WCCC June 27th in Leiden

[IanO]

There is something very satisfying about having a game of exactly 256 moves at a computer competition!

Ending with a forced stalemate was also very nice.

[bob]

There is something very satisfying about having a game of exactly 256 moves at a computer competition!

Ending with a forced stalemate was also very nice.

Actually, going exactly 255 moves would be more aesthetically pleasing to me, an 8 bit number.

[AdminX]

Some nice photo from the event.

https://chessprogramming.wikispaces.com/WCCC+2016

[AdminX]

[d]r1bq2k1/bp3r2/p1pp1n1p/P3p1p1/4P3/2PP1NB1/P2N1PPP/R2Q1RK1 b - - 0 14
Komodo - Jonny Black played 14. ... Bg4 (Novelty)

[pgn]
[Event "ICGA World Computer Chess Championship"]
[Site "Leiden"]
[Date "2016.06.29"]
[Round "5.1"]
[White "Komodo"]
[Black "Jonny"]
[Result "1-0"]
[ECO "C54"]
[LiveChessVersion "1.4.8"]

1.e4 { [%clk 1:45:27] } 1...e5 { [%clk 1:45:20] } 2.Nf3 { [%clk 1:45:38] } 2...Nc6 { [%clk 1:45:32] } 3.Bc4 { [%clk 1:45:45] } 3...Bc5 { [%clk 1:45:45] } 4.c3 { [%clk 1:45:57] } 4...Nf6 { [%clk 1:45:58] } 5.d3 { [%clk 1:46:09] } 5...d6 { [%clk 1:46:12] } 6.Bg5 { [%clk 1:46:21] } 6...h6 { [%clk 1:36:35] } 7.Bh4 { [%clk 1:46:32] } 7...g5 { [%clk 1:36:47] } 8.Bg3 { [%clk 1:45:06] } 8...a6 { [%clk 1:36:59] } 9.O-O { [%clk 1:43:08] } 9...Ba7 { [%clk 1:32:21] } 10.Nbd2 { [%clk 1:38:53] } 10...Na5 { [%clk 1:27:44] } 11.Bd5 { [%clk 1:36:40] } 11...O-O { [%clk 1:23:57] } 12.b4 { [%clk 1:29:49] } 12...c6 { [%clk 1:21:31] } 13.Bxf7+ { [%clk 1:28:47] } 13...Rxf7 { [%clk 1:21:43] } 14.bxa5 { [%clk 1:27:46] } 14...Bg4 { [%clk 1:21:55] } 15.h3 { [%clk 1:18:34] } 15...Bh5 { [%clk 1:22:07] } 16.Qc2 { [%clk 1:16:54] } 16...Qxa5 { [%clk 1:22:19] } 17.d4 { [%clk 1:14:55] } 17...Bxf3 { [%clk 1:22:30] } 18.Nxf3 { [%clk 1:14:17] } 18...Re8 { [%clk 1:22:20] } 19.Rad1 { [%clk 1:12:13] } 19...Kg7 { [%clk 1:19:08] } 20.Rfe1 { [%clk 1:12:23] } 20...Nh5 { [%clk 1:00:13] } 21.Bh2 { [%clk 1:10:50] } 21...Qc7 { [%clk 1:00:23] } 22.dxe5 { [%clk 1:08:48] } 22...dxe5 { [%clk 1:00:36] } 23.Nd4 { [%clk 1:05:46] } 23...Bxd4 { [%clk 1:00:47] } 24.cxd4 { [%clk 1:05:08] } 24...Nf4 { [%clk 1:00:56] } 25.dxe5 { [%clk 1:04:14] } 