles to see 7.Ng5xh7 because SF thinks after 7.Ng5xh7 Rc4-c3, white will play 8.Re1-d1, doubling rooks. But white's crushing move here is 8.Re1-e4, sacrificing the rook on d3, for the possibility of Re4-h4, while simultaneously double-attacking the pawn on d4, threatening Rd3xd4 with an attack on the black queen, and retaining protection of the pawn on e5.

Why does SF initially think 6...Qd8-b6 is a good reply to 6.Rd1-d3? Because it thinks after 7.Rd3-h3 Qb6xb4, white's best reply is 8.Re1-a1. But white has a much better move: 8.Re1-f1. And SF initially misses 8.Re1-f1 because it mistakenly thinks that after 8.Re1-f1 Rc4-c3 9.Rh3-h4 black maintains equality with 9...Bd7-b5 because it thinks white's best reply is 10.Ng5-e4. But here again, white has the crushing move: 10.Ng5xh7. Here, if black replies by capturing the rook with 10...Bb5xf1, white replies with 11.Nh7-f8 and white has M12.
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Jarkko Pesonen

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Feb 22, 2021, 1:28:05 PMFeb 22
to FishCooking
Could it be that move 11. Nf8 is not considered good for a long time because white is behind in material about 11 pawns and move is non-checking.

Glarean Magazin

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Feb 26, 2021, 7:43:18 AMFeb 26
to FishCooking
This puzzle is from my collection "The Engine Crackers" (June 2020):
https://glarean-magazin.ch/2020/06/12/computerschach-the-engine-crackers-knacknuesse-fuer-schach-programme-hard-chess-puzzles/
(LeelaChess vs Stockfish)

Try LeelaChess for a quick solution... ;-)

Greetings: Walter Eigenmann ( www.glarean-magazin.ch )

Jarkko Pesonen

unread,
Mar 18, 2021, 1:16:43 PMMar 18
to FishCooking
New SF made enormous leap forward in this position. Beats Lc0 easily and evaluation is from another planet compared to it.

FEN: 4kb1r/1bqr1p2/p1nppnp1/7p/1p1NPP1P/P1N1B1R1/1PP1BQP1/1K1R4 w k - 0 18

Stockfish_21031710_x64_avx2:
Found 145 tablebases
NNUE evaluation using nn-62ef826d1a6d.nnue enabled

