To users of Chiron

Discussion of anything and everything relating to chess playing software and machines.

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rvida
Posts: 481
Joined: Thu Apr 16, 2009 12:00 pm
Location: Slovakia, EU

To users of Chiron

Post by rvida »

I am still experimenting with the pawn blockage theme. It is very tricky to get it properly while not slowing down the engine...

Can someone please test these 2 positions with Chiron 1.1a and post the analysis?

3B4/1r2p3/r2p1p2/bkp1P1p1/1p1P1PPp/p1P4P/PP1K4/3B4 w - - 0 1
3B4/1r2p3/r2p1p2/bkp1P1p1/1p1P1PP1/p1P4P/PP1K4/3B4 w - - 0 1

Thanks
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LucenaTheLucid
Posts: 197
Joined: Mon Jul 13, 2009 2:16 am

Re: To users of Chiron

Post by LucenaTheLucid »

First position with 1 thread and 256 MB hash:
Chiron by Ubaldo Andrea Farina, see www.chironchess.com
Engine: Chiron 1.1a 64-bit (256 MB)
by Ubaldo Andrea Farina
21/40 0:01 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bb6 7.Kc2 Bc7 8.Kb1 Bb6 9.Kc2 (973.475) 945
22/37 0:01 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bb6 7.Kc2 Bc7 8.Kb1 Bb6 9.Kc2 (1.800.150) 969
23/39 0:03 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bb6 7.Kc2 Bc7 8.Kb1 Bb6 9.Kc2 (3.009.140) 984
24/43 0:04 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bb6 7.Kc2 Bc7 8.Kb1 Bb6 9.Kc2 (4.511.562) 1000
25/45 0:06 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bb6 7.Kc2 Bc7 8.Kb1 Bb6 9.Kc2 (6.723.590) 1016
26/44 0:10 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bb6 7.Kc2 Bc7 8.Kb1 Bb6 9.Kc2 (10.569.044) 1018
27/49 0:16 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bb6 7.Kc2 Bc7 8.Kb1 Bb6 9.Kc2 (16.518.164) 1010
28/53 0:30 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bb6 7.Kc2 Bc7 8.Kb1 Bb6 9.Kc2 (30.720.418) 1006
29/49 0:47 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bb6 7.Kc2 Bc7 8.Kb1 Bb6 9.Kc2 (47.428.557) 1006
30/51 1:54 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bb6 7.Kc2 Bc7 8.Kb1 Bb6 9.Kc2 (114.890.306) 1004 TB:1
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LucenaTheLucid
Posts: 197
Joined: Mon Jul 13, 2009 2:16 am

Re: To users of Chiron

Post by LucenaTheLucid »

2nd position with 256MB hash and 1 thread:
Engine: Chiron 1.1a 64-bit (256 MB)
by Ubaldo Andrea Farina
20/35 0:01 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bc7 7.Kc2 Bb6 8.Kd3 Bc7 9.Kc2 (1.215.513) 950
21/34 0:01 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bc7 7.Kc2 Bb6 8.Kd3 Bc7 9.Kc2 (1.827.379) 967
22/37 0:02 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bc7 7.Kc2 Bb6 8.Kd3 Bc7 9.Kc2 (2.862.364) 991
23/39 0:04 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bc7 7.Kc2 Bb6 8.Kd3 Bc7 9.Kc2 (4.752.864) 995
24/37 0:06 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bc7 7.Kc2 Bb6 8.Kd3 Bc7 9.Kc2 (6.682.896) 1007
25/39 0:12 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bc7 7.Kc2 Bb6 8.Kd3 Bc7 9.Kc2 (12.605.453) 1007
26/38 0:19 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bc7 7.Kc2 Bb6 8.Kd3 Bc7 9.Kc2 (19.203.737) 1009
best move: Bd1-a4 time: 0:21.591 min n/s: 1.009.814 nodes: 21.502.990
20/35 0:01 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bc7 7.Kc2 Bb6 8.Kd3 Bc7 9.Kc2 (1.215.513) 1038
21/34 0:01 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bc7 7.Kc2 Bb6 8.Kd3 Bc7 9.Kc2 (1.827.379) 1064
22/37 0:02 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bc7 7.Kc2 Bb6 8.Kd3 Bc7 9.Kc2 (2.862.364) 1073
23/39 0:04 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bc7 7.Kc2 Bb6 8.Kd3 Bc7 9.Kc2 (4.752.864) 1065
24/37 0:06 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bc7 7.Kc2 Bb6 8.Kd3 Bc7 9.Kc2 (6.682.896) 1068
25/39 0:11 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bc7 7.Kc2 Bb6 8.Kd3 Bc7 9.Kc2 (12.605.453) 1059
26/38 0:18 0.00 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Bc7 7.Kc2 Bb6 8.Kd3 Bc7 9.Kc2 (19.203.737) 1053
27/35 0:27 -0.17 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Rb8 7.Ke3 Raa8 8.Ke2 Kc7 9.Kf2 Rh8 10.Kg2 Rxh3 11.Kxh3 Rh8+ 12.Kg2 Rh4 13.Kf3 Kb6 (28.174.865) 1040
27/52 0:54 -0.17-- 1.Ba4+ (54.928.933) 1016 TB:1
27/52 0:55 -0.34 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Rb8 7.Ke3 Raa8 8.Ke2 Kc7 9.Kf2 Rh8 10.Kg2 Rxh3 11.Kxh3 Rh8+ 12.Kg2 Rh4 13.Kf3 Kb6 (56.015.683) 1016 TB:1
27/52 1:32 -0.34-- 1.Ba4+ (92.641.687) 1002 TB:2
27/52 1:33 -0.68 1.Ba4+ Kxa4 2.b3+ Kb5 3.c4+ Kc6 4.d5+ Kd7 5.e6+ Kxd8 6.f5 Rb8 7.Ke3 Raa8 8.Ke2 Kc7 9.Kf2 Rh8 10.Kg3 Rxh3+ 11.Kxh3 Rh8+ 12.Kg2 Rh4 13.Kf3 Rxg4 14.Kxg4 (93.738.679) 1001 TB:2
27/52 2:16 -0.68-- 1.Ba4+ (136.011.556) 995 TB:5
Hope this helps.
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Karol Majewski
Posts: 106
Joined: Sat Jul 09, 2011 4:18 pm

