Obsidian can be fast in test positions

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Jouni
Posts: 3606
Joined: Wed Mar 08, 2006 8:15 pm
Full name: Jouni Uski

Obsidian can be fast in test positions

Post by Jouni »

Hard-Talkchess-2020.099
[d]7k/4PBNp/7P/2p5/2P5/2rq2Pp/1P3P1K/8 b - - 0 1

Analysis by Obsidian 15.0 JA:
...
1...Qe4 2.e8Q+ Qxe8 3.Nxe8 Rxc4 4.Kxh3 Rc2 5.b3 Rxf2 6.Bd5 c4 7.bxc4 Rh2+ 8.Kg4 Rh4+ 9.Kf5 Rxc4 10.Be4 Ra4 11.Nd6 Ra7 12.Kf4 Ra6 13.Nf7+ Kg8 14.Ng5 Rxh6 15.Bxh7+ Kg7 16.Bd3 Rb6 17.Nf3 Kh6 18.Be4 Rb4 19.Ne5 Rb6 20.Nc6 Rb2 21.Nd4 Rf2+ 22.Ke5 Kh5 23.Bf5 Rg2 24.Kf4 Rf2+ 25.Nf3 Kh6 26.g4 Rf1 27.Be4 Rd1 28.Ng5 Rf1+ 29.Bf3 Rf2 30.Nf7+ Kg7 31.Ne5 Ra2
+- (4.34) Depth: 44 00:00:17 158mN, tb=583517
1...Qe4 2.e8Q+ Qxe8 3.Nxe8 Rxc4 4.Kxh3 Rc2 5.b3 Rxf2 6.Bd5 c4 7.bxc4 Rh2+ 8.Kg4 Rh4+ 9.Kf5 Rxc4 10.Be4 Ra4 11.Nd6 Ra6 12.Ke5 Ra5+ 13.Kf4 Ra6 14.Nf7+ Kg8 15.Ng5 Rxh6 16.Bxh7+ Kg7 17.Bd3 Rb6 18.Nf3 Kh6 19.Be4 Rb4 20.Ne5 Rb2 21.Nf7+ Kg7 22.Nd6 Kh6 23.Nf5+ Kg6 24.Nd4+ Kf6 25.Nc2 Ra2 26.g4 Ra4 27.Ne3 Ra1 28.Nd5+ Kg7 29.Nc7 Ra4 30.Ne6+
+- (4.30) Depth: 45 00:00:19 168mN, tb=645854
1...Qxg3+ 2.fxg3 Rc2+ 3.Kxh3 Rh2+ 4.Kg4 Rh4+ 5.Kf5 Rf4+ 6.Ke5 Re4+ 7.Kd6 Re6+ 8.Kxc5 Rc6+ 9.Kd4 Rxc4+ 10.Ke5 Re4+ 11.Kd6 Re6+ 12.Kc5 Rc6+ 13.Kb4 Rc4+ 14.Kb3 Rc3+ 15.Ka2 Ra3+ 16.Kb1 Ra1+ 17.Kc2 Rc1+ 18.Kd3 Rc3+ 19.Ke4 Rc4+
= (0.00) Depth: 46 00:00:26 242mN, tb=899273

Stockfish or ShashChess has no clue.

Second example:

[d]k7/7p/2p5/2rp1PP1/pp6/7p/5K1P/4R3 w - - 0 1

Analysis by Obsidian 15.0 JA:
...
1.f6 d4 2.Kf3 d3 3.Ke3 Rxg5 4.Rf1 Rg8 5.Kxd3 Rf8 6.Kc4 b3 7.Ra1 Rxf6 8.Rxa4+ Kb7 9.Rb4+ Kc7
-+ (-1.95) Depth: 15 00:00:00 1482kN, tb=161
1.f6 d4 2.Kf3 Rxg5 3.Ke4 Rg8 4.Kxd4 Rf8 5.Rf1 Kb7 6.Kc4 b3 7.Kb4 b2 8.Rb1 Rxf6 9.Rxb2 Rf4+ 10.Ka5+ Kc8 11.Rc2 Kd7 12.Rc3 h5 13.Rxh3
-+ (-3.33) Depth: 16 00:00:00 4202kN, tb=1077
1.f6 d4 2.Kf3 Rxg5 3.Ke4 Rg8 4.Kxd4 Rf8 5.Rf1 Kb7 6.Kc4 b3 7.Kb4 b2 8.Rb1 Rxf6 9.Rxb2 Rf4+ 10.Kc5+ Kc7 11.Re2 a3 12.Re7+ Kb8 13.Re8+
1.Kf3 d4 2.Kf4 d3 3.f6 d2 4.Rd1 Rb5 5.Rxd2 Rb8 6.Ra2 a3 7.Ke5 Kb7 8.Kd6 Kb6 9.f7 Kb5 10.Rf2 Rf8 11.Rf5+ Ka4 12.Rf2 b3 13.Rf4+ Kb5 14.Rf5+
-+ (-5.25) Depth: 22 00:00:06 55614kN, tb=35359
1.Ke3 d4+ 2.Kf4 d3 3.f6 d2 4.Rd1 Rb5 5.Rxd2 Rb8 6.Ra2 a3 7.Ke5 Kb7 8.Kd6 Kb6 9.f7 Kb5 10.Ra1 c5 11.Ke7 Ka4 12.Rf1 b3
-+ (-5.64) Depth: 23 00:00:09 80429kN, tb=52959
1.g6 d4 2.Re5 Rxe5 3.g7 Rxf5+ 4.Kg1 Rg5+ 5.Kh1 Rd5 6.g8Q+ Kb7 7.Qf8 d3 8.Qe7+ Kc8 9.Qe8+ Kc7 10.Qe7+ Rd7 11.Qe3 Kb7 12.Qe8 Rd4 13.Qe5 Rc4 14.Kg1
-+ (-1.72) Depth: 24 00:00:10 91292kN, tb=59907
1.g6 d4 2.Re5 Rxe5 3.g7 Rxf5+ 4.Kg1 Rg5+ 5.Kh1 Rc5 6.g8Q+ Kb7 7.Kg1 b3 8.Qg7+ Kb6 9.Qxd4 Kb5 10.Kf1 Rc2 11.Qe5+ c5 12.Qe4 h5 13.Qe8+ Kb4 14.Qe1+
-/+ (-1.16) Depth: 25 00:00:10 92509kN, tb=60028
1.g6 d4 2.Re5 Rxe5 3.g7 Rxf5+ 4.Kg1 Rg5+ 5.Kh1 Ka7 6.g8Q Rc5 7.Kg1 Ka6 8.Qb8 Ka5 9.Qa7+ Kb5 10.Kf1 b3 11.Qb7+ Kc4 12.Qa7 Rb5 13.Ke2 b2 14.Qxa4+ Rb4 15.Qc2+
=/+ (-0.59) Depth: 26 00:00:10 95221kN, tb=60548
1.g6 d4 2.Re5 Rxe5 3.g7 Rxf5+ 4.Kg1 Rg5+ 5.Kh1 Rc5 6.g8Q+ Kb7 7.Kg1 Ka6 8.Qb8 Ka5 9.Kf1 b3 10.Qd8+ Kb5 11.Qxd4 Rc4 12.Qd6 Rc2 13.Qb8+ Kc4 14.Qf4+ Kc3 15.Qe5+ Kb4 16.Qe1+ Rc3
=/+ (-0.37) Depth: 27 00:00:11 97549kN, tb=60794
Jouni
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Dann Corbit
Posts: 12751
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: Obsidian can be fast in test positions

Post by Dann Corbit »

Source information on those two problems:
[d]7k/4PBNp/7P/2p5/2P5/2rq2Pp/1P3P1K/8 b - - acd 78; bm Qxg3+; ce 0; c1 "Hard-Talkchess-2020.099"; c3 "Qxg3+"; c4 "Neghina, M._Chase, Derived_HTC108-54, 169"; c5 "62 test positions from last couple of m; 2018.12.04;"; c6 "Neghina, M._Chase, Derived_HTC108-54, 19"; pm Qxg3+; pv Qxg3+;

[d]k7/7p/2p5/2rp1PP1/pp6/7p/5K1P/4R3 w - - acd 88; bm g6; ce 0; c0 "1.p Morgenzeitung; 1928; Zepler=E; (=0400.36f2a8) (c); 1/2-1/2"; c1 "g6, 42"; c3 "g6"; c4 "Zepler, E.E_Studie, 1928_?, 174"; c5 "Zepler=E; 1/2"; c6 "Zepler, E.E._Studie, 1928._?, 24"; c7 "1.p Morgenzeitung;1928;W:Zepler=E;(=0400.36f2a8) (c);1/2-1/2;1928"; c8 "pv g6 hxg6 f6 d4 Rh1 Rf5+ Kg1 Rxf6 1/2-1/2"; c9 "HHdbVI.1509256.001a.79883"; pm g6; pv g6 d4 Re5 Rxe5 g7 Rxf5+ Kg1 Rg5+ Kh1 Rc5 g8=Q+ Ka7 Kg1 Kb6 Qd8+ Kb5 Qxd4 a3 Qd3+ Rc4 Qb3 Rc3 Qd1 b3 Qh5+ Kc4 Qg4+ Kc5 Qf5+ Kb6 Qf4 b2 Qb4+ Kc7 Qf4+ Kd7 Qd4+ Ke6 Qe4+ Kf6 Qf4+ Kg7 Qe5+ Kf7 Qf5+ Ke7 Qe4+; white_wins 0; black_wins 0; draws 1;
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Uri Blass
Posts: 10769
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

Re: Obsidian can be fast in test positions

Post by Uri Blass »

Jouni wrote: ↑Mon Feb 10, 2025 10:32 pm Hard-Talkchess-2020.099
[d]7k/4PBNp/7P/2p5/2P5/2rq2Pp/1P3P1K/8 b - - 0 1