25...Qxe5 { [%clk 1:00:24] } 26.Rd2 { [%clk 1:03:34] } 26...Re6 { [%clk 0:52:50] } 27.f3 { [%clk 1:03:46] } 27...Rd6 { [%clk 0:53:03] } 28.Rxd6 { [%clk 1:02:56] } 28...Qxd6 { [%clk 0:53:05] } 29.Rd1 { [%clk 1:02:32] } 29...Qe5 { [%clk 0:48:53] } 30.Kh1 { [%clk 1:01:34] } 30...h5 { [%clk 0:49:04] } 31.Bg3 { [%clk 0:59:48] } 31...h4 { [%clk 0:49:13] } 32.Bh2 { [%clk 0:55:46] } 32...Kh6 { [%clk 0:46:11] } 33.Qb3 { [%clk 0:53:42] } 33...Rg7 { [%clk 0:42:14] } 34.Qb4 { [%clk 0:50:23] } 34...Rf7 { [%clk 0:40:37] } 35.a4 { [%clk 0:50:33] } 35...Kh7 { [%clk 0:39:37] } 36.a5 { [%clk 0:50:37] } 36...Qf6 { [%clk 0:36:49] } 37.Qb1 { [%clk 0:49:45] } 37...Kh6 { [%clk 0:35:05] } 38.Qa2 { [%clk 0:48:55] } 38...Re7 { [%clk 0:28:55] } 39.Qa3 { [%clk 0:45:35] } 39...Ne6 { [%clk 0:29:09] } 40.Rd6 { [%clk 0:42:32] } 40...Kg7 { [%clk 0:29:18] } 41.Bg1 { [%clk 0:40:41] } 41...Kf7 { [%clk 0:29:31] } 42.Bd4 { [%clk 0:38:25] } 42...Qf4 { [%clk 0:20:26] } 43.Be3 { [%clk 0:38:37] } 43...Qe5 { [%clk 0:18:06] } 44.Rd1 { [%clk 0:38:00] } 44...Ke8 { [%clk 0:18:19] } 45.Qb3 { [%clk 0:36:48] } 45...Kf8 { [%clk 0:18:32] } 46.Bc1 { [%clk 0:35:24] } 46...Qxa5 { [%clk 0:12:29] } 47.Qb2 { [%clk 0:35:34] } 47...Kf7 { [%clk 0:12:42] } 48.Qh8 { [%clk 0:34:51] } 48...Nf8 { [%clk 0:12:56] } 49.Bb2 { [%clk 0:34:16] } 49...Rd7 { [%clk 0:10:54] } 50.Rf1 { [%clk 0:34:26] } 50...Qb5 { [%clk 0:11:08] } 51.Ra1 { [%clk 0:32:57] } 51...Ke8 { [%clk 0:11:17] } 52.Ba3 { [%clk 0:32:27] } 52...c5 { [%clk 0:11:29] } 53.Qe5+ { [%clk 0:31:27] } 53...Re7 { [%clk 0:11:43] } 54.Qxg5 { [%clk 0:30:53] } 54...b6 { [%clk 0:11:56] } 55.Bc1 { [%clk 0:30:00] } 55...Qc4 { [%clk 0:12:09] } 56.Be3 { [%clk 0:29:16] } 56...Qd3 { [%clk 0:07:28] } 57.Qh5+ { [%clk 0:28:31] } 57...Kd7 { [%clk 0:07:40] } 58.Bg5 { [%clk 0:28:11] } 58...Rh7 { [%clk 0:07:53] } 59.Qg4+ { [%clk 0:27:40] } 59...Ne6 { [%clk 0:08:06] } 60.Qf5 { [%clk 0:27:06] } 60...Rg7 { [%clk 0:08:20] } 61.Bf6 { [%clk 0:26:16] } 61...Rf7 { [%clk 0:07:42] } 62.Rxa6 { [%clk 0:26:26] } 62...Qc4 { [%clk 0:06:58] } 63.Ra7+ { [%clk 0:26:36] } 63...Ke8 { [%clk 0:06:31] } 64.Rxf7 { [%clk 0:23:58] } 64...Kxf7 { [%clk 0:06:41] } 65.Be5+ { [%clk 0:23:39] } 1-0
[/pgn]