Re: To users of Chiron

Post by Karol Majewski »

Here's another simple fortress position:

[d]8/8/3kp1pp/p2p1p2/Pp1P1P1P/1K4P1/8/8 w - - 0 52

Of course it's a draw. Easy for computers? Don't think so. Even Chiron doesn't see the draw.
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MM
Posts: 766
Joined: Sun Oct 16, 2011 11:25 am

Re: To users of Chiron

Post by MM »

Karol Majewski wrote:Here's another simple fortress position:

[d]8/8/3kp1pp/p2p1p2/Pp1P1P1P/1K4P1/8/8 w - - 0 52

Of course it's a draw. Easy for computers? Don't think so. Even Chiron doesn't see the draw.
I confirm, Chiron 1.1a doesn't see any draw.


[d]8/8/3kp1pp/p2p1p2/Pp1P1P1P/1K4P1/8/8 w - - 0 52





Analysis by Chiron 1.1a 64bit:

1.Rb2 Rc7 2.Rb3 Rc6 3.Rc2 Rd7 4.Rb2
-+ (-2.64) Profondità: 6/9 00:00:00 1kN
1.Rb2 Rc7 2.Rb3 Rc6 3.Rc2 Rd7 4.Rb2
-+ (-2.64) Profondità: 7/9 00:00:00 2kN
1.Rb2 Rc7 2.Rb3 Rc6 3.Rc2 h5 4.Rb3 Rd7 5.Rb2
-+ (-2.60) Profondità: 8/12 00:00:00 3kN
1.Rb2 Rc7 2.Rb3 Rc6 3.Rc2 h5 4.Rb3 Rd7 5.Rb2
-+ (-2.60) Profondità: 9/10 00:00:00 4kN
1.Rb2 Rc7 2.Rb3 Rc6 3.Rc2 h5 4.Rb2 Rd6 5.Rc2 Rd7 6.Rb2 Rd8 7.Rb3 Rd7 8.Rb2
-+ (-2.60) Profondità: 10/12 00:00:00 7kN
1.Rb2 Rc7 2.Rb3 Rd8 3.Rb2 Re7 4.Rc2 Rf6 5.Rb3 g5 6.Rc2 gxh4 7.gxh4 h5 8.Rb3
-+ (-2.55) Profondità: 11/18 00:00:00 17kN
1.Rb2 Rc7 2.Rb3 Rd8 3.Rb2 Re7 4.Rc2 Rf6 5.Rb3 g5 6.Rc2 gxh4 7.gxh4 h5 8.Rb3
-+ (-2.72) Profondità: 12/15 00:00:00 22kN
1.Rb2
-+ (-2.72 --) Profondità: 12/15 00:00:00 24kN
1.Rb2 Rc7 2.Rb3 Rd8 3.Rb2 Re7 4.Rc2 Rf6 5.Rb3 g5 6.hxg5+ hxg5 7.Rb2 gxf4 8.gxf4 Re7 9.Rb3
-+ (-2.76) Profondità: 12/16 00:00:00 28kN
1.Rc2 Re7 2.Rb2 Rf6 3.Rb3 Rf7 4.Rc2 Rg7 5.Rb3 Rf7
-+ (-2.64) Profondità: 12/16 00:00:00 39kN
1.Rc2 Re7 2.Rb2 Rf6 3.Rb3 Rf7 4.Rc2 Re8 5.Rd3 Rf8 6.Rc2 Rf7 7.Rd2 Re8 8.Rc2 Rf7
-+ (-2.68) Profondità: 13/16 00:00:00 56kN
1.Rc2 Re7 2.Rb2 Rf6 3.Rb3 Rf7 4.Rc2 Re8 5.Rd3 Re7 6.Rd2 Rf8 7.Rc2 Rf7 8.Rb2 Rf6
-+ (-2.64) Profondità: 14/18 00:00:00 77kN
1.Rc2 Re7 2.Rb2 Rf6 3.Rb1 Rf7 4.Rb2 Re8 5.Rc2 Rf7 6.Rb2