Analysis by Obsidian 15.0 JA:
...
1...Qe4 2.e8Q+ Qxe8 3.Nxe8 Rxc4 4.Kxh3 Rc2 5.b3 Rxf2 6.Bd5 c4 7.bxc4 Rh2+ 8.Kg4 Rh4+ 9.Kf5 Rxc4 10.Be4 Ra4 11.Nd6 Ra7 12.Kf4 Ra6 13.Nf7+ Kg8 14.Ng5 Rxh6 15.Bxh7+ Kg7 16.Bd3 Rb6 17.Nf3 Kh6 18.Be4 Rb4 19.Ne5 Rb6 20.Nc6 Rb2 21.Nd4 Rf2+ 22.Ke5 Kh5 23.Bf5 Rg2 24.Kf4 Rf2+ 25.Nf3 Kh6 26.g4 Rf1 27.Be4 Rd1 28.Ng5 Rf1+ 29.Bf3 Rf2 30.Nf7+ Kg7 31.Ne5 Ra2
+- (4.34) Depth: 44 00:00:17 158mN, tb=583517
1...Qe4 2.e8Q+ Qxe8 3.Nxe8 Rxc4 4.Kxh3 Rc2 5.b3 Rxf2 6.Bd5 c4 7.bxc4 Rh2+ 8.Kg4 Rh4+ 9.Kf5 Rxc4 10.Be4 Ra4 11.Nd6 Ra6 12.Ke5 Ra5+ 13.Kf4 Ra6 14.Nf7+ Kg8 15.Ng5 Rxh6 16.Bxh7+ Kg7 17.Bd3 Rb6 18.Nf3 Kh6 19.Be4 Rb4 20.Ne5 Rb2 21.Nf7+ Kg7 22.Nd6 Kh6 23.Nf5+ Kg6 24.Nd4+ Kf6 25.Nc2 Ra2 26.g4 Ra4 27.Ne3 Ra1 28.Nd5+ Kg7 29.Nc7 Ra4 30.Ne6+
+- (4.30) Depth: 45 00:00:19 168mN, tb=645854
1...Qxg3+ 2.fxg3 Rc2+ 3.Kxh3 Rh2+ 4.Kg4 Rh4+ 5.Kf5 Rf4+ 6.Ke5 Re4+ 7.Kd6 Re6+ 8.Kxc5 Rc6+ 9.Kd4 Rxc4+ 10.Ke5 Re4+ 11.Kd6 Re6+ 12.Kc5 Rc6+ 13.Kb4 Rc4+ 14.Kb3 Rc3+ 15.Ka2 Ra3+ 16.Kb1 Ra1+ 17.Kc2 Rc1+ 18.Kd3 Rc3+ 19.Ke4 Rc4+
= (0.00) Depth: 46 00:00:26 242mN, tb=899273

Stockfish or ShashChess has no clue.

Second example:

[d]k7/7p/2p5/2rp1PP1/pp6/7p/5K1P/4R3 w - - 0 1

Analysis by Obsidian 15.0 JA:
...
1.f6 d4 2.Kf3 d3 3.Ke3 Rxg5 4.Rf1 Rg8 5.Kxd3 Rf8 6.Kc4 b3 7.Ra1 Rxf6 8.Rxa4+ Kb7 9.Rb4+ Kc7
-+ (-1.95) Depth: 15 00:00:00 1482kN, tb=161
1.f6 d4 2.Kf3 Rxg5 3.Ke4 Rg8 4.Kxd4 Rf8 5.Rf1 Kb7 6.Kc4 b3 7.Kb4 b2 8.Rb1 Rxf6 9.Rxb2 Rf4+ 10.Ka5+ Kc8 11.Rc2 Kd7 12.Rc3 h5 13.Rxh3
-+ (-3.33) Depth: 16 00:00:00 4202kN, tb=1077
1.f6 d4 2.Kf3 Rxg5 3.Ke4 Rg8 4.Kxd4 Rf8 5.Rf1 Kb7 6.Kc4 b3 7.Kb4 b2 8.Rb1 Rxf6 9.Rxb2 Rf4+ 10.Kc5+ Kc7 11.Re2 a3 12.Re7+ Kb8 13.Re8+
1.Kf3 d4 2.Kf4 d3 3.f6 d2 4.Rd1 Rb5 5.Rxd2 Rb8 6.Ra2 a3 7.Ke5 Kb7 8.Kd6 Kb6 9.f7 Kb5 10.Rf2 Rf8 11.Rf5+ Ka4 12.Rf2 b3 13.Rf4+ Kb5 14.Rf5+
-+ (-5.25) Depth: 22 00:00:06 55614kN, tb=35359
1.Ke3 d4+ 2.Kf4 d3 3.f6 d2 4.Rd1 Rb5 5.Rxd2 Rb8 6.Ra2 a3 7.Ke5 Kb7 8.Kd6 Kb6 9.f7 Kb5 10.Ra1 c5 11.Ke7 Ka4 12.Rf1 b3
-+ (-5.64) Depth: 23 00:00:09 80429kN, tb=52959
1.g6 d4 2.Re5 Rxe5 3.g7 Rxf5+ 4.Kg1 Rg5+ 5.Kh1 Rd5 6.g8Q+ Kb7 7.Qf8 d3 8.Qe7+ Kc8 9.Qe8+ Kc7 10.Qe7+ Rd7 11.Qe3 Kb7 12.Qe8 Rd4 13.Qe5 Rc4 14.Kg1
-+ (-1.72) Depth: 24 00:00:10 91292kN, tb=59907
1.g6 d4 2.Re5 Rxe5 3.g7 Rxf5+ 4.Kg1 Rg5+ 5.Kh1 Rc5 6.g8Q+ Kb7 7.Kg1 b3 8.Qg7+ Kb6 9.Qxd4 Kb5 10.Kf1 Rc2 11.Qe5+ c5 12.Qe4 h5 13.Qe8+ Kb4 14.Qe1+
-/+ (-1.16) Depth: 25 00:00:10 92509kN, tb=60028
1.g6 d4 2.Re5 Rxe5 3.g7 Rxf5+ 4.Kg1 Rg5+ 5.Kh1 Ka7 6.g8Q Rc5 7.Kg1 Ka6 8.Qb8 Ka5 9.Qa7+ Kb5 10.Kf1 b3 11.Qb7+ Kc4 12.Qa7 Rb5 13.Ke2 b2 14.Qxa4+ Rb4 15.Qc2+
=/+ (-0.59) Depth: 26 00:00:10 95221kN, tb=60548
1.g6 d4 2.Re5 Rxe5 3.g7 Rxf5+ 4.Kg1 Rg5+ 5.Kh1 Rc5 6.g8Q+ Kb7 7.Kg1 Ka6 8.Qb8 Ka5 9.Kf1 b3 10.Qd8+ Kb5 11.Qxd4 Rc4 12.Qd6 Rc2 13.Qb8+ Kc4 14.Qf4+ Kc3 15.Qe5+ Kb4 16.Qe1+ Rc3
=/+ (-0.37) Depth: 27 00:00:11 97549kN, tb=60794
FEN: 7k/4PBNp/7P/2p5/2P5/2rq2Pp/1P3P1K/8 b - - 0 1

