New EG puzzles to solve

[Nordlandia]

SF Dev at +3/4

[d]8/2p1P1p1/2r1P3/1p2k1BK/6p1/1b1P4/2n3P1/7n w - - 0 0

SF struggles at first

[d]5RR1/6P1/8/2b5/1P1p2pK/2p1pN1p/5PPp/5krr w - - 0 0

SF struggles - J.Timman

[d]4k3/K3p1r1/1P2P3/7P/p1N1N1p1/3P2p1/q7/8 w - - 0 0

Difficult

[d]n7/4p3/3pP3/K4P1p/p2P4/2P2R1N/4p3/3k4 w - - 0 0
Unusual one - L. Gonzalez

SF at mere +3.00 after about 10 minutes think

[d]8/2q3pP/3p2P1/3P4/8/5Pk1/7p/1RR2K2 w - - 0 0

[Jouni]

Crystal solves(?) 3+4 in short time:

1.h6 Rg5 2.Nxg5 Qh2 3.Nd6+ exd6 4.b7 g2 5.b8Q+ Ke7 6.Qg8 g1Q+ 7.Ka6 d5 8.Qf7+ Kd6 9.e7 Qe3 10.e8Q Qxd3+ 11.Ka7 Qg1+ 12.Kb8 Qgb1+ 13.Qb7 Qxb7+ 14.Kxb7 Qb3+ 15.Ka7 a3 16.h7 a2 17.Qf8+ Kd7 18.Qg7+ Kc6 19.Qf6+ Kc5 20.Ne6+ Kb4 21.Qe7+ Kc4 22.Qc7+ Kd3 23.Nc5+ Ke2 24.Nxb3 a1Q+ 25.Nxa1 Kf1 26.h8Q
+- (14.28) Depth: 29/65 00:01:03 632mN, tb=2203598

1.Nf2+ Kc2 2.Nd3 a3 3.Ne1+ Kc1 4.c4 a2 5.Ra3 Kb2 6.Ra4 Nc7 7.f6 exf6 8.e7 Ne8 9.Kb6 h4 10.c5 dxc5 11.Kxc5 a1R 12.Nd3+ Kb1 13.Rxa1+ Kxa1 14.d5 h3 15.d6 h2 16.d7 h1Q 17.dxe8Q Qg1+ 18.Kc4 Qg4+ 19.Kc3 Qe4 20.Qd7 e1Q+ 21.Nxe1 Qxe1+ 22.Kc4 Qc1+ 23.Kb5 Qb2+ 24.Kc6 Qc3+ 25.Kb7 Qb4+ 26.Kc8 Qc5+ 27.Kd8 Qa5+ 28.Ke8 Qh5+ 29.Kf8
+- (4.26) Depth: 33/70 00:00:50 538mN, tb=4036028

[Vinvin]

Crystal is fast for the first diag :

Code: Select all

FEN: 8/2p1P1p1/2r1P3/1p2k1BK/6p1/1b1P4/2n3P1/7n w - - 0 1

Crystal3.1-sse4-popcnt:
NNUE evaluation using nn-62ef826d1a6d.nnue enabled
...
 29/73	00:23	 127 174 290	5 440 145	+4,16	1.e8Q Rxe6 2.Qxb5+ Bd5 3.Qb2+ Nd4 4.Be3 Ng3+ 5.Kg5 Kd6 6.Qxd4 Re5+ 7.Kxg4 Nf5 8.Qb4+ Kd7 9.Bf4 Nh6+ 10.Kh4 Re2 11.Qc3 g5+ 12.Bxg5 Nf5+ 13.Kg4 Nd6 14.g3 Ra2 15.Bf4 Be6+ 16.Kh5 Ra8 17.Qd4 Rg8 18.Bg5 Kc8 19.Qf6 Bd7 20.g4 Be8+ 21.Kh4 Rg6 22.Qe7 Bb5 23.d4 Bc4 24.Qf8+ Kb7 25.Qf3+ c6 26.Qf8 Bd5 27.Bf4 Nb5
 30/67-	00:29	 158 666 932	5 338 725	+4,06	1.e8Q Rxe6
 30/67+	00:32	 170 885 154	5 339 159	+4,10	1.e8Q
 30/67+	00:34	 184 386 741	5 349 970	+4,16	1.e8Q
 

[Vinvin]

SF struggles - J.Timman

[d]4k3/K3p1r1/1P2P3/7P/p1N1N1p1/3P2p1/q7/8 w - - 0 0

After 1.h6 and some search, McCain-v2 reports some distance to mate :

Code: Select all

FEN: 4k3/K3p1r1/1P2P2P/8/p1N1N1p1/3P2p1/q7/8 b - - 0 1

McCain-v2_x64_modern-LMonge:
...
 46/31	01:34	1 087 352 556	11 534 816	+M15	1. ... Rg6 2.h7 Rh6 3.b7 Qb3 4.Nb6 Qxd3 5.b8Q+ Qd8 6.Qxg3 Rxh7 7.Qxg4 Qc7+ 8.Ka6 Qxb6+ 9.Kxb6 Kf8 10.Qg3 Rh6 11.Qf4+ Rf6 12.Nxf6 exf6 13.Qxf6+ Kg8 14.e7 Kh7 15.e8Q a3 16.Qfg6+
 46/31	01:34	1 087 352 556	11 534 816	+M15	1. ... Rh7 2.b7 Qb3 3.Nb6 Qxe6 4.b8Q+ Kf7 5.Ng5+ Kf6 6.Qf4+ Qf5 7.Nxh7+ Kg6 8.Nf8+ Qxf8 9.Qxf8 g2 10.Qg7+ Kf5 11.Qf7+ Ke5 12.h7 Kd4 13.h8Q+ e5 14.Qf2+ Kxd3 15.Qxe5 g1Q 16.Qfe2+
 47/47	01:34	1 087 352 556	11 534 816	+M23	1. ... Kf8 2.b7 Qb3 3.Nb6 Qxe6 4.b8Q+ Kf7 5.h7 Rxh7 6.Ng5+ Kf6 7.Qf4+ Qf5 8.Nxh7+ Kg6 9.Nf8+ Qxf8 10.Qxf8 g2 11.Qg8+ Kh5 12.Qd5+ e5 13.Qxg2 a3 14.Nd5 Kg5 15.Qe4 a2 16.Qxe5+ Kh4 17.Ne3 a1Q+ 18.Qxa1 Kg5 19.Qe5+ Kh6 20.Qe6+ Kg5 21.Qf5+ Kh6 22.Qxg4 Kh7 23.Nf5 Kh8 24.Qg7+
 47/65	01:34	1 087 352 556	11 534 816	+M32	1. ... Rg5 2.Nxg5 Qh2 3.Nd6+ exd6 4.b7 Ke7 5.b8Q g2 6.Qb7+ Kf6 7.Nh7+ Kxe6 8.Nf8+ Kf5 9.Qe4+ Kg5 10.Qe3+ Kf5 11.Qe6+ Kg5 12.Nh7+ Kh4 13.Qf6+ Kg3 14.Qxd6+ Kf2 15.Qxh2 g3 16.Qxg2+ Kxg2 17.Ng5 Kf2 18.Ne4+ Kf3 19.Nxg3 a3 20.h7 Kxg3 21.h8Q a2 22.Qg8+ Kf4 23.Qxa2 Ke3 24.Qc4 Kf3 25.Qe6 Kf2 26.d4 Kf3 27.d5 Kf4 28.d6 Kf3 29.d7 Kf4 30.Qf6+ Ke3 31.d8Q Ke2 32.Qdd4 Ke1 33.Qff2+
 47/67	01:34	1 087 352 556	11 534 816	+M32	1. ... Rg8 2.h7 Kf8 3.b7 Qb3 4.Nb6 Qxe6 5.b8Q+ Kg7 6.hxg8Q+ Qxg8 7.Qe5+ Kh7 8.Qh5+ Kg7 9.Nxg3 e6 10.Qxg4+ Kf7 11.Qxg8+ Kxg8 12.Nxa4 e5 13.Ne4 Kh7 14.Nb2 Kg6 15.Kb6 Kf5 16.Nc4 Ke6 17.Kc6 Kf5 18.Kd5 Kf4 19.Nxe5 Ke3 20.d4 Ke2 21.Nc5 Kf1 22.Kc6 Kf2 23.Nc4 Kg2 24.d5 Kh1 25.Nd2 Kg2 26.Nde4 Kf1 27.d6 Kg1 28.d7 Kf1 29.d8Q Kg2 30.Qg5+ Kh1 31.Qh4+ Kg2 32.Qf2+ Kh3 33.Qg3+

[Vinvin]

Difficult

[d]n7/4p3/3pP3/K4P1p/p2P4/2P2R1N/4p3/3k4 w - - 0 0

Piece of cake for Crystal3.1 : 20 seconds to get >+3 eval. Old i7-6*4GHz.