-+ (-2.64) Profondità: 15/22 00:00:00 132kN
1.Rc2 Re7 2.Rb2 Rf6 3.Rb1 Rf7 4.Rc1 Rf8 5.Rd2 Rg7 6.Rc2 Rf8 7.Rb2 Re8 8.Rc2 Rf8
-+ (-2.64) Profondità: 16/24 00:00:00 215kN
1.Rc2 Re7 2.Rb2 Rf6 3.Rb1 Rf7 4.Rc1 Rf8 5.Rd2 Rg7 6.Rc2 Rf7 7.Rb1 Rf8 8.Rb2 Rg8 9.Rc1 Rh8 10.Rb2 Rg7 11.Rb3 Rf7 12.Rb2 Rg8
-+ (-2.64) Profondità: 17/22 00:00:00 270kN
1.Rc2 Re7 2.Rb2 Rf6 3.Rb1 Rf7 4.Rc1 Re8 5.Rb2 g5 6.h5 gxf4 7.gxf4 Rd7 8.Rc1 Rd6 9.Rb1 Rd7 10.Rb2 Rc6 11.Rc2 Rd6 12.Rb1
-+ (-2.61) Profondità: 18/25 00:00:00 414kN
1.Rc2 Re7 2.Rb2 Rf6 3.Rb1 Rf7 4.Rc1 Re8 5.Rb2 g5 6.h5 gxf4 7.gxf4 Rd7 8.Rc2 Rd8 9.Rb3 Re8 10.Rb2
-+ (-2.74) Profondità: 19/29 00:00:00 832kN
1.Rc2 Re7 2.Rb2 Rf6 3.Rb1 Rf7 4.Rc1 Re8 5.Rb2 g5 6.h5 gxf4 7.gxf4 Rd7 8.Rb3 Rc7 9.Ra2 Rd7 10.Rb3
-+ (-2.74) Profondità: 20/29 00:00:00 1257kN
1.Rc2 Re7 2.Rb2 Rf6 3.Rb1 Rf7 4.Rc1 Re8 5.Rb2 g5 6.h5 gxf4 7.gxf4 Rd7 8.Ra2 Rd8 9.Rb2 Re7 10.Rb3 Rd7 11.Rc2 Rc6 12.Rb2 Rb7 13.Ra2 Rc8 14.Rb2 Rb7
-+ (-2.77) Profondità: 21/30 00:00:00 1698kN
1.Rb2 Re7 2.Rc1 g5 3.Rc2 gxh4 4.gxh4 Rf7 5.h5 Re7 6.Rb3 Rd7 7.Rc2 Re7
-+ (-2.74) Profondità: 21/31 00:00:00 2132kN
1.Rb2 Re7 2.Rc1 g5 3.Rc2 gxh4 4.gxh4 Rf7 5.h5 Re7 6.Rb2 Rd6 7.Rb3 Rd7 8.Rc2 Rc6 9.Rb2 Rc7 10.Rb3 Rb6 11.Rb2 Rb7 12.Rb3 Rc7 13.Ra2 Rd7 14.Rb3 Rc6 15.Rb2
-+ (-2.74) Profondità: 22/35 00:00:00 2516kN
1.Rb2 Re7 2.Rc1 g5 3.h5 gxf4 4.gxf4 Rd7 5.Rd2 Rc7 6.Rc2 Rc6 7.Rb2 Rd6 8.Rb3 Rd7 9.Rb2 Re8 10.Rb3 Rd8 11.Rb2 Rc8 12.Rb3 Rb7 13.Rc2 Rc7 14.Rb2 Rd6
-+ (-2.62) Profondità: 23/33 00:00:01 3977kN
1.Rb2 Re7 2.Rc1 g5 3.h5 gxf4 4.gxf4 Rd7 5.Rd2 Rc7 6.Rc2 Rc6 7.Rb2 e5 8.dxe5 Rc7 9.Rb3 Rd8 10.Rb2 Re8 11.Rb3 Rd8
-+ (-2.62) Profondità: 24/37 00:00:01 5358kN
1.Rb2 Re7 2.Rc1 g5 3.h5 gxf4 4.gxf4 Rd7 5.Rd2 Rc7 6.Rc2 Rc6 7.Rb2 Rb7 8.Rc2 Rc8 9.Rb1 Rd8 10.Rc2 Rc7 11.Rb2 Rb8 12.Rc1 Rb7 13.Rb2 Rc8 14.Rc2 Rb8 15.Rb2 Rb7
-+ (-2.62) Profondità: 25/37 00:00:01 6972kN
1.Rb2 Re7 2.Rc1 g5 3.h5 gxf4 4.gxf4 Rd7 5.Rd2 Rc7 6.Rc2 Rc6 7.Rb2 Rb7 8.Rb3 Rc6 9.Rb2
-+ (-2.61) Profondità: 26/39 00:00:02 10816kN