Stockfish_25020518_x64_avx2:
Available processors: 0-7
Using 6 threads
info string NNUE evaluation using nn-1c0000000000.nnue (133MiB, (22528, 3072, 15, 32, 1))
info string NNUE evaluation using nn-37f18f62d772.nnue (6MiB, (22528, 128, 15, 32, 1))
1/6 00:00 423 423k -5.00 Qd3-e2 e7-e8Q+ Qe2xe8 Ng7xe8
2/5 00:00 878 878k -5.00 Qd3-e2 e7-e8Q+ Qe2xe8 Ng7xe8
3/5 00:00 1k 1,055k -5.00 Qd3-e2 e7-e8Q+ Qe2xe8
4/5 00:00 1k 1,166k -4.15 Qd3-e2 e7-e8Q+ Qe2xe8 Ng7xe8
5/7 00:00 1k 1,408k -3.91 Qd3-e2 e7-e8Q+ Qe2xe8 Ng7xe8 Rc3-c2
6/7 00:00 2k 1,939k -3.47 Qd3-e2 e7-e8Q+ Qe2xe8 Ng7xe8 Rc3-c2
7/9 00:00 3k 2,594k -3.26 Qd3-e2 e7-e8Q+ Qe2xe8 Bf7xe8 Rc3-c2 Kh2xh3 Rc2-e2
8/12 00:00 3k 3,108k -3.31 Qd3-e2 e7-e8Q+ Qe2xe8 Bf7xe8 Rc3-c2 Kh2xh3 Rc2xf2 Be8-c6
9/16 00:00 5k 2,703k -3.14 Qd3-e2 e7-e8Q+ Qe2xe8 Bf7xe8 Rc3-c2 Kh2xh3 Rc2xc4 f2-f4 Rc4-b4 b2-b3
10/18 00:00 12k 3,028k -2.94 Qd3-e2 e7-e8Q+ Qe2xe8 Ng7xe8 Rc3-c2 Kh2xh3 Rc2-e2
11/20 00:00 20k 2,459k -3.14 Qd3-e2 e7-e8Q+ Qe2xe8 Ng7xe8 Rc3-c2 Bf7-d5 Rc2xf2+ Kh2xh3 Rf2-f6 Kh3-g2 Rf6-b6 Kg2-f3 Rb6-e6 Ne8-c7 Re6-b6 Nc7-b5 Rb6-f6+ Kf3-e3
12/21 00:00 21k 2,636k -2.86 Qd3-e2 e7-e8Q+ Qe2xe8 Ng7xe8 Rc3-f3 Bf7-d5 Rf3xf2+ Kh2xh3 Rf2-f6 Kh3-h4 Rf6-f4+ g3-g4
13/22 00:00 38k 2,742k -2.85 Qd3-e4 e7-e8Q+ Qe4xe8 Ng7xe8 Rc3xc4 Kh2xh3 Rc4-c2 Bf7-d5 Rc2xb2 Ne8-d6
14/26 00:00 96k 1,677k -2.99 Qd3-e2 e7-e8Q+ Qe2xe8 Ng7xe8 Rc3xc4 b2-b3 Rc4-c2 Kh2xh3 Rc2xf2 Bf7-d5 Rf2-f5 Ne8-c7 Rf5-f6 Bd5-c4 Rf6xh6+ Kh3-g2 Rh6-f6 Nc7-e6 Rf6-f5 g3-g4 Rf5-f6 Kg2-g3
15/34 00:00 157k 1,743k -2.96 Qd3-e4 e7-e8R+ Qe4xe8 Ng7xe8 Rc3xc4 Kh2xh3 Rc4-c2 b2-b3 Rc2xf2 Bf7-d5 Rf2-f5 Ne8-c7 Rf5-h5+ Kh3-g4 Rh5xh6 Nc7-e6 Rh6-g6+ Kg4-f4
16/33 00:00 387k 2,025k -2.67 Qd3-e2 e7-e8Q+ Qe2xe8 Ng7xe8 Rc3xc4 b2-b3 Rc4-c2 Bf7-c4 Rc2xf2+ Kh2xh3 Rf2-h2+ Kh3-g4 Rh2xh6 Kg4-f5 Rh6-h5+ Kf5-f4 Rh5-h6 g3-g4 Rh6-h2 Kf4-g5 Rh2-h3 Ne8-d6 Rh3-g3 Kg5-f5 Rg3-f3+ Kf5-e5
17/38 00:00 902k 2,404k -2.37 Qd3-e2 e7-e8R+ Qe2xe8 Ng7xe8 Rc3xc4 Kh2xh3 Rc4-c2 b2-b3 Rc2xf2 Bf7-d5 c5-c4 b3xc4 Rf2-h2+ Kh3-g4 Rh2-h4+ Kg4-f5 Rh4xc4 Bd5-e4 Rc4-d4 Kf5-e5 Rd4-d7 Ne8-d6 Rd7-e7+ Ke5-d5 Re7-a7 g3-g4 Ra7-a5+ Kd5-e6 Ra5-a6 Be4-f5
18/47 00:00 1,114k 2,493k -2.50 Qd3-e2 e7-e8R+ Qe2xe8 Ng7xe8 Rc3xc4 b2-b3 Rc4-c2 Bf7-d5 Rc2xf2+ Kh2xh3 c5-c4 b3xc4 Rf2-h2+ Kh3-g4 Rh2-h4+ Kg4-f5 Rh4xc4 Bd5-e4 Rc4-d4 Kf5-e5 Rd4-a4 Ne8-d6 Ra4-a7 Be4-f5
19/47 00:00 1,248k 2,532k -2.38 Qd3-e2 e7-e8R+ Qe2xe8 Ng7xe8 Rc3xc4 b2-b3 Rc4-c2 Bf7-d5 Rc2xf2+ Kh2xh3 c5-c4 b3xc4 Rf2-h2+ Kh3-g4 Rh2-h4+ Kg4-f5 Rh4xc4 Bd5-e4 Rc4-d4 Kf5-e5 Rd4-d7 Ne8-d6 Rd7-e7+ Ke5-d5 Re7-d7 Kd5-e6 Rd7-a7 g3-g4 Ra7-a5 Be4-f5 Ra5-a6 Ke6-e5 Ra6-a5+ Ke5-f4 Ra5-a4+ Nd6-e4 Ra4-b4 Kf4-e3 Rb4-b3+ Ke3-f2
20/49 00:00 1,732k 2,694k -2.58 Qd3-e2 e7-e8Q+ Qe2xe8 Ng7xe8 Rc3xc4 b2-b3 Rc4-c2 Kh2xh3 Rc2xf2 Bf7-d5 Rf2-f5 Ne8-c7 Rf5-g5 Kh3-g2 c5-c4 b3xc4 Rg5xg3+ Kg2-f2 Rg3-c3 Nc7-e6 Rc3-h3 Ne6-d8 Rh3-c3 Kf2-g2 Rc3-g3+ Kg2-f1 Rg3-c3 Nd8-f7+ Kh8-g8 Kf1-f2
21/41 00:00 2,280k 2,767k -2.65 Qd3-e2 e7-e8Q+ Qe2xe8 Ng7xe8 Rc3xc4 b2-b3 Rc4-c2 Kh2xh3 Rc2xf2 Bf7-d5 Rf2-d2 Ne8-c7 Rd2-d3 Kh3-g2 Rd3-e3 Kg2-f2 Re3-d3 g3-g4 Rd3-d4 g4-g5 c5-c4 Bd5xc4 Rd4-e4
22/45 00:00 2,684k 2,814k -2.73 Qd3-e2 e7-e8Q+ Qe2xe8 Ng7xe8 Rc3xc4 Kh2xh3 Rc4-c2 b2-b3 Rc2xf2 Bf7-d5 Rf2-f5 Ne8-c7 Rf5-f6 Kh3-g2 Rf6-f5 g3-g4 Rf5-f4 Kg2-g3 Rf4-d4 g4-g5 c5-c4 g5-g6 h7xg6 b3xc4 Kh8-h7 Nc7-e6 Rd4xc4 Bd5xc4 Kh7xh6 Kg3-g4
23/47 00:01 2,930k 2,845k -2.76 Qd3-e2 e7-e8Q+ Qe2xe8 Ng7xe8 Rc3xc4 Kh2xh3 Rc4-c2 b2-b3 Rc2xf2 Bf7-d5 Rf2-f5 Ne8-c7 Rf5-g5 Kh3-g2 Rg5-f5 g3-g4 Rf5-f4 Kg2-g3 Rf4-d4 g4-g5 c5-c4 g5-g6
24/56 00:01 4,140k 2,877k -2.62 Qd3-e2 e7-e8Q+ Qe2xe8 Ng7xe8 Rc3xc4 Kh2xh3 Rc4-c2 b2-b3 Rc2xf2 Bf7-d5 Rf2-f5 Ne8-c7 Rf5-g5 Kh3-g2 Rg5-f5 Bd5-c4 Rf5-f2+ Kg2-h3 Rf2-h2+ Kh3-g4 Rh2-h4+ Kg4-f5 Rh4-g4 Nc7-e6 Rg4xg3 Ne6-d8 Rg3-e3 Nd8-f7+ Kh8-g8 Kf5-f6 Re3-e1 Nf7-d8+ Kg8-h8 Bc4-e6 Re1-e2 Kf6-e7 Re2-d2 Nd8-f7+ Kh8-g8 Be6-c4 Rd2-d4 Nf7-g5+ Kg8-h8 Ng5-e6 Rd4-h4
25/50 00:01 5,509k 2,905k -2.70 Qd3-e2 e7-e8Q+ Qe2xe8 Ng7xe8 Rc3xc4 Kh2xh3 Rc4-c2 b2-b3 Rc2xf2 Bf7-d5 Rf2-f5 Ne8-c7 Rf5-g5 Kh3-g2 c5-c4 b3xc4 Rg5xg3+ Kg2-f2 Rg3-h3 c4-c5 Rh3xh6 Kf2-e3 Kh8-g7 Ke3-d4 Kg7-f8 c5-c6 Rh6xc6 Bd5xc6 Kf8-e7 Bc6-d5 Ke7-f8 Nc7-b5
26/67 00:02 7,985k 3,087k -2.56 Qd3-e2 e7-e8Q+ Qe2xe8 Ng7xe8 Rc3xc4 Kh2xh3 Rc4-c2 b2-b3 Rc2xf2 Bf7-d5 Rf2-d2 Ne8-c7 Rd2-d3 Kh3-g2 Rd3-e3 Kg2-f2 Re3-d3 g3-g4 Rd3-d4 g4-g5 c5-c4 Bd5xc4 Rd4-f4+ Kf2-e3 Rf4-f3+ Ke3-e4 Rf3xb3 g5-g6 Rb3-g3 g6-g7+ Rg3xg7 h6xg7+ Kh8xg7 Ke4-f5 h7-h5 Nc7-e6+ Kg7-f7 Kf5-e5 h5-h4 Ne6-d4+ Kf7-e7 Bc4-b5 h4-h3
27/61 00:03 10,280k 3,097k -2.50 Qd3-e2 e7-e8Q+ Qe2xe8 Ng7xe8 Rc3xc4 Kh2xh3 Rc4-c2 b2-b3 Rc2xf2 Bf7-d5 Rf2-d2 Bd5-c4 Rd2-g2 Bc4-b5 Rg2-b2 Bb5-a4 Rb2-e2 Kh3-g4 Re2-e6 Kg4-f5 Re6xh6 Ba4-b5 Rh6-h3 Kf5-f4 h7-h5 Bb5-c4 h5-h4 g3xh4 Rh3xh4+ Kf4-e5 Rh4-h3 Ne8-c7 Rh3-e3+ Ke5-f6 Re3-c3 Kf6-e6
28/64 00:04 13,913k 3,077k -2.47 Qd3-e2 e7-e8R+ Qe2xe8 Ng7xe8 Rc3xc4 Kh2xh3 Rc4-c2 b2-b3 Rc2xf2 Bf7-d5 Rf2-f5 Ne8-c7 Rf5-g5 Kh3-g2 c5-c4 b3xc4 Rg5xg3+ Kg2-f2 Rg3-h3 Nc7-e6 Rh3xh6 c4-c5 Rh6-h5 Ne6-f4 Rh5-h2+ Bd5-g2 Rh2-h6 Kf2-e3 Kh8-g7
