Author: Mike Byrne
Date: 14:50:02 03/27/05
Go up one level in this thread
On March 27, 2005 at 13:23:15, Vincent Lejeune wrote:
>On March 27, 2005 at 11:48:06, Mike Byrne wrote:
>
>>On March 27, 2005 at 11:40:03, Vincent Lejeune wrote:
>>
>>>On March 27, 2005 at 11:36:34, Mike Byrne wrote:
>>>
>>>>On March 27, 2005 at 11:18:35, Vincent Lejeune wrote:
>>>>
>>>>>On March 27, 2005 at 10:24:52, Mike Byrne wrote:
>>>>>
>>>>>>On March 27, 2005 at 06:56:35, Vincent Lejeune wrote:
>>>>>>
>>>>>>>On March 26, 2005 at 21:30:04, Robert Hyatt wrote:
>>>>>>>
>>>>>>>>On March 26, 2005 at 19:46:58, Vincent Lejeune wrote:
>>>>>>>>
>>>>>>>>>On March 26, 2005 at 15:34:45, Dieter Buerssner wrote:
>>>>>>>>>
>>>>>>>>>>On March 26, 2005 at 15:29:42, Dieter Buerssner wrote:
>>>>>>>>>>
>>>>>>>>>>>On March 26, 2005 at 15:20:17, Mike Byrne wrote:
>>>>>>>>>>>
>>>>>>>>>>>>after the main line : Kf2 f5 h3 Kc7 g3 hxg3 is winning no?
>>>>>>>>>>>>
>>>>>>>>>>>>Black(2): his
>>>>>>>>>>>> white black
>>>>>>>>>>>> 1 Kf2 f5
>>>>>>>>>>>> 2 h3 Kc7
>>>>>>>>>>>> 3 g3 ...
>>>>>>>>>>>> 17 25.52 -7.17 3. ... hxg3+ 4. Kxg3 f4+ 5. Kg4 b6
>>>>>>>>>>>> 6. h4 f3 7. Kxf3 gxh4 8. c6 Kxc6 9.
>>>>>>>>>>>> Kg4 b5 10. a5 b4 11. Kxh4 Kb5 12. Kg4
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>In this line, Yace says 8. c6? is losing, while 8.cxb6 is draw.
>>>>>>>>>>
>>>>>>>>>>It is such an obvious blunder, that it looks like a bug in Crafty.
>>>>>>>>>>
>>>>>>>>>>Regards,
>>>>>>>>>>Dieter
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>Probably a bug in the static eval of the pawn endgame. after 3 min@3 Ghz :
>>>>>>>>
>>>>>>>>I can't reproduce Mikes PV with this "c6 bug"... I don't get c6 at any point
>>>>>>>>that I can see, it always takes...
>>>>>>>>
>>>>>>>>Any ideas?
>>>>>>>
>>>>>>>
>>>>>>>I succeded to replicate c6 as best move :
>>>>>>>1) without any EGTB
>>>>>>>2) starting with this position 8/1p1k4/5p2/2Pp2p1/P2P3p/8/6PP/6K1 w - - 0 1
>>>>>>>3) under chessbase interface
>>>>>>>4) played 1. Kf2 f5 2. h3 Kc7 3. g3 hxg3+ 4. Kxg3 with 5 between each move
>>>>>>>5) the score is rising for white but it so long I stopped
>>>>>>>Is it a problem related to only pawns endgame eval or linked to hashtables too ?
>>>>>>>
>>>>>>
>>>>>>I suggest not to test under Chessbase GUI unless you are using the native
>>>>>>chessbase crafty engine.
>>>>>
>>>>>I use the native chessbase crafty engine.
>>>>
>>>>after Kxg3 above, you should see a draw score -- Crafty output from a console
>>>>window is below - anything else and something is broken -- in my case it was
>>>>bad kppkp egtb. I would contact Chessbase since they compiled thenative
>>>>chessbase Crafty.
>>>>
>>>>White(4): Kxg3
>>>>analyze.White(4): White(4): Kxg3
>>>> clearing hash tables
>>>> time surplus 0.00 time limit 10:00 (10:00)
>>>> depth time score variation (1)
>>>> 9 0.05 -0.50 4. ... f4+ 5. Kg4 b6 6. h4 f3 7. Kxf3
>>>> gxh4 8. cxb6+ Kxb6 9. Kg4 Ka5 10. Kxh4
>>>> Kxa4 (s=3)
>>>> 9-> 0.08 -0.50 4. ... f4+ 5. Kg4 b6 6. h4 f3 7. Kxf3
>>>> gxh4 8. cxb6+ Kxb6 9. Kg4 Ka5 10. Kxh4
>>>> Kxa4
>>>> 10 0.10 -0.82 4. ... f4+ 5. Kg4 Kd7 6. h4 f3 7. Kxf3
>>>> gxh4 8. Kg4 Ke7 9. a5 Ke6 10. Kxh4
>>>> 10-> 0.11 -0.82 4. ... f4+ 5. Kg4 Kd7 6. h4 f3 7. Kxf3
>>>> gxh4 8. Kg4 Ke7 9. a5 Ke6 10. Kxh4
>>>> 11 0.14 -0.72 4. ... f4+ 5. Kg4 Kd7 6. a5 Kd8 7.