1.Rb2 Re7 2.Rc1 Rf8 3.Rb2 Rg7 4.Rb3 g5 5.h5 gxf4 6.gxf4 Rf7 7.Rc2 e5 8.dxe5 Re6 9.Rb2 d4 10.Rc2 Rd5 11.Rd2 b3 12.Rd3 Rc5 13.Rd2
-+ (-2.46) Profondità: 27/41 00:00:04 18668kN
1.Rb2
-+ (-2.29 ++) Profondità: 28/46 00:00:07 30832kN
1.Rb2 Re7 2.Rc2 Re8 3.Rd3 g5 4.h5 gxf4 5.gxf4 Rd8 6.Rc2 Rd7 7.Rb1 Rc6 8.Rc1 Rd6 9.Rd2 Rc7 10.Rc1 Rb6 11.Rc2 Rc6 12.Rb2 Rb7 13.Rb3 Rc8 14.Rc2 Rd7
-+ (-2.36) Profondità: 28/46 00:00:07 31216kN
1.Rb2 Re7 2.Rc2 Re8 3.Rd3 g5 4.h5 gxf4 5.gxf4 Rd8 6.Rc2 Rd7 7.Rd1 e5 8.dxe5 Re6 9.Rc2 Rf7 10.Rb2 d4 11.Rc2 Rf8 12.Rc1 d3 13.Rd2 Re7 14.Rxd3
-+ (-2.36) Profondità: 29/50 00:00:09 41934kN
1.Rb2 Re7 2.Rc2 Re8 3.Rd3 g5 4.h5 gxf4 5.gxf4 Rd8 6.Rc2 Rd7 7.Rb2 Re8 8.Rc2 e5 9.dxe5 d4 10.Rc1 Rf7 11.Rc2 Re6 12.Rc1 Rd5 13.Rc2 Re6
-+ (-2.32) Profondità: 30/54 00:00:18 90945kN
1.Rb2 Re7 2.Rc2 Re8 3.Rd3 g5 4.h5 gxf4 5.gxf4 Rd8 6.Rc2 Re7 7.Rb1 Rd6 8.Ra1 Rc7 9.Rb2 Rd7 10.Rc2 Rd6 11.Rb2 Rc6 12.Rc1 Rb7 13.Rb2 Rb6 14.Rb3 Ra6 15.Rc2 Ra7 16.Rd3 Rb7 17.Rc2 Ra6 18.Rd1 Rb6 19.Rd2 Rc7 20.Rc2 Rb7 21.Rb2
-+ (-2.49) Profondità: 31/49 00:00:19 96243kN
1.Rb2
-+ (-2.49 --) Profondità: 31/49 00:00:21 111mN
1.Rb2 Re7 2.Rc2 Re8 3.Rd3 g5 4.h5 gxf4 5.gxf4 Rd8 6.Rc2 Re7 7.Rb2 Rd6 8.Ra1 Rd7 9.Rb2 Re8 10.Rc2 Re7
-+ (-2.38) Profondità: 31/50 00:00:25 128mN
1.Rb2
-+ (-2.21 ++) Profondità: 32/55 00:00:32 168mN
1.Rb2 Re7 2.Rc2 Re8 3.Rd3 e5 4.dxe5 Rf8 5.Rc2 Rf7 6.Rb2 h5 7.Rb3 Re6 8.Rb2 d4 9.Rc2 Rf7 10.Rc1 Re7 11.Rb2 d3 12.Rb3 Rd7 13.Rb2 Rc7 14.Rb3 Rb6 15.Rb2 Rc7
-+ (-2.05) Profondità: 32/55 00:00:47 245mN
1.Rb2 Re7 2.Rc2 Re8 3.Rd3 e5 4.dxe5 Rf8 5.Rc2 Rf7 6.Rb2 Re7 7.Rc2 h5 8.Rd1 d4 9.Rc2 Rd7 10.Rc1 Rc6 11.Rb2 d3 12.Rb3 Rd5 13.Rb2 Rd4 14.e6 Rd5 15.e7
-+ (-2.05) Profondità: 33/53 00:01:04 347mN
1.Rb2 Re7 2.Rc2 Re8 3.Rd3 e5 4.dxe5 Rf8 5.Rc2 Rf7 6.Rb3 h5 7.Rb2 Rg7 8.Rc2 d4 9.Rc1 Rg8 10.Rc2 Rf7 11.Rb3 d3 12.Rb2 Re6 13.Rb3 Rd5 14.Rb2 Re6
-+ (-2.05) Profondità: 34/58 00:01:42 566mN
MM
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MM
Posts: 766
Joined: Sun Oct 16, 2011 11:25 am