29/74 00:05 16,521k 3,074k -2.43 Qd3-e2 e7-e8R+ Qe2xe8 Ng7xe8 Rc3xc4 b2-b3 Rc4-c2 Kh2xh3 Rc2xf2 Bf7-d5 Rf2-f5 Ne8-c7 Rf5-g5 Kh3-g2 c5-c4 b3xc4 Rg5xg3+ Kg2-f2 Rg3-h3 Nc7-e6 Rh3xh6 c4-c5 Rh6-h5 Ne6-f4 Rh5-h2+ Bd5-g2 Rh2-h6 Bg2-b7
30/73 00:07 21,648k 2,971k -2.40 Qd3-e2 e7-e8R+ Qe2xe8 Ng7xe8 Rc3xc4 b2-b3 Rc4-c2 Kh2xh3 Rc2xf2 Bf7-d5 Rf2-d2 Bd5-c4 Rd2-g2 Bc4-b5 Rg2-b2 Bb5-a4 c5-c4 b3xc4 Rb2-b4 Ba4-d7 Rb4xc4 Ne8-d6 Rc4-d4 Nd6-f7+ Kh8-g8 Bd7-e6 Kg8-f8 Nf7-g5 Kf8-e7 Be6-f5 Rd4-d6 Kh3-g4 Rd6xh6 Bf5xh7 Ke7-d8
31/73 00:10 29,041k 2,874k -2.41 Qd3-e4 e7-e8Q+ Qe4xe8 Ng7xe8 Rc3xc4 Kh2xh3 Rc4-c2 b2-b3 Rc2xf2 Bf7-d5 Rf2-f5 Ne8-c7 Rf5-g5 Kh3-h4 Rg5-g6 Bd5-f7 Rg6-d6 Bf7-c4 Rd6xh6+ Kh4-g4 Rh6-g6+ Kg4-f4 Rg6-f6+ Kf4-e4 Rf6-g6 Ke4-f3 Kh8-g7 Nc7-e6+ Kg7-f6 Ne6xc5 h7-h5 Nc5-d3 Kf6-g5 Nd3-f2 Rg6-b6 Kf3-e4
32/72 00:12 33,591k 2,790k -2.32 Qd3-e4 e7-e8Q+ Qe4xe8 Ng7xe8 Rc3xc4 Kh2xh3 Rc4-c2 b2-b3 Rc2xf2 Bf7-d5 Rf2-f5 Ne8-c7 Rf5-g5 Kh3-h4 Rg5-g6 Bd5-f7 Rg6-f6 Bf7-c4 Rf6xh6+ Kh4-g5 Rh6-g6+ Kg5-f4 Rg6-f6+ Kf4-g4 Rf6-g6+ Kg4-f3 Kh8-g7 Kf3-f4 h7-h5 Nc7-e6+ Kg7-f6 Ne6xc5 Rg6-g4+ Kf4-f3 Rg4-g7 Nc5-d3 Rg7-h7 Kf3-e4 Kf6-g5 Nd3-f2 Rh7-b7 Ke4-e5 Rb7-b6 Bc4-e6 Rb6-b4 Nf2-e4+ Kg5-g6 Be6-d5 Rb4-b6 Ne4-f2 Rb6-b8 Ke5-d4 Kg6-f5 Kd4-c5 Rb8-c8+ Bd5-c6 Rc8-g8 b3-b4 Rg8xg3 Bc6-d5 h5-h4
33/79 00:17 46,882k 2,757k -2.39 Qd3-e4 e7-e8Q+ Qe4xe8 Ng7xe8 Rc3xc4 Kh2xh3 Rc4-c2 f2-f4 Rc2xb2 Kh3-g4 Rb2-b8 Ne8-d6 Rb8-b6 Nd6-c4 Rb6-f6 Bf7-e8 Rf6xh6 f4-f5 Kh8-g7 Kg4-f4 Rh6-h1 Be8-c6 Rh1-f1+ Kf4-e5 Rf1-g1 f5-f6+ Kg7-f8 Ke5-f5 Rg1xg3 Nc4-e5 Rg3-g1 Ne5-d7+ Kf8-f7 Bc6-d5+ Kf7-e8 Nd7-e5 Rg1-f1+ Kf5-e6 Ke8-f8 Ne5-d7+ Kf8-e8 Bd5-c4
34/66- 00:21 61,392k 2,847k -2.97 Qd3-e4 e7-e8Q+
34/66- 00:30 83,717k 2,771k -3.28 Qd3-e4 e7-e8Q+
34/112+ 00:47 148,426k 3,130k -3.02 Qd3xg3+
34/112+ 00:54 221,708k 4,041k -1.74 Qd3xg3+
34/122 00:56 235,166k 4,146k -1.34 Qd3xg3+ f2xg3 Rc3-c2+ Kh2xh3 Rc2-h2+ Kh3-g4 Rh2-h4+ Kg4-g5 Rh4-g4+ Kg5-f6 Rg4-f4+ Kf6-e6 Rf4-e4+ Ke6-d6 Re4-e6+ Kd6xc5 Re6-c6+ Kc5-d5 Rc6-c5+ Kd5-e4 Rc5xc4+ Ke4-e5 Rc4-e4+ Ke5-d5 Re4-d4+ Kd5-c5 Rd4-d5+ Kc5-b4 Rd5-b5+ Kb4-c4 Rb5-b4+ Kc4-d3 Rb4-b3+ Kd3-e4 Rb3-e3+ Ke4-f5 Re3-f3+ Kf5-g5 Rf3xg3+ Kg5-f6 Rg3-f3+ Kf6-e5 Rf3-e3+ Ke5-d6 Re3-e6+ Kd6-c5 Re6-c6+ Kc5-d4
35/19+ 00:57 240,082k 4,174k -1.67 Qd3xg3+
35/27+ 00:58 244,729k 4,202k -1.56 Qd3xg3+
35/92+ 01:04 305,101k 4,700k -0.58 Qd3xg3+
35/117 01:06 321,287k 4,807k -0.58 Qd3xg3+ f2xg3 Rc3-c2+ Kh2xh3 Rc2-h2+ Kh3-g4 Rh2-h4+ Kg4-g5 Rh4-g4+ Kg5-f6 Rg4-f4+ Kf6-e6 Rf4-e4+ Ke6-d6 Re4-e6+ Kd6-d5 Re6-d6+ Kd5-e4 Rd6-d4+ Ke4-f5 Rd4-f4+ Kf5-e5 Rf4-e4+ Ke5-d5 Re4-e5+ Kd5-c6 Re5-e6+ Kc6xc5 Re6-c6+ Kc5-d5 Rc6-c5+ Kd5-d4 Rc5xc4+ Kd4-e3 Rc4-e4+ Ke3-d2 Re4-d4+ Kd2-c1 Rd4-d1+ Kc1-c2 Rd1-d2+ Kc2-c3 Rd2-d3+ Kc3-c4 Rd3-c3+ Kc4-d5 Rc3-d3+ Kd5-c5 Rd3-d5+ Kc5-c6
36/25+ 01:07 322,328k 4,807k -0.69 Qd3xg3+
36/25+ 01:07 323,361k 4,805k -0.66 Qd3xg3+
36/38+ 01:10 341,851k 4,881k -0.43 Qd3xg3+
36/106 01:10 343,185k 4,886k -0.40 Qd3xg3+ f2xg3 Rc3-c2+ Kh2xh3 Rc2-h2+ Kh3-g4 Rh2-h4+ Kg4-g5 Rh4-g4+ Kg5-f5 Rg4-f4+ Kf5-e5 Rf4-e4+ Ke5-d6 Re4-e6+ Kd6xc5 Re6-c6+ Kc5-d4 Rc6xc4+ Kd4-e5 Rc4-e4+ Ke5-d5 Re4-e5+ Kd5-d4 Re5-e4+ Kd4-c5 Re4-c4+ Kc5-d6 Rc4-c6+ Kd6-e5 Rc6-e6+ Ke5-f5 Re6-e5+ Kf5-f4 Re5-f5+ Kf4-e4 Rf5-f2
37/23+ 01:12 362,348k 4,970k -0.43 Qd3xg3+
37/39+ 01:13 366,083k 4,985k -0.41 Qd3xg3+
37/144 01:15 380,307k 5,050k -0.39 Qd3xg3+ f2xg3 Rc3-c2+ Kh2xh3 Rc2-h2+ Kh3-g4 Rh2-h4+ Kg4-g5 Rh4-g4+ Kg5-f6 Rg4-f4+ Kf6-e5 Rf4-e4+ Ke5-d6 Re4-e6+ Kd6xc5 Re6-c6+ Kc5-d4 Rc6xc4+ Kd4-e5 Rc4-e4+ Ke5-d5 Re4-e5+ Kd5-c4 Re5-c5+ Kc4-d3 Rc5-c3+ Kd3-e2 Rc3-c2+ Ke2-e3 Rc2-c3+ Ke3-e4 Rc3-e3+ Ke4-d4 Re3-d3+ Kd4-c5 Rd3-d5+ Kc5-b4 Rd5-b5+ Kb4-c3 Rb5-b3+ Kc3-c2 Rb3-c3+ Kc2-d1 Rc3-d3+ Kd1-e1 Rd3-e3+ Ke1-f2 Re3-e2+ Kf2-f3 Re2-e3+ Kf3-g2 Re3xg3+ Kg2-f2 Rg3-f3+ Kf2-e2 Rf3-f2+ Ke2-e3 Rf2-e2+ Ke3-d3 Re2-e3+ Kd3-c4 Re3-e4+ Kc4-b5
38/63+ 01:16 388,590k 5,075k -0.39 Qd3xg3+
38/63+ 01:17 393,126k 5,090k -0.38 Qd3xg3+
38/149 01:19 409,705k 5,153k -0.36 Qd3xg3+ f2xg3 Rc3-c2+ Kh2xh3 Rc2-h2+ Kh3-g4 Rh2-h4+ Kg4-g5 Rh4-g4+ Kg5-f6 Rg4-f4+ Kf6-e5 Rf4-e4+ Ke5-d6 Re4-e6+ Kd6xc5 Re6-c6+ Kc5-d5 Rc6-c5+ Kd5-e4 Rc5xc4+ Ke4-e5 Rc4-e4+ Ke5-d6 Re4-e6+ Kd6-c5 Re6-c6+ Kc5-b4 Rc6-c4+ Kb4-b5 Rc4-c5+ Kb5-a4 Rc5-c4+ Ka4-b3 Rc4-c3+ Kb3-a2 Rc3-d3
39/62+ 01:20 416,843k 5,175k -0.36 Qd3xg3+
39/69+ 01:21 427,644k 5,218k -0.34 Qd3xg3+
39/127 01:28 476,420k 5,397k -0.32 Qd3xg3+ f2xg3 Rc3-c2+ Kh2xh3 Rc2-h2+ Kh3-g4 Rh2-h4+ Kg4-g5 Rh4-g4+ Kg5-f5 Rg4-g5+ Kf5-f6 Rg5-f5+ Kf6-e6 Rf5-e5+ Ke6-d6 Re5-e6+ Kd6xc5 Re6-c6+ Kc5-b4 Rc6xc4+ Kb4-a3 Rc4-a4+ Ka3-b3 Ra4-b4+ Kb3-c2 Rb4-c4+ Kc2-d2 Rc4-d4+ Kd2-e1 Rd4-d1+ Ke1-f2 Rd1-d2+ Kf2-f3 Rd2-d3+ Kf3-g4 Rd3xg3+ Kg4-f5 Rg3-f3+ Kf5-e5