Code: Select all

FEN: n7/4p3/3pP3/K4P1p/p2P4/2P2R1N/4p3/3k4 w - - 0 1

Crystal3.1-sse4-popcnt:
Found 511 tablebases
NNUE evaluation using nn-62ef826d1a6d.nnue enabled
...
 25/43	00:04	 22 975 896	5 185 262	+0,07	1.Rd3+ Kc2 2.Re3 Kd2 3.Rxe2+ Kxe2 4.Kxa4 Nc7 5.f6 exf6 6.e7 Ke3 7.d5 h4 8.c4 Kd4 9.Kb4 f5 10.Ng5 Ke5 11.Nf3+ Kf6 12.Nxh4 f4 13.Kc3 Kxe7 14.Kd4 Kf6 15.Ke4 Kg5 16.Nf3+ Kg4 17.c5 dxc5 18.d6 Ne8 19.Ne5+ Kg5 20.d7 Nf6+ 21.Kd3 Nxd7
 26/43	00:05	 28 285 724	4 979 004	 0,00	1.Rd3+ Kc2 2.Re3 Kd2 3.Rxe2+ Kxe2 4.Kxa4 Nc7 5.f6 exf6 6.e7 Ke3 7.d5 h4 8.c4 Kd4 9.Kb4 f5 10.Ng5 Ke5 11.Nf3+ Kf6 12.Nxh4 f4 13.Kc3 Kxe7 14.Kd4 Kf6 15.Ke4 Kg5 16.Nf3+ Kg4 17.c5 dxc5 18.d6 Ne8 19.Ne5+ Kg5 20.d7 Nf6+ 21.Kd3 Nxd7
 27/43+	00:08	 42 395 869	5 068 850	+0,08	1.Nf2+
 27/43+	00:08	 42 803 956	5 064 358	+0,16	1.Nf2+
 27/43+	00:09	 48 934 777	5 094 719	+0,71	1.Nf2+
 27/53	00:10	 54 706 528	5 077 171	 0,00	1.Nf2+ Kc2 2.Nd3 a3 3.Ne1+ Kc1 4.c4 a2 5.Rc3+ Kb2 6.Kb4 a1Q 7.Nd3+ Kb1 8.Rc1+ Ka2 9.Rxa1+ Kxa1 10.Kc3 h4 11.Kd2 h3 12.Kxe2 h2 13.Nf2 Kb2 14.Kf3 Kc3 15.Kg2 h1Q+ 16.Kxh1 Kxd4 17.Ng4 Nc7 18.f6 exf6 19.Nxf6 Kxc4
 28/38+	00:13	 68 242 393	5 024 103	+0,07	1.Nf2+
 28/46+	00:13	 68 268 747	5 023 824	+0,13	1.Nf2+
 28/65+	00:36	 195 403 547	5 282 890	+5,02	1.Nf2+
 28/72	00:42	 230 292 109	5 378 897	+5,60	1.Nf2+ Kc2 2.Nd3 a3 3.Ne1+ Kc1 4.c4 a2 5.Ra3 Kb2 6.Ra4 h4 7.f6 exf6 8.e7 Nc7 9.Kb6 Ne8 10.c5 dxc5 11.Kxc5 f5 12.d5 h3 13.d6 Nf6 14.Nd3+ Kb3 15.d7 e1Q 16.Nxe1 Nxd7+ 17.Kb5 Nf6 18.Nd3 Nd5 19.Nc1+ Kb2 20.e8Q Nc7+ 21.Kc4 Nxe8 22.Nd3+ Kb1 23.Rb4+ Kc2 24.Rb2+ Kd1 25.Rxa2 Nf6 26.Nf2+ Ke1 27.Nxh3
 29/41+	00:46	 248 296 977	5 331 006	+5,64	1.Nf2+
 29/62+	00:47	 252 067 325	5 328 443	+5,68	1.Nf2+
 29/62+	00:58	 319 481 159	5 444 556	+7,07	1.Nf2+
 29/62	00:59	 324 447 588	5 446 584	+5,62	1.Nf2+ Kc2 2.Nd3 a3 3.Ne1+ Kc1 4.c4 a2 5.Ra3 Kb2 6.Ra4 Nc7 7.f6 exf6 8.e7 Ne8 9.Kb6 Kb3 10.Ra8 f5 11.c5 dxc5 12.Kxc5 h4 13.Rxe8 a1Q 14.Rb8+ Kc3 15.e8Q Qa3+ 16.Kd5 Kd2 17.Qh5 Qa2+ 18.Ke5 Kxe1 19.Qxf5 Kd2 20.Rb1 Qa5+ 21.Kf4 Qc7+ 22.Qe5 Qc3 23.Qe4 Qb3
 30/53+	01:01	 334 157 211	5 446 291	+5,68	1.Nf2+
 30/62+	01:01	 336 453 405	5 450 844	+5,72	1.Nf2+
 30/64+	01:34	 523 809 472	5 557 896	+8,40	1.Nf2+
 30/64-	01:34	 524 167 878	5 557 806	+5,60	1.Nf2+ Kc2
 30/64+	01:34	 525 959 136	5 556 943	+7,44	1.Nf2+
 30/64+	01:43	 581 176 575	5 591 085	+8,94	1.Nf2+
 30/74	01:49	 613 190 734	5 607 238	+6,11	1.Nf2+ Kc2 2.Nd3 a3 3.Ne1+ Kc1 4.c4 a2 5.Ra3 Kb2 6.Ra4 Nc7 7.f6 exf6 8.e7 Ne8 9.Kb6 Kb3 10.Ra8 f5 11.c5 dxc5 12.Kxc5 h4 13.Rxe8 a1Q 14.Rb8+ Kc3 15.e8Q Qa3+ 16.Kd5 Kd2 17.Qh5 Qa2+ 18.Ke5 Kxe1 19.Qxf5 Kd2 20.Rb1 Qa5+ 21.Kf4 Qa3 22.Qe4 h3 23.Kg4 h2 24.Rh1 Qf8 25.Kg3 Qb8+ 26.Kg2 Qc7 27.d5 Qc8 28.d6 Qa8
 31/59+	01:52	 631 279 093	5 608 777	+6,62	1.Nf2+
 31/59+	01:52	 632 495 803	5 608 525	+6,66	1.Nf2+
 31/76+	02:12	 747 658 091	5 655 892	+9,34	1.Nf2+
 31/76-	02:15	 764 393 495	5 655 722	+6,54	1.Nf2+ Kc2
 31/85-	02:19	 788 379 080	5 647 010	+3,82	1.Nf2+ Kc2
 31/112	02:21	 799 943 256	5 647 163	+3,39	1.Nf2+ Kc2 2.Nd3 a3 3.Ne1+ Kc1 4.c4 a2 5.Ra3 Kb2 6.Ra4 Nc7 7.f6 exf6 8.e7 Ne8 9.Kb6 a1Q 10.Nd3+ Kb1 11.Rxa1+ Kxa1 12.c5 dxc5 13.Kxc5 Kb1 14.d5 Kc2 15.Ne1+ Kd2 16.Nf3+ Ke3 17.Nd4 e1N 18.Nc2+ Nxc2 19.d6 Nd4 20.d7 Ne6+ 21.Kc6 N6g7 22.d8Q Kf4 23.Qd3 h4 24.Qg6 Kf3 25.Qh7 Kg4 26.Qh6 Kg3 27.Qd2 Kg4 28.Kd7 Kf5 29.Qc2+ Kg5 30.Qg2+ Kf5 31.Qg1 Kf4 32.Qg6 h3 33.Qh6+ Kg4 34.Kc6 Kg3 35.Qg6+ Kf4 36.Kd7 Kf3 37.Qd3+ Kg4 38.Qc4+ Kg5 39.Qf1 Kg4 40.Qg1+ Kf4 41.Qf2+ Kg4 42.Qh2 f5 43.Kc6 f4 44.Kd5 Nf6+ 45.Kd4
 32/79+	02:24	 813 772 229	5 647 039	+3,43	1.Nf2+
 32/79+	02:24	 815 549 620	5 648 359	+3,47	1.Nf2+
 32/79+	02:24	 818 618 197	5 652 464	+3,62	1.Nf2+
 32/79	02:25	 821 900 150	5 653 966	+3,65	1.Nf2+ Kc2 2.Nd3 a3 3.Ne1+ Kc1 4.c4 a2 5.Ra3 Kb2 6.Ra4 Nc7 7.f6 exf6 8.e7 Ne8 9.Kb6 a1Q 10.Nd3+ Kb1 11.Rxa1+ Kxa1 12.c5 dxc5 13.Kxc5 Kb1 14.d5 Kc2 15.Ne1+ Kd2 16.Nf3+ Ke3 17.Nd4 e1N 18.Nc2+ Nxc2 19.d6 Nd4 20.d7 Ne6+ 21.Kc6 N6g7 22.d8Q Kf4 23.Qd3 h4 24.Qd5 Kg4 25.Qd2 Kf5 26.Qg2 Kf4 27.Qg1 Kf5 28.Kd7 Kf4 29.Qg6 h3 30.Qg1 Kf3 31.Kc6 Kf4 32.Qh2+ Kg4 33.Kd5 Kh4 34.Qf4+ Kh5 35.Qg3 h2
 33/64-	02:29	 848 611 044	5 657 595	+3,87	1.Nf2+ Kc2
 33/64+	02:30	 848 647 396	5 657 611	+3,91	1.Nf2+
 33/82+	02:31	 858 178 860	5 664 958	+4,35	1.Nf2+
 33/85	02:32	 863 834 025	5 667 793	+4,39	1.Nf2+ Kc2 2.Nd3 a3 3.Ne1+ Kc1 4.c4 a2 5.Ra3 Kb2 6.Ra4 Nc7 7.f6 exf6 8.e7 Ne8 9.Kb6 a1R 10.Nd3+ Kb1 11.Rxa1+ Kxa1 12.c5 dxc5 13.Kxc5 Kb1 14.d5 Kc2 15.Ne1+ Kd2 16.Nf3+ Ke3 17.Nd4 e1N 18.Nc2+ Nxc2 19.d6 Nd4 20.d7 Ne6+ 21.Kc6 N6g7 22.d8Q Kf4 23.Qd3 h4 24.Qd5 h3 25.Qd2+ Kg3 26.Qd3+ Kg4 27.Qe4+ Kg3 28.Qg6+ Kf4 29.Qg1 Kf3 30.Kd7 Kf4 31.Qh2+ Kg4 32.Kc6 Nf5 33.Qe2+ Kf4 34.Qf1+ Kg4 35.Qd1+ Kg3 36.Qd3+ Kg4 37.Qe4+ Kg5 38.Kd7 Nfg7 39.Qf3 f5 40.Qg3+ Kf6 41.Qxh3 Kf7 42.Qb3+ Kg6 43.Qc4
 34/78-	02:34	 875 141 530	5 672 056	+4,83	1.Nf2+ Kc2
 34/78+	02:34	 875 391 710	5 672 243	+4,87	1.Nf2+
 34/78+	02:35	 880 060 883	5 674 370	+5,02	1.Nf2+
 34/78	02:35	 880 180 431	5 674 227	+4,81	1.Nf2+ Kc2 2.Nd3 a3 3.Ne1+ Kc1 4.c4 a2 5.Ra3 Kb2 6.Ra4 a1Q 7.Nd3+ Kb1 8.Rxa1+ Kxa1 9.f6 exf6 10.e7 Nc7 11.Kb6 Ne8 12.c5 dxc5 13.Kxc5 Kb1 14.d5 Kc2 15.Ne1+ Kd2 16.Nf3+ Ke3 17.Nd4 e1N 18.Nc2+ Nxc2 19.d6 Nd4 20.d7 Ne6+ 21.Kc6 N6g7 22.d8Q Kf4 23.Qd3 h4 24.Qd5 h3 25.Qd2+ Kg3 26.Qe3+ Kg4 27.Qg1+ Kf5 28.Kd7 Kf4 29.Qh2+ Kg4 30.Kc6 Kh4 31.Qf4+ Kh5 32.Qg3 f5 33.Qxh3+ Kg6 34.Qb3 Nh5 35.Kd7 Nhf6+ 36.Ke6 Ng7+ 37.Kd6 Nge8+ 38.Ke5 Nd7+ 39.Kf4
 35/74+	02:36	 889 885 155	5 674 383	+4,79	1.Nf2+
 35/74+	02:37	 891 534 151	5 676 175	+4,83	1.Nf2+
 35/74+	02:37	 892 959 510	5 676 287	+4,89	1.Nf2+
 35/74	02:37	 894 063 898	5 676 560	+4,87	1.Nf2+ Kc2 2.Nd3 a3 3.Ne1+ Kc1 4.c4 a2 5.Ra3 Kb2 6.Ra4 a1Q 7.Nd3+ Kb1 8.Rxa1+ Kxa1 9.f6 exf6 10.e7 Nc7 11.Kb6 Ne8 12.c5 dxc5 13.Kxc5 Kb1 14.d5 Kc2 15.Ne1+ Kd2 16.Nf3+ Ke3 17.Nd4 e1N 18.Nc2+ Nxc2 19.d6 Nd4 20.d7 Ne6+ 21.Kc6 N6g7 22.d8Q h4 23.Qb8 Kf3 24.Qb4 Kg3 25.Qd4 h3 26.Qe3+ Kg4 27.Qg1+ Kf5 28.Kd7 Kf4 29.Qh2+ Kg4 30.Kc6 f5 31.Kd5 f4 32.Ke5 Nh5 33.Qe2+ Kg5 34.Qf3
 36/76-	02:46	 941 929 868	5 646 316	+4,95	1.Nf2+ Kc2
 36/76-	02:46	 942 609 973	5 646 535	+4,91	1.Nf2+ Kc2
 36/80+	02:47	 943 018 849	5 646 143	+4,95	1.Nf2+
 36/80	02:47	 943 051 410	5 646 169	+4,99	1.Nf2+ Kc2 2.Nd3 a3 3.Ne1+ Kc1 4.c4 a2 5.Ra3 Kb2 6.Ra4 a1R 7.Nd3+ Kb1 8.Rxa1+ Kxa1 9.f6 exf6 10.e7 Nc7 11.Kb6 Ne8 12.c5 dxc5 13.Kxc5 Kb1 14.d5 Kc2 15.Ne1+ Kd2 16.Nf3+ Ke3 17.Nd4 e1N 18.Nc2+ Nxc2 19.d6 Nd4 20.d7 Ne6+ 21.Kc6 N6g7 22.d8Q Kf4 23.Qd3 h4 24.Qg6 Kf3 25.Kd7 Kf4 26.Qg1 Kf5 27.Qg2 Kf4 28.Qg6 h3 29.Qd3 Kg4 30.Qd1+ Kg3 31.Qg1+ Kf4 32.Qh2+ Kg4 33.Kc6 f5 34.Kd5 Nf6+ 35.Kd4 Kg5 36.Qxh3 Kg6 37.Qb3

[Nordlandia]

[d]3bK3/4p1kN/6P1/2p5/5R1R/2n5/8/3q4 w - - 0 0

Key move - 2. Ba5

[d]5r2/NpB3p1/8/8/1r6/1k6/2RK4/1N6 w - - 0 0

Possible dual with a cursed win starting with Nxd2 !?

[d]5rk1/5p2/5R2/6PK/2b1N3/3N4/pQnp3n/8 w - - 0 0

SF don't see 1. Ke2 initially

[d]8/b7/3p2b1/5p1n/5Pk1/4P1p1/B5P1/R4K2 w - - 0 0

SF does not detect 1. Bf8+ at very first

[d]8/3P3p/q1n3rk/2B4P/4rP2/pp6/2PK1QP1/3B4 w - - 0 1

SF does not detect 1. Nh6 to begin with

[d]7k/4pK1p/3p4/B4N2/1p6/3PP3/2P2P2/1b2b3 w - - 0 0

Difficult study for SF by M. Gromov & O. Pervakov

[d]8/N3q2p/p3N3/1P1P3P/8/4k1K1/1P6/4B3 w - - 0 0

SF not so certain at first

[d]1R3B2/5p2/2p2P2/4P3/2p5/b1r3Pk/8/6K1 w - - 0 0

[Jouni]

Difficult study with Crystal

...
1.Bf2+ Kd3 2.b6 Qd6+ 3.Kg4 Kc4 4.b7 Kxd5 5.Nc5 Qh2 6.Nc8 h6 7.Ne7+ Kc4 8.b3+ Kc3 9.Ne4+ Kd3 10.Ng3 Qxf2 11.b8Q Qf7 12.Nef5 Kc3 13.Ne2+ Kb2 14.Ned4 Qd5 15.Qh2+ Ka3 16.Qd2 Qe4+ 17.Kg3 Qe5+ 18.Kh3 Qc5 19.Qxh6 a5 20.Qd2 a4 21.bxa4 Qc4 22.a5
+- (8.38) Depth: 28/71 00:06:22 4560mN, tb=7815171

Nh6 position

1.Nh6 Ba2+ 2.Kf8 Bxf2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 exd4 7.exd4 Bh4 8.d5 Be7+ 9.Kxe7 Kg7 10.Kxd6 Kf6 11.Kc6 Bb3 12.Bc3+ Kg6 13.Ng4 Kg5 14.Ne5 h5 15.d6 Ba4+ 16.Kc7 h4 17.d7 Bxd7
+- (97.66) Depth: 31/56 00:00:14 159mN, tb=1220120

Others are not so clear even for Crystal?

[Vinvin]

Some results from Crystal 3.1 on my old i7-6*4 GHz. It has trouble only with #7 Bf2

1) Nf8
3 runs, around 10 seconds

Code: Select all

FEN: 3bK3/4p1kN/6P1/2p5/5R1R/2n5/8/3q4 w - - 0 1

Crystal3.1-sse4-popcnt:
Found 511 tablebases
NNUE evaluation using nn-62ef826d1a6d.nnue enabled
...
 22/11	00:08	 30 862 391	3 594 920	 0,00	1.Nf8 Nd5 2.Rf7+ Kg8 3.Nd7 Qd3 4.Rf8+ Kg7 5.Rf7+
 23/11	00:12	 46 324 956	3 631 620	 0,00	1.Nf8 Nd5 2.Rf7+ Kg8 3.Nd7 Qd3 4.Rf8+ Kg7 5.Rf7+
 24/11	00:25	 88 495 768	3 425 554	 0,00	1.Nf8 Nd5 2.Rf7+ Kg8 3.Nd7 Qd3 4.Rf8+ Kg7 5.Rf7+
 25/11	00:46	 163 061 030	3 474 040	 0,00	1.Nf8 Nd5 2.Rf7+ Kg8 3.Nd7 Qd3 4.Rf8+ Kg7 5.Rf7+
 26/21+	01:08	 257 980 385	3 751 350	+0,03	1.Nf8
 26/29+	01:09	 262 370 026	3 765 680	+0,08	1.Nf8
 26/33+	01:48	 452 509 797	4 179 765	+28,19	1.Nf8


Crystal3.1-sse4-popcnt:
Found 511 tablebases
NNUE evaluation using nn-62ef826d1a6d.nnue enabled
...

 25/21	00:06	 28 007 229	4 376 129	 0,00	1.Rf7+ Kxg6 2.Nf8+ Kg5 3.Rhh7 Qa4+ 4.Kxd8 Nd5 5.Rhg7+ Kh4 6.Rh7+
 26/25+	00:12	 55 843 288	4 330 615	+0,08	1.Nf8
 26/34+	00:15	 65 203 286	4 337 920	+0,16	1.Nf8
 26/34+	00:50	 233 229 022	4 659 361	+89,90	1.Nf8
 26/44	00:53	 251 195 265	4 676 793	+96,74	1.Nf8 Nd5 2.Rh7+ Kg8 3.Rh8+ Kxh8 4.Kf7 Qh5 5.Rh4 Nf6 6.Rh1 e5 7.Rh2 e4 8.Nd7 Qxh2 9.g7+ Kh7 10.Nxf6+ Kh6 11.Ng4+ Kg5 12.g8Q+ Kf4 13.Nxh2 c4
 27/28+	00:54	 254 284 603	4 679 166	+96,82	1.Nf8
 27/28+	00:54	 254 547 439	4 679 955	+96,92	1.Nf8
 27/28+	00:54	 255 421 057	4 679 841	+97,52	1.Nf8
 27/34	00:57	 271 016 531	4 688 137	+97,67	1.Nf8 Nd5 2.Rh7+ Kg8 3.Rh8+ Kxh8 4.Kf7 Qh5 5.Rh4 Nf6 6.Rh1 e5 7.Rh2 e4 8.Nd7 Qxh2 9.g7+ Kh7 10.Nxf6+ Kh6 11.Ng4+ Kg5 12.g8Q+ Kf4 13.Nxh2 Ba5 14.Qg1 e3 15.Qf1+ Ke5 16.Qa1+ Kd6 17.Qxa5
 28/38	01:04	 299 625 980	4 675 227	+97,69	1.Nf8 Nd5 2.Rh7+ Kg8 3.Rh8+ Kxh8 4.Kf7 Qh5 5.Rh4 Nf6 6.Rh1 e5 7.Rh2 Ba5 8.Nd7 Qxh2 9.g7+ Kh7 10.Nxf6+ Kh6 11.Ng4+ Kg5 12.g8Q+ Kf4 13.Nxh2 Bb4 14.Qg4+ Ke3 15.Qg5+ Kd3 16.Qxe5
 29/42	01:15	 352 943 953	4 665 608	+97,71	1.Nf8 Qd6 2.Rf7+ Kg8 3.g7 Qc6+ 4.Nd7 Qxd7+ 5.Kxd7 Kxf7 6.Rg4 Kg8 7.Kxd8 Nd5 8.Rg5 e5 9.Kd7 Nf4 10.Kd6 e4 11.Ke5 Nh3 12.Rh5 Nf2 13.Kf6 Ng4+ 14.Kg6 Ne5+ 15.Rxe5
 30/32	01:21	 376 915 280	4 652 126	+97,77	1.Nf8 Qd6 2.Rf7+ Kg8 3.g7 Qc6+ 4.Nd7 Qxd7+ 5.Kxd7 Kxf7 6.Rg4 Kg8 7.Kxd8 Nd5 8.Rg5 e5 9.Kd7 Nf4 10.Kd6 Nh3 11.Rg3 Nf2 12.Kxe5
 31/22	01:41	 465 047 004	4 604 015	+97,79	1.Nf8 Qd6 2.Rf7+ Kg8 3.g7 Qc6+ 4.Nd7 Qxd7+ 5.Kxd7 Kxf7 6.Rg4 Kg8 7.Kxd8 Nd5 8.Rg5 e5 9.Kd7 c4 10.Ke6 c3 11.Kxd5

