CCT-16: Arasan-Crafty game

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jdart
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CCT-16: Arasan-Crafty game

Post by jdart » Sun Jan 26, 2014 3:26 am

I have put up some annotations of this game here:

http://arasanchess.org/games.shtml (go to the end of the list). It was quite interesting to watch. It looked like a draw but then moves 100-109 were critical and I think Arasan missed a win there.

Crafty was getting up to 36M nodes/second in the endgame. Arasan was on a dual Opteron and getting maybe 7-12M but still on some positions it was searching well over a trillion nodes.

--Jon

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beachknight
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Re: CCT-16: Arasan-Crafty game

Post by beachknight » Sun Jan 26, 2014 10:52 am

Quite interesting game with around 200 moves.

I'll annotate this deeply on the next issue of Antalya Chess Express.

Best,
hi, merhaba, hallo HT

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Eelco de Groot
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Location: Groningen

Re: CCT-16: Arasan-Crafty game

Post by Eelco de Groot » Tue Jan 28, 2014 2:36 pm

Here's some analysis done last Sunday, Stockfish but only about move 108. I ran Stockfish first in single PV and then switched to two best moves, so the times don't say very much:

[D]6q1/1kr4p/b3p3/p2pNrPR/Pp1P1P2/1Pp1P3/2Q2K2/7R w - -

Engine: Sf20140125_001 MP (Q6700, 4 threads, 512 MB,
Change in eval, different space calculation)
by Tord Romstad, Marco Costalba and Joona Kiiski

38 22:12 +2.49 108.Nf3 Kb8 109.Ke1 Rff7 110.Rh6 Qc8
111.Kd1 Rfe7 112.Ne5 Qb7 113.Ng4 Ka7
114.Kc1 Bc4 115.R6h3 Rg7 116.R3h2 Kb8
117.Ne5 Ba6 118.Ng4 Qa7 (3.881.240.354) 2912

37 22:12 +2.03 108.Ke1 Rxe5 109.dxe5 Qg6 110.Qxg6 hxg6
111.Rh7 Bd3 112.Rxc7+ Kxc7 113.Kd1 Be4
114.Rh7+ Kc6 115.Re7 Bf5 116.Ra7 Kb6
117.Rd7 Bg4+ 118.Kc1 Ka6 119.Rd6+ Kb7
120.Kc2 Bf5+ 121.Kd1 (3.881.240.354) 2912

_____________________________________________________________


38 23:19 +2.49 108.Nf3 Kb8 109.Ke1 Rff7 110.Rh6 Qc8
111.Kd1 Rfe7 112.Ne5 Qb7 113.Ng4 Ka7
114.Kc1 Bc4 115.R6h3 Rg7 116.R3h2 Kb8
117.Ne5 Ba6 118.Ng4 Qa7 (4.081.398.045) 2915

38 23:19 +2.03 108.Ke1 Rxe5 109.dxe5 Qg6 110.Qxg6 hxg6
111.Rh7 Bd3 112.Rxc7+ Kxc7 113.Kd1 Be4
114.Rh7+ Kc6 115.Re7 Bf5 116.Ra7 Kb6
117.Rd7 Bg4+ 118.Kc1 Ka6 119.Rd6+ Kb7
120.Kc2 Bf5+ 121.Kd1 (4.081.398.045) 2915

_____________________________________________________________


39 30:21 +2.49 108.Nf3 Kb8 109.Ke1 Rff7 110.Rh6 Qc8
111.Kd1 Rfe7 112.Ne5 Qb7 113.Ng4 Ka7
114.Kc1 Bc4 115.R6h3 Rg7 116.R3h2 Kb8
117.Ne5 Ba6 118.Ng4 Qa7 (5.317.660.674) 2919

39 30:21 +1.47 108.Ke1 Rxe5 109.dxe5 Qg6 110.Qxg6 hxg6
111.Rh8 Bd3 112.Kd1 Rd7 113.Kc1 Be4
114.R1h6 Bf5 115.R6h7 Rxh7 116.Rxh7+ Kb6
117.Rd7 Kc6 118.Ra7 Kb6 119.Ra8 Be4
120.Re8 Bf5 121.Rb8+ (5.317.660.674) 2919

_____________________________________________________________


40 34:47 +2.49 108.Nf3 Kb8 109.Ke1 Rff7 110.Rh6 Qc8
111.Kd1 Rfe7 112.Ne5 Qb7 113.Ng4 Ka7
114.Kc1 Bc4 115.R6h3 Rg7 116.R3h2 Kb8
117.Ne5 Ba6 118.Ng4 Qa7 (6.120.711.484) 2932

40 34:47 +1.55 108.Ke1 Rxe5 109.dxe5 Qg6 110.Qxg6 hxg6
111.Rh7 Bd3 112.Rxc7+ Kxc7 113.Rh7+ Kb6
114.Kd1 Kc6 115.Ra7 Kb6 116.Re7 Bf5
117.Re8 Kc7 (6.120.711.484) 2932
Debugging is twice as hard as writing the code in the first
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan

jdart
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Location: http://www.arasanchess.org

Re: CCT-16: Arasan-Crafty game

Post by jdart » Wed Jan 29, 2014 12:05 am

Interesting discovery. It does look like 108. Nf3 is best, and good for a sizable advantage.

--Jon

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