40/128 01:30 489,768k 5,426k -0.33 Qd3xg3+ f2xg3 Rc3-c2+ Kh2xh3 Rc2-h2+ Kh3-g4 Rh2-h4+ Kg4-g5 Rh4-g4+ Kg5-f6 Rg4-f4+ Kf6-e5 Rf4-e4+ Ke5-d6 Re4-e6+ Kd6xc5 Re6-c6+ Kc5-b4 Rc6xc4+ Kb4-a3 Rc4-a4+ Ka3-b3 Ra4-a3+ Kb3-b4 Ra3-a4+ Kb4-c3 Ra4-c4+ Kc3-d2 Rc4-d4+ Kd2-e3 Rd4-e4+ Ke3-f3 Re4-e3+ Kf3-g4 Re3xg3+ Kg4-f4 Rg3-f3+ Kf4-e5 Rf3-e3+ Ke5-d4 Re3-e4+ Kd4-c5 Re4-c4+ Kc5-d6 Rc4-c6+ Kd6-d5 Rc6-d6+ Kd5-c4 Rd6-c6+ Kc4-b3 Rc6-b6+ Kb3-c3 Rb6-b3+ Kc3-d4 Rb3-d3+ Kd4-c5 Rd3-d5+ Kc5-b4 Rd5-b5+ Kb4-c4 Rb5-c5+ Kc4-b3 Rc5-b5+ Kb3-c2 Rb5xb2+ Kc2-d3 Rb2-b3+ Kd3-c4
41/130+ 01:32 505,657k 5,453k -0.32 Qd3xg3+
41/130 01:34 517,421k 5,482k -0.32 Qd3xg3+ f2xg3 Rc3-c2+ Kh2xh3 Rc2-h2+ Kh3-g4 Rh2-h4+ Kg4-g5 Rh4-g4+ Kg5-f6 Rg4-f4+ Kf6-e6 Rf4-e4+ Ke6-d7 Re4xe7+ Kd7-c6 Re7-c7+ Kc6-d6 Rc7-d7+ Kd6xc5 Rd7-c7+ Kc5-d5 Rc7-d7+ Kd5-e5 Rd7-d5+ Ke5-e6 Rd5-d6+ Ke6-f5 Rd6-d5+ Kf5-f6 Rd5-f5+ Kf6-e7 Rf5xf7+ Ke7-d6 Rf7-b7 c4-c5 Rb7xb2 Ng7-e6 Rb2-d2+ Kd6-e5 Rd2-c2 Ke5-d5 Rc2-d2+ Ne6-d4 Rd2-f2
42/100 01:35 523,319k 5,499k -0.32 Qd3xg3+ f2xg3 Rc3-c2+ Kh2xh3 Rc2-h2+ Kh3-g4 Rh2-h4+ Kg4-g5 Rh4-g4+ Kg5-f6 Rg4-f4+ Kf6-e6 Rf4-e4+ Ke6-d7 Re4xe7+ Kd7-c6 Re7-c7+ Kc6-d6 Rc7-d7+ Kd6xc5 Rd7-c7+ Kc5-d5 Rc7-d7+ Kd5-e5 Rd7-d5+ Ke5-f6 Rd5-f5+ Kf6-e7 Rf5xf7+ Ke7-d6 Rf7-b7 c4-c5 Rb7xb2 c5-c6 Rb2-d2+ Kd6-c5 Rd2-c2+ Kc5-b6 Rc2-b2+ Kb6-c7 Rb2-g2 Ng7-f5 Rg2-f2 Nf5-d6 Rf2-g2 Kc7-d7 Rg2xg3 c6-c7 Rg3-c3 c7-c8Q+ Rc3xc8 Nd6xc8 Kh8-g8 Kd7-e8 Kg8-h8 Nc8-b6 Kh8-g8 Nb6-d7 Kg8-h8 Ke8-e7 Kh8-g8 Ke7-e6 Kg8-h8 Ke6-f6 Kh8-g8 Kf6-e7 Kg8-h8 Ke7-e6
43/108+ 01:39 548,640k 5,536k -0.31 Qd3xg3+
43/108+ 01:39 553,933k 5,548k -0.29 Qd3xg3+
43/118+ 01:47 607,498k 5,667k -0.21 Qd3xg3+
43/124 01:47 613,606k 5,682k -0.24 Qd3xg3+ f2xg3 Rc3-c2+ Kh2xh3 Rc2-h2+ Kh3-g4 Rh2-h4+ Kg4-f3 Rh4-f4+ Kf3-e2 Rf4-f2+ Ke2-d3 Rf2-d2+ Kd3-e4 Rd2-d4+ Ke4-e5 Rd4-e4+ Ke5-d6 Re4-e6+ Kd6-d5 Re6-d6+ Kd5-e5 Rd6-e6+ Ke5-f4 Re6-e4+ Kf4-g5 Re4-g4+ Kg5-f5 Rg4-g5+ Kf5-e6 Rg5-e5+ Ke6-d7 Re5xe7+ Kd7-d6 Re7-d7+ Kd6xc5 Rd7-c7+ Kc5-d5 Rc7-c5+ Kd5-e6 Rc5-c6+ Ke6-e5 Rc6-e6+ Ke5-f5 Re6-f6+ Kf5-e4 Rf6-e6+ Ke4-f3 Re6-f6+ Kf3-e3 Rf6-e6+ Ke3-f2 Re6-f6+ Kf2-e1 Rf6-e6+ Ke1-f1 Re6-e1+ Kf1-f2 Re1-e2+ Kf2-f3 Re2-e3+ Kf3-f4 Re3-e4+ Kf4-g5 Re4-e5+ Kg5-g4
44/8- 01:48 614,303k 5,683k -0.25 Qd3xg3+ f2xg3
44/20- 01:48 615,676k 5,683k -0.28 Qd3xg3+ f2xg3
44/36+ 01:48 619,300k 5,692k -0.26 Qd3xg3+
44/106+ 01:54 660,008k 5,746k -0.07 Qd3xg3+
44/135 01:57 676,802k 5,737k -0.04 Qd3xg3+ f2xg3 Rc3-c2+ Kh2xh3 Rc2-h2+ Kh3-g4 Rh2-h4+ Kg4-f3 Rh4-f4+ Kf3-e2 Rf4-f2+ Ke2-d3 Rf2-d2+ Kd3-e4 Rd2-d4+ Ke4-f5 Rd4-f4+ Kf5-e5 Rf4-e4+ Ke5-d6 Re4-e6+ Kd6xc5 Re6-c6+ Kc5-d4 Rc6xc4+ Kd4-d3 Rc4-c3+ Kd3-e4 Rc3-c4+ Ke4-f3 Rc4-c3+ Kf3-f4 Rc3-f3+ Kf4-e4 Rf3-f4+ Ke4-d3 Rf4-f3+ Kd3-d4 Rf3-f4+ Kd4-c5 Rf4-c4+ Kc5-d6 Rc4-c6+ Kd6-e5 Rc6-e6+ Ke5-f5 Re6-f6+ Kf5-g4 Rf6-f4+ Kg4-h3 Rf4-h4+ Kh3-g2 Rh4-h2+ Kg2-f3 Rh2-f2+ Kf3-e3 Rf2-e2+ Ke3-f4 Re2-e4+ Kf4-f3 Re4-e3+ Kf3-g4 Re3xg3+ Kg4-f4 Rg3-f3+ Kf4-e5 Rf3-e3+ Ke5-d4 Re3-e4+ Kd4-c5 Re4-c4+ Kc5-b6 Rc4-b4+ Kb6-c7 Rb4-c4+ Kc7-d8 Rc4-c8+ Kd8-d7 Rc8-c7+ Kd7-d6 Rc7-c6+ Kd6-e5 Rc6-e6+ Ke5-f5 Re6-e5+ Kf5-f4
45/55+ 01:57 676,810k 5,737k -0.07 Qd3xg3+
45/63+ 01:58 676,885k 5,736k -0.05 Qd3xg3+
45/63+ 01:59 681,451k 5,725k -0.04 Qd3xg3+
45/136 02:00 692,552k 5,730k -0.02 Qd3xg3+ f2xg3 Rc3-c2+ Kh2xh3 Rc2-h2+ Kh3-g4 Rh2-h4+ Kg4-f3 Rh4-f4+ Kf3-e2 Rf4-f2+ Ke2-d3 Rf2-d2+ Kd3-e4 Rd2-d4+ Ke4-f5 Rd4-f4+ Kf5-e5 Rf4-e4+ Ke5-d5 Re4-e5+ Kd5-c6 Re5-e6+ Kc6xc5 Re6-c6+ Kc5-d5 Rc6-c5+ Kd5-e4 Rc5xc4+ Ke4-d5 Rc4-c5+ Kd5-d4 Rc5-c4+ Kd4-d3 Rc4-c3+ Kd3-d2 Rc3-c2+ Kd2-e3 Rc2-c3+ Ke3-e2 Rc3-c2+ Ke2-f3 Rc2-c3+ Kf3-g2 Rc3xg3+ Kg2-f2 Rg3-g2+ Kf2-f3 Rg2-g3+ Kf3-e2 Rg3-g2+ Ke2-d3 Rg2-g3+ Kd3-d4 Rg3-g4+ Kd4-c3 Rg4-c4+ Kc3-d2 Rc4-d4+ Kd2-c2 Rd4-d2+ Kc2-b3 Rd2xb2+ Kb3-c4 Rb2-b4+ Kc4-c3 Rb4-b3+ Kc3-c2
46/53+ 02:00 692,895k 5,730k -0.02 Qd3xg3+
46/126 02:02 700,856k 5,737k -0.01 Qd3xg3+ f2xg3 Rc3-c2+ Kh2xh3 Rc2-h2+ Kh3-g4 Rh2-h4+ Kg4-f5 Rh4-f4+ Kf5-e5 Rf4-e4+ Ke5-f6 Re4-f4+ Kf6-e6 Rf4-f6+ Ke6-d5 Rf6-d6+ Kd5-e4 Rd6-e6+ Ke4-f3 Re6-e3+ Kf3-f4 Re3-e4+ Kf4-g5 Re4-e5+ Kg5-h4 Re5-e4+ Kh4-h3 Re4-h4+ Kh3-g2 Rh4-h2+ Kg2-f3 Rh2-f2+ Kf3-e4 Rf2-e2+ Ke4-d5 Re2-e5+ Kd5-c6 Re5-e6+ Kc6xc5 Re6-c6+ Kc5-d5 Rc6-c5+ Kd5-e4 Rc5xc4+ Ke4-f5
47/119 02:02 701,274k 5,738k -0.01 Qd3xg3+ f2xg3 Rc3-c2+ Kh2xh3 Rc2-h2+ Kh3-g4 Rh2-h4+ Kg4-f5 Rh4-f4+ Kf5-e5 Rf4-e4+ Ke5-f6 Re4-f4+ Kf6-e6 Rf4-f6+ Ke6-d5 Rf6-d6+ Kd5xc5 Rd6-c6+ Kc5-d5 Rc6-c5+ Kd5-e4 Rc5xc4+ Ke4-e5 Rc4-e4+ Ke5-d6 Re4-e6+ Kd6-c5 Re6-c6+ Kc5-b4 Rc6-c4+ Kb4-a3 Rc4-a4+ Ka3-b3 Ra4-a3+ Kb3-b4 Ra3-b3+ Kb4-c5 Rb3-b5+ Kc5-c4 Rb5-b4+ Kc4-d5 Rb4-d4+ Kd5-c6 Rd4-c4+ Kc6-d6 Rc4-c6+ Kd6-e5 Rc6-e6+ Ke5-f5 Re6-f6+ Kf5-g5 Rf6-f5+ Kg5-h4 Rf5-f4+ Kh4-h3 Rf4-h4+ Kh3-g2 Rh4-h2+ Kg2-f3 Rh2-f2+ Kf3-e4 Rf2-f4+ Ke4-e3 Rf4-e4+ Ke3-f3 Re4-e3+ Kf3-g4 Re3-e4+ Kg4-g5
48/122+ 02:05 726,963k 5,784k 0.00 Qd3xg3+
48/122 02:05 727,032k 5,783k 0.00 Qd3xg3+ f2xg3 Rc3-c2+ Kh2xh3 Rc2-h2+ Kh3-g4 Rh2-h4+ Kg4-f5 Rh4-f4+ Kf5-e5 Rf4-e4+ Ke5-d5 Re4-d4+ Kd5xc5 Rd4xc4+ Kc5-d6 Rc4-c6+ Kd6-e5 Rc6-e6+ Ke5-d4 Re6-e4+ Kd4-d5 Re4-d4+ Kd5-e5 Rd4-e4+ Ke5-d6 Re4-e6+ Kd6-d5 Re6-e5+ Kd5-c4 Re5-e4+ Kc4-b3 Re4-b4+ Kb3-c2 Rb4-c4+ Kc2-b1 Rc4-c1+ Kb1-a2 Rc1-a1+ Ka2-b3 Ra1-a3+ Kb3-c2 Ra3-c3+ Kc2-d1 Rc3-c1+ Kd1-e2 Rc1-c2+ Ke2-d3 Rc2-c3+ Kd3-e2