 32/55 00:28 196 103k 6 952k +1,22 axb4 Nxb4 Bf3 Be7 Nxe6 fxe6 Bb6 Qc8 Rxg6 d5 e5 Ne4 Qd4 Qc4 Qxc4 dxc4 Rxd7 Nxc3+ bxc3 Kxd7 Bxb7 Rb8 Bf3 Rxb6 cxb4 Rxb4+ Kc1 c3 g3 Ra4 Kd1 Rd4+ Ke1 a5 Bxh5 Rd2 Bg4 Rxc2 Bxe6+ Kc7 f5
 33/47- 00:30 211 961k 6 952k +1,13 axb4 Nxb4
 33/50- 00:31 220 980k 6 955k +1,05 axb4 Nxb4
 33/53- 00:38 265 676k 6 975k +0,75 axb4 Nxb4
 33/53+ 00:38 267 981k 6 975k +0,89 axb4
 33/73 00:42 296 260k 6 996k +0,98 axb4 Nxb4 Bf3 Be7 f5 gxf5 exf5 Bxf3 Rxf3 e5 Bg5 exd4 Re1 Kf8 Rxe7 Rxe7 Bxf6 dxc3 Rxc3 Qa5 Rc8+ Re8 Rxe8+ Kxe8 Bxh8 Qa2+ Kc1 Qc4 Kd1 Kd7 b3 Qd5+ Kc1 Qc5 Qxc5 dxc5 Kd2 Nd5 Kd3 Nf4+ Ke4 Nxg2 Bf6 c4 b4 Kc6 c3 Kb5 Kd4 Ne1 Kd5 Ng2 Be5 Nxh4
 34/74- 00:44 309 136k 7 002k +0,89 axb4 Nxb4
 34/74+ 00:44 311 936k 7 006k +0,98 axb4
 34/74- 00:45 316 715k 7 005k +0,81 axb4 Nxb4
 34/74+ 00:47 332 415k 7 001k +0,96 axb4
 34/74 00:48 341 019k 6 996k +0,88 axb4 Nxb4 Bf3 Be7 Nb3 d5 e5 Ne4 Bxe4 dxe4 Rxd7 Qxd7 Nc5 Qc7 Nxb7 Qxb7 Bc5 e3 Qxe3 0-0 Bd6 Rd8 Qe4 Qb6 Qxb4 Rxd6 Qxb6 Rxb6 Ne4 Rb4 Re3 Bxh4 c3 Rc4 b3 Rc7 g3 Be7 Rd3 Kf8 Kc2 a5 c4
 35/58+ 00:52 366 715k 7 001k +0,96 Nxe6
 35/58+ 00:53 375 092k 7 003k +1,04 Nxe6
 35/58+ 00:57 400 025k 7 004k +1,92 Nxe6
 35/58 00:58 409 832k 6 999k +1,97 Nxe6 fxe6 Rxg6 bxc3 Rxf6 Nd8 f5 e5 Rd3 Bxe4 Rxc3 Qb7 Re6+ Be7 Qg3 Nxe6 fxe6 Rc7 Qg7 Rxc3 Qxh8+ Bf8 Bxh5+ Ke7 Bg5+ Kxe6 Qg8+ Kd7 Qf7+ Kc6 Qxb7+ Kxb7 bxc3 Bxg2 Kb2 d5 Bg6 Kc6 h5
 36/46+ 01:00 423 842k 6 999k +2,05 Nxe6
 36/46- 01:05 456 572k 6 999k +1,89 Nxe6 fxe6
 36/55+ 01:08 476 184k 6 993k +2,01 Nxe6
 36/55- 01:14 517 606k 6 993k +1,76 Nxe6 fxe6
 36/55+ 01:19 556 746k 6 994k +1,98 Nxe6
 36/55+ 01:24 590 271k 6 985k +2,30 Nxe6
 36/59 01:33 652 033k 6 981k +2,02 Nxe6 fxe6 Rxg6 bxc3 Rxf6 Nd8 f5 e5 Rd3 Bxe4 Rxc3 Qb8 Bxa6 Be7 Rg6 Rb7 Bxb7 Qxb7 Bg5 Rf8 f6 Ne6 Rh6 Bd8 Qe2 Nd4 Qxh5+ Qf7 Qxf7+ Rxf7 g4 Kd7 b4 Nb5 Rg3 Nd4 Kb2 Nxc2 Rc3 Ne1 a4 Nd3+ Kb3 Bd5+ Ka3 e4 Rg6 Ne5 Rg7
 37/31+ 01:34 658 635k 6 979k +2,11 Nxe6
 37/46+ 01:38 688 567k 6 976k +2,19 Nxe6
 37/56- 01:44 731 901k 6 980k +1,94 Nxe6 fxe6
 37/56+ 01:47 748 609k 6 982k +2,12 Nxe6
 37/56- 01:51 778 035k 6 983k +1,76 Nxe6 fxe6
 37/56+ 01:52 783 828k 6 984k +2,07 Nxe6
 37/60 01:53 789 647k 6 988k +1,88 Nxe6 fxe6 Rxg6 Rf7 axb4 Qc8 b5 Ne7 Rxf6 Rxf6 f5 Bg7 Bg5 0-0 Bxf6 Bxf6 Rxd6 Be5 Qb6 exf5 bxa6 Bxd6 Qxd6 Bxa6 Bxa6 Qc6 Qg3+ Qg6 Bc4+ Kh7 Qf2 Qf6 Nd5 Nxd5 exd5 Qe7 b3 f4 Bd3+ Kg8 Qe2 Qxe2 Bxe2 Rf5 Bf3 Kf7 b4 Re5 c4 Re3
 38/56+ 02:06 885 166k 6 996k +1,96 Nxe6
 38/56+ 02:08 901 613k 6 993k +2,04 Nxe6
 38/57+ 02:13 935 329k 6 993k +2,35 Nxe6
 38/57 02:14 938 838k 6 993k +2,11 Nxe6 fxe6 Rxg6 Rf7 axb4 Qc8 b5 Ne7 Rxf6 Rxf6 f5 Bg7 Bg5 0-0 Bxf6 Bxf6 Rxd6 Be5 Rb6 exf5 bxa6 Ba8 Qe3 f4 Qd3 Qc7 Qb5 Rb8 Rxb8+ Qxb8 Bxh5 Kg7 Qxb8 Bxb8 Bf3 Ng6 Nd5 Nxh4 b4 Nxf3 gxf3 Kg6 c4 Kh5 b5 Kh4 Kc2 Kg3
 39/45+ 02:16 951 237k 6 991k +2,19 Nxe6
 39/55+ 02:24 1 011 529k 6 993k +2,27 Nxe6
 39/59 02:32 1 067 151k 7 000k +2,29 Nxe6 fxe6 Rxg6 Rf7 axb4 Ne7 Rxf6 Rxf6 b5 Qc8 f5 Bg7 Bg5 0-0 Bxf6 Bxf6 Rxd6 Be5 Rb6 exf5 bxa6 Ba8 Qe3 f4 Qd3 Qc7 Qb5 Rc8 Qb3+ Kg7 Bxh5 Bc6 Qf7+ Kh8 Rb3 Ra8 Be2 Qd6 Bd3 Qf6 Qh5+ Kg8 Bc4+ Kg7 Nd5 Nxd5 exd5 Be8 Rb7+ Kf8
 40/53+ 02:43 1 143 019k 7 006k +2,37 Nxe6
 40/59- 02:50 1 192 273k 7 005k +2,21 Nxe6 fxe6
 40/59+ 02:54 1 223 368k 7 006k +2,33 Nxe6
 40/59+ 03:09 1 329 019k 7 015k +2,50 Nxe6
 40/65- 03:26 1 448 054k 7 028k +2,08 Nxe6 fxe6
 40/70+ 03:32 1 494 771k 7 035k +2,41 Nxe6
 40/70 03:49 1 620 427k 7 047k +2,69 Nxe6 fxe6 Rxg6 bxc3 Rxf6 Nd8 f5 e5 Rd3 Bxe4 Rxc3 Qb8 Bxa6 Be7 Rg6 Rc7 Bb5+ Kf7 Bd3 Bxd3 Rxd3 Qb5 Rb3 Qd5 Qg3 Ke8 Rg7 Bxh4 Qg6+ Rf7 Rb8 Qc4 Rb4 Qf1+ Ka2 Qxf5 Rxh4 Qxg6 Rxg6 Kd7 Rb4 Rff8 Rb6 Ne6 Rb7+ Kc6 Re7 Nf4 Bxf4 exf4 Ree6 Kd5 Rxd6+ Ke4 a4 Rhg8 b4 Rxg6 Rxg6 Kf5 Rh6 Kg5 Rh7 Kg6
 41/70- 03:53 1 644 266k 7 048k +2,61 Nxe6 fxe6
 41/70- 03:55 1 662 799k 7 048k +2,52 Nxe6 fxe6
 41/70+ 04:03 1 717 708k 7 051k +2,61 Nxe6

Jarkko Pesonen

unread,
Mar 18, 2021, 1:20:05 PMMar 18
to FishCooking
Lol, Totally wrong position.

Jarkko Pesonen

unread,
Mar 18, 2021, 7:15:35 PMMar 18
to FishCooking
New record

FEN: 2rqr1k1/pp1bbp1p/2n1p1pB/2N1P3/1PQp4/P4N2/5PP1/3RR1K1 w - - 0 1

Stockfish_21031710_x64_avx2:
Found 145 tablebases
NNUE evaluation using nn-62ef826d1a6d.nnue enabled