Crystal3.1-sse4-popcnt:
Found 511 tablebases
NNUE evaluation using nn-62ef826d1a6d.nnue enabled
...
 24/11	00:21	 87 320 029	3 984 123	 0,00	1.Nf8 Nd5 2.Rf7+ Kg8 3.Nd7 Qb1 4.Rf8+ Kg7 5.Rf7+
 25/34+	00:25	 102 733 814	4 056 616	+0,03	1.Nf8
 25/34+	00:26	 106 135 861	4 074 313	+0,08	1.Nf8
 25/40+	00:49	 216 342 681	4 397 745	+89,90	1.Nf8
 25/50	00:52	 232 090 422	4 423 466	+97,59	1.Nf8 Nd5 2.Rh7+ Kg8 3.Rh8+ Kxh8 4.Kf7 Qh5 5.Rh4 Nf6 6.Rh1 e6 7.Rh3 e5 8.Rh2 e4 9.Nd7 Qxh2 10.g7+ Kh7 11.Nxf6+ Kh6 12.Ng4+ Kg5 13.g8Q+ Kf4 14.Nxh2 Bc7 15.Qg7 c4 16.Qf6+ Kg3 17.Qg6+ Kf4 18.Nf1 Ke5 19.Qe6+ Kd4 20.Qd7+ Kc3 21.Qxc7
 26/40	00:53	 239 336 390	4 441 367	+97,61	1.Nf8 Nd5 2.Rh7+ Kg8 3.Rh8+ Kxh8 4.Kf7 Qh5 5.Rh4 Nf6 6.Rh1 e5 7.Rh2 Ba5 8.Nd7 Qxh2 9.g7+ Kh7 10.Nxf6+ Kh6 11.Ng4+ Kg5 12.Nxh2 Kf4 13.g8Q Bb4 14.Qg6 e4 15.Qf6+ Ke3 16.Ng4+ Kd2 17.Qf2+ Kc1 18.Qe3+ Kd1 19.Nf2+ Kc2 20.Nxe4
 27/38	00:57	 255 274 010	4 461 896	+97,63	1.Nf8 Nd5 2.Rh7+ Kg8 3.Rh8+ Kxh8 4.Kf7 Qh5 5.Rh4 Nf6 6.Rh1 e5 7.Rh2 Ba5 8.Nd7 Qxh2 9.g7+ Kh7 10.Nxf6+ Kh6 11.Ng4+ Kg5 12.Nxh2 Kf4 13.g8Q Bb4 14.Qg6 e4 15.Qf6+ Ke3 16.Ng4+ Ke2 17.Qf2+ Kd3 18.Qe3+ Kc2 19.Qxe4+
 28/47	01:00	 272 317 255	4 487 759	+97,65	1.Nf8 Nd5 2.Rh7+ Kg8 3.Rh8+ Kxh8 4.Kf7 Qh5 5.Rh4 Nf6 6.Rh1 e5 7.Rh2 Ba5 8.Nd7 Qxh2 9.g7+ Kh7 10.Nxf6+ Kh6 11.Ng4+ Kg5 12.Nxh2 Kf4 13.g8Q Bb4 14.Qg6 e4 15.Qh6+ Ke5 16.Ng4+ Kd4 17.Qe3+ Kc4 18.Qxe4+

2) Rc5
2 runs, found in less than 1 second :

Code: Select all

FEN: 5r2/NpB3p1/8/8/1r6/1k6/2RK4/1N6 w - - 0 1

Crystal3.1-sse4-popcnt:
Found 511 tablebases
NNUE evaluation using nn-62ef826d1a6d.nnue enabled
 1/2	00:00	 1 068	1 068 000	+1,38	1.Rc3+ Kb2
 2/3	00:00	 4 494	2 247 000	+1,00	1.Rc1 Rf2+ 2.Kd3
 3/4	00:00	 5 952	2 976 000	+0,91	1.Rc1 Rf2+ 2.Kd3 Kb2
 4/6	00:00	 9 192	3 064 000	+0,77	1.Rc1 Rc4 2.Rxc4 Kxc4
 5/6	00:00	 14 828	3 707 000	+0,51	1.Rc1 Rc4 2.Rxc4 Kxc4 3.Na3+ Kb3
 6/8	00:00	 19 328	3 221 333	+0,34	1.Rc1 Ra8 2.Kd1 Rd4+ 3.Nd2+ Rxd2+ 4.Kxd2 Rxa7 5.Rc3+ Kb4
 7/10	00:00	 32 064	2 914 909	+0,36	1.Rc1 Rc4 2.Rxc4 Kxc4 3.Kc2 Kc5 4.Nc3
 8/14	00:00	 72 028	2 323 483	+0,63	1.Rc3+ Kb2 2.Na3 Rd4+ 3.Ke3 Kxc3 4.N7b5+ Kb4 5.Kxd4 Kb3 6.Be5 Re8 7.Nc4
 9/22	00:00	 156 640	2 900 740	+1,65	1.Rc5 Rf1 2.Nc3 Rd4+ 3.Ke2 Rf8 4.Nab5 Rc4 5.Re5 Rxc7
 10/22	00:00	 296 899	3 298 877	+2,00	1.Rc5 Rf1 2.Nc3 Rd4+ 3.Ke2 Rf8 4.Nd5 Re8+ 5.Kf3 Rd3+ 6.Kf4 Rd4+ 7.Kf5 Rc4 8.Rb5+ Kc2 9.Kg6 Ree4 10.Kf7 Kd3 11.Rxb7 Ke2
 11/32	00:00	 1 009 349	3 657 061	+2,37	1.Rc5 Rf1 2.Nc3 Rc4 3.Rb5+ Rb4 4.Rg5 Rd4+ 5.Ke2 Rf8 6.Be5 Rd7 7.Nab5 Re8 8.Ke3 Kc4 9.Kf4
 12/24	00:00	 1 700 154	3 899 435	+2,42	1.Rc5 b6 2.Re5 Kb2 3.Nc3 Rd4+ 4.Ke3 Rd7 5.Nd5 Rf1 6.Nb5 Rxc7 7.Nbxc7 Re1+ 8.Kd4 Rxe5 9.Kxe5
 13/36	00:00	 3 293 807	4 190 594	+2,50	1.Rc5 b6 2.Rh5 Rf7 3.Nb5 Rd7+ 4.Ke3 Kc2 5.N1a3+ Kb3 6.Bxb6 Re7+ 7.Kf3 Rf7+ 8.Kg3 g6 9.Rc5 Ka4 10.Rc3
 14/36	00:01	 4 687 478	4 257 473	+2,06	1.Rc5 b6 2.Re5 Rf7 3.Nb5 Rd7+ 4.Ke1 Kc2 5.N1a3+ Kd3 6.Kd1 Re4 7.Rg5 Re6 8.Rg4 Ke3+ 9.Kc1 Rc6+ 10.Nc2+ Kf3 11.Rg3+ Kf2 12.Be5 Rc5 13.Rg5 Rxb5
 15/38	00:01	 5 999 527	4 331 788	+3,03	1.Rc5 b6 2.Re5 Rf7 3.Nb5 Rd7+ 4.Ke1 Kc4 5.N1a3+ Kd3 6.Rf5 Re4+ 7.Kf2 Re2+ 8.Kf3 Re3+ 9.Kg4 Re6 10.Bf4 Rc6 11.Rh5 Ke2 12.Rh2+ Kf1 13.Be3 Rg6+ 14.Kf5 Rg2 15.Rh1+ Ke2 16.Bxb6
 16/40	00:02	 8 980 183	4 391 287	+1,84	1.Rc5 b6 2.Rh5 Rf7 3.Nb5 Rd7+ 4.Ke3 Kc2 5.N1a3+ Kb3 6.Bg3 Ka2 7.Bb8 Rb3+ 8.Ke4 Rb2 9.Rh8 Re2+ 10.Kf3 Re6 11.Nc4 Kb3 12.Ncd6 Re1 13.Nd4+ Kc3
 17/59-	00:03	 15 093 273	4 462 824	+1,71	1.Rc5 Rf1
 17/59-	00:03	 16 123 526	4 455 243	+1,49	1.Rc5 Rf1
 17/59	00:04	 17 814 301	4 442 469	+1,35	1.Rc5 Rf1 2.Nc3 Rd4+ 3.Ke2 Rf7 4.Nd1 Rc4 5.Rb5+ Rb4 6.Bg3 Rxb5 7.Nxb5 Rd7 8.Ne3 Ka4 9.Nd6 b5 10.Nef5 b4 11.Nd4
 18/39+	00:04	 18 642 985	4 438 805	+0,90	1.Rc5
 18/39+	00:04	 18 763 549	4 441 076	+0,95	1.Rc5
 18/44	00:04	 19 359 793	4 434 217	+0,94	1.Rc5 Rf1 2.Nc3 Rd4+ 3.Ke2 Rf7 4.Nd1 Rc4 5.Rb5+ Rb4 6.Bg3 Rxb5 7.Nxb5 Rd7 8.Ne3 Kb4 9.Nd6 Kc5 10.Ndc4 g5 11.Ne5 Rd8 12.N5g4 Kd4 13.Be5+ Ke4 14.Bc3 Kf4 15.Nf6 Rc8
 19/35-	00:04	 20 944 627	4 434 602	+0,98	1.Rc5 Rf1
 19/43-	00:05	 22 794 630	4 419 276	+0,94	1.Rc5 Rf1
 19/58+	00:05	 24 077 493	4 419 510	+0,98	1.Rc5
 19/70	00:05	 24 929 829	4 431 969	+0,94	1.Rc5 Rf1 2.Nc3 Rf7 3.Ne2 Rd7+ 4.Ke3 Rc4 5.Rb5+ Rb4 6.Bg3 Re7+ 7.Re5 Rxe5+ 8.Bxe5 Rh4 9.Kd3 Rh3+ 10.Ng3 Ka4 11.Kd4 Rh4+ 12.Ne4 Rh5 13.Nc3+ Kb4 14.Nd5+ Ka4 15.Bxg7 Rg5 16.Bf6 Rg6 17.Be5 Rg4+ 18.Kc5 Rg5 19.Bd6
 20/58-	00:06	 29 487 590	4 454 991	+0,82	1.Rc5 Rf1
 20/58-	00:07	 31 520 136	4 461 448	+0,78	1.Rc5 Rf1
 20/58+	00:07	 31 934 830	4 467 034	+0,82	1.Rc5
 20/58	00:07	 33 060 706	4 468 870	+0,81	1.Rc5 Rf1 2.Nc3 Rf7 3.Ne2 Rd7+ 4.Ke3 Rc4 5.Rb5+ Rb4 6.Bg3 Re7+ 7.Re5 Rxe5+ 8.Bxe5 Rh4 9.Kd3 Rh3+ 10.Ng3 Ka4 11.Nc8 b5 12.Nb6+ Ka3 13.Kd4 Rh6 14.Nd5 b4 15.Ne3 Rh4+ 16.Kd3 Ka2 17.Ne2 Rh5 18.Bxg7 b3 19.Nc3+ Ka1 20.Kc4
 21/45+	00:08	 36 119 431	4 485 771	+0,80	1.Rc5
 21/63-	00:08	 38 954 515	4 482 682	+0,72	1.Rc5 Rf1
 21/76	00:10	 47 114 134	4 497 340	+0,72	1.Rc5 Rf1 2.Nc3 Rf7 3.Ne2 Rd7+ 4.Ke3 Rc4 5.Rb5+ Rb4 6.Bb8 Re7+ 7.Re5 Rxe5+ 8.Bxe5 Rh4 9.Kd3 Rh3+ 10.Ng3 Kb4 11.Nc8 Kc5 12.Ne7 b5 13.Nef5 Kd5 14.Bf4 b4 15.Ne3+ Kc5 16.Be5 g5 17.Ne4+ Kb5 18.Nf2 Rf3 19.Ke2 g4 20.Ne4 Rh3 21.Nxg4 Ka4 22.Nd2 b3
 22/49+	00:10	 49 052 804	4 504 389	+0,72	1.Rc5
 22/49+	00:10	 49 295 687	4 506 828	+0,76	1.Rc5
 22/49	00:11	 50 067 161	4 508 524	+0,78	1.Rc5 Rf1 2.Nc3 Rf7 3.Ne2 Rd7+ 4.Ke3 Rc4 5.Rb5+ Rb4 6.Nc1+ Kc4 7.Rxb4+ Kxb4 8.Nd3+ Kc3 9.Ba5+ Kc2 10.Ne5 Rd5 11.Bc7 Rc5 12.Bb8 Ra5 13.Nf3 Rh5 14.Nb5 Kb3 15.Nbd4+ Kc4 16.Ke4 Rh8 17.Bd6 Ra8 18.Ne5+ Kc3 19.Nb5+ Kb3
 23/43-	00:13	 59 706 339	4 536 266	+0,85	1.Rc5 Rf1
 23/46-	00:13	 63 155 204	4 535 708	+0,81	1.Rc5 Rf1
 23/64+	00:15	 71 996 571	4 538 933	+0,85	1.Rc5
 23/64+	00:27	 127 335 403	4 554 198	+3,28	1.Rc5

FEN: 5r2/NpB3p1/8/8/1r6/1k6/2RK4/1N6 w - - 0 1

Crystal3.1-sse4-popcnt:
Found 511 tablebases
NNUE evaluation using nn-62ef826d1a6d.nnue enabled
 1/2	00:00	 1 061	1 061 000	+1,38	1.Rc3+ Kb2
 2/3	00:00	 4 390	2 195 000	+0,95	1.Rc1 Rf2+ 2.Kd3
 3/4	00:00	 5 797	2 898 500	+0,90	1.Rc1 Rf2+ 2.Kd3 Kb2
 4/6	00:00	 8 728	4 364 000	+0,81	1.Rc1 Rc4 2.Rxc4 Kxc4
 5/6	00:00	 14 759	4 919 666	+0,47	1.Rc1 Rc4 2.Rxc4 Kxc4 3.Kc2
 6/8	00:00	 20 933	4 186 600	+0,42	1.Rc1 Rc4 2.Rxc4 Kxc4 3.Kc2 Kc5
 7/7	00:00	 28 588	4 084 000	+0,46	1.Rc1 Rc4 2.Rxc4 Kxc4 3.Kc2 Kc5 4.Nc3
 8/16	00:00	 136 962	3 701 675	+2,91	1.Rc5 b6 2.Re5 Rf7 3.Nb5 Rc4 4.Bxb6 Kb2
 9/19	00:00	 225 254	3 754 233	+2,78	1.Rc5 Rf1 2.Ba5 Ra4 3.Nc3 Rd4+ 4.Ke3 Rc4 5.Rb5+ Kc2 6.Ne4
 10/20	00:00	 363 906	4 088 831	+2,96	1.Rc5 Rf1 2.Ba5 Ra4 3.Rb5+ Kc4 4.Nc3 Raa1 5.Bb6 Rae1 6.Rc5+ Kb4 7.Nd5+ Ka4
 11/36	00:00	 857 275	4 464 973	+2,90	1.Rc5 Rf1 2.Ba5 Ra4 3.Rb5+ Kc4 4.Nc3 Raa1 5.Bb6 Rf6 6.Nd5 Ra2+ 7.Ke3 Rc6 8.Ke4
 12/26	00:00	 896 423	4 482 115	+2,51	1.Rc5 Rf1 2.Ba5 Ra4 3.Rb5+ Kc4 4.Nc3 Raa1 5.Bb6 Rh1 6.Rc5+ Kb3 7.Nab5 Rh2+ 8.Ke3 Rh3+ 9.Kd4 Rc1 10.Rc7

3) Rf1 is a clear win.Nxd2 seems about equal.
Score becomes > 2 after one minutes or two.