FEN: k7/7p/2p5/2rp1PP1/pp6/7p/5K1P/4R3 w - - 0 1

Stockfish_25020518_x64_avx2:
Available processors: 0-7
Using 6 threads
info string NNUE evaluation using nn-1c0000000000.nnue (133MiB, (22528, 3072, 15, 32, 1))
info string NNUE evaluation using nn-37f18f62d772.nnue (6MiB, (22528, 128, 15, 32, 1))
1/2 00:00 303 303k -1.01 f5-f6
2/6 00:00 542 542k -0.64 f5-f6
3/6 00:00 582 582k -0.55 f5-f6
4/8 00:00 883 883k +0.28 f5-f6 Ka8-b7
5/7 00:00 4k 3,910k -1.76 f5-f6 d5-d4 g5-g6 h7xg6 Re1-e8+ Ka8-b7
6/7 00:00 6k 2,913k -1.81 g5-g6 h7xg6 Re1-e8+ Ka8-b7 f5xg6
7/8 00:00 6k 3,064k -1.40 g5-g6 h7xg6 Re1-e8+ Ka8-b7 f5xg6
8/11 00:00 8k 3,778k -1.17 g5-g6 h7xg6 Re1-e8+ Ka8-a7 f5xg6 Rc5-c2+ Re8-e2
9/16 00:00 26k 2,149k -0.16 g5-g6 h7xg6 f5xg6 Rc5-c2+ Re1-e2 Rc2-c4 Re2-e8+ Ka8-a7
10/18 00:00 55k 2,037k -1.34 g5-g6 h7xg6 f5xg6 d5-d4 Re1-e8+ Ka8-b7 g6-g7 Rc5-f5+ Kf2-e2 Rf5-g5 g7-g8Q Rg5xg8 Re8xg8 a4-a3 Rg8-g7+ Kb7-b6
11/26 00:00 195k 2,054k -2.20 g5-g6 h7xg6 f5xg6 d5-d4 Re1-g1 Rc5-f5+ Kf2-e2 Rf5-f8 Ke2-d3 Rf8-g8 Kd3xd4 a4-a3 Kd4-c4 a3-a2 Rg1-a1 Rg8xg6 Ra1xa2+ Ka8-b7 Kc4xb4
12/25 00:00 242k 2,054k -1.92 f5-f6 d5-d4 Kf2-f3 Rc5xg5 Kf3-e4 Rg5-g8 Re1-b1 b4-b3 Rb1-a1 Ka8-b7 Ra1xa4 c6-c5 Ra4-a3 b3-b2 Ra3-b3+ Kb7-c6 Rb3xb2 Rg8-e8+ Ke4-f5 Kc6-d5
13/28 00:00 538k 2,180k -1.57 Re1-e5 Rc5-c2+ Re5-e2 b4-b3 g5-g6 h7xg6 f5xg6 Rc2xe2+ Kf2xe2 b3-b2 g6-g7 Ka8-a7
14/38 00:00 747k 2,229k -2.19 Re1-e5 Rc5-c2+ Kf2-f3 a4-a3 f5-f6 Rc2-c1 Re5-f5 Rc1-f1+ Kf3-g4 Rf1xf5 Kg4xf5 Ka8-b7 f6-f7 a3-a2 f7-f8Q a2-a1Q Qf8xb4+ Kb7-a6 Qb4-b8 Qa1-f1+ Kf5-e6 Qf1-e2+ Ke6-f6 Qe2-e4 Qb8-b2 Qe4-f4+ Kf6-e6 Qf4-g4+ Ke6-f6
15/46 00:00 1,752k 2,261k -2.51 Re1-e5 a4-a3 f5-f6 a3-a2 f6-f7 Rc5-c2+ Re5-e2 Rc2xe2+ Kf2xe2 a2-a1Q f7-f8Q+ Ka8-a7 Qf8xb4 Ka7-a6 Qb4-b8 Qa1-a4 Qb8-c8+ Ka6-b5 Qc8xh3 Qa4-c2+ Ke2-f1 d5-d4 Qh3-d7 d4-d3 Qd7xh7
16/40 00:01 3,326k 2,319k -2.71 Kf2-e3 d5-d4+ Ke3-e4 Rc5-d5 f5-f6 Rd5-d8 Ke4-d3 Ka8-b7 Kd3-c4 b4-b3 Kc4-b4 Rd8-a8 Kb4-c4 b3-b2 Kc4xd4 a4-a3 Kd4-c3 c6-c5 f6-f7 Ra8-f8 Re1-f1 Kb7-c6 Kc3-c2 c5-c4
17/50 00:02 4,942k 2,355k -2.79 Re1-e5 a4-a3 f5-f6 a3-a2 f6-f7 Rc5-c2+ Re5-e2 Rc2xe2+ Kf2xe2 a2-a1Q f7-f8Q+ Ka8-a7 Qf8-c5+ Ka7-b7 Qc5xb4+ Kb7-a6 Qb4-g4 Qa1-g7
18/60 00:02 6,236k 2,379k -2.96 Re1-e5 a4-a3 f5-f6 a3-a2 f6-f7 Rc5-c2+ Re5-e2 Rc2xe2+ Kf2xe2 a2-a1Q f7-f8Q+ Ka8-a7 Qf8-c5+ Ka7-b7 Qc5xb4+ Kb7-a6 Qb4-b8 Qa1-a4 Ke2-d2 Qa4-d4+ Kd2-e2
19/58 00:04 11,914k 2,446k -3.21 Re1-e5 a4-a3 f5-f6 a3-a2 f6-f7 Rc5-c2+ Re5-e2 Rc2xe2+ Kf2xe2 Ka8-b7 f7-f8Q a2-a1Q Qf8xb4+ Kb7-a6 Qb4-b8 Qa1-a4 Ke2-d2 Qa4-d4+ Kd2-c2 Qd4-f2+ Kc2-c3 Qf2-c5+ Kc3-d3
20/60 00:06 16,522k 2,465k -3.39 Re1-e5 a4-a3 f5-f6 a3-a2 f6-f7 Rc5-c2+ Re5-e2 Rc2xe2+ Kf2xe2 a2-a1Q f7-f8Q+ Ka8-a7 Qf8xb4 Ka7-a6 Qb4-b8 Qa1-a4 Ke2-d2 Qa4-d4+ Kd2-c2 Qd4-f2+ Kc2-d3 Qf2-f3+ Kd3-c2 d5-d4 Qb8-h8 Qf3-h5
21/78 00:11 29,769k 2,534k -3.62 Re1-e5 a4-a3 f5-f6 a3-a2 f6-f7 Rc5-c2+ Re5-e2 Rc2xe2+ Kf2xe2 a2-a1Q f7-f8Q+ Ka8-a7 Qf8-c5+ Ka7-b7 Qc5xb4+ Kb7-a6 Qb4-b8 Qa1-a4 Ke2-d2 Qa4-d4+ Kd2-c2 Qd4-f2+ Kc2-d3 Qf2-f3+ Kd3-c2 d5-d4 Qb8-h8 Qf3-c3+ Kc2-b1 Qc3-a3
22/76 00:15 40,999k 2,572k -3.64 f5-f6 d5-d4 Kf2-f3 Rc5xg5 Kf3-e4 Rg5-g8 Ke4xd4 Rg8-f8 Re1-f1 Ka8-b7 Kd4-c4 b4-b3 Kc4-b4 b3-b2 Rf1-b1 Rf8xf6 Rb1xb2 Rf6-f4+ Kb4-a5+ Kb7-c8 Rb2-a2 h7-h5 Ra2-a3 Kc8-d7 Ka5-b6 Rf4-c4 Ra3-d3+ Kd7-e6
23/54 00:16 43,422k 2,568k -3.70 f5-f6 d5-d4 Kf2-f3 Rc5xg5 Kf3-e4 Rg5-g8 Ke4xd4 Rg8-f8 Re1-f1 Ka8-b7 Kd4-c4 b4-b3 Kc4-b4 b3-b2 Rf1-b1 Rf8xf6 Rb1xb2 Rf6-f4+ Kb4-a3+ Kb7-a6 Rb2-e2 Rf4-c4
24/52 00:18 47,180k 2,557k -3.87 f5-f6 d5-d4 Kf2-f3 Rc5xg5 Kf3-e4 Rg5-g8 Ke4xd4 Rg8-f8 Re1-f1 Ka8-b7 Kd4-c4 b4-b3 Kc4-b4 b3-b2 Rf1-b1 Rf8xf6 Rb1xb2 Rf6-f4+ Kb4-a5+ Kb7-c8 Rb2-a2 h7-h5 Ka5-b6
25/65 00:21 53,942k 2,568k -3.94 Re1-e5 a4-a3 f5-f6 a3-a2 f6-f7 Rc5-c2+ Re5-e2 Rc2xe2+ Kf2xe2 Ka8-b7 f7-f8Q a2-a1Q Qf8xb4+ Kb7-a6 Qb4-b8 Qa1-a4 Ke2-d2 Qa4-d4+ Kd2-c2 Qd4-f2+ Kc2-c1 Qf2-g2 Qb8-e5 Ka6-b5 Qe5-c3 Qg2-g1+ Kc1-b2 Qg1xh2+ Kb2-b3 c6-c5 Kb3-a3 c5-c4 Qc3-b4+ Kb5-c6 Qb4-a4+ Kc6-d6 Qa4-e8 Qh2-g3+ Ka3-b4 Qg3-d3 Kb4-b5 Qd3-b1+ Kb5-a5 Qb1-a1+ Ka5-b5 Qa1-b2+ Kb5-a6 Qb2-a3+ Ka6-b7 Qa3-b3+ Kb7-a6