 52/77+ 20:07 8 536 468k 7 067k +0,57 Nxb7
 52/77 20:52 8 862 997k 7 077k +0,72 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qg4 Qc7 Nc4 Bxe5 Nxe5 Qxe5 Rfe1 Qf6 Rd2 Rxd2 Bxd2 Qb2 Bh6 Qb4 Qxb4 axb4 a5 Rb8 b6 Nxb6 axb6 Rxb6 Be3 Rb5 Kf1 g5 Rb1 b3 Ke2 Kg7 Kd3 h5 Bd4+ Kh6 Kc4 Rd5 Rxb3 Kg6
 53/8- 23:52 10 182 591k 7 106k +0,64 Nxb7 Qc7
 53/72- 25:30 10 900 899k 7 121k +0,56 Nxb7 Qc7
 53/72 27:41 11 831 481k 7 123k +0,52 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qg4 Qc7 Nc4 Bxe5 Nxe5 Qxe5 Rfe1 Qf6 Rd2 Rxd2 Bxd2 Qb2 Bh6 Qb4 Qxb4 axb4 a5 Rb8 b6 Nxb6 axb6 Rxb6 Be3 Rb5 Kf1 g5 Ke2 Kg7 Kd3 Kg6 Kc4 Rb8 Rb1 h5 Kb3 Rc8 Rh1 h4 Kxb4 Kf5 Rc1 Rxc1 Bxc1
 54/46+ 27:46 11 869 792k 7 124k +0,61 Nxb7
 54/68+ 27:53 11 922 353k 7 125k +0,69 Nxb7
 54/68 28:00 11 972 004k 7 125k +0,71 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qg4 Qc7 Nc4 Bxe5 Nxe5 Qxe5 Rfe1 Qf6 Rd2 Rxd2 Bxd2 Qb2 Bh6 Qb4 Qxb4 axb4 a5 Rb8 b6 Nxb6 axb6 Rxb6 Be3 Rb5 Kf1 g5 Rb1 h5 Rb3 Kg7 Bd2 Kg6 Rxb4 Rxb4 Bxb4 f6 Ba5 Kf5 Ke2 h4 Kf3 g4+ Ke3 h3 g3
 55/63- 29:49 12 760 860k 7 131k +0,63 Nxb7 Qc7
 55/75- 32:04 13 735 900k 7 138k +0,55 Nxb7 Qc7
 55/75- 40:08 17 256 296k 7 164k +0,42 Nxb7 Qc7
 55/75+ 40:53 17 588 692k 7 168k +0,52 Nxb7
 55/75+ 41:14 17 739 003k 7 168k +0,77 Nxb7
 55/75 41:20 17 782 585k 7 168k +0,65 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qg4 Qc7 Nc4 Bxe5 Nxe5 Qxe5 Rfe1 Qf6 Rd2 Rxd2 Bxd2 Qb2 Bh6 Qb4 Qxb4 axb4 Ra1 Rb8 Kf1 b3 Bc1 Kf8 Ra3 Nb6 a5 Nc4 a6 Rxb5 a7 Nb6 a8Q+ Nxa8 Rxa8+ Kg7 Bb2+ e5 Ke2 h5 f4 f6 fxe5 fxe5 Ra6 Rc5 Kd3 Rc2 Bxe5+ Kh7 Ra7+ Kh6 Bg7+ Kg5 Ra5+ Kg4
 56/70+ 42:34 18 321 715k 7 172k +0,74 Nxb7
 56/76- 45:08 19 448 888k 7 181k +0,57 Nxb7 Qc7
 56/76+ 45:55 19 794 786k 7 184k +0,69 Nxb7
 56/85 47:01 20 275 556k 7 186k +0,65 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qg4 Qc7 Nc4 Bxe5 Nxe5 Qxe5 Rfe1 Qf6 Rd2 Rxd2 Bxd2 Qb2 Bh6 Qb4 Qxb4 axb4 Ra1 Rb8 Kf1 b3 Bc1 Kf8 Ra3 Nb6 a5 Nc4 a6 Rxb5 a7 Nb6 a8Q+ Nxa8 Rxa8+ Kg7 Bb2+ e5 f4 f6 fxe5 fxe5 Ra7+ Kh6 Kf2 g5 Kf3 Rb6 Re7 Kg6 Rxe5 h5 Re4 Kf5 Rc4 h4 Rd4 Kg6 Ke2 Kh5 Kd3 Rg6
 57/78- 52:18 22 561 710k 7 189k +0,57 Nxb7 Qc7
 57/78+ 53:15 22 970 402k 7 189k +0,65 Nxb7
 57/78 53:45 23 190 333k 7 190k +0,65 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qg4 Qc7 Nc4 Bxe5 Nxe5 Qxe5 Rfe1 Qf6 Rd2 Rxd2 Bxd2 Qb2 Bh6 Qb4 Qxb4 axb4 Ra1 Rb8 Kf1 b3 Bc1 Kf8 Ra3 Nc3 Bb2 Nb1 Ra1 Nd2+ Ke2 Nc4 Bd4 Ke8 Kd3 Rc8 b6 e5 b7 Rb8 Kxc4 exd4 a5 Rxb7 a6 Ra7 Kxb3 Kd7 Kc4 Kc6 Kxd4 f6 Kc4 Kb6 Kd5 Rxa6 Rxa6+ Kxa6 Ke6 f5 Kf6 Kb5 Kg5
 58/76- 56:47 24 519 797k 7 197k +0,57 Nxb7 Qc7
 58/76- 1:06:39 28 832 697k 7 209k +0,49 Nxb7 Qc7
 58/86+ 1:09:10 29 959 781k 7 218k +0,57 Nxb7
 58/87+ 1:11:12 30 884 210k 7 229k +0,75 Nxb7
 58/87+ 1:17:52 33 923 490k 7 260k +1,00 Ne4
 58/87+ 1:23:10 36 371 242k 7 287k +1,32 Ne4
 58/87 1:31:35 40 197 976k 7 314k +1,31 Ne4 a5 b5 Nb4 Qxd4 Nc2 Qxd7 Nxe1 Nxe1 Rc7 Qd4 Qxd4 Rxd4 Rd8 Ra4 b6 Be3 Rd5 Bxb6 Rc1 Bxa5 Rxb5 Bd2 Ra1 Nd6 Rxe5 Ra8+ Kg7 Ne8+ Kg8 Nc7+ Kg7 Kf1 Rxa3 Rxa3 Rxe1+ Kxe1 Bxa3 Ne8+ Kf8 Nf6 Kg7 Ne4 f6 Ke2 h5 Be3 g5 Bd4 e5 Be3 Kg6 Kd3 Be7 Ng3 f5 Ne2