Code: Select all

FEN: 5rk1/5p2/5R2/6PK/2b1N3/3N4/pQnp3n/8 w - - 0 1

Crystal3.1-sse4-popcnt:
Found 511 tablebases
NNUE evaluation using nn-62ef826d1a6d.nnue enabled
 1/1	00:00	 2 531	126 550	+0,20	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4
 2/2	00:00	 3 004	150 200	+0,20	1.Nxd2 a1Q
 3/3	00:00	 5 271	263 550	+0,20	1.Nxd2 a1Q 2.Qxa1
 4/4	00:00	 8 291	394 809	+0,20	1.Nxd2 a1Q 2.Qxa1 Nxa1
 5/5	00:00	 10 228	487 047	+0,20	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4
 6/6	00:00	 13 259	631 380	+0,31	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Nc2
 7/7	00:00	 16 315	741 590	+0,47	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Nb3 4.Nd6
 8/10	00:00	 25 768	1 030 720	+0,61	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Kg8
 9/17	00:00	 47 045	1 568 166	+1,00	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5
 10/22	00:00	 103 116	1 242 361	+1,03	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Nd6 Rh8+ 5.Rh6 Nf1 6.Ne5 Ng3+ 7.Kg4 Rxh6 8.gxh6+ Kxh6
 11/23	00:00	 214 818	1 167 489	+0,86	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf2 Rxg5+ 8.Kxh2 Nb3 9.Nce5+ Kg7 10.Rxf7+ Kg8 11.Rf4
 12/23	00:00	 337 047	1 216 776	+0,99	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf2 Kxg5 8.Nd6
 13/26	00:00	 457 378	1 277 592	+0,92	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf2 Rxg5+ 8.Kxh2 Nb3 9.Nde5+ Kh7 10.Kh3 Nd4 11.Rxf7+ Kg8
 14/32	00:00	 623 114	1 340 030	+0,78	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf4 Kxg5 8.Ne3 Kh6 9.Rxf7 Nb3 10.Nf4 Re5 11.Ned5 Nd4 12.Kxh2
 15/40	00:01	 1 637 077	1 406 423	+0,74	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf2 Rxg5+ 8.Kxh2 Nb3 9.Nde5+ Kh7 10.Nxf7 Rh5+ 11.Kg2 Nd4 12.Nfd6 Rc5 13.Ne3
 16/38	00:01	 1 866 234	1 444 453	+0,74	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf2 Rxg5+ 8.Kxh2 Nb3 9.Nce5+ Kh7 10.Rxf7+ Kg8 11.Rc7 Nd2 12.Kh3 Ne4 13.Kh4 Rg7 14.Rc4 Nf6
 17/46	00:01	 2 672 233	1 583 076	+0,73	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf2 Rxg5+ 8.Kxh2 Nb3 9.Nce5+ Kh7 10.Rxf7+ Kg8 11.Rc7 Nd4 12.Rc4 Ne6 13.Rh4 Kg7 14.Nf3 Rf5 15.Nde5 Kf6 16.Ng4+ Ke7
 18/45	00:01	 3 339 201	1 726 577	+0,73	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf2 Rxg5+ 8.Kxh2 Nb3 9.Nce5+ Kh7 10.Rxf7+ Kg8 11.Rc7 Nd4 12.Ra7 Nf5 13.Nf3 Rg7 14.Ra5 Nd6 15.Rd5 Nc4 16.Kh1 Ne3 17.Rd8+ Kh7
 19/43-	00:03	 6 532 977	1 976 695	+0,72	1.Nxd2 a1Q
 19/43+	00:03	 6 561 913	1 976 479	+0,76	1.Nxd2
 19/43-	00:03	 7 423 966	1 972 884	+0,68	1.Nxd2 a1Q
 19/63+	00:04	 10 667 438	2 213 620	+0,75	1.Nxd2
 19/63	00:04	 10 675 099	2 213 832	+0,68	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf2 Nf1+ 8.Rxf1 Rxg5+ 9.Kf3 Nb3 10.Nde5+ Kg7 11.Kf4 f6 12.Nf3 Rc5 13.Nd6 Ra5 14.Re1 Ra4+ 15.Kg3 Nc5 16.Re7+ Kh6 17.Rc7 Ne4+ 18.Nxe4 Rxe4
 20/52-	00:05	 12 234 663	2 303 212	+0,56	1.Nxd2 a1Q
 20/52+	00:05	 13 666 919	2 367 796	+0,61	1.Nxd2
 20/52	00:05	 13 706 440	2 368 078	+0,60	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf2 Nf1+ 8.Rxf1 Rxg5+ 9.Kf3 Nb3 10.Nde5+ Kf6 11.Ke4+ Ke6 12.Re1 f6 13.Nf3 Rd5 14.Rb1 Nc5+ 15.Ke3 Kf7 16.Rb5 Kg8 17.Rb6 Kf7 18.Nd4 Rh5 19.Nd6+ Kg6
 21/53+	00:06	 15 203 192	2 419 349	+0,63	1.Nxd2
 21/53-	00:06	 15 765 738	2 457 253	+0,55	1.Nxd2 a1Q
 21/53+	00:06	 15 837 442	2 461 906	+0,62	1.Nxd2
 21/53	00:06	 17 028 340	2 529 086	+0,65	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf2 Nf1+ 8.Rxf1 Rxg5+ 9.Kf3 Nb3 10.Nde5+ Kf6 11.Ng4+ Ke7 12.Kf4 Rd5 13.Re1+ Kd8 14.Nge3 Rd4+ 15.Kf5 Kc7 16.Ne5 Ra4 17.Rh1 Nd4+ 18.Kf6 Ra6+ 19.Kxf7 Nc6 20.Nd5+ Kd6 21.Nxc6
 22/53-	00:07	 20 722 239	2 680 755	+0,66	1.Nxd2 a1Q
 22/53+	00:07	 21 248 162	2 702 984	+0,70	1.Nxd2
 22/53-	00:07	 21 481 765	2 713 371	+0,62	1.Nxd2 a1Q
 22/90+	00:08	 21 952 386	2 731 415	+0,69	1.Nxd2
 22/90	00:08	 22 068 360	2 736 312	+0,68	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf2 Nf1+ 8.Rxf1 Rxg5+ 9.Kf3 Nb3 10.Nde5+ Kf5 11.Nxf7 Rh5 12.Kg3+ Ke6 13.Kg4 Rc5 14.Ng5+ Kd5 15.Ne3+ Kc6 16.Rf8 Nd4 17.Rg8 Ra5 18.Kf4 Kc7 19.Ke4 Nc6 20.Ne6+ Kd7
 23/55-	00:08	 23 938 125	2 785 770	+0,62	1.Nxd2 a1Q
 23/57-	00:08	 24 864 437	2 798 788	+0,58	1.Nxd2 a1Q
 23/64+	00:09	 25 831 984	2 825 329	+0,62	1.Nxd2
 23/64	00:09	 25 936 773	2 829 671	+0,61	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf2 Nf1+ 8.Rxf1 Rxg5+ 9.Kf3 Nb3 10.Nde5+ Kf5 11.Nxf7 Rh5 12.Kg3+ Ke6 13.Kg4 Rc5 14.Ng5+ Kd5 15.Ne3+ Kd4 16.Nf5+ Kc4 17.Rf4+ Kb5 18.Kh5 Rc1 19.Nf3 Nc5 20.N5d4+ Kb6 21.Rf6+ Kb7
 24/54+	00:34	 97 589 597	2 835 588	+0,63	1.Rf1
 24/54+	00:39	 113 099 262	2 899 758	+0,72	1.Rf1
 24/54+	03:07	 690 762 929	3 685 700	+11,22	1.Rf1

FEN: 5rk1/5p2/5R2/6PK/2b1N3/3N4/pQnp3n/8 w - - 0 1

Crystal3.1-sse4-popcnt:
Found 511 tablebases
NNUE evaluation using nn-62ef826d1a6d.nnue enabled
 1/1	00:00	 2 470	2 470 000	+0,20	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4
 2/2	00:00	 3 091	3 091 000	+0,20	1.Nxd2 a1Q
 3/3	00:00	 5 214	2 607 000	+0,20	1.Nxd2 a1Q 2.Qxa1
 4/4	00:00	 8 163	4 081 500	+0,20	1.Nxd2 a1Q 2.Qxa1 Nxa1
 5/5	00:00	 10 052	5 026 000	+0,20	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4
 6/6	00:00	 13 285	4 428 333	+0,31	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Nc2
 7/7	00:00	 16 980	5 660 000	+0,47	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Nb3 4.Nd6
 8/12	00:00	 23 612	5 903 000	+0,45	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Nd6 Rh8+ 5.Rh6 Rxh6+ 6.gxh6+ Kf8
 9/13	00:00	 31 991	4 570 142	+0,43	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Nd6 Rh8+ 5.Rh6 Rxh6+ 6.gxh6+ Kg8 7.h7+ Kxh7
 10/18	00:00	 63 411	2 642 125	+0,46	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Nc2 5.Kg3 Rd8 6.Nd6 Nf1+ 7.Kh4
 11/20	00:00	 120 723	2 743 704	+0,71	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf4 Nb3 7.Nd6 Rxg5+ 8.Kxh2 Kg6 9.Kh3
 12/26	00:00	 223 525	3 104 513	+0,74	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf2 Nb3 7.Rxh2 Rxh2 8.Kxh2 f6 9.g6 Kxg6
 13/40	00:00	 934 048	4 344 409	+0,62	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf2 Rxg5+ 8.Kxh2 Nb3 9.Nde5+ Kh7 10.Rxf7+ Kg8 11.Kh3 Nd4 12.Rf4 Ne6 13.Rf6 Nd4 14.Ra6 Kh7 15.Ng4
 14/46	00:00	 2 452 197	4 609 392	+0,79	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf2 Rxg5+ 8.Kxh2 Nb3 9.Nce5+ Kg7 10.Rxf7+ Kg8 11.Rc7 Nd4 12.Kh3 Ne6
 15/31	00:00	 2 461 972	4 610 434	+0,81	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf2 Rxg5+ 8.Kxh2 Nb3 9.Nce5+ Kg7 10.Rxf7+ Kg8 11.Rc7 Nd4 12.Kh3 Ne6 13.Re7 Nd4 14.Rb7 Nf5 15.Nf4 Rg3+ 16.Kh2
 16/54	00:00	 2 948 281	4 642 962	+0,81	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf2 Rxg5+ 8.Kxh2 Nb3 9.Nce5+ Kg7 10.Rxf7+ Kg8 11.Rc7 Nd4 12.Kh3 Nf5 13.Nf4 Ne3
 17/38	00:00	 3 126 396	4 645 462	+0,79	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf2 Rxg5+ 8.Kxh2 Nb3 9.Nce5+ Kg7 10.Rxf7+ Kg8 11.Rc7 Nd4 12.Kh3 Nf5 13.Nf4 Ne3 14.Rc8+ Kh7 15.Re8 Rf5 16.Kg3
 18/50	00:01	 5 909 923	4 577 786	+0,66	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf2 Rxg5+ 8.Kxh2 Nb3 9.Nce5+ Kg7 10.Rxf7+ Kg8 11.Rc7 Nd4 12.Kh3 Nf5 13.Nf4 Rg3+ 14.Kh2 Rg7 15.Rc8+ Kh7 16.Nf3 Rg8
 19/42	00:01	 6 918 825	4 501 512	+0,57	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf2 Nf1+ 8.Rxf1 Rxg5+ 9.Kf3 Nb3 10.Nde5+ Kf6 11.Ke2+ Ke6 12.Nf3 Rd5 13.Ke3 Rc5 14.Kd3 Rh5 15.Rb1 Nc5+ 16.Ke3 Kd5 17.Ncd2 Kd6 18.Ne4+ Nxe4
 20/64	00:02	 12 596 413	4 336 114	+0,60	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf2 Nf1+ 8.Rxf1 Rxg5+ 9.Kf3 Nb3 10.Nde5+ Kf5 11.Ke3+ Ke6 12.Nf3 Rc5 13.Kd3 Rd5+ 14.Kc3 Nc5 15.Nd4+ Ke7 16.Ne3 Rg5 17.Ndf5+ Kf6 18.Kc4 Ne6 19.Nd5+ Kg6 20.Nd6 Rg4+ 21.Kb5 Nd4+ 22.Kb6 f5 23.Nc4
 21/47-	00:03	 13 250 588	4 333 089	+0,59	1.Nxd2 a1Q
 21/50-	00:03	 15 435 265	4 343 068	+0,55	1.Nxd2 a1Q
 21/50+	00:03	 15 937 072	4 337 798	+0,59	1.Nxd2
 21/87	00:04	 18 813 736	4 266 153	+0,56	1.Nxd2 a1Q 2.Qxa1 Nxa1 3.Nxc4 Kg7 4.Kh4 Rh8+ 5.Kg3 Rh5 6.Rf5 Kg6 7.Rf2 Nf1+ 8.Rxf1 Rxg5+ 9.Kf3 Nb3 10.Rb1 Nc5 11.Nde5+ Kh7 12.Ke3 Kg7 13.Nf3 Rd5 14.Rb5 Kf6 15.Nb6 Rd6 16.Nd2 Kg7 17.Ndc4
 22/44-	00:05	 23 440 570	4 185 816	+0,44	1.Nxd2 a1Q
 22/57+	00:09	 37 819 876	4 110 856	+0,48	1.Nxd2
 22/66+	00:09	 38 478 883	4 106 166	+0,54	1.Nxd2
 22/100+	00:18	 78 271 821	4 316 302	+0,78	1.Rf1
 22/100+	01:00	 285 394 673	4 731 187	+5,19	1.Rf1

4) Ke2
very easy for Crystal : 10 to 20 seconds

Code: Select all

FEN: 8/b7/3p2b1/5p1n/5Pk1/4P1p1/B5P1/R4K2 w - - 0 1

Crystal3.1-sse4-popcnt:
Found 511 tablebases
NNUE evaluation using nn-62ef826d1a6d.nnue enabled
...
 25/52	00:16	 77 646 694	4 622 927	-4,60	1.Bf7 Bxf7 2.Rxa7 Bc4+ 3.Kg1 d5 4.Rc7 Nf6 5.Rg7+ Kh5 6.Rxg3 Ng4 7.Rh3+ Kg6 8.Rh8 Kf7 9.Rb8 Nxe3 10.Kf2 d4 11.Rb6 Nd5 12.Rc6 Bd3 13.Rd6 Be4 14.g3 d3 15.Ra6 Ke7 16.Rg6
 26/40-	00:17	 79 838 287	4 663 996	-4,76	1.Bf7 Bxf7
 26/40-	00:18	 87 498 814	4 645 050	-4,81	1.Bf7 Bxf7
 26/56+	00:18	 87 845 289	4 646 669	-4,71	1.Bf7
 26/56+	00:19	 92 459 299	4 662 832	-4,52	1.Ke2
 26/56+	00:21	 98 525 169	4 507 716	-2,23	1.Ke2
 26/79	00:23	 102 528 864	4 454 290	-1,74	1.Ke2 Bxe3 2.Kxe3 Nxf4 3.Rg1 Nxg2+ 4.Rxg2 f4+ 5.Ke2 f3+ 6.Kf1 fxg2+ 7.Kg1 Be4 8.Be6+ Kg5 9.Ba2 Bf5 10.Bd5 Kf4 11.Ba8 Bc8 12.Bb7 Be6 13.Bc6 Ke5 14.Ba8 Kd4 15.Bc6 Bd5 16.Bd7 Kc5 17.Bc6 Bc4 18.Be8 Bb5 19.Bg6 Bc6 20.Be4 Bd5 21.Bc2 Kd4 22.Bg6 Bc6 23.Bf7 Ke5 24.Bh5 Be4 25.Bf7 Ba8 26.Be6 Bd5 27.Bd7
 27/27+	00:23	 103 410 678	4 451 025	-1,69	1.Ke2
 27/27+	00:23	 103 617 949	4 452 090	-1,65	1.Ke2
 27/93+	00:31	 135 315 722	4 356 170	-0,26	1.Ke2
 27/93	00:36	 157 398 500	4 276 668	-0,08	1.Ke2 Bxe3 2.Kxe3 Nxf4 3.Rg1 Nxg2+ 4.Rxg2 f4+ 5.Ke2 f3+ 6.Kf1 Bd3+ 7.Kg1 fxg2 8.Bd5 Bf5 9.Ba8 Kf4 10.Bd5 Ke5 11.Bc6 Be4 12.Bb7 Kd4 13.Bc6 Bd5 14.Be8 Kc5 15.Bc6 Bc4 16.Be8 Bb5 17.Bg6 Bf1 18.Bf7 Kd4 19.Be8 Kd5 20.Bc6+ Ke5 21.Bb7 Bb5 22.Bc6 Bc4 23.Bb7 Bf7 24.Bc6 Bd5 25.Be8 Bf3 26.Bc6 Bd1 27.Bb7 Bh5 28.Bc6 Bf7 29.Ba4 Kf4 30.Bc6 Be6 31.Ba8 Ke3 32.Bc6 Kd4 33.Bb5 Bh3 34.Bc6 Kc5 35.Be4 Be6 36.Bc2 Bd5 37.Bf5 Kb5 38.Bd3+ Kb4
 28/55-	00:37	 159 060 971	4 270 322	-0,12	1.Ke2 Bxe3
 28/55+	00:38	 162 381 889	4 222 976	-0,08	1.Ke2
 28/55	00:44	 185 573 940	4 170 388	-0,06	1.Ke2 Bxe3 2.Kxe3 Nxf4 3.Rg1 Be8 4.Bb3 Nxg2+ 5.Rxg2 f4+ 6.Ke2 f3+ 7.Kf1 fxg2+ 8.Kg1 Bd7 9.Bd5 Kf5 10.Bf3 Be6 11.Ba8 Bc4 12.Bf3 Ke5 13.Bc6 Bd3 14.Ba8 Kd4 15.Bb7 Bf1 16.Bc6 Kc5 17.Be4 Bc4 18.Bh7 Bd5 19.Bg6 Kd4 20.Be8 Ke5 21.Bc6 Be4 22.Bb7
 29/47	00:46	 193 329 108	4 175 664	-0,02	1.Ke2 Bxe3 2.Kxe3 Nxf4 3.Rg1 Nxg2+ 4.Rxg2 f4+ 5.Ke2 f3+ 6.Kf1 fxg2+ 7.Kg1 Bd3 8.Bd5 Kf4 9.Bc6 Be4 10.Ba8 Ke3 11.Bc6