[pgn]
[Event "ICGA World Computer Chess Championship"]
[Site "Leiden"]
[Date "2016.06.29"]
[Round "5.2"]
[White "GridGinkgo"]
[Black "Raptor"]
[Result "1-0"]
[ECO "A34"]
[LiveChessVersion "1.4.8"]
[Mark "1"]

1.c4 { [%clk 1:45:26] } 1...Nf6 { [%clk 1:45:27] } 2.Nc3 { [%clk 1:45:38] } 2...d5 { [%clk 1:45:38] } 3.cxd5 { [%clk 1:45:48] } 3...Nxd5 { [%clk 1:45:46] } 4.Nf3 { [%clk 1:46:00] } 4...c5 { [%clk 1:45:57] } 5.d4 { [%clk 1:46:11] } 5...Nxc3 { [%clk 1:46:02] } 6.bxc3 { [%clk 1:46:21] } 6...g6 { [%clk 1:46:16] } 7.e3 { [%clk 1:46:32] } 7...Bg7 { [%clk 1:46:28] } 8.Bd3 { [%clk 1:46:42] } 8...O-O { [%clk 1:43:07] } 9.O-O { [%clk 1:38:08] } 9...Qc7 { [%clk 1:43:17] } 10.Qe2 { [%clk 1:38:17] } 10...Rd8 { [%clk 1:42:46] } 11.Ba3 { [%clk 1:30:17] } 11...b6 { [%clk 1:36:08] } 12.Rab1 { [%clk 1:28:19] } 12...Bb7 { [%clk 1:35:08] } 13.dxc5 { [%clk 1:23:13] } 13...Bf6 { [%clk 1:31:06] } 14.Rfd1 { [%clk 1:23:20] } 14...Nd7 { [%clk 1:28:33] } 15.cxb6 { [%clk 1:23:24] } 15...axb6 { [%clk 1:27:14] } 16.Bb4 { [%clk 1:23:29] } 16...Nc5 { [%clk 1:23:40] } 17.Bc4 { [%clk 1:23:36] } 17...Ne4 { [%clk 1:19:15] } 18.Rxd8+ { [%clk 1:22:33] } 18...Rxd8 { [%clk 1:18:50] } 19.Rc1 { [%clk 1:22:42] } 19...e6 { [%clk 1:16:27] } 20.Rc2 { [%clk 1:20:34] } 20...Kg7 { [%clk 1:08:03] } 21.Qf1 { [%clk 1:20:42] } 21...e5 { [%clk 1:04:46] } 22.Bb5 { [%clk 1:17:36] } 22...Be7 { [%clk 1:00:35] } 23.Qc1 { [%clk 1:16:48] } 23...Bc8 { [%clk 0:55:24] } 24.Bxe7 { [%clk 1:16:04] } 24...Qxe7 { [%clk 0:55:34] } 25.Nd2 { [%clk 1:11:57] } 25...Nc5 { [%clk 0:55:45] } 26.Nb3 { [%clk 1:12:02] } 26...Bd7 { [%clk 0:54:55] } 27.Bxd7 { [%clk 1:07:04] } 27...Nd3 { [%clk 0:52:52] } 28.Qa1 { [%clk 1:06:00] } 28...Qxd7 { [%clk 0:50:43] } 29.c4 { [%clk 1:03:56] } 29...Qg4 { [%clk 0:44:13] } 30.h3 { [%clk 1:01:30] } 30...Qe4 { [%clk 0:44:25] } 31.Nd2 { [%clk 0:58:24] } 31...Qf5 { [%clk 0:44:34] } 32.Nf1 { [%clk 0:57:09] } 32...Qe6 { [%clk 0:42:03] } 33.Qc3 { [%clk 0:55:59] } 33...Nc5 { [%clk 0:42:12] } 34.f3 { [%clk 0:53:08] } 34...Rd3 { [%clk 0:42:23] } 35.Qb2 { [%clk 0:51:57] } 35...Nd7 { [%clk 0:35:49] } 36.Rc3 { [%clk 0:52:03] } 36...Rd6 { [%clk 0:32:43] } 37.e4 { [%clk 0:51:58] } 37...Rd1 { [%clk 0:29:11] } 38.Rc1 { [%clk 0:52:02] } 38...Rd3 { [%clk 0:27:26] } 39.Qb4 { [%clk 0:52:10] } 39...h5 { [%clk 0:22:33] } 40.Rb1 { [%clk 0:51:56] } 40...Qf6 { [%clk 0:15:10] } 41.Rb2 { [%clk 0:52:06] } 41...Qd8 { [%clk 0:13:45] } 42.Rd2 { [%clk 0:52:13] } 42...Nc5 { [%clk 0:13:38] } 43.Rxd3 { [%clk 0:52:20] } 43...Nxd3 { [%clk 0:13:22] } 44.Qc3 { [%clk 0:49:46] } 44...Qd4+ { [%clk 0:13:33] } 45.Qxd4 { [%clk 0:47:09] } 45...exd4 { [%clk 0:13:44] } 46.g3 { [%clk 0:47:12] } 46...Kf6 { [%clk 0:11:58] } 47.f4 { [%clk 0:45:26] } 47...g5 { [%clk 0:12:05] } 48.fxg5+ { [%clk 0:44:07] } 48...Ke5 { [%clk 0:12:14] } 49.Nd2 { [%clk 0:44:10] } 49...Nc5 { [%clk 0:12:13] } 50.Kg2 { [%clk 0:43:07] } 50...d3 { [%clk 0:12:23] } 51.Kf3 { [%clk 0:43:00] } 51...Kd4 { [%clk 0:11:50] } 52.e5 { [%clk 0:42:54] } 52...Kc3 { [%clk 0:11:24] } 53.Ke3 { [%clk 0:42:00] } 53...Ne6 { [%clk 0:10:54] } 54.Ne4+ { [%clk 0:39:59] } 54...Kc2 { [%clk 0:10:26] } 55.h4 { [%clk 0:40:07] } 55...Nc5 { [%clk 0:08:00] } 56.Nd2 { [%clk 0:39:56] } 56...Ne6 { [%clk 0:08:03] } 57.Nf1 { [%clk 0:39:15] } 57...Kc3 { [%clk 0:07:53] } 58.Ke4 { [%clk 0:35:16] } 58...Kc2 { [%clk 0:07:32] } 59.a4 { [%clk 0:34:38] } 59...Nc5+ { [%clk 0:07:37] } 60.Kf3 { [%clk 0:34:46] } 60...Ne6 { [%clk 0:05:28] } 61.g4 { [%clk 0:32:23] } 1-0
[/pgn]