 59/54+ 1:34:36 41 527 625k 7 316k +1,39 Ne4
 59/54- 1:44:48 46 178 539k 7 344k +1,23 Ne4 a5
 59/73+ 1:46:41 47 052 268k 7 350k +1,35 Ne4
 59/79- 1:52:21 49 671 737k 7 368k +1,10 Ne4 a5
 59/88+ 2:01:01 53 719 209k 7 398k +1,31 Ne4
 59/88 2:03:55 55 059 074k 7 405k +1,50 Ne4 a5 b5 Nb4 Qxd4 Nc2 Qxd7 Nxe1 Nxe1 Rc7 Qd4 Qxd4 Rxd4 Rd8 Rxd8+ Bxd8 Bd2 Be7 Bxa5 Rc1 Nd6 f6 f4 g5 Nxb7 gxf4 exf6 Bxa3 Nd8 Ra1 Kf1 Bd6 Bc3 Rc1 Bd2 Rb1 Ke2 Rxb5 Nf3 Rb8 Ba5 Rb2+ Kd3 Rxg2 Bc3 h6 Be5 Ba3 Bd4 Bd6 Nxe6 Kf7 Nd8+ Ke8 Nb7 Bb8 Ke4 Rg3 Ne5 Bxe5 Bxe5 Kf7 Nd6+ Ke6 f7 Ke7 Kxf4 Rg1 Kf5 Rf1+ Kg6
 60/72- 2:05:44 55 907 291k 7 411k +1,41 Ne4 a5
 60/72- 2:16:26 60 803 187k 7 427k +1,33 Ne4 a5
 60/77+ 2:17:45 61 395 438k 7 428k +1,41 Ne4
 60/80+ 2:28:25 66 279 679k 7 443k +1,59 Ne4
 60/81- 2:31:48 67 823 369k 7 446k +1,21 Ne4 a5
 60/82+ 2:37:07 70 251 915k 7 452k +1,52 Ne4
 60/82 2:47:40 75 009 185k 7 456k +1,34 Ne4 a5 b5 Nb4 Qxd4 Nc2 Qxd7 Nxe1 Nxe1 Rc7 Qd3 Qxd3 Rxd3 Rd8 Rxd8+ Bxd8 Bd2 Be7 Bxa5 Rc1 Nd6 f6 f4 g5 Nxb7 Bxa3 exf6 gxf4 Nd8 Ra1 Kf1 Bd6 Bc3 Rc1 Bd2 Rb1 Ke2 Rxb5 Nf3 Rb8 Ba5 Rb2+ Kd3 Rxg2 Bc3 h6 Be5 Ba3 Bd4 Bd6 Nxe6 Kf7 Nd8+ Ke8 Nb7 Ba3 Ke4 Rc2 Kf5 Rc7 Na5 Bb4 Nb3 Kf7 Ne5+ Kg8 Ke6 Ba3 f7+ Kh7 Kf6 Rb7 Bc5
 61/30- 2:52:56 77 382 916k 7 457k +1,26 Ne4 a5
 61/70+ 2:54:34 78 157 179k 7 462k +1,34 Ne4
 61/70+ 2:54:59 78 359 357k 7 463k +1,47 Ne4
 61/92 2:56:39 79 158 709k 7 468k +1,55 Ne4 a5 b5 Nb4 Qxd4 Nc2 Qxd7 Nxe1 Nxe1 Rc7 Qd3 Qxd3 Rxd3 Rd8 Rxd8+ Bxd8 Bd2 Be7 Bxa5 Rc1 Nd6 f6 f4 g5 Nxb7 Bxa3 exf6 gxf4 Nd8 Ra1 Kf1 Bd6 Bc3 Rc1 Bd2 Rb1 Ke2 Rxb5 Nf3 Rb8 Ba5 Rb2+ Kd3 Rxg2 Bc3 h6 Be5 Ba3 Bd4 Ra2 Ne5 f3 Nxf3 Bd6 f7+ Kf8 Ne5 Ke7 Nc4 Ra8 Nc6+ Kxf7 Nxd6+ Kg6 Ke4 h5 Ne5+ Kg5 Be3+ Kh4 Kf4 Rg8 Ndf7 Kh3 Nd3 Rg4+ Kf3 Rg3+ Kf2 Kg4 Nh6+ Kh3 Nf4+ Kh4 Nxe6
 62/76- 3:02:49 82 103 435k 7 485k +1,47 Ne4 a5
 62/76- 3:04:47 83 019 921k 7 488k +1,39 Ne4 a5
 62/76- 3:19:55 89 917 955k 7 496k +1,26 Ne4 a5
 62/80+ 3:31:12 95 123 020k 7 506k +1,37 Ne4
 62/81 3:39:48 99 053 141k 7 510k +1,25 Ne4 a5 b5 Nb4 Qxd4 Nc2 Qxd7 Nxe1 Nxe1 Rc7 Qxd8 Rxd8 Rxd8+ Bxd8 Bd2 Be7 Bxa5 Rc1 Nd6 f6 f4 g5 Nxb7 Bxa3 exf6 gxf4 Nd8 Ra1 Kf1 Bd6 Nb7 Be5 b6 Bxf6 Nd6 Rb1 Ke2 Bd8 Nc4 e5 Kd3 Bxb6 Nxb6 Rb5 Nc4 Rd5+ Kc2 e4 Bd2 f3 Be3 fxg2 Nxg2 h5 Bf4 Rd3 Ne5 Rd8 Bg3 Ra8 Ne3 Ra5 Kb3 h4 Bf4 h3 N3g4 e3 Nxe3 Ra8 Nf5 Kh7 Kc3 Ra4
 63/54- 4:04:34 110 250 188k 7 513k +1,16 Ne4 a5
 63/54- 4:15:44 115 352 701k 7 517k +1,08 Ne4 a5
 63/63+ 4:51:34 131 707 045k 7 528k +1,16 Ne4
 63/92- 5:28:24 148 628 503k 7 543k +0,96 Ne4 a5
 63/92+ 5:28:30 148 672 786k 7 543k +1,15 Ne4
 63/92+ 5:30:15 149 485 843k 7 544k +1,48 Ne4
 63/92 5:30:58 149 820 063k 7 544k +1,32 Ne4 a5 b5 Nb4 Qxd4 Nc2 Qxd7 Nxe1 Nxe1 Rc7 Qd3 Qxd3 Rxd3 Rd8 Rxd8+ Bxd8 Bd2 Be7 Bxa5 Rc1 Nd6 f6 f4 g5 Nxb7 gxf4 exf6 Bxf6 Kf2 Rb1 a4 Ra1 Bb4 Rxa4 Nd3 Ra8 Nd6 Rd8 Ke2 Be7 Ne4 Bxb4 Nxb4 Rd4 Nf6+ Kh8 Na6 Rd6 Ne4 Rb6 Nc3 Kg7 Nc7 Kf7 Na4 Rb7 b6 Ke7 Nxe6 Kd6 Nec5 Rb8 Kf3 Kc6 Kxf4 Rf8+ Kg3 Re8 b7 Rd8
 64/79+ 5:48:05 157 761 575k 7 554k +1,40 Ne4
 64/81- 5:51:25 159 303 270k 7 555k +1,24 Ne4 a5