FEN: 8/b7/3p2b1/5p1n/5Pk1/4P1p1/B5P1/R4K2 w - - 0 1

Crystal3.1-sse4-popcnt:
Found 511 tablebases
NNUE evaluation using nn-62ef826d1a6d.nnue enabled
...
 25/67+	00:11	 70 225 672	5 858 486	-4,61	1.Ke2
 25/67+	00:12	 70 827 121	5 837 079	-0,62	1.Ke2
 25/73	00:14	 80 763 076	5 523 394	-0,08	1.Ke2 Bxe3 2.Kxe3 Nxf4 3.Rg1 Be8 4.Bb3 Nxg2+ 5.Rxg2 f4+ 6.Ke2 f3+ 7.Kf1 fxg2+ 8.Kg1 Kf5 9.Bd5 Ke5 10.Ba8 Bg6 11.Bc6 Kd4 12.Ba8 Bd3 13.Bb7 Bc4 14.Bc6 Bf1 15.Ba4 Ke3 16.Bc6 Bd3 17.Ba8 Bf5 18.Bd5 Bc2 19.Bc6 Kd4 20.Be8 Be4 21.Bc6 Bh7 22.Bd7 Ke3 23.Bc6 Bc2 24.Bd5 Kd4 25.Bc6 Kc5 26.Be4 Ba4 27.Bh7 Bc6
 26/47	00:16	 89 144 843	5 445 955	-0,07	1.Ke2 Bxe3 2.Kxe3 Nxf4 3.Rg1 d5 4.Kd2 Be8 5.Bb3 Kg5 6.Re1 Bg6 7.Rg1 Bh5 8.Ba4 Kf6 9.Bc6 Bf7 10.Rb1 Nxg2 11.Rg1 Nh4 12.Rxg3 f4 13.Rh3 Nf5 14.Ba8 Ke5 15.Rh8 Ne3 16.Rf8
 27/46-	00:16	 90 962 706	5 409 295	-0,10	1.Ke2 Bxe3
 27/46-	00:16	 90 989 265	5 408 944	-0,14	1.Ke2 Bxe3
 27/46+	00:16	 91 039 969	5 406 494	-0,10	1.Ke2
 27/53	00:17	 92 056 863	5 391 008	-0,10	1.Ke2 Bxe3 2.Kxe3 Nxf4 3.Rg1 Be8 4.Bb3 Nxg2+ 5.Rxg2 f4+ 6.Ke2 f3+ 7.Kf1 fxg2+ 8.Kg1 Kf5 9.Bd5 Ke5 10.Ba8 Bf7 11.Bc6 Bc4 12.Bd7 Bd5 13.Bb5 Kd4 14.Bd7 Be4 15.Bc6 Bg6 16.Ba8 Bf5 17.Bc6 Be6 18.Bb5 Kc5 19.Ba4 Bd5 20.Bc6 Bc4 21.Be8 Bb5 22.Bg6 Bc6 23.Be4 Bd5 24.Bf5 Bb7 25.Bc2
 28/71	00:18	 100 596 895	5 320 897	-0,11	1.Ke2 Bxe3 2.Kxe3 Nxf4 3.Rg1 Be8 4.Bb3 Nxg2+ 5.Rxg2 f4+ 6.Ke2 f3+ 7.Kf1 fxg2+ 8.Kg1 Kf5 9.Bd5 Ke5 10.Ba8 Bf7 11.Bc6 Bc4 12.Bd7 Bd3 13.Bc6 Be4 14.Bd5 Kd4 15.Bc6 Bf5 16.Ba4 Ke5 17.Bc6 Bd3 18.Ba8 Bc4 19.Bc6 Kd4 20.Ba4 Ke3 21.Bc6 Bd3 22.Ba8 Bg6 23.Bd5 Be4 24.Bb7 Bf5 25.Ba8 Kd4 26.Bc6 Be4 27.Bd5 Bd3 28.Bb7 Bc4
 29/65+	00:25	 128 788 600	5 139 004	-0,03	1.Ke2
 29/65	00:25	 130 154 641	5 135 926	-0,03	1.Ke2 Bxe3 2.Kxe3 Nxf4 3.Rg1 Be8 4.Bb3 Nxg2+ 5.Rxg2 f4+ 6.Ke2 f3+ 7.Kf1 fxg2+ 8.Kg1 Kf5 9.Bd5 Bb5 10.Bc6 Bc4 11.Bb7 Ke5 12.Bc6
 30/33	00:26	 137 177 856	5 121 634	 0,00	1.Ke2 Bxe3 2.Kxe3 Nxf4 3.Rg1 Be8 4.Bb3 Nxg2+ 5.Rxg2 f4+ 6.Ke2 f3+ 7.Kf1 fxg2+ 8.Kg1 Kf5 9.Bd5 Bb5 10.Bc6 Bc4 11.Bb7 Ke5 12.Bc6
 31/33	00:28	 144 175 919	5 074 472	 0,00	1.Ke2 Bxe3 2.Kxe3 Nxf4 3.Rg1 Be8 4.Bb3 Nxg2+ 5.Rxg2 f4+ 6.Ke2 f3+ 7.Kf1 fxg2+ 8.Kg1 Kf5 9.Bd5 Bb5 10.Bc6 Bc4 11.Bb7 Ke5 12.Bc6
 32/33	00:31	 156 879 824	4 993 151	 0,00	1.Ke2 Bxe3 2.Kxe3 Nxf4 3.Rg1 Be8 4.Bb3 Nxg2+ 5.Rxg2 f4+ 6.Ke2 f3+ 7.Kf1 fxg2+ 8.Kg1 Kf5 9.Bd5 Bb5 10.Bc6 Bc4 11.Bb7 Ke5 12.Bc6
 33/66	00:39	 191 969 711	4 815 615	 0,00	1.Ke2 Bxe3 2.Kxe3 Nxf4 3.Rg1 Be8 4.Bb3 Nxg2+ 5.Rxg2 f4+ 6.Ke2 f3+ 7.Kf1 fxg2+ 8.Kg1 Kf5 9.Bd5 Bb5 10.Bc6 Bc4 11.Bb7 Ke5 12.Bc6
 34/33	00:45	 215 864 427	4 750 955	 0,00	1.Ke2 Bxe3 2.Kxe3 Nxf4 3.Rg1 Be8 4.Bb3 Nxg2+ 5.Rxg2 f4+ 6.Ke2 f3+ 7.Kf1 fxg2+ 8.Kg1 Kf5 9.Bd5 Bb5 10.Bc6 Bc4 11.Bb7 Ke5 12.Bc6
 35/33	00:50	 238 598 070	4 733 994	 0,00	1.Ke2 Bxe3 2.Kxe3 Nxf4 3.Rg1 Be8 4.Bb3 Nxg2+ 5.Rxg2 f4+ 6.Ke2 f3+ 7.Kf1 fxg2+ 8.Kg1 Kf5 9.Bd5 Bb5 10.Bc6 Bc4 11.Bb7 Ke5 12.Bc6
 36/32	00:55	 262 581 631	4 717 261	 0,00	1.Ke2 Bxe3 2.Kxe3 Nxf4 3.Rg1 Be8 4.Bb3 Nxg2+ 5.Rxg2 f4+ 6.Ke2 f3+ 7.Kf1 fxg2+ 8.Kg1 Kf5 9.Bd5 Bg6 10.Ba8 Kg5 11.Bb7 Kf4 12.Bc6 Be4 13.Bd5 Ke3 14.Ba8 Bf5 15.Bc6 Kf4
 37/24	01:23	 385 469 277	4 601 134	 0,00	1.Ke2 Bxe3 2.Kxe3 Nxf4 3.Rg1 Be8 4.Bb3 Nxg2+ 5.Rxg2 f4+ 6.Ke2 f3+ 7.Kf1 fxg2+ 8.Kg1 Kf5 9.Bd5 Bg6 10.Ba8 Kg5 11.Bb7 Kf5
 38/29	01:32	 422 099 296	4 584 896	 0,00	1.Ke2 Bxe3 2.Kxe3 Nxf4 3.Rg1 Be8 4.Bb3 Nxg2+ 5.Rxg2 f4+ 6.Ke2 f3+ 7.Kf1 fxg2+ 8.Kg1 Kf5 9.Bd5 Bg6 10.Ba8 Kf4 11.Bd5
 39/29	01:40	 460 813 889	4 567 759	 0,00	1.Ke2 Bxe3 2.Kxe3 Nxf4 3.Rg1 Be8 4.Bb3 Nxg2+ 5.Rxg2 f4+ 6.Ke2 f3+ 7.Kf1 fxg2+ 8.Kg1 Kf5 9.Bd5 Bg6 10.Ba8 Kf4 11.Bd5
 40/25	02:02	 562 191 293	4 574 714	 0,00	1.Ke2 Bxe3 2.Kxe3 Nxf4 3.Rg1 Be8 4.Bb3 Nxg2+ 5.Rxg2 f4+ 6.Ke2 f3+ 7.Kf1 fxg2+ 8.Kg1 Kf5 9.Bd5 Bg6 10.Ba8 Kf4 11.Bd5

5) Bf8+
Found is a couple of seconds

6) Nh6
Found in a couple of seconds

Code: Select all

FEN: 7k/4pK1p/3p4/B4N2/1p6/3PP3/2P2P2/1b2b3 w - - 0 1

Crystal3.1-sse4-popcnt:
Found 511 tablebases
NNUE evaluation using nn-62ef826d1a6d.nnue enabled
...
 15/25	00:00	 1 412 323	1 997 628	-0,45	1.Kxe7 h5 2.Nd4 h4 3.Nf3 h3 4.Kxd6 Bxc2 5.Kc5 Bxf2 6.Bxb4 Bg3 7.Bc3+ Kg8 8.Kd5 Bb3+ 9.Ke4 Ba4 10.Kd5 Bd7 11.Be5 Bc6+ 12.Kxc6
 16/38	00:01	 3 040 079	1 849 196	 0,00	1.Nh6 Ba2+ 2.Kf8 Bxf2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Nf5 Bh2 7.Nxd6 h5 8.dxe5 Kh7 9.Nf5 Bb1 10.Nh4 Bg3 11.Nf3 Ba2 12.e6 Bxe6 13.Ng5+ Kg6 14.Nxe6 h4 15.Nd4
 17/30	00:01	 3 151 656	1 870 418	+0,20	1.Nh6 Ba2+ 2.Kf8 Bxf2 3.c4 bxc3 4.Bxc3+ e5 5.Bd2 Bh4 6.e4 Bf6 7.Nf7+ Bxf7 8.Kxf7 Bg7 9.Bg5 h6 10.Be7 h5 11.Kg6 Kg8 12.Bd8 Bh8 13.Bc7 h4 14.Bxd6
 18/40	00:02	 4 034 742	1 814 998	+0,23	1.Nh6 Ba2+ 2.Kf8 Bxf2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Nf5 Bh2 7.Nxd6 h5 8.dxe5 Kh7 9.Nf5 Bg1 10.Bd4 Kg6 11.Nh4+ Kh6 12.Ke7 Bf2 13.Ng2 Kg5 14.e6 h4 15.Nf4 Bg3 16.Ne2
 19/37	00:02	 5 118 635	1 946 989	+0,03	1.Nh6 Ba2+ 2.Kf8 Bxf2 3.c4 bxc3 4.Bxc3+ e5 5.Bd2 Bh4 6.e4 Bf6 7.Nf7+ Bxf7 8.Kxf7 Bg7 9.Bg5 h6 10.Bh4 Kh7 11.Ke7 h5 12.Kxd6 Kg6 13.Bd8 Bf6 14.Bxf6 Kxf6
 20/21+	00:03	 6 785 274	2 237 149	+3,26	1.Nh6
 20/21+	00:03	 7 276 556	2 313 690	+4,19	1.Nh6
 20/47+	00:03	 8 604 779	2 431 415	+8,77	1.Nh6
 20/47	00:03	 8 816 607	2 447 697	+7,97	1.Nh6 Ba2+ 2.Kf8 Bxf2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 exd4 7.exd4 Bh4 8.d5 Be7+ 9.Kxe7 Kg7 10.Kxd6 Kf6 11.Bc3+ Kg6 12.Ng8 h5 13.Ne7+ Kf7 14.Nf5 Kg6 15.Nh4+ Kf7 16.Bd2 Bb3 17.Kc5 Bd1 18.Nf5 Ke8 19.Nd6+ Kd8
 21/45+	00:03	 9 055 558	2 454 080	+8,00	1.Nh6
 21/45+	00:03	 9 063 222	2 454 827	+8,05	1.Nh6
 21/45+	00:03	 9 417 362	2 507 952	+9,00	1.Nh6
 21/45-	00:03	 9 449 206	2 511 750	+7,92	1.Nh6 Bxf2
 21/45+	00:03	 9 452 380	2 511 926	+8,31	1.Nh6
 21/45-	00:03	 9 621 494	2 529 309	+7,64	1.Nh6 Bxf2
 21/45+	00:03	 9 622 617	2 529 604	+8,21	1.Nh6
 21/45	00:03	 9 632 371	2 530 838	+8,46	1.Nh6 Bxf2 2.Kf8 Ba2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 exd4 7.exd4 Bh4 8.d5 Be7+ 9.Kxe7 Kg7 10.Kxd6 Kf6 11.Bc3+ Kg6 12.Ng8 h5 13.Kc7 Kf7 14.d6 Be6 15.Ne7 h4 16.d7 Bg4 17.d8Q
 22/37+	00:03	 9 710 425	2 537 346	+8,99	1.Nh6
 22/37+	00:03	 9 767 988	2 544 409	+9,03	1.Nh6
 22/47+	00:04	 11 874 742	2 744 336	+10,99	1.Nh6
 22/47	00:04	 12 080 489	2 754 329	+10,72	1.Nh6 Ba2+ 2.Kf8 Bxf2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 exd4 7.exd4 Bh4 8.d5 Be7+ 9.Kxe7 Kg7 10.Kxd6 Bb3 11.Ke6 Bc4 12.Ng4 h5 13.Ne5 Ba2 14.Bg5 Kg8 15.Nd3 Bb3 16.Nf4 Kg7 17.Bh4 Kg8
 23/39+	00:04	 12 221 133	2 754 989	+10,75	1.Nh6
 23/39+	00:04	 12 230 030	2 755 752	+10,80	1.Nh6
 23/40+	00:05	 15 044 215	2 982 596	+12,19	1.Nh6
 23/44-	00:05	 15 862 526	2 998 587	+10,65	1.Nh6 Bxf2
 23/44+	00:05	 15 876 674	3 000 127	+11,20	1.Nh6
 23/44+	00:06	 22 036 010	3 395 902	+13,80	1.Nh6
 23/48	00:06	 23 596 904	3 419 841	+13,66	1.Nh6 Bxf2 2.Kf8 Ba2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 Bh4 7.d5 Be7+ 8.Kxe7 Kg7 9.e4 Kg6 10.Kxd6 Kf6 11.Ng4+ Kg7 12.Nxe5 h5 13.Nf3 h4 14.e5 Kf7 15.Nxh4 Bb1 16.Kd7 Kg7 17.e6 Bd3 18.Kd6
 24/44+	00:06	 23 774 487	3 422 266	+13,70	1.Nh6


