48th CSVN Programmer's Tournament is next weekend

[Engin]

Tornado best game in Leiden.

[Event "Programmers Tournament 48"]
[Site "Leiden"]
[Date "2015.06.13"]
[Round "2.3"]
[White "Tornado"]
[Black "The King"]
[Result "1-0"]
[ECO "B10"]
[LiveChessVersion "1.4.6"]

1.e4 { [%clk 1:00:00] } 1...c6 2.Be2 d5 { [%clk 0:59:07] } 3.e5
{ [%clk 0:59:54] } 3...c5 { [%clk 0:57:54] } 4.Nf3 { [%clk 0:59:48] } 4...Nc6
{ [%clk 0:56:57] } 5.O-O { [%clk 0:59:30] } 5...f6 { [%clk 0:55:57] } 6.Bb5
{ [%clk 0:57:42] } 6...g5 { [%clk 0:54:39] } 7.exf6 { [%clk 0:55:56] }
7...exf6 { [%clk 0:54:29] } 8.d4 { [%clk 0:54:11] } 8...g4 { [%clk 0:54:23] }
9.Nh4 { [%clk 0:52:13] } 9...f5 { [%clk 0:52:55] } 10.g3 { [%clk 0:52:03] }
10...Nf6 { [%clk 0:51:08] } 11.Nc3 { [%clk 0:51:56] } 11...Kf7
{ [%clk 0:49:52] } 12.Ne2 { [%clk 0:50:21] } 12...Qb6 { [%clk 0:48:36] }
13.Bd3 { [%clk 0:48:49] } 13...cxd4 { [%clk 0:48:14] } 14.Nxf5
{ [%clk 0:47:16] } 14...Bc5 { [%clk 0:47:48] } 15.a3 { [%clk 0:46:08] }
15...a5 { [%clk 0:46:43] } 16.Nh6+ { [%clk 0:45:39] } 16...Kf8
{ [%clk 0:46:28] } 17.Rb1 { [%clk 0:43:59] } 17...Ne5 { [%clk 0:45:03] }
18.Bf4 { [%clk 0:43:49] } 18...Nf3+ { [%clk 0:44:13] } 19.Kh1
{ [%clk 0:43:08] } 19...Nh5 { [%clk 0:42:47] } 20.Bc1 { [%clk 0:41:25] }
20...Nf6 { [%clk 0:42:05] } 21.Nf4 { [%clk 0:40:55] } 21...Ne5
{ [%clk 0:40:00] } 22.b4 { [%clk 0:40:48] } 22...axb4 { [%clk 0:38:37] }
23.axb4 { [%clk 0:40:41] } 23...Bd6 { [%clk 0:36:16] } 24.Nf5
{ [%clk 0:40:33] } 24...Nxd3 { [%clk 0:35:04] } 25.Qxd3 { [%clk 0:39:15] }
25...Be5 { [%clk 0:34:56] } 26.f3 { [%clk 0:37:59] } 26...Bd7
{ [%clk 0:33:26] } 27.b5 { [%clk 0:35:09] } 27...gxf3 { [%clk 0:33:11] }
28.Rxf3 { [%clk 0:33:58] } 28...Ke8 { [%clk 0:33:02] } 29.Qe2
{ [%clk 0:32:55] } 29...Qc7 { [%clk 0:32:28] } 30.b6 { [%clk 0:32:47] }
30...Qb8 { [%clk 0:31:31] } 31.Nh6 { [%clk 0:32:32] } 31...Rf8
{ [%clk 0:31:00] } 32.Ra3 { [%clk 0:31:47] } 32...Ba4 { [%clk 0:30:40] }
33.Nd3 { [%clk 0:30:50] } 33...Nd7 { [%clk 0:30:04] } 34.Bf4
{ [%clk 0:30:50] } 34...Qd6 { [%clk 0:27:35] } 35.Rba1 { [%clk 0:28:26] }
35...Rxf4 { [%clk 0:26:52] } 36.gxf4 { [%clk 0:28:02] } 36...Qxh6
{ [%clk 0:26:41] } 37.Rxa4 { [%clk 0:26:47] } 37...Rxa4 { [%clk 0:26:36] }
38.Rxa4 { [%clk 0:25:45] } 38...Ke7 { [%clk 0:26:28] } 39.Nxe5
{ [%clk 0:25:40] } 39...Qf6 { [%clk 0:25:49] } 40.Ra8 { [%clk 0:25:28] }
40...Nxe5 { [%clk 0:25:11] } 41.Qxe5+ { [%clk 0:24:04] } 1-0

[hgm]

Some annotations for one of the more interesting Arasan games:

Indeed, 39. Kh6 was a very strange move by Spartacus. For many more moves it kept insisting the score was -0.01, even in an 18-ply search. Untill, one move later, the score suddenly dropped to -2 at 9 ply. This is very fishy, and suggests some kind of bug. After the ICGA meeting I will try to figure out what caused this.