On Friday, 26 February 2021 at 14:43:18 UTC+2 Glarean Magazin wrote:

Jarkko Pesonen

unread,
May 22, 2021, 10:16:35 PMMay 22
to FishCooking
Nice improvement in finding this hard position,


FEN: 2rqr1k1/pp1bbp1p/2n1p1pB/2N1P3/1PQp4/P4N2/5PP1/3RR1K1 w - - 0 1

Stockfish_21052219_x64_avx2:
Found 145 tablebases
NNUE evaluation using nn-7756374aaed3.nnue enabled

...
 53/67 15:06 5 756 426k 6 347k +0,62 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qg4 Qc7 Nc4 Bxe5 Nxe5 Qxe5 Rfe1 Qf6 Rd2 Rxd2 Bxd2 Qb2 Bh6 Qb4 Qxb4 axb4 Ra1 Rb8 Kf1 b3 Bc1 f6 Ke2 e5 Kd3 Rc8 Bd2 Rd8 Ke2 Ra8 Rb1 Rxa4 Rxb3 Ra7 Kd3 Rd7 Be3 Kf7 Kc4 Ke6 b6 Rb7 Kb5 Kd7
 54/62- 16:43 6 348 738k 6 329k +0,53 Nxb7 Qc7
 54/71+ 17:01 6 460 882k 6 327k +0,62 Nxb7
 54/71- 18:47 7 121 866k 6 315k +0,45 Nxb7 Qc7
 54/74+ 22:14 8 408 393k 6 303k +0,60 Nxb7
 54/74 22:41 8 578 299k 6 299k +0,62 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qe4 Ra2 Nf3 Bb4 Ng5 Rxa4 Qc4 Rc8 Qh4 Qe7 Rc1 Rb8 Qd4 Qb7 Rc6 Qxb5 Rfc1 Qb7 Ne4 Bf8 Qxa4 Bxh6 Nd6 Qb4 Rc8+ Rxc8 Rxc8+ Bf8 Qxb4 axb4 Rb8 h5 Ne4 Kg7 Nf6 Bc5 Nxd5 exd5 Kf1 g5 Rb5 Be7 Ke2 Kg6 Rxd5 Kf5 Kd3 b3 Rb5 b2 Rxb2 Kxe5 Rb7
 55/66- 23:27 8 857 156k 6 294k +0,53 Nxb7 Qc7
 55/66+ 27:14 10 284 962k 6 292k +0,62 Ne4
 55/73+ 36:06 13 576 601k 6 267k +1,49 Ne4
 55/73 36:35 13 754 484k 6 266k +1,25 Ne4 a5 b5 Nb4 Qxd4 Nc2 Qxd7 Nxe1 Nxe1 Rc7 Qd4 Qxd4 Rxd4 Rd8 Ra4 b6 Be3 Rd5 Bxb6 Rc1 Bxa5 Rxb5 Bd2 Ra1 Ra8+ Kg7 Nd6 Rxe5 Ne8+ Kg8 Kf1 Rxa3 Rb8 g5 Nd6+ Kg7 Nc4 Rxe1+ Kxe1 Ra4 Nb6 Ra2 Nd7 Bf6 Nxf6 Kxf6 g4 Ra4 Bc3+ Kg6 Rg8+ Kh6 Bg7+ Kg6 Bh8+ Kh6
 56/68+ 37:39 14 155 108k 6 265k +1,33 Ne4
 56/68+ 38:55 14 638 860k 6 267k +1,41 Ne4
 56/73+ 40:11 15 114 412k 6 269k +1,53 Ne4
 56/74 40:59 15 416 882k 6 269k +1,44 Ne4 a5 b5 Nb4 Qxd4 Nc2 Qxd7 Nxe1 Nxe1 Rc7 Qd4 Qxd4 Rxd4 Rd8 Ra4 b6 Be3 Rd5 Bxb6 Rc1 Bxa5 Rxb5 Bd2 Ra1 Ra8+ Kg7 Nd6 Rxe5 Ne8+ Kg8 Kf1 Bxa3 Nc7+ Kg7 Rb8 Rc5 Rb7 Rxc7 Rxc7 Bb2 g3 Bf6 Kg2 g5 Nf3 Kg6 Rc4 h6 Be3 Ra5 Nd2 h5 Ne4 Bg7 Nc5 Ra1 Nd7 Rd1 Rc7 h4 g4 Re1 Kh2 Rd1

Jarkko Pesonen

unread,
May 26, 2021, 2:10:22 PMMay 26
to FishCooking
https://glarean-magazin.ch/category/schach/computerschach/
position FEN: 6k1/2p3p1/B4R1P/R3P2K/4p1pP/P3q3/1Qp5/2r4r w - - 0 1

Stockfish_21052617_x64_avx2:
Found 145 tablebases
NNUE evaluation using nn-7756374aaed3.nnue enabled

It's mate in 28

1. Bc4+ Kh7 2. Bg8+ Kxg8 3. Rf8+ Kh7 4. Rh8+ Kxh8 5. hxg7+ Kxg7 6. e6+ Kh7
7. Qh8+ Kxh8 8. Kg6 Qh6+ 9. Kxh6 Rxh4+ 10. Kg6 Rh6+ 11. Kxh6 Rh1+ 12. Kg6
Rh6+ 13. Kxh6 c1=Q+ 14. Kg6 Qc6 15. Kf7 Qxe6+ 16. Kxe6 Kg7 17. Rg5+ Kf8 18.
Rxg4 e3 19. Rg1 e2 20. a4 c6 21. a5 e1=Q+ 22. Rxe1 Kg7 23. Rg1+ Kh6 24. a6
Kh5 25. a7 Kh6 26. a8=Q Kh7 27. Qf8 c5 28. Qg7# 1-0