FEN: 7k/4pK1p/3p4/B4N2/1p6/3PP3/2P2P2/1b2b3 w - - 0 1

Crystal3.1-sse4-popcnt:
Found 511 tablebases
NNUE evaluation using nn-62ef826d1a6d.nnue enabled
...
 14/22	00:00	 868 823	3 744 926	-0,28	1.Nd4 h5 2.Kxe7 h4 3.Bc7 h3 4.Bxd6 Kg8 5.Kf6 Bxf2 6.Kf5 Bxe3 7.Nf3 Bxc2 8.Bxb4 Bxd3+ 9.Kg4
 15/27	00:00	 1 706 602	3 861 090	 0,00	1.Nh6 Ba2+ 2.Kf8 Bxf2 3.Bxb4 Bxe3 4.Nf5 Bf4 5.Kxe7 h5 6.Bxd6 Bxd6+ 7.Kxd6 Bb1 8.c4 Bxd3
 16/25	00:00	 2 405 134	3 929 957	+0,15	1.Nh6 Ba2+ 2.Kf8 Bxf2 3.c4 bxc3 4.Bxc3+ e5 5.Bd2 Bh4 6.e4 Bf6 7.Nf7+ Bxf7 8.Kxf7 Bg7 9.Bg5 h5 10.Kg6 Bf8 11.Bh4 Kg8 12.Kxh5 Kf7
 17/62	00:00	 3 914 048	4 060 215	+9,23	1.Nh6 Ba2+ 2.Kf8 Bxf2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 exd4 7.exd4 Bh4 8.d5 Be7+ 9.Kxe7 Kg7 10.Kxd6 Kf6 11.Be3 Kg6 12.Ng4 Bc4 13.Bd2 Bb3
 18/39	00:01	 4 196 193	4 105 863	+8,81	1.Nh6 Ba2+ 2.Kf8 Bxf2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 exd4 7.exd4 Bh4 8.d5 Be7+ 9.Kxe7 Kg7 10.Kxd6 Kf6 11.Bc3+ Kg6 12.Ng8 h5 13.Ne7+ Kf7 14.Nf5 Kg6 15.Ke5 Bb1 16.Ne3 Kf7 17.d6 Ke8
 19/39	00:01	 4 314 213	4 144 296	+8,58	1.Nh6 Ba2+ 2.Kf8 Bxf2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 exd4 7.exd4 Bh4 8.d5 Be7+ 9.Kxe7 Kg7 10.Kxd6 Kf6 11.Bc3+ Kg6 12.Ng8 h5 13.Ne7+ Kf7 14.Nf5 Kg6 15.Ke5 Bb1 16.Ne3 Kf7 17.d6 h4 18.d7 Ke7
 20/41	00:01	 4 693 603	4 190 716	+8,61	1.Nh6 Ba2+ 2.Kf8 Bxf2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 exd4 7.exd4 Bh4 8.d5 Be7+ 9.Kxe7 Kg7 10.Kxd6 Kf6 11.Bc3+ Kg6 12.Ng8 h5 13.Ne7+ Kf7 14.Be1 Bb1 15.Nc8 Ba2 16.Ke5 Ke8 17.Nb6 Bb3 18.Bf2 Kf7 19.d6
 21/43	00:01	 5 103 609	4 242 401	+8,39	1.Nh6 Bxf2 2.Kf8 Ba2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 exd4 7.exd4 Bh4 8.d5 Be7+ 9.Kxe7 Kg7 10.Kxd6 Kf6 11.Bc3+ Kg6 12.Ng8 h5 13.Ne7+ Kf7 14.Be1 Bb3 15.Nc6 Kg6 16.Bh4 Bc2 17.Ke6 Bf5+ 18.Ke5 Bd7 19.Nb8
 22/51	00:01	 5 781 926	4 373 620	+9,66	1.Nh6 Ba2+ 2.Kf8 Bxf2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 exd4 7.exd4 Bh4 8.d5 Be7+ 9.Kxe7 Kg7 10.Kxd6 Kf6 11.Bc3+ Kg6 12.Ng8 h5 13.Ne7+ Kf7 14.Be1 Ke8 15.Bh4 Bc4 16.Nc6 Bd3 17.Ne5 Be4 18.Ke6 Bg2 19.d6 Bh3+ 20.Kd5
 23/45	00:01	 7 533 289	4 551 836	+9,96	1.Nh6 Ba2+ 2.Kf8 Bxf2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 exd4 7.exd4 Bh4 8.d5 Be7+ 9.Kxe7 Kg7 10.Kxd6 Bc4 11.Ke5 Bb5 12.Ke6 Bc4 13.Nf5+ Kg6 14.Ke5 Bb5 15.Nd6 Bd3 16.Ne4 Kf7 17.Nf6 Kg6 18.Ke6 Bf5+ 19.Ke7 Bh3 20.d6 h6 21.Bc3
 24/46+	00:04	 22 455 095	5 165 653	+13,96	1.Nh6
 24/69+	00:06	 32 383 701	5 019 172	+15,14	1.Nh6
 24/69	00:06	 34 997 409	5 023 311	+15,67	1.Nh6 Ba2+ 2.Kf8 Bxf2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 Bh4 7.d5 Be7+ 8.Kxe7 Kg7 9.e4 Kg6 10.Kxd6 Bb1 11.Ke7 Kh5 12.Nf7 Kg4 13.d6 Kh3 14.d7 Kh2 15.d8Q Kh1 16.Qg8 Bc2 17.Bf4 Ba4 18.Qxh7+ Kg2
 25/37+	00:07	 36 169 120	5 008 186	+15,71	1.Nh6
 25/37+	00:07	 36 185 907	5 007 044	+15,75	1.Nh6
 25/37+	00:07	 36 429 815	5 006 158	+15,90	1.Nh6
 25/37-	00:07	 36 450 447	5 006 241	+15,40	1.Nh6 Ba2+
 25/45+	00:07	 36 471 031	5 005 631	+15,83	1.Nh6
 25/45-	00:07	 36 847 504	5 009 176	+14,52	1.Nh6 Ba2+
 25/45+	00:07	 36 855 005	5 008 834	+15,65	1.Nh6
 25/45+	00:07	 36 932 468	5 008 471	+16,01	1.Nh6
 25/45-	00:07	 39 171 036	5 024 504	+13,83	1.Nh6 Ba2+
 25/45+	00:07	 39 172 755	5 024 724	+57,81	1.Nh6
 25/45+	00:08	 40 933 826	5 057 304	+90,13	1.Nh6
 25/45	00:08	 41 658 464	5 073 494	+91,60	1.Nh6 Ba2+ 2.Kf8 Bxf2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 exd4 7.exd4 Bh4 8.d5 Be7+ 9.Kxe7 Kg7 10.Kxd6 Kf6 11.Bc3+ Kg6 12.Ng8 Kg5 13.Ke5 Bb3 14.Nf6 Kg6 15.d6 Ba4 16.Bd2 h6 17.Ng8 h5 18.Nf6 h4 19.d7 Bb3 20.d8Q
 26/40-	00:08	 42 025 679	5 066 997	+73,87	1.Nh6 Ba2+
 26/40+	00:08	 42 035 784	5 067 605	+91,60	1.Nh6
 26/40+	00:08	 42 296 714	5 065 474	+92,81	1.Nh6
 26/40-	00:08	 42 334 910	5 065 802	+18,59	1.Nh6 Ba2+
 26/40+	00:08	 42 437 600	5 067 781	+83,80	1.Nh6
 26/41+	00:08	 42 974 741	5 054 068	+87,06	1.Nh6
 26/41-	00:08	 43 830 965	5 070 680	+18,37	1.Nh6 Bxf2
 26/46-	00:08	 44 010 479	5 075 009	+15,13	1.Nh6 Bxf2
 26/46+	00:08	 44 492 682	5 080 813	+45,22	1.Nh6
 26/54+	00:08	 44 538 875	5 080 286	+91,99	1.Nh6
 26/54	00:08	 44 939 187	5 079 022	+96,74	1.Nh6 Bxf2 2.Kf8 Ba2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 Bh4 7.d5 Be7+ 8.Kxe7 Kg7 9.e4 Kg6 10.Kxd6 Bb1 11.Ke7 Bxe4 12.d6 Bc6 13.d7 Bxd7
 27/28-	00:09	 47 338 171	5 029 020	+95,97	1.Nh6 Bxf2
 27/28-	00:09	 47 350 357	5 029 246	+95,89	1.Nh6 Bxf2
 27/37-	00:09	 47 376 985	5 028 870	+95,74	1.Nh6 Bxf2
 27/37+	00:09	 47 437 707	5 027 843	+96,68	1.Nh6
 27/37+	00:09	 47 508 016	5 025 707	+96,92	1.Nh6
 27/37-	00:09	 47 520 046	5 025 385	+91,37	1.Nh6 Bxf2
 27/37+	00:09	 47 525 859	5 025 468	+96,82	1.Nh6
 27/42-	00:09	 47 539 704	5 025 338	+73,87	1.Nh6 Bxf2
 27/42+	00:09	 47 541 248	5 025 501	+94,79	1.Nh6
 27/42+	00:09	 47 542 263	5 025 078	+96,82	1.Nh6
 27/45-	00:09	 47 901 524	5 018 493	+21,25	1.Nh6 Bxf2
 27/45+	00:09	 47 903 499	5 018 700	+94,79	1.Nh6
 27/45+	00:09	 47 904 829	5 018 314	+96,82	1.Nh6
 27/46-	00:09	 48 643 467	5 022 557	+18,07	1.Nh6 Bxf2
 27/46+	00:09	 48 680 845	5 022 786	+75,57	1.Nh6
 27/46+	00:09	 48 686 210	5 022 821	+93,67	1.Nh6
 27/46	00:10	 51 470 460	5 089 031	+96,74	1.Nh6 Bxf2 2.Kf8 Ba2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 Bh4 7.d5 Be7+ 8.Kxe7 Kg7 9.e4 Kg6 10.Kxd6 Bb1 11.Ke7 Bxe4 12.d6 Bc6 13.d7 Bxd7
 28/28+	00:10	 52 171 021	5 097 813	+96,82	1.Nh6
 28/41+	00:10	 52 290 693	5 100 038	+96,90	1.Nh6
 28/41+	00:10	 53 035 417	5 125 680	+97,02	1.Nh6
 28/41-	00:10	 54 061 203	5 156 543	+19,27	1.Nh6 Bxf2
 28/47+	00:10	 54 780 561	5 175 300	+96,93	1.Nh6
 28/47-	00:10	 55 360 304	5 180 153	+19,27	1.Nh6 Bxf2
 28/47+	00:10	 55 364 027	5 180 017	+96,49	1.Nh6
 28/47+	00:10	 55 365 674	5 180 171	+97,33	1.Nh6
 28/47	00:11	 58 001 659	5 171 331	+97,64	1.Nh6 Bxf2 2.Kf8 Ba2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 exd4 7.exd4 Bh4 8.d5 Be7+ 9.Kxe7 Kg7 10.Kxd6 Bb3 11.Ke6 Bc4 12.Ke5 Bb5 13.Nf5+ Kg6 14.d6 Bd7 15.Ne7+ Kf7 16.Nd5 Kg6 17.Nf6 Bc8 18.d7 Bxd7
 29/46-	00:11	 60 055 006	5 054 709	+97,53	1.Nh6 Bxf2
 29/46+	00:11	 60 074 132	5 055 043	+97,64	1.Nh6
 29/46	00:11	 60 125 983	5 055 577	+97,68	1.Nh6 Bxf2 2.Kf8 Ba2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 exd4 7.exd4 Bh4 8.d5 Be7+ 9.Kxe7 Kg7 10.Kxd6 Bb3 11.Ke6 Bc4 12.Ke5 Bb5 13.Nf5+ Kg6 14.d6 h5 15.Ke6 Bc4+ 16.Ke7 Kxf5
 30/39-	00:12	 61 839 514	4 987 862	+97,60	1.Nh6 Bxf2
 30/39+	00:12	 62 018 054	4 991 392	+97,68	1.Nh6
 30/39	00:12	 62 036 745	4 992 093	+97,68	1.Nh6 Bxf2 2.Kf8 Ba2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 exd4 7.exd4 Bh4 8.d5 Be7+ 9.Kxe7 Kg7 10.Kxd6 Bb3 11.Ke6 Bc4 12.Ke5 Bb5 13.Nf5+ Kg6 14.d6 h5 15.Ke6 Bc4+ 16.Ke7 Kxf5
 31/43-	00:12	 63 735 494	4 915 965	+97,60	1.Nh6 Bxf2
 31/43-	00:12	 63 776 795	4 917 254	+97,42	1.Nh6 Bxf2
 31/43+	00:13	 64 758 501	4 888 540	+97,60	1.Nh6
 31/43	00:13	 64 857 546	4 888 636	+97,68	1.Nh6 Bxf2 2.Kf8 Ba2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 exd4 7.exd4 Bh4 8.d5 Be7+ 9.Kxe7 Kg7 10.Kxd6 Bb3 11.Ke6 Bc4 12.Ke5 Bb5 13.Nf5+ Kg6 14.d6 h5 15.Ke6 Bc4+ 16.Ke7 Kxf5
 32/52+	00:15	 71 363 042	4 737 323	+97,76	1.Nh6
 32/52	00:15	 72 377 697	4 699 850	+97,76	1.Nh6 Bxf2 2.Kf8 Ba2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 exd4 7.exd4 Bh4 8.d5 Be7+ 9.Kxe7 Kg7 10.Kxd6 Kf6 11.Bc3+ Kg5 12.Ke5 Kxh6
 33/36	00:17	 78 569 919	4 550 820	+97,79	1.Nh6 Bxf2 2.Kf8 Ba2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bxe3 6.Nf7+ Bxf7 7.dxe5 h5 8.e6+ Kh7 9.Kxf7 Bg5 10.Bf6 Bxf6 11.Kxf6
 34/29+	00:18	 80 645 770	4 437 669	+97,87	1.Nh6
 34/29+	00:18	 80 951 489	4 443 245	+97,95	1.Nh6
 34/61+	00:19	 87 046 542	4 497 831	+98,50	1.Nh6
 34/61	00:22	 101 618 620	4 473 438	+98,63	1.Nh6 Bxf2 2.Kf8 Ba2 3.c4 bxc3 4.Bxc3+ e5 5.d4 Bg3 6.Bd2 exd4 7.exd4 Bh4 8.d5 Be7+ 9.Kxe7 Kg7 10.Kxd6 Bb3 11.Ke6 Bc4 12.Nf5+ Kg6 13.Ke5 h5 14.d6 Bb5 15.Ke6 Bc4+ 16.Ke7 Bb5 17.Nh4+ Kg7 18.d7 Bxd7 19.Kxd7
 35/39-	00:23	 105 763 981	4 441 625	+98,48	1.Nh6 Bxf2
 35/39+	00:24	 106 833 943	4 432 024	+98,63	1.Nh6

7) Bf2
Sometimes Crystal finds it after 1 minutes, sometimes if doesn't finds it after 20 minutes.

Sting-SF-27 and Bluefish-12 find a +2 score after 10 seconds.