[Graham Banks]

Tornado best game in Leiden.

[pgn][Event "Programmers Tournament 48"]
[Site "Leiden"]
[Date "2015.06.13"]
[Round "2.3"]
[White "Tornado"]
[Black "The King"]
[Result "1-0"]
[ECO "B10"]
[LiveChessVersion "1.4.6"]

1.e4 { [%clk 1:00:00] } 1...c6 2.Be2 d5 { [%clk 0:59:07] } 3.e5
{ [%clk 0:59:54] } 3...c5 { [%clk 0:57:54] } 4.Nf3 { [%clk 0:59:48] } 4...Nc6
{ [%clk 0:56:57] } 5.O-O { [%clk 0:59:30] } 5...f6 { [%clk 0:55:57] } 6.Bb5
{ [%clk 0:57:42] } 6...g5 { [%clk 0:54:39] } 7.exf6 { [%clk 0:55:56] }
7...exf6 { [%clk 0:54:29] } 8.d4 { [%clk 0:54:11] } 8...g4 { [%clk 0:54:23] }
9.Nh4 { [%clk 0:52:13] } 9...f5 { [%clk 0:52:55] } 10.g3 { [%clk 0:52:03] }
10...Nf6 { [%clk 0:51:08] } 11.Nc3 { [%clk 0:51:56] } 11...Kf7
{ [%clk 0:49:52] } 12.Ne2 { [%clk 0:50:21] } 12...Qb6 { [%clk 0:48:36] }
13.Bd3 { [%clk 0:48:49] } 13...cxd4 { [%clk 0:48:14] } 14.Nxf5
{ [%clk 0:47:16] } 14...Bc5 { [%clk 0:47:48] } 15.a3 { [%clk 0:46:08] }
15...a5 { [%clk 0:46:43] } 16.Nh6+ { [%clk 0:45:39] } 16...Kf8
{ [%clk 0:46:28] } 17.Rb1 { [%clk 0:43:59] } 17...Ne5 { [%clk 0:45:03] }
18.Bf4 { [%clk 0:43:49] } 18...Nf3+ { [%clk 0:44:13] } 19.Kh1
{ [%clk 0:43:08] } 19...Nh5 { [%clk 0:42:47] } 20.Bc1 { [%clk 0:41:25] }
20...Nf6 { [%clk 0:42:05] } 21.Nf4 { [%clk 0:40:55] } 21...Ne5
{ [%clk 0:40:00] } 22.b4 { [%clk 0:40:48] } 22...axb4 { [%clk 0:38:37] }
23.axb4 { [%clk 0:40:41] } 23...Bd6 { [%clk 0:36:16] } 24.Nf5
{ [%clk 0:40:33] } 24...Nxd3 { [%clk 0:35:04] } 25.Qxd3 { [%clk 0:39:15] }
25...Be5 { [%clk 0:34:56] } 26.f3 { [%clk 0:37:59] } 26...Bd7
{ [%clk 0:33:26] } 27.b5 { [%clk 0:35:09] } 27...gxf3 { [%clk 0:33:11] }
28.Rxf3 { [%clk 0:33:58] } 28...Ke8 { [%clk 0:33:02] } 29.Qe2
{ [%clk 0:32:55] } 29...Qc7 { [%clk 0:32:28] } 30.b6 { [%clk 0:32:47] }
30...Qb8 { [%clk 0:31:31] } 31.Nh6 { [%clk 0:32:32] } 31...Rf8
{ [%clk 0:31:00] } 32.Ra3 { [%clk 0:31:47] } 32...Ba4 { [%clk 0:30:40] }
33.Nd3 { [%clk 0:30:50] } 33...Nd7 { [%clk 0:30:04] } 34.Bf4
{ [%clk 0:30:50] } 34...Qd6 { [%clk 0:27:35] } 35.Rba1 { [%clk 0:28:26] }
35...Rxf4 { [%clk 0:26:52] } 36.gxf4 { [%clk 0:28:02] } 36...Qxh6
{ [%clk 0:26:41] } 37.Rxa4 { [%clk 0:26:47] } 37...Rxa4 { [%clk 0:26:36] }
38.Rxa4 { [%clk 0:25:45] } 38...Ke7 { [%clk 0:26:28] } 39.Nxe5
{ [%clk 0:25:40] } 39...Qf6 { [%clk 0:25:49] } 40.Ra8 { [%clk 0:25:28] }
40...Nxe5 { [%clk 0:25:11] } 41.Qxe5+ { [%clk 0:24:04] } 1-0[/pgn]

[jdart]

5. .. f6 is really inexplicable: that was a horrible move.

--Jon