26/62 00:23 61,110k 2,570k -3.96 Re1-e5 a4-a3 f5-f6 a3-a2 f6-f7 Rc5-c2+ Re5-e2 Rc2xe2+ Kf2xe2 Ka8-b7 f7-f8Q a2-a1Q Qf8xb4+ Kb7-a6 Qb4-b8 Qa1-a4 Ke2-d2 Qa4-d4+ Kd2-c2 Qd4-f2+ Kc2-c1 Qf2-g2 Qb8-e5 Ka6-b5 Qe5-c3 Qg2-g1+ Kc1-b2 Qg1xh2+ Kb2-b3 c6-c5 Kb3-a3 c5-c4 Qc3-b4+ Kb5-c6 Qb4-a4+ Kc6-d6 Qa4-a6+ Kd6-e5 Qa6-f6+ Ke5-e4 Qf6-e7+ Ke4-d3 Qe7xh7+ Kd3-c3 Qh7-b7 Qh2-g1 Qb7-b2+ Kc3-d3 Qb2-e5 h3-h2 Qe5xd5+ Qg1-d4
27/79 00:27 71,570k 2,575k -4.04 Re1-e5 a4-a3 f5-f6 a3-a2 f6-f7 Rc5-c2+ Re5-e2 Rc2xe2+ Kf2xe2 Ka8-b7 f7-f8Q a2-a1Q Qf8xb4+ Kb7-a6 Qb4-b8 Qa1-a4 Ke2-d2 Qa4-d4+ Kd2-c2 Qd4-f2+ Kc2-c1 Qf2-g2 Qb8-e5 Ka6-b5 Qe5-c3 Qg2-g1+ Kc1-b2 Qg1xh2+ Kb2-b3 c6-c5 Kb3-a3 c5-c4 Qc3-b4+ Kb5-c6 Qb4-a4+ Kc6-d6 Qa4-b4+
28/74- 01:01 158,724k 2,601k -4.46 Re1-e5 a4-a3
28/74 01:04 167,319k 2,602k -4.47 Re1-e5 a4-a3 f5-f6 a3-a2 f6-f7 Rc5-c2+ Re5-e2 Rc2xe2+ Kf2xe2 Ka8-b7 f7-f8Q a2-a1Q Qf8xb4+ Kb7-a6 Qb4-b8 Qa1-a4 Ke2-d2 Qa4-d4+ Kd2-c2 Qd4-f2+ Kc2-c1 Qf2-g2 Kc1-d1 Qg2-f3+ Kd1-d2 d5-d4 Qb8-e5 Qf3-e3+ Qe5xe3 d4xe3+ Kd2-e2
29/73 01:18 204,332k 2,601k -4.51 Re1-e5 a4-a3 f5-f6 a3-a2 f6-f7 Rc5-c2+ Re5-e2 Rc2xe2+ Kf2xe2 Ka8-b7 f7-f8Q a2-a1Q Qf8xb4+ Kb7-a6 Qb4-b8 Qa1-a4 Ke2-d2 Qa4-d4+ Kd2-c2 Qd4-f2+ Kc2-c1 Qf2-g2 Qb8-c7 Ka6-b5 Qc7-b7+ Kb5-c5 Qb7-a7+ Kc5-c4 Qa7-a4+ Kc4-d3 Qa4-b3+ Kd3-d4 Qb3-b4+ Kd4-e3 Qb4-c3+ Ke3-e4 Qc3-b4+ d5-d4 Qb4-e7+ Ke4-d3 Qe7-a3+ Kd3-e2 Qa3-b2+ Ke2-e3 Qb2-a3+ d4-d3 Qa3-c5+ Ke3-e2 Qc5-e5+ Ke2-f1 Qe5-f5+ Kf1-g1 Qf5xd3 Qg2xg5+ Kc1-d1 h7-h5 Kd1-c2 Kg1xh2 Qd3-d6+ Qg5-g3 Qd6-d1 Kh2-g2 Qd1xh5 Qg3-f2+ Kc2-b1 Qf2-g1+ Kb1-b2
30/77 02:12 362,450k 2,740k -4.70 f5-f6 d5-d4 Kf2-f3 Rc5xg5 Kf3-e4 Rg5-g8 Ke4xd4 Rg8-f8 Re1-f1 Ka8-b7 Kd4-c4 b4-b3 Kc4-b4 b3-b2 Rf1-b1 Rf8xf6 Rb1xb2 Rf6-f4+ Kb4-a5+ Kb7-c8 Rb2-a2 Kc8-d7 Ra2-a3 h7-h5 Ra3xh3 h5-h4 Rh3-c3 Kd7-d6 Rc3-h3
31/72 02:16 372,816k 2,740k -4.70 f5-f6 d5-d4 Kf2-f3 Rc5xg5 Kf3-e4 Rg5-g8 Ke4xd4 Rg8-f8 Re1-f1 Ka8-b7 Kd4-c4 b4-b3 Kc4-b4 b3-b2 Rf1-b1 Rf8xf6 Rb1xb2 Rf6-f4+ Kb4-a5+ Kb7-c8 Rb2-a2 Kc8-d7 Ra2-a3 h7-h5 Ra3xh3 h5-h4 Rh3-c3 Kd7-d6 Rc3-d3+ Kd6-c5 Rd3-c3+ Rf4-c4 Rc3-h3 Rc4-d4 Rh3-a3 Kc5-d5 Ra3-h3 Kd5-d6 Rh3-f3 c6-c5 Ka5-a6 Rd4-b4
32/89 03:33 601,132k 2,815k -5.00 Re1-e5 a4-a3 f5-f6 a3-a2 f6-f7 Rc5-c2+ Re5-e2 Rc2xe2+ Kf2xe2 Ka8-b7 f7-f8Q a2-a1Q Qf8xb4+ Kb7-a6 Qb4-b8 Qa1-a4 Ke2-d2 Qa4-d4+ Kd2-c2 Qd4-f2+ Kc2-c1 Qf2-g2 Qb8-c7 Ka6-b5 Qc7-b7+ Kb5-c5 Qb7xh7 Qg2xg5+ Kc1-c2 Qg5-g2+ Kc2-c3 Qg2-f3+ Kc3-b2 Qf3-f2+ Kb2-b1 Qf2-g1+ Kb1-a2 Qg1xh2+ Ka2-b1 Qh2-g1+ Kb1-a2 Qg1-f2+ Ka2-a1 Qf2-e1+ Ka1-a2 Qe1-d2+ Ka2-b3 Qd2-e3+ Kb3-a2 Kc5-d4 Qh7-c2 c6-c5 Ka2-b2 c5-c4 Qc2-h2 Kd4-e4 Qh2-h1+ Ke4-e5 Qh1-h2+ Ke5-d4
33/96 05:08 888,234k 2,883k -5.24 Re1-e5 a4-a3 f5-f6 a3-a2 f6-f7 Rc5-c2+ Re5-e2 Rc2xe2+ Kf2xe2 Ka8-b7 f7-f8Q a2-a1Q Qf8xb4+ Kb7-a6 Qb4-b8 Qa1-a4 Ke2-d2 Qa4-d4+ Kd2-c2 Qd4-f2+ Kc2-c1 Qf2-g2 Qb8-a8+ Ka6-b5 Qa8-b7+ Kb5-c5 Qb7-a7+ Kc5-c4 Qa7-a6+ Kc4-d4 Qa6-a4+ Kd4-e3 Qa4-a3+ Ke3-e2 Qa3-f8
34/102+ 07:00 1,235,484k 2,941k -4.26 g5-g6
34/102+ 07:00 1,236,353k 2,941k -3.49 g5-g6
34/102+ 07:05 1,248,763k 2,938k -1.09 g5-g6
34/102 07:07 1,255,523k 2,935k -0.48 g5-g6 d5-d4 Re1-e5 Rc5xe5 g6-g7 Re5xf5+ Kf2-g1 Rf5-g5+ Kg1-h1 Ka8-b7 g7-g8Q Rg5-c5 Kh1-g1 b4-b3 Qg8-g7+ Kb7-b6 Qg7xd4 Kb6-b5 Kg1-f1 Rc5-c2 Qd4-e4 c6-c5 Kf1-e1 Rc2-g2 Ke1-d1 b3-b2 Qe4-b7+ Kb5-c4 Qb7-a6+ Kc4-b3 Qa6-b5+ Kb3-a3 Qb5xc5+ Ka3-a2 Qc5-c4+ Ka2-a1 Qc4xa4+ Ka1-b1
35/17+ 07:07 1,255,998k 2,935k -1.22 g5-g6
35/21+ 07:08 1,256,790k 2,935k -1.11 g5-g6
35/69+ 07:16 1,279,815k 2,929k -0.16 g5-g6
35/69 07:18 1,283,922k 2,929k -0.17 g5-g6 d5-d4 Re1-e5 Rc5xe5 g6-g7 Re5xf5+ Kf2-g1 Rf5-g5+ Kg1-h1 Rg5-c5 g7-g8Q+ Ka8-a7 Kh1-g1 Ka7-a6 Qg8-b8 Ka6-a5 Qb8-a7+ Ka5-b5 Kg1-f1 d4-d3 Kf1-e1 Rc5-c2 Qa7-b7+ Kb5-c5 Qb7-e7+ Kc5-c4 Qe7-e4+ Kc4-c3 Qe4xc6+ Kc3-b3 Qc6-d6 Kb3-a3 Ke1-d1 Rc2-b2 Qd6xd3+ b4-b3 Qd3xh3 h7-h5 Qh3-d7 Rb2-b1+ Kd1-d2
36/39+ 07:19 1,286,610k 2,929k -0.28 g5-g6
36/39+ 07:20 1,291,403k 2,929k -0.26 g5-g6
36/39+ 07:27 1,311,289k 2,930k -0.04 g5-g6
36/50 07:28 1,313,587k 2,930k 0.00 g5-g6 d5-d4 Re1-e5 Rc5xe5 g6-g7 Re5xf5+ Kf2-g1 Rf5-g5+ Kg1-h1 Rg5-c5 g7-g8Q+ Ka8-b7 Kh1-g1 Kb7-b6 Qg8-d8+ Kb6-b5 Qd8xd4 a4-a3 Qd4-d1 Rc5-g5+ Kg1-f2 a3-a2 Qd1-d3+ Kb5-a5 Qd3-d8+ Ka5-a4 Qd8-d1+ Ka4-b5
Top
peter
Posts: 3358
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: Obsidian can be fast in test positions