Code: Select all

FEN: 8/N3q2p/p3N3/1P1P3P/8/4k1K1/1P6/4B3 w - - 0 1

Crystal3.1-sse4-popcnt:
Found 511 tablebases
NNUE evaluation using nn-62ef826d1a6d.nnue enabled
 1/2	00:00	 1 642	1 642 000	+2,33	1.Bf2+ Ke2 2.bxa6
 2/3	00:00	 3 888	3 888 000	+2,21	1.Bf2+ Ke4 2.Nc8
 3/4	00:00	 6 106	3 053 000	+2,07	1.Bf2+ Ke4 2.Nc8 Qb4 3.bxa6 Qxb2
 4/5	00:00	 11 630	3 876 666	+1,66	1.Bf2+ Ke4 2.Nc8 Qb4 3.bxa6
 5/7	00:00	 20 512	6 837 333	+0,27	1.Bf2+ Ke4 2.Nc8 Qb4 3.bxa6 Qb8+ 4.Kg4
 6/9	00:00	 25 787	6 446 750	+0,28	1.Bf2+ Ke4 2.Nc8 Qb4 3.bxa6 Qb8+ 4.Kg4 Qxc8
 7/13	00:00	 55 946	5 594 600	-0,90	1.Bf2+ Ke4 2.Nc8 Qf6 3.Nc5+ Kxd5 4.bxa6 Qg5+ 5.Kh2 Qxh5+ 6.Kg3 Qg5+ 7.Kh2
 8/21	00:00	 111 635	4 853 695	-0,45	1.Bf2+ Ke4 2.Kg2 Qf6 3.bxa6 Qf3+ 4.Kf1 Qd1+ 5.Kg2
 9/24	00:00	 190 803	4 892 384	-0,16	1.Nc6 Qd6+ 2.Kg4 Qxd5 3.Ncd4 axb5 4.Nf5+ Ke4 5.Ng5+ Kd3 6.Bc3 b4 7.Bf6 Qc4+ 8.Kg3
 10/19	00:00	 269 131	4 205 171	+0,29	1.Nc6 Qd6+ 2.Kg4 Qxd5 3.Ncd4 Qa2 4.bxa6 Qxa6 5.Bc3 Qc8 6.Nf5+ Kf2 7.Bd4+ Kg2 8.Ng5
 11/26	00:00	 461 132	4 230 568	+0,43	1.Nc6 Qd6+ 2.Kg4 Qxd5 3.Ncd4 Qg2+ 4.Bg3 axb5 5.Nf5+ Kd2 6.Kg5 Qe2 7.Ned4 Qe8 8.Be5 Kd3 9.Bg7
 12/24	00:00	 710 026	4 522 458	+2,42	1.Bf2+ Kd3 2.Nc8 Qf6 3.Nd6 axb5 4.Nf4+ Kc2 5.Nxb5 Qe5 6.Kf3 Kb3 7.Nc3 Kc4 8.Nd1 Kb5
 13/36	00:00	 1 803 054	4 720 036	+2,48	1.Bf2+ Kd3 2.Kf3 axb5 3.Nf4+ Kc2 4.Nxb5 Qd7 5.Nd4+ Kxb2 6.Ke4 Kc3 7.Nde6 Kc4 8.Bc5 Qb5 9.d6 Qb1+ 10.Ke5 Qh1
 14/30	00:00	 3 000 615	5 060 059	+3,78	1.Bf2+ Kd3 2.Nc8 Qe8 3.Nd6 Qg8+ 4.Kf3 axb5 5.Nf4+ Kc2 6.b4 Kb3 7.Bc5 Ka4 8.Ne4 Qh8 9.d6 Qa1 10.Kg4 Qe5 11.Ng5 Qe1 12.Nxh7
 15/36	00:00	 4 378 042	5 049 644	 0,00	1.Bf2+ Ke4 2.Nc8 Qf6 3.Nd6+ Kxd5 4.Nc7+ Ke5 5.bxa6 Qg7+ 6.Kh2 Qxc7 7.a7 Qc6 8.Nc4+ Kf5 9.b4 Qf3 10.Ne3+ Ke5 11.Nc4+
 16/35	00:01	 4 976 248	4 569 557	 0,00	1.Bf2+ Ke4 2.Nc8 Qf6 3.Nd6+ Kxd5 4.Nc7+ Ke5 5.bxa6 Qg7+ 6.Kh2 Qxc7 7.a7 Qc6 8.Nc4+ Kf5 9.b4 Qf3 10.Be3 Qe2+ 11.Kg3 Qg4+ 12.Kf2 Qh4+ 13.Kf3 Qe4+ 14.Kg3
 17/25	00:01	 5 313 948	4 534 085	 0,00	1.Bf2+ Ke4 2.bxa6 Kxd5 3.Nc8 Qxe6 4.Nb6+ Ke4 5.a7 Qe5+ 6.Kh3 Qf5+ 7.Kg2 Qf3+ 8.Kf1 Qd1+ 9.Kg2
 18/28	00:01	 6 010 410	4 432 455	 0,00	1.Bf2+ Ke4 2.bxa6 Kxd5 3.Nc8 Qxe6 4.Nb6+ Ke4 5.a7 Qe5+ 6.Kh3 Qf5+ 7.Kg2 Qf3+ 8.Kf1 Qd1+ 9.Kg2
 19/37	00:01	 7 125 000	4 132 830	 0,00	1.Bf2+ Ke4 2.Nc8 Qf6 3.Nd6+ Kxd5 4.Nc7+ Ke5 5.bxa6 Qg7+ 6.Kh2 Qxc7 7.a7 Qc6 8.Nc4+ Kf5 9.b4 Qf3 10.Be3 Qe2+ 11.Kg3 Qg4+ 12.Kf2 Qh4+ 13.Kf3 Qe4+ 14.Kg3
 20/33	00:01	 7 938 172	4 021 363	 0,00	1.Bf2+ Ke4 2.Nc8 Qf6 3.Nd6+ Kxd5 4.Nc7+ Ke5 5.bxa6 Qg7+ 6.Kh2 Qxc7 7.a7 Qc6 8.Nc4+ Kf5 9.b4 Qf3 10.Be3 Qe2+ 11.Kg3 Qg4+ 12.Kf2 Qh4+ 13.Kf3 Qe4+ 14.Kg3
 21/33	00:02	 9 516 841	3 852 972	 0,00	1.Bf2+ Ke4 2.Nc8 Qf6 3.Nd6+ Kxd5 4.Nc7+ Ke5 5.bxa6 Qg7+ 6.Kh2 Qxc7 7.a7 Qc6 8.Nc4+ Kf5 9.b4 Qf3 10.Be3 Qe2+ 11.Kg3 Qg4+ 12.Kf2 Qh4+ 13.Kf3 Qe4+ 14.Kg3
 22/29	00:02	 11 281 585	3 803 636	 0,00	1.Bf2+ Ke4 2.Nc8 Qf6 3.Nd6+ Kxd5 4.Nc7+ Ke5 5.bxa6 Qg7+ 6.Kh2 Qxc7 7.a7 Qc6 8.Nc4+ Kf5 9.b4 Qf3 10.Be3 Qe2+ 11.Kg3 Qg4+ 12.Kf2 Qh4+ 13.Kf3 Qe4+ 14.Kg3
 23/29	00:03	 14 359 406	3 760 975	 0,00	1.Bf2+ Ke4 2.Nc8 Qf6 3.Nd6+ Kxd5 4.Nc7+ Ke5 5.bxa6 Qg7+ 6.Kh2 Qxc7 7.a7 Qc6 8.Nc4+ Kf5 9.b4 Qf3 10.Be3 Qe2+ 11.Kg3 Qg4+ 12.Kf2 Qh4+ 13.Kf3 Qe4+ 14.Kg3
 24/29	00:04	 17 235 706	3 710 593	 0,00	1.Bf2+ Ke4 2.Nc8 Qf6 3.Nd6+ Kxd5 4.Nc7+ Ke5 5.bxa6 Qg7+ 6.Kh2 Qxc7 7.a7 Qc6 8.Nc4+ Kf5 9.b4 Qf3 10.Be3 Qe2+ 11.Kg3 Qg4+ 12.Kf2 Qh4+ 13.Kf3 Qe4+ 14.Kg3
 25/29	00:05	 21 189 725	3 684 528	 0,00	1.Bf2+ Ke4 2.Nc8 Qf6 3.Nd6+ Kxd5 4.Nc7+ Ke5 5.bxa6 Qg7+ 6.Kh2 Qxc7 7.a7 Qc6 8.Nc4+ Kf5 9.b4 Qf3 10.Be3 Qe2+ 11.Kg3 Qg4+ 12.Kf2 Qh4+ 13.Kf3 Qe4+ 14.Kg3
 26/29	00:07	 27 284 204	3 647 133	 0,00	1.Bf2+ Ke4 2.Nc8 Qf6 3.Nd6+ Kxd5 4.Nc7+ Ke5 5.bxa6 Qg7+ 6.Kh2 Qxc7 7.a7 Qc6 8.Nc4+ Kf5 9.b4 Qf3 10.Be3 Qe2+ 11.Kg3 Qg4+ 12.Kf2 Qh4+ 13.Kf3 Qe4+ 14.Kg3
 27/29	00:11	 39 476 263	3 486 686	 0,00	1.Bf2+ Ke4 2.Nc8 Qf6 3.Nd6+ Kxd5 4.Nc7+ Ke5 5.bxa6 Qg7+ 6.Kh2 Qxc7 7.a7 Qc6 8.Nc4+ Kf5 9.b4 Qf3 10.Be3 Qe2+ 11.Kg3 Qg4+ 12.Kf2 Qh4+ 13.Kf3 Qe4+ 14.Kg3
 28/29	00:15	 52 662 443	3 476 757	 0,00	1.Bf2+ Ke4 2.Nc8 Qf6 3.Nd6+ Kxd5 4.Nc7+ Ke5 5.bxa6 Qg7+ 6.Kh2 Qxc7 7.a7 Qc6 8.Nc4+ Kf5 9.b4 Qf3 10.Be3 Qe2+ 11.Kg3 Qg4+ 12.Kf2 Qh4+ 13.Kf3 Qe4+ 14.Kg3
 29/29	00:19	 68 681 860	3 492 949	 0,00	1.Bf2+ Ke4 2.Nc8 Qf6 3.Nd6+ Kxd5 4.Nc7+ Ke5 5.bxa6 Qg7+ 6.Kh2 Qxc7 7.a7 Qc6 8.Nc4+ Kf5 9.b4 Qf3 10.Be3 Qe2+ 11.Kg3 Qg4+ 12.Kf2 Qh4+ 13.Kf3 Qe4+ 14.Kg3
 30/29	00:23	 82 992 180	3 507 996	 0,00	1.Bf2+ Ke4 2.Nc8 Qf6 3.Nd6+ Kxd5 4.Nc7+ Ke5 5.bxa6 Qg7+ 6.Kh2 Qxc7 7.a7 Qc6 8.Nc4+ Kf5 9.b4 Qf3 10.Be3 Qe2+ 11.Kg3 Qg4+ 12.Kf2 Qh4+ 13.Kf3 Qe4+ 14.Kg3
 31/29	00:33	 117 926 626	3 495 675	 0,00	1.Bf2+ Ke4 2.Nc8 Qf6 3.Nd6+ Kxd5 4.Nc7+ Ke5 5.bxa6 Qg7+ 6.Kh2 Qxc7 7.a7 Qc6 8.Nc4+ Kf5 9.b4 Qf3 10.Be3 Qe2+ 11.Kg3 Qg4+ 12.Kf2 Qh4+ 13.Kf3 Qe4+ 14.Kg3
 32/29	00:44	 158 639 312	3 581 022	 0,00	1.Bf2+ Ke4 2.Nc8 Qf6 3.Nd6+ Kxd5 4.Nc7+ Ke5 5.bxa6 Qg7+ 6.Kh2 Qxc7 7.a7 Qc6 8.Nc4+ Kf5 9.b4 Qf3 10.Be3 Qe2+ 11.Kg3 Qg4+ 12.Kf2 Qh4+ 13.Kf3 Qe4+ 14.Kg3
 33/29	00:49	 182 011 677	3 649 283	 0,00	1.Bf2+ Ke4 2.Nc8 Qf6 3.Nd6+ Kxd5 4.Nc7+ Ke5 5.bxa6 Qg7+ 6.Kh2 Qxc7 7.a7 Qc6 8.Nc4+ Kf5 9.b4 Qf3 10.Be3 Qe2+ 11.Kg3 Qg4+ 12.Kf2 Qh4+ 13.Kf3 Qe4+ 14.Kg3
 34/34+	00:56	 206 850 745	3 689 546	+0,03	1.Bf2+
 34/34+	00:56	 208 149 261	3 695 241	+0,08	1.Bf2+
 34/98+	03:55	1 158 915 941	4 915 930	+8,26	1.Bf2+