39/14 00:06 45 706k 7 415k 0,00 Qxc1 Rxh4+ Kxh4 Qxc1 Bc4+ Kh7 hxg7 Qh1+ Kxg4 Qd1+ Kh4 Qe1+ Kg4
 40/33+ 00:06 51 702k 7 413k +0,07 Bc4+
 40/33+ 00:06 51 769k 7 415k +0,15 Bc4+
 40/44+ 00:07 52 013k 7 426k +10,75 Bc4+
 40/44 00:07 52 059k 7 428k +10,76 Bc4+ Kh7 Bg8+ Kxg8 Rf8+ Kh7 Rh8+ Kxh8 hxg7+ Kxg7 e6+ Kh7 Qh8+ Kxh8 Kg6 Qh6+ Kxh6 Rxh4+ Kg6 Rh6+ Kxh6 Rh1+ Kg6 Rh6+ Kxh6 c1Q+ Kg6 Qc6 Kf7 Qe8+ Kxe8 Kg7 e7 g3 Kd7 g2 Rg5+ Kf6 Rxg2 Ke5 e8Q+ Kd4
 41/47+ 00:07 52 988k 7 465k +10,85 Bc4+
 41/51+ 00:07 53 275k 7 478k +10,93 Bc4+
 41/51+ 00:07 56 172k 7 605k +55,94 Bc4+
 41/51 00:07 56 177k 7 606k +61,87 Bc4+ Kh7 Bg8+ Kxg8 Rf8+ Kh7 Rh8+ Kxh8 hxg7+ Kxg7 e6+ Kh7 Qh8+ Kxh8 Kg6 Qh6+ Kxh6 Rxh4+ Kg6 Rh6+ Kxh6 Rh1+ Kg6 Rh6+ Kxh6 c1Q+ Kg6 Qc6 Kf7
 42/42 00:07 60 996k 7 748k +61,87 Bc4+ Kh7 Bg8+ Kxg8 Rf8+ Kh7 Rh8+ Kxh8 hxg7+ Kxg7 e6+ Kh7 Qh8+ Kxh8 Kg6 Qh6+ Kxh6 Rxh4+ Kg6 Rh6+ Kxh6 Rh1+ Kg6 Rh6+ Kxh6 c1Q+ Kg6 Qc6 Kf7 Qe8+ Kxe8 Kg7 e7 Kg6 Kd7 Kh7 Kd8 c5 e8Q c4 Qxe4+ Kh8
 43/26- 00:08 64 100k 7 829k +61,50 Bc4+ Kh7
 43/43+ 00:08 64 101k 7 829k +67,19 Bc4+
 43/43 00:08 64 159k 7 830k +67,20 Bc4+ Kh7 Bg8+ Kxg8 Rf8+ Kh7 Rh8+ Kxh8 hxg7+ Kxg7 e6+ Kh7 Qh8+ Kxh8 Kg6 Qh6+ Kxh6 Rxh4+ Kg6 Rh6+ Kxh6 Rh1+ Kg6 Rh6+ Kxh6 c1Q+ Kg6 Qc6 Kf7 Qe8+ Kxe8 Kg7 e7 g3 Kd7 g2 e8Q g1R Qe5+ Kg8 Ra8+ Kh7
 44/44 00:08 64 717k 7 844k +67,20 Bc4+ Kh7 Bg8+ Kxg8 Rf8+ Kh7 Rh8+ Kxh8 hxg7+ Kxg7 e6+ Kh7 Qh8+ Kxh8 Kg6 Qh6+ Kxh6 Rxh4+ Kg6 Rh6+ Kxh6 Rh1+ Kg6 Rh6+ Kxh6 c1Q+ Kg6 Qc6 Kf7 Qe8+ Kxe8 Kg7 e7 g3 Kd7 g2 e8Q g1R Qe5+ Kg8 Ra8+ Kh7 Rh8+ Kg6 Rg8+ Kh7
 45/45 00:08 68 819k 7 946k +67,20 Bc4+ Kh7 Bg8+ Kxg8 Rf8+ Kh7 Rh8+ Kxh8 hxg7+ Kxg7 e6+ Kh7 Qh8+ Kxh8 Kg6 Qh6+ Kxh6 Rxh4+ Kg6 Rh6+ Kxh6 Rh1+ Kg6 Rh6+ Kxh6 c1Q+ Kg6 Qc6 Kf7 Qe8+ Kxe8 Kg7 e7 g3 Kd7 g2 e8Q g1R Qe5+ Kg8 Ra8+ Kh7 Rh8+ Kg6 Rg8+ Kh7
 46/46+ 00:08 68 820k 7 946k +67,30 Bc4+
 46/46+ 00:08 68 820k 7 946k +67,46 Bc4+
 46/46+ 00:08 68 822k 7 946k +152,40 Bc4+
 46/46 00:08 68 834k 7 947k +152,40 Bc4+ Kh7 Bg8+ Kxg8 Rf8+ Kh7 Rh8+ Kxh8 hxg7+ Kxg7 e6+ Kh7 Qh8+ Kxh8 Kg6 Qh6+ Kxh6 Rxh4+ Kg6 Rh6+ Kxh6 Rh1+ Kg6 Rh6+ Kxh6 c1Q+ Kg6 Qc6 Kf7 Qe8+ Kxe8 Kg7 e7 g3 Kd7 g2 e8Q g1Q Qe5+ Kf7 Qf4+ Kg6
 47/47 00:14 127 189k 9 015k +152,42 Bc4+ Kh7 Bg8+ Kxg8 Rf8+ Kh7 Rh8+ Kxh8 hxg7+ Kxg7 e6+ Kh7 Qh8+ Kxh8 Kg6 Qh6+ Kxh6 Rxh4+ Kg6 Rh6+ Kxh6 Rh1+ Kg6 Rh6+ Kxh6 c1Q+ Kg6 Qc6 Kf7 Qe8+ Kxe8 Kg7 e7 g3 Kd7 g2 e8Q g1R Qe5+ Kg8 Qg5+ Kh7 Qh5+ Kg7 Rg5+ Rxg5 Qxg5+ Kf7
 48/48- 00:19 180 681k 9 471k +86,45 Bc4+ Kh7
 48/48+ 00:19 180 682k 9 471k +152,43 Bc4+
 48/48- 00:19 182 623k 9 473k +87,50 Bc4+ Kh7
 48/48+ 00:19 182 624k 9 473k +152,43 Bc4+
 48/48 00:19 182 919k 9 473k +152,42 Bc4+ Kh7 Bg8+ Kxg8 Rf8+ Kh7 Rh8+ Kxh8 hxg7+ Kxg7 e6+ Kh7 Qh8+ Kxh8 Kg6 Qh6+ Kxh6 Rxh4+ Kg6 Rh6+ Kxh6 Rh1+ Kg6 Rh6+ Kxh6 c1Q+ Kg6 Qc6 Kf7 Qe8+ Kxe8 Kg7 Kd8 Kh6 Kxc7 Kg7 e7 g3 e8Q Kf6 Qe5+ Kf7 Qf4+ Kg6 Qxe4+ Kh6 Qh4+ Kg6
..
 71/61 17:36 11 009 147k 10 417k +152,47 Bc4+ Kh7 Bg8+ Kxg8 Rf8+ Kh7 Rh8+ Kxh8 hxg7+ Kxg7 e6+ Kh7 Qh8+ Kxh8 Kg6 Qh6+ Kxh6 Rxh4+ Kg6 Rh6+ Kxh6 Rh1+ Kg6 Rh6+ Kxh6 c1Q+ Kg6 Qc6 Kf7 Qxe6+ Kxe6 Kg7 Rg5+ Kf8 Rxg4 e3 Re4 Ke8 Rxe3 Kd8 a4 Kc8 a5 Kb7 a6+ Kb8 a7+ Kb7
 72/59+ 17:37 11 013 694k 10 417k +152,65 Bc4+
 72/59+ 17:37 11 013 917k 10 417k +M78 Bc4+
 72/59+ 17:37 11 016 662k 10 417k +M46 Bc4+
 72/64 17:38 11 024 309k 10 416k +M32 Bc4+ Kh7 Bg8+ Kxg8 Rf8+ Kh7 Rh8+ Kxh8 hxg7+ Kxg7 e6+ Kh7 Qh8+ Kxh8 Kg6 Qh6+ Kxh6 Rxh4+ Kg6 Rh6+ Kxh6 Rh1+ Kg6 Rh6+ Kxh6 c1Q+ Kg6 Qc6 Kf7 Qxe6+ Kxe6 Kg7 Rg5+ Kf8 Rxg4 e3 Re4 Ke8 Rxe3 Kd8 Kd5 Kd7 a4 c6+ Kc5 Kc7 Re1 Kd7 Re4 Kc7 a5 Kd7 a6 Kc7 a7 Kb7 Re7+ Ka8 Re8+ Kxa7 Kxc6 Ka6 Ra8+
 73/66 56:20 33 776 696k 9 991k +M29 Bc4+ Kh7 Bg8+ Kxg8 Rf8+ Kh7 Rh8+ Kxh8 hxg7+ Kxg7 e6+ Kh7 Qh8+ Kxh8 Kg6 Qh6+ Kxh6 Rxh4+ Kg6 Rh6+ Kxh6 Rh1+ Kg6 Rh6+ Kxh6 c1Q+ Kg6 Qc6 Kf7 Qxe6+ Kxe6 Kg7 Rg5+ Kh6 Rxg4 e3 Kf5 c5 Re4 Kg7 Rxe3 Kf7 a4 c4 a5 c3 Rxc3 Kg7 a6 Kf7 a7 Ke7 a8Q Kd7 Ke5 Ke7 Rc7+