Re: To users of Chiron

Post by MM »

rvida wrote:I am still experimenting with the pawn blockage theme. It is very tricky to get it properly while not slowing down the engine...

Can someone please test these 2 positions with Chiron 1.1a and post the analysis?

3B4/1r2p3/r2p1p2/bkp1P1p1/1p1P1PPp/p1P4P/PP1K4/3B4 w - - 0 1
3B4/1r2p3/r2p1p2/bkp1P1p1/1p1P1PP1/p1P4P/PP1K4/3B4 w - - 0 1

Thanks


[D]3B4/1r2p3/r2p1p2/bkp1P1p1/1p1P1PPp/p1P4P/PP1K4/3B4 w - - 0 1




Analysis by Chiron 1.1a 64bit:

1.c4+ Rxc4 2.Ae2+ Rxd4 3.Axa6 axb2 4.Rc2 Ta7
-+ (-6.55) Profondità: 6/20 00:00:00 6kN
1.c4+ Rxc4 2.Ae2+ Rxd4 3.Axa6 axb2 4.Rc2 Ta7 5.Axa5 Txa6 6.exf6 exf6
-+ (-7.36) Profondità: 7/19 00:00:00 15kN
1.c4+ Rxc4 2.Ae2+ Rxd4 3.Axa6 axb2 4.Rc2 Ta7 5.Axa5 Txa6 6.exf6 exf6
-+ (-7.36) Profondità: 8/15 00:00:00 36kN
1.c4+ Rxc4 2.Ae2+ Rxd4 3.Axa6 axb2 4.Rc2 Ta7 5.Axa5 Txa6 6.exf6 exf6
-+ (-7.36) Profondità: 9/24 00:00:00 61kN
1.c4+
-+ (-7.19 ++) Profondità: 10/26 00:00:00 146kN
1.c4+
-+ (-7.02 ++) Profondità: 10/26 00:00:00 149kN
1.c4+
-+ (-6.68 ++) Profondità: 10/26 00:00:00 153kN
1.c4+ Rxc4 2.b3+ Rxd4 3.exf6 Ta8 4.Axe7 gxf4 5.Af3 d5 6.g5 c4 7.Rc2
-+ (-6.94) Profondità: 10/26 00:00:00 178kN
1.Aa4+
-+ (-5.39 ++) Profondità: 10/26 00:00:00 230kN
1.Aa4+
-+ (-4.05 ++) Profondità: 10/26 00:00:00 230kN
1.Aa4+
-+ (-1.50 ++) Profondità: 10/26 00:00:00 230kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1
= (0.00) Profondità: 10/26 00:00:00 231kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7
= (0.00) Profondità: 11/23 00:00:00 232kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7 9.Rc2
= (0.00) Profondità: 12/30 00:00:00 238kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7 9.Rc2 Ab8
= (0.00) Profondità: 13/24 00:00:00 244kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7 9.Rc2 Ab8 10.Rb1
= (0.00) Profondità: 14/32 00:00:00 254kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7 9.Rc2 Ab8 10.Rb1 Ac7
= (0.00) Profondità: 15/28 00:00:00 274kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7 9.Rc2 Ab8 10.Rb1 Ac7
= (0.00) Profondità: 16/29 00:00:00 302kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7 9.Rc2 Ab8 10.Rb1 Ac7
= (0.00) Profondità: 17/33 00:00:00 351kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7 9.Rc2 Ab8 10.Rb1 Ac7
= (0.00) Profondità: 18/35 00:00:00 424kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7 9.Rc2 Ab8 10.Rb1 Ac7
= (0.00) Profondità: 19/36 00:00:00 517kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7 9.Rc2 Ab8 10.Rb1 Ac7
= (0.00) Profondità: 20/39 00:00:00 726kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7 9.Rc2 Ab8 10.Rb1 Ac7
= (0.00) Profondità: 21/38 00:00:00 943kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7 9.Rc2 Ab8 10.Rb1 Ac7
= (0.00) Profondità: 22/36 00:00:01 13252kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7 9.Rc2 Ab8 10.Rb1 Ac7
= (0.00) Profondità: 23/41 00:00:02 15863kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7 9.Rc2 Ab8 10.Rb1 Ac7
= (0.00) Profondità: 24/45 00:00:02 20677kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7 9.Rc2 Ab8 10.Rb1 Ac7
= (0.00) Profondità: 25/44 00:00:03 26688kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7 9.Rc2 Ab8 10.Rb1 Ac7
= (0.00) Profondità: 26/45 00:00:05 39558kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7 9.Rc2 Ab8 10.Rb1 Ac7
= (0.00) Profondità: 27/47 00:00:08 64447kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7 9.Rc2 Ab8 10.Rb1 Ac7
= (0.00) Profondità: 28/49 00:00:13 109mN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7 9.Rc2 Ab8 10.Rb1 Ac7
= (0.00) Profondità: 29/52 00:00:19 158mN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7 9.Rc2 Ab8 10.Rb1 Ac7
= (0.00) Profondità: 30/53 00:00:34 286mN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7 9.Rc2 Ab8 10.Rb1 Ac7
= (0.00) Profondità: 31/58 00:01:11 623mN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ta8 7.Rc2 Ab6 8.Rb1 Ac7 9.Rc2 Ab8 10.Rb1 Ac7
= (0.00) Profondità: 32/54 00:02:17 1209mN