8) e6
Found after 10 seconds

Code: Select all

FEN: 1R3B2/5p2/2p2P2/4P3/2p5/b1r3Pk/8/6K1 w - - 0 1

Crystal3.1-sse4-popcnt:
Found 511 tablebases
NNUE evaluation using nn-62ef826d1a6d.nnue enabled
 1/1	00:00	 929	464 500	+0,35	1.Kf2
 2/2	00:00	 1 374	687 000	+0,42	1.Kf2 Kg4 2.Bxa3
 3/3	00:00	 2 059	1 029 500	+0,50	1.Kf2 Kg4 2.Bxa3
 4/4	00:00	 4 849	692 714	+0,49	1.Kf2 Kg4 2.Bxa3 Rxa3
 5/7	00:00	 6 797	971 000	+0,96	1.Bxa3 Rxa3 2.e6 fxe6 3.f7 Rxg3+ 4.Kf2 Rg2+ 5.Ke3
 6/9	00:00	 8 553	1 221 857	+0,87	1.Bxa3 Rxa3 2.e6 fxe6 3.f7 Rxg3+ 4.Kf2 Rg2+ 5.Ke3
 7/11	00:00	 15 807	752 714	+1,25	1.Bxa3 Rxa3 2.e6 fxe6 3.f7 Ra1+ 4.Kf2 Ra2+ 5.Kf3 Ra3+ 6.Kf4
 8/18	00:00	 35 828	1 155 741	+2,09	1.e6 Bxf8 2.Rxf8 fxe6 3.f7 Rc1+ 4.Kf2 Rc2+ 5.Kf3 Rc3+ 6.Kf4 Kg2
 9/22	00:00	 138 647	1 195 232	+0,34	1.e6 Rxg3+ 2.Kf2 Rg6 3.Bxa3 Rxf6+ 4.Ke3 Rxe6+ 5.Kd4 c3 6.Kd3 f5 7.Bc1
 10/25	00:00	 288 700	1 450 753	+3,04	1.e6 Rxg3+ 2.Kf2 Rg6 3.Be7 Bc5+ 4.Kf3 Rg3+ 5.Kf4 Be3+ 6.Ke5 fxe6 7.f7 c3 8.f8R
 11/23	00:00	 425 185	1 680 573	+1,09	1.e6 Rxg3+ 2.Kf2 Rg6 3.Be7 fxe6 4.Kf3 Rh6 5.Ra8 Bc5 6.Bxc5 Rxf6+ 7.Ke4 e5 8.Kxe5
 12/23	00:00	 743 113	1 756 768	+1,08	1.e6 Rxg3+ 2.Kf2 Rg6 3.Be7 fxe6 4.Kf3 Rh6 5.Rc8 Bb4 6.Rxc6 c3 7.Rc4 Bd6 8.Rxc3 Kh4 9.Bxd6
 13/32	00:00	 1 620 662	1 976 417	+1,69	1.Kf2 Bc1 2.e6 Rc2+ 3.Ke1 fxe6 4.Bd6 Kg4 5.f7 Bh6 6.f8Q Bxf8 7.Rxf8
 14/32	00:01	 2 705 150	2 116 705	+2,13	1.Kf2 Kg4 2.e6 Bxf8 3.e7 Rc2+ 4.Ke1 Bh6 5.Rd8 Rc1+ 6.Rd1 Rc3 7.e8Q Re3+ 8.Qxe3 Bxe3 9.Rd7 c3 10.Kd1 c5 11.Rxf7 Bd4 12.Rf8 Kf5 13.f7 Kf6 14.Kc2 Be5
 15/31	00:01	 2 887 405	2 115 315	+2,36	1.Kf2 Kg4 2.e6 Bxf8 3.e7 Rc2+ 4.Ke1 Bh6 5.Rd8 Rc1+ 6.Rd1 Rc3 7.e8Q Re3+ 8.Qxe3 Bxe3 9.Rd7 c3 10.Kd1 c5 11.Rxf7 Bd4
 16/34	00:02	 5 117 560	2 189 798	+0,72	1.Kf2 Kg4 2.e6 Bxf8 3.e7 Rc2+ 4.Ke1 Bh6 5.Rb1 Rc3 6.e8Q Re3+ 7.Qxe3 Bxe3 8.Rb7 c3 9.Kd1 Bd4 10.Rxf7 c5 11.Rf8 Kg5 12.f7 Kf6 13.g4 Kg7 14.Rc8 Kxf7 15.Ke2 Kg6 16.Kd3
 17/45	00:02	 5 910 375	2 113 112	+0,75	1.Kf2 Kg4 2.e6 Bxf8 3.e7 Rc2+ 4.Ke1 Bh6 5.Rd8 Rc1+ 6.Rd1 Rc3 7.e8Q Re3+ 8.Qxe3 Bxe3 9.Rd7 c3 10.Kd1 c5 11.Rxf7 Bd4 12.Rf8 Kg5 13.f7 Kf6 14.Kc2 Ke7 15.Rc8 Kxf7 16.Rc6 Bf2 17.g4 Bd4
 18/46-	00:03	 6 481 311	2 090 071	+0,73	1.Kf2 Kg4
 18/46-	00:03	 6 882 256	2 067 985	+0,69	1.Kf2 Kg4
 18/46	00:03	 7 355 122	2 041 955	+0,63	1.Kf2 Kg4 2.e6 Bxf8 3.e7 Rc2+ 4.Ke1 Bh6 5.Rd8 Rc1+ 6.Rd1 Rc3 7.e8Q Re3+ 8.Qxe3 Bxe3 9.Rd7 c3 10.Kd1 c5 11.Rxf7 Bd4 12.Rf8 Kg5 13.f7 Kf6 14.Kc2 Ke7 15.Ra8 Kxf7 16.Kd3
 19/41	00:04	 9 332 210	2 033 604	+0,47	1.Kf2 Kg4 2.e6 Bxf8 3.e7 Rc2+ 4.Ke1 Bh6 5.Rb1 Rc3 6.e8Q Re3+ 7.Qxe3 Bxe3 8.Rb7 c3 9.Kd1 Bd4 10.Rxf7 c5 11.Rf8 Kf5 12.f7 Kf6 13.Ke2 Ke7 14.Rc8 Kxf7 15.Rc6 Be5 16.g4 Bd4 17.g5
 20/43+	00:04	 10 125 451	2 076 163	+0,48	1.Kf2
 20/44-	00:05	 12 226 882	2 120 513	+0,40	1.Kf2 Kg4
 20/44-	00:06	 15 099 799	2 217 297	+0,34	1.Kf2 Kg4
 20/44	00:06	 15 106 422	2 217 944	+0,35	1.Kf2 Kg4 2.e6 Bxf8 3.e7 Rc2+ 4.Ke1 Bh6 5.Rb1 Rc3 6.e8Q Re3+ 7.Qxe3 Bxe3 8.Rb7 c3 9.Kd1 c5 10.Rxf7 Bd4 11.Rf8 Kf5 12.f7 Kf6 13.Kc2 Ke7 14.Rc8 Kxf7 15.Rc6 Kg7 16.Ra6 Kf7 17.g4 Ke7 18.Rb6 Kf7 19.Rb5 Kg6 20.Kd3 Kg5
 21/43-	00:08	 18 771 022	2 263 750	+0,21	1.Kf2 Kg4
 21/43-	00:09	 21 777 020	2 363 214	+0,17	1.Kf2 Kg4
 21/117+	00:10	 26 986 392	2 573 073	+0,17	1.e6
 21/117+	00:11	 29 391 478	2 583 184	+0,92	1.e6
 21/117	00:12	 31 860 009	2 595 097	+1,14	1.e6 Re3 2.Bxa3 Rxe6 3.Be7 Kxg3 4.Kf1 Kf4 5.Rb2 Re4 6.Rc2 Ke3 7.Re2+ Kf3 8.Rxe4 Kxe4 9.Ke2 Kf5 10.Ke3 Ke5 11.Bd8 c5 12.Be7 Kd5 13.Kd2 Kd4
 22/35-	00:13	 35 694 411	2 698 602	+1,10	1.e6 Re3
 22/48-	00:14	 41 905 526	2 828 969	+1,06	1.e6 Rxg3+
 22/48+	00:15	 42 938 546	2 827 694	+1,10	1.e6
 22/48-	00:16	 46 099 649	2 857 652	+1,00	1.e6 Re3
 22/48+	00:16	 46 400 181	2 864 562	+1,09	1.e6
 22/50+	00:18	 52 884 332	2 936 387	+1,47	1.e6
 22/50	00:19	 57 466 775	3 003 071	+1,43	1.e6 Re3 2.Bxa3 Rxe6 3.Be7 Kxg3 4.Kf1 Kf3 5.Rb2 Re4 6.Bb4 Rh4 7.Ke1 Rh5 8.Rf2+ Ke3 9.Re2+ Kd3 10.Rd2+ Ke3 11.Kd1 Rd5 12.Kc2 Rxd2+ 13.Bxd2+ Ke4 14.Bb4 Kf5 15.Be7 Ke4 16.Ba3 Kf5 17.Bb2 Kg6 18.Bc3 Kg5 19.Kd1 Kg6 20.Kd2 Kf5 21.Ke3 Kg6 22.Ke4 Kg5 23.Ke5 Kg4
 23/40+	00:19	 57 506 907	3 002 971	+1,76	1.e6
 23/40+	00:19	 59 119 486	3 007 706	+1,80	1.e6
 23/51+	00:21	 68 144 137	3 108 339	+2,08	1.e6
 23/51	00:22	 72 027 195	3 135 570	+2,73	1.e6 Re3 2.Bxa3 Rxe6 3.Be7 Kxg3 4.Kf1 Kf3 5.Rb2 Re3 6.Rf2+ Kg4 7.Rd2 Kf3 8.Rd6 c5 9.Rc6 Ke4 10.Bxc5 Rb3 11.Ke2 c3 12.Rc7 Rb2+ 13.Kd1 Rd2+ 14.Kc1 Kd3 15.Bb4 Rc2+ 16.Kd1 Rd2+ 17.Ke1 Rc2 18.Kf1 Rc1+ 19.Kf2 c2 20.Be1 Ra1 21.Rc3+ Ke4 22.Rxc2
 24/38-	00:23	 73 371 045	3 152 218	+2,69	1.e6 Re3
 24/38+	00:23	 73 456 136	3 153 571	+2,73	1.e6
 24/58+	00:26	 86 257 619	3 247 651	+3,00	1.e6
 24/58	00:26	 86 346 365	3 248 424	+2,84	1.e6 Re3 2.Bxa3 Rxe6 3.Be7 Kxg3 4.Kf1 Kf3 5.Rb2 Re3 6.Rf2+ Kg4 7.Rd2 Kf3 8.Rd6 Re5 9.Rxc6 Rb5 10.Ke1 Ke3 11.Bc5+ Kd3 12.Rd6+ Ke4 13.Bd4 Rb3 14.Ke2 Rh3 15.Bc5 Rh6 16.Kd1 Ke5 17.Ra6 Kd5 18.Be7 Rh2 19.Rd6+ Ke5 20.Kc1 Rh5 21.Kc2 Rh4 22.Rc6 Rh2+ 23.Kc3
 25/50+	00:26	 87 124 549	3 259 063	+3,00	1.e6
 25/50-	00:26	 87 823 909	3 255 631	+2,91	1.e6 Re3
 25/50+	00:27	 90 690 364	3 280 059	+2,98	1.e6
 25/50+	00:28	 96 846 811	3 350 521	+3,19	1.e6
 25/54	00:29	 97 714 577	3 360 198	+3,16	1.e6 Re3 2.Bxa3 Rxe6 3.Be7 Kxg3 4.Kf1 Kf3 5.Rb2 Re3 6.Rf2+ Kg4 7.Rd2 Kf3 8.Rd6 c5 9.Rc6 Ke4 10.Bxc5 Rb3 11.Ke1 c3 12.Kd1 Rb5 13.Rc7 Ke5 14.Be7 Kd4 15.Rd7+ Kc4 16.Bf8 Kb3 17.Rxf7 Kb2 18.Rc7 Rd5+ 19.Ke2
 26/47+	00:30	 103 443 544	3 384 489	+3,41	1.e6
 26/47+	00:31	 107 605 299	3 392 455	+3,46	1.e6
 26/56+	00:40	 148 511 127	3 655 568	+3,73	1.e6
 26/87	00:42	 155 348 803	3 694 382	+3,76	1.e6 Re3 2.Bxa3 Rxe6 3.Be7 Kxg3 4.Kf1 Kf3 5.Rb2 Re4 6.Rf2+ Kg4 7.Re2 Rd4 8.Ke1 Kf5 9.Rh2 c5 10.Rh5+ Ke4 11.Bxc5 Rd3 12.Ke2 Rg3 13.Kd2 Rf3 14.Be7 Kd4 15.Rh4+ Kd5 16.Rh8 c3+ 17.Kc2 Kd4 18.Kb3 Ke5 19.Rh4
 27/47+	00:45	 168 714 732	3 737 339	+4,19	1.e6
 27/53+	00:45	 171 714 326	3 758 411	+4,24	1.e6
 27/66-	00:45	 172 708 937	3 766 825	+4,07	1.e6 Re3
 27/66+	00:46	 174 101 854	3 777 678	+4,20	1.e6
 27/66	00:46	 174 641 433	3 780 526	+4,26	1.e6 Re3 2.Bxa3 Rxe6 3.Be7 Kxg3 4.Kf1 Kf3 5.Rb2 Re3 6.Rf2+ Kg4 7.Rd2 Kf3 8.Rd6 Rb3 9.Ke1 Ke4 10.Kd2 c5 11.Rc6 Rf3 12.Rxc5 Rd3+ 13.Kc1 Rc3+ 14.Kb2 Rb3+ 15.Kc2 Kd4 16.Rc7 Rc3+ 17.Kd2 Rd3+ 18.Ke2 Re3+ 19.Kf2 Rh3 20.Bf8 Kd5 21.Ke2 Rh2+ 22.Ke3 Ke5 23.Be7 Rh3+ 24.Ke2 c3 25.Kd1 Kd4



FEN: 1R3B2/5p2/2p2P2/4P3/2p5/b1r3Pk/8/6K1 w - - 0 1

Crystal3.1-sse4-popcnt:
Found 511 tablebases
NNUE evaluation using nn-62ef826d1a6d.nnue enabled
...
 20/87	00:04	 20 559 404	4 460 708	+0,32	1.Kf2 Kg4 2.e6 Bxf8 3.e7 Rc2+ 4.Ke1 Bh6 5.Rb1 Rc3 6.e8Q Re3+ 7.Qxe3 Bxe3 8.Rb7 c3 9.Kd1 Bd4 10.Rxf7 c5 11.Rf8 Kf5 12.g4+ Kg6 13.Kc2 Bxf6 14.Rg8+ Kf7 15.Rc8 Bd4 16.Rc6 Kg7 17.Kb3 Kf7 18.g5 Kg7
 21/48-	00:04	 21 431 185	4 439 856	+0,19	1.Kf2 Kg4
 21/49-	00:05	 23 399 688	4 394 307	+0,15	1.Kf2 Kg4
 21/94+	00:06	 28 860 693	4 447 633	+0,15	1.Be7
 21/94	00:06	 30 038 427	4 461 373	+0,16	1.Be7 Rf3 2.Rh8+ Kxg3 3.e6 fxe6 4.Rg8+ Kh3 5.Bxa3 Rxf6 6.Bb4 Rf4 7.Ra8 e5 8.Bd2 Rf3 9.Be1 e4 10.Ra2 c3 11.Rc2 c5 12.Bxc3 Kg4 13.Ba5 Rf8 14.Rxc5
 22/92-	00:07	 31 947 533	4 471 939	+0,12	1.Be7 Rf3
 22/92+	00:07	 34 322 921	4 497 238	+0,16	1.e6
 22/128+	00:10	 46 991 740	4 637 953	+1,47	1.e6
 22/128	00:10	 50 817 334	4 681 036	+1,61	1.e6 Re3 2.Bxa3 Rxe6 3.Rb1 Kxg3 4.Be7 Kf3 5.Rc1 Re4 6.Kf1 Rf4 7.Ke1 Ke3 8.Bc5+ Kd3 9.Rd1+ Ke4 10.Rd4+ Kf5 11.Rxf4+ Kxf4 12.Kd2 Ke5 13.Be7 Ke6 14.Ke3 Ke5 15.Bd8 Kd5 16.Ba5 Ke5 17.Bc3+ Kf5 18.Bb2 c5 19.Kf3 Kg5 20.Ke4 Kh4
 23/35+	00:11	 55 595 640	4 680 161	+1,65	1.e6
 23/40-	00:12	 56 820 921	4 654 400	+1,57	1.e6 Rxg3+
 23/40+	00:12	 57 350 527	4 634 760	+1,63	1.e6
 23/40-	00:12	 58 423 196	4 589 050	+1,50	1.e6 Rxg3+
 23/40+	00:12	 59 438 697	4 585 257	+1,63	1.e6
 23/40+	00:13	 61 233 346	4 582 991	+1,79	1.e6
 23/49	00:14	 66 712 233	4 605 290	+1,90	1.e6 Re3 2.Bxa3 Rxe6 3.Rb1 Kxg3 4.Be7 Kf3 5.Rc1 Re4 6.Kf1 Rd4 7.Ke1 Ke4 8.Rc3 Ke5 9.Rh3 Rd3 10.Rh4 c3 11.Ke2 Rd4 12.Rxd4 Kxd4 13.Kd1 Kd3 14.Kc1 c2 15.Bd6 Kc3 16.Be5+ Kb3 17.Bb2 c5 18.Be5
 24/43+	00:15	 70 834 751	4 629 419	+2,24	1.e6
 24/43+	00:15	 73 274 768	4 657 097	+2,28	1.e6
 24/43-	00:16	 74 950 510	4 659 073	+2,16	1.e6 Re3
 24/43+	00:16	 75 151 268	4 661 700	+2,25	1.e6
 24/52+	00:17	 82 272 812	4 725 606	+2,37	1.e6
 24/52	00:18	 86 203 696	4 749 514	+2,37	1.e6 Re3 2.Bxa3 Rxe6 3.Be7 Kxg3 4.Rb1 Kf3 5.Rc1 Re4 6.Kf1 Rd4 7.Ke1 Ke4 8.Rc3 Kd5 9.Rh3 Rf4 10.Ke2 Re4+ 11.Kd2 Kd4 12.Bb4 Ke5 13.Bc3+ Kd5 14.Rh5+ Ke6 15.Rh1 Kf5 16.Rh3 Rg4 17.Ke1 Re4+ 18.Kf2 Rf4+ 19.Rf3 Ke4 20.Rxf4+ Kxf4 21.Ke2 Ke4 22.Kd2 Kf4
 25/50-	00:18	 87 702 556	4 762 560	+2,51	1.e6 Re3
 25/50-	00:18	 87 919 290	4 764 498	+2,47	1.e6 Re3
 25/50-	00:19	 91 037 383	4 788 668	+2,20	1.e6 Re3
 25/50+	00:19	 91 043 105	4 788 969	+2,31	1.e6
 25/50+	00:19	 91 924 550	4 796 730	+2,53	1.e6
 25/50	00:20	 99 316 718	4 786 347	+2,76	1.e6 Re3 2.Bxa3 Rxe6 3.Be7 Kxg3 4.Rb1 Re4 5.Kf1 Re3 6.Re1 Rb3 7.Ke2 Kf4 8.Rc1 Re3+ 9.Kf1 Re4 10.Kf2 Kf5 11.Ra1 Ke5 12.Re1 Kd4 13.Rxe4+ Kxe4 14.Ke2 Kd4 15.Kd2 Ke5 16.Ke3 Kd5 17.Bb4 c5 18.Bc3 Kd6 19.Ke4 Kc6
 26/77-	00:21	 104 249 228	4 819 213	+2,93	1.e6 Re3
 26/77-	00:22	 106 280 222	4 830 699	+2,89	1.e6 Re3
 26/77-	00:22	 106 998 632	4 832 165	+2,74	1.e6 Re3
 26/77+	00:22	 111 644 631	4 861 088	+2,81	1.e6
 26/77	00:23	 115 750 539	4 899 701	+2,81	1.e6

[Nordlandia]

Try 1. Nxd2 with 50-move rule disabled.

[d]5rk1/5p2/5R2/6PK/2b1N3/3N4/pQnp3n/8 w - - 0 1

[Vinvin]

Try 1. Nxd2 with 50-move rule disabled.

5rk1/5p2/5R2/6PK/2b1N3/3N4/pQnp3n/8 w - - 0 1

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