On Friday, 26 February 2021 at 14:43:18 UTC+2 Glarean Magazin wrote:

leotr...@gmail.com

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Jun 1, 2021, 8:26:47 PMJun 1
to FishCooking
FEN: 2rqr1k1/pp1bbp1p/2n1p1pB/2N1P3/1PQp4/P4N2/5PP1/3RR1K1 w - - 0 1 is broken again ((((

четверг, 27 мая 2021 г. в 00:10:22 UTC+6, jarkkok...@gmail.com:

Jarkko Pesonen

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Jun 17, 2021, 1:51:46 PMJun 17
to FishCooking
Still room for improvment


FEN: 2rqr1k1/pp1bbp1p/2n1p1pB/2N1P3/1PQp4/P4N2/5PP1/3RR1K1 w - - 0 1

Stockfish_21061522_x64_avx2:
Found 145 tablebases
NNUE evaluation using nn-33c9d39e5eb6.nnue enabled

 ...
 52/73 55:16 5 694 645k 1 717k +0,44 Nxb7 Qc7 Nc5 a5 Rc1 axb4 axb4 Nxb4 Qxb4 Bxc5 Qd2 Qb8 Rb1 Qc7 Rec1 d3 Qg5 Be7 Rxc7 Bxg5 Rxc8 Bxh6 Rxe8+ Bxe8 Rb8 Kf8 Rd8 Bf4 g3 Bc1 Rxd3 Bc6 Nd4 Bd5 f4 Bb2 Ne2 Kg7 Rd2 Ba3 Rc2 Bb4 Rc8 Ba5 Kf2 h5 Nc3 Bb7 Rb8 Bxc3 Rxb7 g5 Ke2 Ba5 Ra7 Bb6 Ra6 Bd4 Kd3
 53/72+ 1:19:15 8 175 144k 1 719k +0,52 Qb3
 53/72+ 1:35:17 9 844 314k 1 722k +0,60 Ne4
 53/78+ 2:08:24 13 259 071k 1 721k +1,91 Ne4
 53/78 2:09:15 13 347 185k 1 721k +1,62 Ne4 a5 b5 Nb4 Qxd4 Nc2 Qxd7 Nxe1 Nxe1 Rc7 Qd4 Qxd4 Rxd4 Rd8 Ra4 b6 Be3 Rd5 Bxb6 Rc1 Bxa5 Rxb5 Bc3 Rb3 Ra8+ Kg7 Bd2 Rd1 Kf1 Rxa3 Re8 Ra7 Ke2 Rda1 Nd3 R1a2 g4 h6 Ke3 R2a6 Rc8 Rd7 Bc3 Ra3 Nd6
...
 60/73 5:51:49 36 964 002k 1 751k +1,17 Ne4 a5 b5 Nb4 Qxd4 Nc2 Qxd7 Nxe1 Nxe1 Rc7 Qd4 Qxd4 Rxd4 Rd8 Ra4 b6 Be3 Rd5 Bxb6 Rc1 Bxa5 Rxb5 Bd2 Ra1 Ra8+ Kg7 Nf6 Rxe5 Ne8+ Kg8 Nc7+ Kg7 Kf1 Rxa3 Rxa3 Rxe1+ Kxe1 Bxa3 Ne8+ Kf8 Nf6 Kg7 Bc3 Bb4 Ne8+ Kf8 Bxb4+ Kxe8 Bc3 Ke7 Ke2 f6 Kd3 Kf7 Ke4 g5 Bd4 h5 Bb6 h4 Ba7 Kg6 Bc5 Kf7 Bd6 Kg7 f3 Kg6 Bf8
 61/72+ 6:01:54 38 038 614k 1 752k +1,25 Ne4
 61/74+ 6:19:36 39 936 416k 1 753k +1,34 Ne4