[pgn]
[Event "ICGA World Computer Chess Championship"]
[Site "Leiden"]
[Date "2016.06.29"]
[Round "5.3"]
[White "Shredder"]
[Black "Hiarcs"]
[Result "1-0"]
[ECO "D46"]
[LiveChessVersion "1.4.8"]
[Mark "1"]

1.d4 { [%clk 1:45:27] } 1...c6 { [%clk 1:45:25] } 2.c4 { [%clk 1:45:38] } 2...Nf6 { [%clk 1:45:35] } 3.Nc3 { [%clk 1:45:50] } 3...d5 { [%clk 1:45:44] } 4.Nf3 { [%clk 1:46:02] } 4...e6 { [%clk 1:45:55] } 5.e3 { [%clk 1:46:14] } 5...Nbd7 { [%clk 1:46:06] } 6.Qc2 { [%clk 1:46:25] } 6...Bd6 { [%clk 1:46:16] } 7.Bd3 { [%clk 1:46:37] } 7...O-O { [%clk 1:46:25] } 8.O-O { [%clk 1:46:49] } 8...dxc4 { [%clk 1:46:36] } 9.Bxc4 { [%clk 1:47:02] } 9...b5 { [%clk 1:46:47] } 10.Be2 { [%clk 1:47:14] } 10...Bb7 { [%clk 1:46:56] } 11.Rd1 { [%clk 1:47:27] } 11...Qc7 { [%clk 1:47:07] } 12.e4 { [%clk 1:44:17] } 12...e5 { [%clk 1:47:18] } 13.g3 { [%clk 1:40:36] } 13...Rfe8 { [%clk 1:47:28] } 14.dxe5 { [%clk 1:37:15] } 14...Nxe5 { [%clk 1:47:37] } 15.Bg5 { [%clk 1:33:53] } 15...Nxf3+ { [%clk 1:47:45] } 16.Bxf3 { [%clk 1:31:13] } 16...Qe7 { [%clk 1:47:54] } 17.Ne2 { [%clk 1:29:21] } 17...Be5 { [%clk 1:48:03] } 18.Be3 { [%clk 1:24:12] } 18...c5 { [%clk 1:48:12] } 19.Bxc5 { [%clk 1:22:30] } 19...Qe6 { [%clk 1:48:23] } 20.Be3 { [%clk 1:20:47] } 20...a5 { [%clk 1:40:51] } 21.Nd4 { [%clk 1:18:38] } 21...Bxd4 { [%clk 1:26:35] } 22.Rxd4 { [%clk 1:16:57] } 22...Bxe4 { [%clk 1:23:52] } 23.Bxe4 { [%clk 1:15:51] } 23...Nxe4 { [%clk 1:21:17] } 24.Qb3 { [%clk 1:15:56] } 24...Qxb3 { [%clk 1:17:48] } 25.axb3 { [%clk 1:15:23] } 25...Nf6 { [%clk 1:15:55] } 26.Kg2 { [%clk 1:13:52] } 26...h6 { [%clk 1:13:06] } 27.Kf3 { [%clk 1:13:56] } 27...b4 { [%clk 1:11:05] } 28.h3 { [%clk 1:11:37] } 28...Reb8 { [%clk 1:07:38] } 29.Rad1 { [%clk 1:10:25] } 29...Kh7 { [%clk 1:05:25] } 