>>>> h4 f3 8. Kxf3 gxh4 9. Kg4 Ke7 10. Kxh4
>>>> 11-> 0.16 -0.72 4. ... f4+ 5. Kg4 Kd7 6. a5 Kd8 7.
>>>> h4 f3 8. Kxf3 gxh4 9. Kg4 Ke7 10. Kxh4
>>>> 12 0.22 -0.50 4. ... f4+ 5. Kg4 Kd7 6. a5 Kd8 7.
>>>> c6 Kc7 8. cxb7 Kxb7 9. h4 f3 10. Kxf3
>>>> gxh4 11. Kg4 Ka6 12. Kxh4 Kxa5
>>>> 12-> 0.25 -0.50 4. ... f4+ 5. Kg4 Kd7 6. a5 Kd8 7.
>>>> c6 Kc7 8. cxb7 Kxb7 9. h4 f3 10. Kxf3
>>>> gxh4 11. Kg4 Ka6 12. Kxh4 Kxa5
>>>> 13 0.33 -0.60 4. ... f4+ 5. Kg4 Kd7 6. a5 Kd8 7.
>>>> Kf3 Kc7 8. Kg2 Kb8 9. Kf2 Ka7 10. c6
>>>> bxc6 11. Kf3
>>>> 13-> 0.43 -0.60 4. ... f4+ 5. Kg4 Kd7 6. a5 Kd8 7.
>>>> Kf3 Kc7 8. Kg2 Kb8 9. Kf2 Ka7 10. c6
>>>> bxc6 11. Kf3
>>>> 14 0.58 +1 4. ... f4+
>>>> 14 0.78 -0.01 4. ... f4+ 5. Kg4 Kc6 6. h4 f3 7. Kxf3
>>>> gxh4 8. Kg4 b6 9. cxb6 Kxb6 10. Kxh4
>>>> <EGTB>
>>>> 14-> 0.89 -0.01 4. ... f4+ 5. Kg4 Kc6 6. h4 f3 7. Kxf3
>>>> gxh4 8. Kg4 b6 9. cxb6 Kxb6 10. Kxh4
>>>> <EGTB>
>>>> 15 1.05 -0.01 4. ... f4+ 5. Kg4 Kc6 6. h4 f3 7. Kxf3
>>>> gxh4 8. Kg4 b6 9. cxb6 Kxb6 10. Kxh4
>>>> <EGTB>
>>>> 15-> 1.18 -0.01 4. ... f4+ 5. Kg4 Kc6 6. h4 f3 7. Kxf3
>>>> gxh4 8. Kg4 b6 9. cxb6 Kxb6 10. Kxh4
>>>> <EGTB> (s=2)
>>>> 16 1.49 -0.01 4. ... f4+ 5. Kg4 Kc6 6. h4 f3 7. Kxf3
>>>> gxh4 8. Kg4 b6 9. cxb6 Kxb6 10. Kxh4
>>>> <EGTB>
>>>> 16-> 1.80 -0.01 4. ... f4+ 5. Kg4 Kc6 6. h4 f3 7. Kxf3
>>>> gxh4 8. Kg4 b6 9. cxb6 Kxb6 10. Kxh4
>>>> <EGTB> (s=2)
>>>> 17 2.60 -0.01 4. ... f4+ 5. Kg4 Kc6 6. h4 f3 7. Kxf3
>>>> gxh4 8. Kg4 b6 9. cxb6 Kxb6 10. Kxh4
>>>> <EGTB>
>>>> 17-> 3.11 -0.01 4. ... f4+ 5. Kg4 Kc6 6. h4 f3 7. Kxf3
>>>> gxh4 8. Kg4 b6 9. cxb6 Kxb6 10. Kxh4
>>>> <EGTB> (s=2)
>>>> 18 4.30 -0.01 4. ... f4+ 5. Kg4 Kc6 6. h4 f3 7. Kxf3
>>>> gxh4 8. Kg4 b6 9. cxb6 Kxb6 10. Kxh4
>>>> <EGTB>
>>>> 18-> 5.47 -0.01 4. ... f4+ 5. Kg4 Kc6 6. h4 f3 7. Kxf3
>>>> gxh4 8. Kg4 b6 9. cxb6 Kxb6 10. Kxh4
>>>> <EGTB> (s=2)
>>>> 19 8.07 -0.01 4. ... f4+ 5. Kg4 Kc6 6. h4 f3 7. Kxf3
>>>> gxh4 8. Kg4 b6 9. cxb6 Kxb6 10. Kxh4
>>>> <EGTB>
>>>> 19-> 11.30 -0.01 4. ... f4+ 5. Kg4 Kc6 6. h4 f3 7. Kxf3
>>>> gxh4 8. Kg4 b6 9. cxb6 Kxb6 10. Kxh4
>>>> <EGTB> (s=2)
>>>> 20 18.07 -0.01 4. ... f4+ 5. Kg4 Kc6 6. h4 f3 7. Kxf3
>>>> gxh4 8. Kg4 b6 9. cxb6 Kxb6 10. Kxh4
>>>> <EGTB>
>>>> 20 24.85 8/9? 4. ... g4
>>>
>>>I succeded to replicate c6 as best move :
>>>1) without any EGTB
>>>2) starting with this position 8/1p1k4/5p2/2Pp2p1/P2P3p/8/6PP/6K1 w - - 0 1
>>>3) under chessbase interface
>>>4) played 1. Kf2 f5 2. h3 Kc7 3. g3 hxg3+ 4. Kxg3 with 5 seconds between each
>>>move (?)