[D]3B4/1r2p3/r2p1p2/bkp1P1p1/1p1P1PP1/p1P4P/PP1K4/3B4 w - - 0 1




Analysis by Chiron 1.1a 64bit:

1.c4+ Rxc4 2.Ae2+ Rxd4 3.Axa6 axb2 4.Rc2 Ta7
-+ (-5.60) Profondità: 6/20 00:00:00 5kN
1.c4+ Rxc4 2.Ae2+ Rxd4 3.Axa6 axb2 4.Rc2 Ta7 5.Axa5 Txa6 6.exf6 exf6
-+ (-6.33) Profondità: 7/19 00:00:00 13kN
1.c4+ Rxc4 2.Ae2+ Rxd4 3.Axa6 axb2 4.Rc2 Ta7 5.Axa5 Txa6 6.exf6 exf6
-+ (-6.33) Profondità: 8/19 00:00:00 36kN
1.c4+ Rxc4 2.Ae2+ Rxd4 3.Axa6 axb2 4.Rc2 Ta7 5.Axa5 Txa6 6.exf6 exf6
-+ (-6.33) Profondità: 9/23 00:00:00 58kN
1.c4+
-+ (-6.16 ++) Profondità: 10/24 00:00:00 120kN
1.c4+
-+ (-5.99 ++) Profondità: 10/24 00:00:00 123kN
1.c4+
-+ (-5.65 ++) Profondità: 10/24 00:00:00 126kN
1.c4+ Rxc4 2.b3+ Rxd4 3.exf6 Ta8 4.Axe7 gxf4 5.g5 d5 6.Ag4 c4 7.Rc2
-+ (-6.01) Profondità: 10/27 00:00:00 158kN
1.Aa4+
-+ (-4.97 ++) Profondità: 10/27 00:00:00 213kN
1.Aa4+
-+ (-3.11 ++) Profondità: 10/27 00:00:00 213kN
1.Aa4+
=/+ (-0.54 ++) Profondità: 10/27 00:00:00 213kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rc2 Ac7 8.Rb1
= (0.00) Profondità: 10/27 00:00:00 214kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rc2 Ac7 8.Rb1 Ab6
= (0.00) Profondità: 11/22 00:00:00 215kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rc2 Ac7 8.Rb1 Ab6 9.Rc2
= (0.00) Profondità: 12/20 00:00:00 219kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rc2 Ac7 8.Rb1 Ab6 9.Rc2
= (0.00) Profondità: 13/22 00:00:00 227kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rc2 Ac7 8.Rb1 Ab6 9.Rc2
= (0.00) Profondità: 14/32 00:00:00 244kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rc2 Ac7 8.Rb1 Ab6 9.Rc2
= (0.00) Profondità: 15/28 00:00:00 265kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rc2 Ac7 8.Rb1 Ab6 9.Rc2
= (0.00) Profondità: 16/31 00:00:00 330kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rc2 Ac7 8.Rb1 Ab6 9.Rc2
= (0.00) Profondità: 17/33 00:00:00 431kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rc2 Ac7 8.Rb1 Ab6 9.Rc2
= (0.00) Profondità: 18/34 00:00:00 567kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rc2 Ac7 8.Rb1 Ab6 9.Rc2
= (0.00) Profondità: 19/36 00:00:00 850kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rd1 Ac7 8.Rc2 Ab6 9.Rb1 Ac7 10.Rc2
= (0.00) Profondità: 20/37 00:00:00 1249kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rd1 Ac7 8.Rc2 Ab6 9.Rd1