Post by peter »

Another one Obsidian prevails at, a study by Popov G.:

[d]8/2p1N3/2p5/2p5/P1kb2R1/4p3/P3p1P1/1B2B2K w - - 0 1
bm 1.Be4
(only one #9, not much longer DTM with some other first moves)

https://www.yacpdb.org/#search/ODJwMU4z ... LzEvMA==/1

Obsidian 15.0 (JA- compile) is the first one engine I tried this position with so far, that solves it single threaded instantly, even Huntsman needs a little more hardware- time, regards
Peter.
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lech
Posts: 1168
Joined: Sun Feb 14, 2010 10:02 pm

Re: Obsidian can be fast in test positions

Post by lech »

peter wrote: ↑Fri Mar 07, 2025 8:56 am Another one Obsidian prevails at, a study by Popov G.:
It is no study, but a problem (#9). :?
Maybe, I can't be friendly, but let me be useful.
Top
cc2150dx
Posts: 374
Joined: Sat Nov 30, 2013 9:51 am
Location: Canada
Full name: Jason Coombs

Re: Obsidian can be fast in test positions

Post by cc2150dx »

peter wrote: ↑Fri Mar 07, 2025 8:56 am Another one Obsidian prevails at, a study by Popov G.:

[d]8/2p1N3/2p5/2p5/P1kb2R1/4p3/P3p1P1/1B2B2K w - - 0 1
bm 1.Be4
(only one #9, not much longer DTM with some other first moves)

https://www.yacpdb.org/#search/ODJwMU4z ... LzEvMA==/1

Obsidian 15.0 (JA- compile) is the first one engine I tried this position with so far, that solves it single threaded instantly, even Huntsman needs a little more hardware- time, regards
FEN: 8/2p1N3/2p5/2p5/P1kb2R1/4p3/P3p1P1/1B2B2K w - - 0 1

Obsidian Dev 15:08:

51 04:45 2,548,262k 8,919k +M10 1.Nxc6 Kd5 2.Be4+ Ke6 3.a5 c4 4.Nxd4+ Kf7 5.a6 Kf6 6.a7 Ke5 7.a8Q Kd6 8.Qd5+ Ke7 9.Bh4+ Kf8 10.Rg8+
52 05:57 3,268,553k 9,149k +M9 1.Be4 Bc3 2.Bh7+ Bd4 3.Re4 Kd3 4.Rh4+ Kc4 5.g4 Bc3 6.g5+ Bd4 7.g6 Kd3 8.g7+ Kc4 9.g8Q+

That took awhile.
Top
peter
Posts: 3358
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: Obsidian can be fast in test positions

Post by peter »

cc2150dx wrote: ↑Fri Mar 07, 2025 7:42 pm That took awhile.
That didn't:

Code: Select all

Engine: Obsidian15.0 (1024 MB)
von Gabriele Lombardo

37.00  0:01   +M9      1.Le4 Le5 2.Lh7+ Ld4 3.Te4 Kd3 
                       4.Th4+ Kc4 5.g4 Lc3 6.g5+ Ld4 7.g6 Kd3 
                       8.g7+ Kc4 9.g8D+ (2.935.786) 1865 TB:157 
...

45.00  0:49   +M9      1.Le4 Le5 2.Lh7+ Ld4 3.Te4 Kd3 
                       4.Th4+ Kc4 5.g4 Lc3 6.g5+ Ld4 7.g6 Kd3 
                       8.g7+ Kc4 9.g8D+ (121.187.862) 2448 
                       TB:3.265 

Bester Zug: Lb1-e4 Zeit: 0:49.562 min  K/s: 2.448.091  Knoten: 121.187.862 TB: 3.265
Single thread of 3.5GHz Ryzen- CPU, JA compile, regards
Peter.
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lech
Posts: 1168
Joined: Sun Feb 14, 2010 10:02 pm

Re: Obsidian can be fast in test positions

Post by lech »

If a search results in checkmate, the best advice is to stop and restart the search immediately. This should work fine for all chess engines if someone wants to get the shortest path to checkmate quickly.
Maybe, I can't be friendly, but let me be useful.
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peter
Posts: 3358
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: Obsidian can be fast in test positions

Post by peter »

lech wrote: ↑Sun Mar 09, 2025 3:57 pm If a search results in checkmate, the best advice is to stop and restart the search immediately. This should work fine for all chess engines if someone wants to get the shortest path to checkmate quickly.
Of course that can help, but it's not the way I copy- paste output to show time to solution with empty hash, if I don't say so explicitely (e.g. that the output comes from restart after Forward- Backward already, which of course helps the engine the most, but doesn't give easily to be compared results neither). And regard: Obsidian's output was single threaded, so with the same compile you should get the very same at- once- result with this one Popov's- mate in x- puzzle (which isn't the same as a study, of course, thanks for correcting)
:)
BTW, here's the same Obsidian 15.0 JA- compile single threaded´(3.5GHz Ryzen, 1G hash, Fritz19-GUI) with the puzzle from Julius Mendheim, you gave in the thread about new Sting (thanks a lot for the new version):

[d]rkr5/p5p1/Pp4Kp/8/3B4/1B6/8/8 w - - 0 1

Code: Select all

Analysis by Obsidian 15.0 JA:

1.Le5+ Tc7 2.Ld5 Kc8 3.Lxc7 Kxc7 4.Lxa8 b5 5.Kxg7 h5 6.Kf6 h4 7.Lg2 Kd6 
  Die Stellung ist ausgeglichen.  
  = (-0.20)  Tiefe: 10   00:00:00
...
1.Le5+ Tc7 2.Ld5 b5 3.Lxa8 b4 4.Lb7 b3 5.Ld5 Kc8 6.Le6+ Td7 7.Lxd7+ Kxd7 8.Lxg7 h5 9.Kxh5 
  Die Stellung ist ausgeglichen.  
  = (0.00)  Tiefe: 62   00:00:01  38132kN, tb=862039
1.Le5+ Tc7 2.Le6 b5 3.Ld7 b4 4.Kf7 h5 5.Ke8 h4 6.Kd8 h3 7.Lxc7# 
  Weiß setzt Matt.  
  +- (#7)  Tiefe: 63   00:00:01  63317kN, tb=987669
...
1.Le5+ Tc7 2.Le6 b5 3.Ld7 b4 4.Kf7 h5 5.Ke8 h4 6.Kd8 h3 7.Lxc7# 
  Weiß setzt Matt.  
  +- (#7)  Tiefe: 123   00:00:03  289MN, tb=1389478
Here's the .pgn to the piece out of HHdb:

[pgn][Event "Aufgaben fur Schachspieler#61"]
[Site "?"]
[Date "1832.??.??"]
[Round "?"]
[White "Mendheim=J"]
[Black "(+0620.14g6b8) U2"]
[Result "1-0"]
[SetUp "1"]
[FEN "rkr5/p5p1/Pp4Kp/8/3B4/1B6/8/8 w - - 0 1"]
[PlyCount "13"]
[GameId "2153794054094535"]
[EventDate "1832.??.??"]

{stipulation: mate in 7. U2: Rusz=A HHdbVI 21-2-2016.} 1. Be5+ Rc7 2. Be6 b5 3. Bd7 b4 4. Kf7 (4. Kxg7 $1 {<cook AR>}) 4... b3 5. Ke8 (5. Ke7 {<or>}) 5... b2 6. Kd8 b1=Q 7. Bxc7# 1-0
[/pgn]
Peter.
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Uri Blass
Posts: 10769
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

Re: Obsidian can be fast in test positions

Post by Uri Blass »

lech wrote: ↑Sun Mar 09, 2025 3:57 pm If a search results in checkmate, the best advice is to stop and restart the search immediately. This should work fine for all chess engines if someone wants to get the shortest path to checkmate quickly.
This should not work fine for alll chess engines and there are engines that clear the hash tables in case you try to do it and start from scratch so will lose the mate score.

Maybe you mean that it practically work for all good new chess engines but
I see no reason that it has to be correct because this behaviour is not user friendly.

It is obvious that everybody who see a mate in analysis mode and continue the analysis is interested in seeing the fastest mate as soon as possible and if restarting the search help for this target it is logical that the programmer tell the engine to restart the search immediately when it finds a mate and the user does not need to do it manually.
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