Jarkko Pesonen

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Jun 22, 2021, 1:40:21 PMJun 22
to FishCooking
 And here is the jump forward.
8-cores AMD


FEN: 2rqr1k1/pp1bbp1p/2n1p1pB/2N1P3/1PQp4/P4N2/5PP1/3RR1K1 w - - 0 1

Stockfish_21062211_x64_avx2:
Found 145 tablebases
NNUE evaluation using nn-190f102a22c3.nnue enabled
 1/1 00:00 421 421k +2,08 Nxb7
...
 40/59 02:31 1 422 430k 9 372k +0,66 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Rd2 Rec8 Rxc2 Rxc2 Nd2 Bf8 Bxf8 Kxf8 Ne4 Qc7 Nf6 Qc3 Re4 Qxd4 Rxd4 Ke7 Nxd5+ exd5 Rxd5 Rb2 f4 Rb4 b6 Rxb6 Rxa5 Ke6 Ra7 g5 fxg5 Rb4 Kf2 Kxe5 a5 Ra4 a6 Ke6 Ke3 Ra5 Ra8 Kf5 Kd4 Kxg5
 41/40+ 02:52 1 620 617k 9 368k +0,75 Ne4
 41/40+ 02:59 1 685 596k 9 368k +0,83 Ne4
 41/40+ 03:15 1 837 258k 9 382k +1,37 Ne4
 41/66 03:38 2 055 403k 9 394k +1,23 Ne4 a5 b5 Nb4 Qxd4 Nc2 Qxd7 Nxe1 Nxe1 Rc7 Qd4 Qxd4 Rxd4 Rd8 Ra4 b6 Be3 Rd5 Bxb6 Rc1 Bxa5 Rxb5 Bd2 Ra1 Rc4 Rxe5 Rc8+ Kg7 f3 Rxa3 Nc2 Rd3 Bc3 Rxc3 Rxc3 Ra5 Rc7 Bd8 Rb7 Ra7 Rb4 Bf6 Ne1 Be7 Rb5 f5 Nf2 Kf6 Nfd3 g5 Nc2 g4 fxg4 fxg4 Nd4
 42/31+ 03:51 2 174 680k 9 389k +1,31 Ne4
 42/70 04:09 2 342 154k 9 371k +1,26 Ne4 a5 b5 Nb4 Qxd4 Nc2 Qxd7 Nxe1 Nxe1 Rc7 Qd4 Qxd4 Rxd4 Rd8 Ra4 b6 Be3 Rd5 Bxb6 Rc1 Bxa5 Rxb5 Bd2 Ra1 Nd6 Rxe5 Ra8+ Kg7 Ne8+ Kg8 Nc7+ Kg7 Kf1 Rxa3 Ne8+ Kg8 Rb8 g5 Nd6+ Kg7 Nc4 Rd5 Nxa3 Rxd2 Nc4 Rd4 Rc8 h5 Nf3 Rd7 Nfd2 Ra7 Rc6 Ra1+ Ke2 Ra2 Kf3 Bf6 Rc7 Bd4 Ne4 Kg6 Rd7 g4+ Kg3

The funny thing is that when I run this with 4-cores the fastest time was 
 42/65+ 03:44 1 387 699k 6 188k +0,85 Ne4
and the slowest
50/71 36:11 13 008 543k 5 991k +0,49 Nxb7 Qc7 Nc5 a5 Nxd7 Qxd7 b5 Nb4 Qxd4 Nd5 a4 Rc2 Nd2 Bb4 Rf1 Bc3 Qe4 Ra2 Nf3 Bb4 Nh2 Rxa4 Qh4 Qc7 Ng4 Be7 Nf6+ Bxf6 Qxa4 Qxe5 Rc1 Nc3 Rxc3 Qxc3 b6 Rd8 b7 Qc7 Qb5 Be5 g3 f6 Rc1 Qd7 Qxd7 Rxd7 Rc8+ Kf7 Rf8+ Ke7 b8R Bxb8 Rxb8 Rd8 Rb7+ Rd7 Bf8+ Ke8 Rb8+ Rd8 Rxd8+ Kxd8

Multithreading at work

leotr...@gmail.com

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Jun 23, 2021, 3:55:55 AMJun 23
to FishCooking
yeah, now it finds much faster - took 232 seconds to reach to Ne4 without PV and 274 with PV on 30 threads.

вторник, 22 июня 2021 г. в 23:40:21 UTC+6, jarkkok...@gmail.com:

leotr...@gmail.com

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Jul 21, 2021, 12:51:52 PMJul 21
to FishCooking
Okay, much better now - 141 second on depth 38

среда, 23 июня 2021 г. в 13:55:55 UTC+6, leotr...@gmail.com:

leotr...@gmail.com

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Sep 4, 2021, 9:27:47 PMSep 4
to FishCooking
Took longer 202s but the depth is 40

среда, 21 июля 2021 г. в 22:51:52 UTC+6, leotr...@gmail.com:
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