= (0.00) Profondità: 21/39 00:00:00 1863kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rd1 Ac7 8.Rc2 Ab6 9.Rd1
= (0.00) Profondità: 22/43 00:00:00 2742kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rd1 Ac7 8.Rc2 Ab6 9.Rd1
= (0.00) Profondità: 23/42 00:00:00 4193kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rd1 Ac7 8.Rc2 Ab6 9.Rd1
= (0.00) Profondità: 24/52 00:00:01 6793kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rd1 Ac7 8.Rc2 Ab6 9.Rd1
= (0.00) Profondità: 25/43 00:00:01 9432kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rd1 Ac7 8.Rc2 Ab6 9.Rd1
= (0.00) Profondità: 26/47 00:00:02 14965kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rd1 Tb8 8.Re2 Rc7 9.Rf3 Tc8 10.Rg2 Ta7 11.Rf3 Tb8 12.Rf2 Th8 13.Rg3 Td8 14.Rf2 Tc8 15.Rf3
= (-0.17) Profondità: 27/36 00:00:03 23226kN
1.Aa4+
= (-0.17 --) Profondità: 27/47 00:00:09 68710kN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rd1 Tb8 8.Re2 Rc7 9.Rf3 Tc8 10.Rg3 Td8 11.Rf3 Ta7 12.Rg3 Tc8 13.Rg2 Ta5 14.Rg3 Taa8 15.Rf3 Td8 16.Re2 Th8 17.Rf2 Txh3 18.Rf1
=/+ (-0.34) Profondità: 27/47 00:00:09 69400kN
1.Aa4+
=/+ (-0.34 --) Profondità: 27/47 00:00:13 102mN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rd1 Tb8 8.Re2 Rc7 9.Rf3 Ta7 10.Rg2 Tc8 11.Rf3 Ta6 12.Rg3 Ta5 13.Rg2 Th8 14.Rg3 Ta7 15.Rg2 Ta6 16.Rh2 Td8 17.Rg2 Ta5 18.Rf3 Th8 19.Rg2 Tf8 20.Rf3 Td8 21.Rg2 Th8
=/+ (-0.68) Profondità: 27/47 00:00:13 103mN
1.Aa4+
=/+ (-0.68 --) Profondità: 27/48 00:00:19 146mN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rd1 Tb8 8.Re2 Rc7 9.Rf1 Ta7 10.Rg1
-/+ (-1.36) Profondità: 27/53 00:00:35 280mN
1.Aa4+
-/+ (-1.36 --) Profondità: 27/53 00:00:45 360mN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rd1 Tb8 8.Re2 Rc7 9.Rf1 Ta7 10.Rg1 Th8 11.Rh2 Ta6 12.Rg1 Txh3
-+ (-2.72) Profondità: 27/53 00:01:04 522mN
1.Aa4+
-+ (-2.72 --) Profondità: 27/53 00:01:31 750mN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rd1 Tb8 8.Re2 Rc7 9.Rf1 Ta7 10.Rg1 Th8 11.Rh2 Ta6 12.Rg1 Txh3
-+ (-5.44) Profondità: 27/53 00:01:33 767mN
1.Aa4+
-+ (-5.44 --) Profondità: 27/54 00:02:39 1327mN
1.Aa4+ Rxa4 2.b3+ Rb5 3.c4+ Rc6 4.d5+ Rd7 5.e6+ Rxd8 6.f5 Ab6 7.Rd1 Tb8 8.Re2 Rc7 9.Rf1 Ta7 10.Rg1 Th8 11.Rh2 Ta6 12.Rg1 Txh3
-+ (-10.88) Profondità: 27/54 00:02:59 1482mN


Best Regards
MM
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Ajedrecista
Posts: 1969
Joined: Wed Jul 13, 2011 9:04 pm
Location: Madrid, Spain.