30.Rc4 { [%clk 1:08:49] } 30...Rb5 { [%clk 1:03:29] } 31.Rc5 { [%clk 1:06:58] } 31...Rb7 { [%clk 0:50:57] } 32.h4 { [%clk 1:02:44] } 32...Nd7 { [%clk 0:49:07] } 33.Rcd5 { [%clk 1:00:18] } 33...Nf6 { [%clk 0:49:17] } 34.Re5 { [%clk 0:57:37] } 34...a4 { [%clk 0:44:54] } 35.bxa4 { [%clk 0:57:48] } 35...Rxa4 36.Rd8 { [%clk 0:57:47] } 36...b3 { [%clk 0:42:17] } 37.Rc5 { [%clk 0:56:22] } 37...Nd7 { [%clk 0:40:58] } 38.Rd5 { [%clk 0:55:44] } 38...Nb8 { [%clk 0:40:35] } 39.R8d6 { [%clk 0:53:40] } 39...Rab4 { [%clk 0:39:42] } 40.h5 { [%clk 0:50:48] } 40...Rc7 { [%clk 0:37:43] } 41.Rc5 { [%clk 0:48:12] } 41...Rd7 { [%clk 0:36:09] } 42.Rxd7 { [%clk 0:46:19] } 42...Nxd7 { [%clk 0:35:40] } 43.Ra5 { [%clk 0:44:31] } 43...Nf6 { [%clk 0:35:49] } 44.Bd2 { [%clk 0:43:16] } 44...Rc4 { [%clk 0:34:50] } 45.Rb5 { [%clk 0:38:12] } 45...Ne4 { [%clk 0:33:52] } 46.Bf4 { [%clk 0:38:06] } 46...Nf6 { [%clk 0:31:20] } 47.Be3 { [%clk 0:33:34] } 47...Kg8 { [%clk 0:30:15] } 48.Ba7 { [%clk 0:30:22] } 48...Ne4 { [%clk 0:28:56] } 49.Ke3 { [%clk 0:28:03] } 49...Ra4 { [%clk 0:28:45] } 50.Bb6 { [%clk 0:25:13] } 50...Nd6 { [%clk 0:28:20] } 51.Rxb3 { [%clk 0:24:24] } 51...Re4+ { [%clk 0:28:27] } 52.Kd3 { [%clk 0:23:09] } 52...Re5 { [%clk 0:23:57] } 53.Rb4 { [%clk 0:23:03] } 53...Kh7 { [%clk 0:23:14] } 54.g4 { [%clk 0:21:29] } 54...f5 { [%clk 0:23:06] } 55.f3 { [%clk 0:20:30] } 55...Nf7 { [%clk 0:23:14] } 56.Bd4 { [%clk 0:20:05] } 56...Rd5 { [%clk 0:20:20] } 57.Rb7 { [%clk 0:19:13] } 57...Ne5+ { [%clk 0:18:16] } 58.Kc3 { [%clk 0:18:31] } 58...Kg8 { [%clk 0:16:22] } 59.Bxe5 { [%clk 0:18:42] } 59...Rxe5 { [%clk 0:13:31] } 60.Kd4 { [%clk 0:18:53] } 60...Re1 { [%clk 0:12:54] } 61.b4 { [%clk 0:18:59] } 61...Rd1+ { [%clk 0:08:54] } 62.Ke5 { [%clk 0:18:27] } 1-0
[/pgn]

