Chess Programmer's Tournament 2009

[pijl]

The intermediate results are posted here:

http://www.xs4all.nl/~rpijl/tour2009

Currently, the shared leaders are Shredder, The Baron and Kallisto, all with 2 out of 2. It seems that these will also be the leaders after 3 rounds when Kallisto drew Shredder and Baron drew with Diep.

The field is made even by the latest Pocket Shredder, running on an iPac.

more later.
Richard.

[Matthias Gemuh]

The intermediate results are posted here:
http://www.xs4all.nl/~rpijl/tour2009

Currently, the shared leaders are Shredder, The Baron and Kallisto, all with 2 out of 2. It seems that these will also be the leaders after 3 rounds when Kallisto drew Shredder and Baron drew with Diep.

The field is made even by the latest Pocket Shredder, running on an iPac.

more later.
Richard.

[pijl]

Shredder won its third round game afterall and is now the sole leader.
Richard.

[Jeroen]

Hi Richard,

Can you broadcast some of the games at Playchess? I am interested to follow your tournament!

Best wishes, Jeroen

[pijl]

Hi Richard,

Can you broadcast some of the games at Playchess? I am interested to follow your tournament!

Best wishes, Jeroen

Hi Jeroen,

As you probably have seen, there were no broadcasts. The games are available though. And Apeldoorn is not that far from here ...

Cu in Pamplona,
Richard.

[Rémi Coulom]

Thanks Richard for organizing this tournament. I enjoyed it very much.

Rémi

[Gerd Isenberg]

While last night was quite short without much sleep and the last two rounds today were emotionally rather stressful for me, it was just a great tournament again.

Here Hansdamf missed a draw against Shredder, by playing 22. Be4 (and pondering Qxb2??) rather than 22. Bh5
[d] 2r2k2/2p2ppQ/bn2p2B/4q1N1/1bp5/5B2/1P3PPP/5RK1 w - - 4 22

In the last round Hansdamf looked already lost against Joker, and played 31. ...Rxe7 (rook takes knight). Joker decided to take the queen here, probably pawn takes rook is better. So Hansdamf was lucky to even win that game (likely with the little help of Joker).
[d] 1r6/2pbrp1k/pp1p1Ppp/3Rq3/2P1P3/1P6/P4RPP/4Q1K1 w - - 0 32
What do other programs prefer here?

Thanks Richard for organizing the 2nd Programmers Tournament.

Cheers,
Gerd

[bob]

Crafty only considers fxe7 with a nearly equal score, even after a 5 minute search on good hardware. Never considers anything else.

[Tord Romstad]

Crafty only considers fxe7 with a nearly equal score, even after a 5 minute search on good hardware. Never considers anything else.

Glaurung 090215, running on a first generation iPod Touch (ARM 412 MHz):

Code: Select all

 2     +1.41   00:00      687 Rxe5 Rxe5 Rd2 
 3     +1.43   00:00     1356 Rxe5 Rxe5 Rd2 Rbe8 
 4     +1.18   00:00     2885 Rxe5 Rxe5 Rf4 Rbe8 Qe3 
 4     +1.29   00:00     4696 Qf1 Bc6 fxe7 Bxd5 exd5 f5 
 5     +1.14   00:00     7010 Qf1 Bc6 fxe7 Bxd5 exd5 f5 Re2 
 5     +1.27   00:00     7947 Rxe5 Rxe5 Rf4 Rbe8 Qe3 Kg8 
 6     +0.22   00:01    12937 Rxe5 Rxe5 Rf4 Rbe8 Qe3 g5 Rf1 Rxe4 
 6     +1.18   00:01    19989 Qf1 Ree8 Rxe5 Rxe5 Qd3 Rbe8 Re2 
 7     +1.29   00:01    23813 Qf1 Ree8 Rxe5 Rxe5 Qd3 Rbe8 Re2 Kg8 
 8     +0.20   00:02    30036 Qf1 Ree8 Rxe5 Rxe5 Qd3 Rbe8 Re2 Bf5 a3 Bxe4 
 8     +0.73   00:06    97435 fxe7 Qxe7 Qf1 Be6 Rd3 b5 cxb5 axb5 a3 
 9     +0.78   00:10   151959 fxe7 Qxe7 Qf1 Kg8 Qc1 Qxe4 Qxh6 Qb1+ Rf1 Qxa2 Rd3 
10     +0.55   00:18   271895 fxe7 Qxe7 Qf1 Kg8 Rd4 Re8 Qc1 Qh4 g3 Qh3 Qf4 
11     +0.51   00:37   568063 fxe7 Qxe7 Qf1 Rf8 Qd3 Bc6 Rd4 Re8 Qg3 Kg7 Rf4 f6 
12     +0.37   01:16    1161k fxe7 Qxe7 Qf1 Rf8 Qe2 Bc6 Rd4 Re8 Qb2 Kg8 Rf4 Qe5 
                              Qd2 
Nodes: 1935000
Nodes/second: 15142
Best move: fxe7
Ponder move: Qxe7

Tord

[hgm]

As a human I immediately felt that RxQ would be totally lost, While PxR would leave you with a clear advantage of a more powerful piece (R vs N). And indeed after QxR, RxR it turns out the position is so lost as I hardly have seen a lost position ever. Before you know it, it is Q vs R+B+5P, as white being totally powerless to prevent it. Black simply gobbles up all white Pawns by attacking them more than white can defend them, without ever offering the possibility for being checked by the Queen, and without ever leaving any of its own pieces undefended.

I fact, it remind me very much of playing the game of The Maharadja and the Sepoys...