Request of solution for this pawns endgame.

Post by Ajedrecista »

Hello Karol:
Karol Majewski wrote:Here's another simple fortress position:

[d]8/8/3kp1pp/p2p1p2/Pp1P1P1P/1K4P1/8/8 w - - 0 52

Of course it's a draw. Easy for computers? Don't think so. Even Chiron doesn't see the draw.
I have tried Houdini 1.5a w32 (2 cores), Komodo 3 w32 (1 core), Critter 1.4 w32 (2 cores), Deep Rybka 4.1 w32 (2 cores) and Zappa Mexico II (2 cores) with this position, and each engine gave evals between -2 and -4 (more less). My computer is a slow Intel Pentium D930 at 3 GHz.

I am also unable of solving this position (by the way, I am pretty mediocre at chess). Would you mind to post the solution, please? Thanks in advance.

Regards from Spain.

Ajedrecista.
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MM
Posts: 766
Joined: Sun Oct 16, 2011 11:25 am

Re: Request of solution for this pawns endgame.

Post by MM »

Ajedrecista wrote:Hello Karol:
Karol Majewski wrote:Here's another simple fortress position:

[d]8/8/3kp1pp/p2p1p2/Pp1P1P1P/1K4P1/8/8 w - - 0 52

Of course it's a draw. Easy for computers? Don't think so. Even Chiron doesn't see the draw.
I have tried Houdini 1.5a w32 (2 cores), Komodo 3 w32 (1 core), Critter 1.4 w32 (2 cores), Deep Rybka 4.1 w32 (2 cores) and Zappa Mexico II (2 cores) with this position, and each engine gave evals between -2 and -4 (more less). My computer is a slow Intel Pentium D930 at 3 GHz.

I am also unable of solving this position (by the way, I am pretty mediocre at chess). Would you mind to post the solution, please? Thanks in advance.

Regards from Spain.

Ajedrecista.
I am around 2000, i think 1.h5! draws ( i didn't use computers, it is my idea).

Regards
MM
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zullil
Posts: 6442
Joined: Tue Jan 09, 2007 12:31 am
Location: PA USA
Full name: Louis Zulli

Re: Request of solution for this pawns endgame.

Post by zullil »

MM wrote:
Ajedrecista wrote:Hello Karol:
Karol Majewski wrote:Here's another simple fortress position:

[d]8/8/3kp1pp/p2p1p2/Pp1P1P1P/1K4P1/8/8 w - - 0 52

Of course it's a draw. Easy for computers? Don't think so. Even Chiron doesn't see the draw.
I have tried Houdini 1.5a w32 (2 cores), Komodo 3 w32 (1 core), Critter 1.4 w32 (2 cores), Deep Rybka 4.1 w32 (2 cores) and Zappa Mexico II (2 cores) with this position, and each engine gave evals between -2 and -4 (more less). My computer is a slow Intel Pentium D930 at 3 GHz.

I am also unable of solving this position (by the way, I am pretty mediocre at chess). Would you mind to post the solution, please? Thanks in advance.

Regards from Spain.

Ajedrecista.
I am around 2000, i think 1.h5! draws ( i didn't use computers, it is my idea).

Regards


After h5??? Black mates in at most 17 moves. At least that's what Critter says, and it outranks you by about 1000 points! :D

[D]8/8/3kp1pp/p2p1p1P/Pp1P1P2/1K4P1/8/8 b - - 0 1

Code: Select all

38/54  02:09 1344571756 10391299   +M17 gxh5 Kc2 Ke7 Kb2 Kf6 Kb3 Kg6 Kb2 h4 gxh4 Kh5 Kc2 Kxh4 Kd3 Kg3 Ke2 h5 Kd3 h4 Ke2 h3 Ke3 h2 Kd3 h1=Q Kc2 Qe1 Kb2 Qd1 Ka2 Qc1 Kb3 Qb1#
Last edited by zullil on Mon Jan 02, 2012 12:42 pm, edited 1 time in total.
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bretti
Posts: 33
Joined: Sat Mar 12, 2011 12:03 pm

Re: Request of solution for this pawns endgame.

Post by bretti »

Yes, white has to stay cool - after 1. h5 black can simple play Ke7-f6 and after gxh5, h4 and finally Kf6-g6-h5.
Only an early gxh5, h5-h4 is bad after g3xh4, h4-h5 and the route for the king would have been closed.
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