[Henk]

46. .. Qa5?? Blunder from Jonny. Capturing a pawn but allowing opponent queen to break in. Probably an evaluation bug.

[APassionForCriminalJustic]

Why is every little thing a bug? Komodo is far superior. There shouldn't be any surprise. Jesus Christ. It's not how you lose but why YOU lost in this case.

[Werewolf]

46. .. Qa5?? Blunder from Jonny. Capturing a pawn but allowing opponent queen to break in. Probably an evaluation bug.

Yes, probably. Hard to believe it's a search bug given its setup.

I think Jonny is still with a good chance of winning the event though.

[IanO]

Why is every little thing a bug? Komodo is far superior. There shouldn't be any surprise. Jesus Christ. It's not how you lose but why YOU lost in this case.

Not on that hardware (48 cores vs 2400 cores!). This was a return grudge match after Komodo's endgame loss from last year. Must have been very satisfying for the Komodo team!

Also I'm wondering if Kf8 was the earlier mistake. Masterful play by Komodo in any case. Now we watch to see if Ginkgo can hold a draw against Komodo to even up the score between the top three.

[diep]

En passant bug in Komodo?

1.d4 d5 2.e4 fxe4 3.Nc3 Nf6 4.Bg5 Nc6 5.d5 Ne5 6.Qd4 Nf7 7.h4 e5?!

To me looks like dubious move. You just take on e6 en passant and whites (presumably bad position according to theory from 1990s) looks suddenly ok for white.

After 7..c6 - black is obviously much better.

I was hoping you were right so we could gain some elo points by a simple bugfix. But no, there is no bug. Komodo evaluates the endgame after the queen trade as equal, whereas it shows a tiny White plus after 7...c6. You say "black is obviously much better" but my database stats favor White as does Komodo, and it's not at all obvious to me which side is better.

Database with games of my teammember who managed to blow this a lot with black by blundering

Allowing the En Passant for sure is a very bad move. c6 really only move.

For sure some sort of hashing bug that only shows itself if you have tons of cores that already were searching. They do not know much about massive parallel correct search in computerchess.

[Henk]

Why is every little thing a bug? Komodo is far superior. There shouldn't be any surprise. Jesus Christ. It's not how you lose but why YOU lost in this case.

Not on that hardware (48 cores vs 2400 cores!). This was a return grudge match after Komodo's endgame loss from last year. Must have been very satisfying for the Komodo team!

Also I'm wondering if Kf8 was the earlier mistake. Masterful play by Komodo in any case. Now we watch to see if Ginkgo can hold a draw against Komodo to even up the score between the top three.

A draw ? I thought Ginkgo was winning. But maybe a draw. Bishop against knight with pawns on both sides plus one pawn extra ?