>>
>>somthing is broken - what else can I say ...it's not in Crafty's source
>
>Let it think longer, here's what I get with crafty.exe (without chessbase
>interface) :
> 17-> 10.46 -1.36 4. ... f4+ 5. Kg4 b6 6. cxb6+ Kxb6
> 7. h4 gxh4 8. Kxh4 Ka5 9. Kg4 Kxa4
> 10. Kxf4 Kb3 11. Kf5 Kc3 12. Ke5 Kc4
> 13. Ke6 Kxd4 14. Kd6 Kc4
> 18 13.78 -1 4. ... f4+!!
> 18 21.66 -3 4. ... f4+!!
> 18 28.60 -2.96 4. ... f4+ 5. Kg4 b6 6. cxb6+ Kxb6
> 7. h4 gxh4 8. Kxh4 Ka5 9. Kg4 Kxa4
> 10. Kxf4 Kb3 11. Ke5 Kc4 12. Ke6 Kxd4
> 13. Kd6 Ke4 14. Kc5 d4 15. Kc4
> 18-> 32.50 -2.96 4. ... f4+ 5. Kg4 b6 6. cxb6+ Kxb6
> 7. h4 gxh4 8. Kxh4 Ka5 9. Kg4 Kxa4
> 10. Kxf4 Kb3 11. Ke5 Kc4 12. Ke6 Kxd4
> 13. Kd6 Ke4 14. Kc5 d4 15. Kc4
> 19 37.13 +1 4. ... f4+
> 19 48.92 -1.86 4. ... f4+ 5. Kg4 b6 6. cxb6+ Kxb6
> 7. h4 gxh4 8. Kxh4 Ka5 9. Kg4 Kxa4
> 10. Kxf4 Kb3 11. Kf3 Kc3 12. Ke3 Kc4
> 13. Ke2 Kxd4 14. Kd2 Kc4 15. Kc2 d4
> 19-> 1:01 -1.86 4. ... f4+ 5. Kg4 b6 6. cxb6+ Kxb6
> 7. h4 gxh4 8. Kxh4 Ka5 9. Kg4 Kxa4
> 10. Kxf4 Kb3 11. Kf3 Kc3 12. Ke3 Kc4
> 13. Ke2 Kxd4 14. Kd2 Kc4 15. Kc2 d4
> 20 1:31 -1 4. ... f4+!!
> 20 2:24 -2.94 4. ... f4+ 5. Kg4 b6 6. h4 gxh4 7.
> Kxh4 bxc5 8. Kg4 c4 9. Kxf4 Kb6 10.
> Ke3 Ka5 11. Kd2 Kxa4 12. Kc2 Kb4 13.
> Kb2 c3+ 14. Kc1 Kc4 15. Kc2 Kxd4
> 20 4:36 -1 4. ... b6!!
> 20 5:20 -3 4. ... b6!!
> 20 5:35 -M 4. ... b6!!
> 20 8:57 -6.55 4. ... b6 5. cxb6+ Kxb6 6. h4 f4+ 7.
> Kg4 gxh4 8. Kxh4 f3 9. Kh3 f2 10. Kg2
> Ka5 11. Kxf2 Kxa4 12. Kg1 Kb3 13. Kf2
> Kc3 14. Ke3 Kc4 15. Ke2 Kxd4 16. Kd2
> 20-> 9:06 -6.55 4. ... b6 5. cxb6+ Kxb6 6. h4 f4+ 7.
> Kg4 gxh4 8. Kxh4 f3 9. Kh3 f2 10. Kg2
> Ka5 11. Kxf2 Kxa4 12. Kg1 Kb3 13. Kf2
> Kc3 14. Ke3 Kc4 15. Ke2 Kxd4 16. Kd2
> 21 9:14 +1 4. ... b6
> 21 9:50 -1 4. ... b6!!
> 21 9:50 -6.71 4. ... b6 5. cxb6+ Kxb6 6. h4 f4+ 7.
> Kg4 gxh4 8. Kxh4 f3 9. Kh3 Ka5 10.
> Kg3 Kxa4 11. Kxf3 Ka5 12. Kg4 Kb4 13.
> Kf4 Kc3 14. Ke5 Kc4 15. Kd6 Kxd4 16.
> Kd7 Kc4
> 21 11:15 3/9? 4. ... Kd7
>
>
>after 4:36 (on my amd@3000) crafty want to play b6??
Ithink we're confusing the issue -- it was the move after b6, correct move is
cxb6 leading to draw and c7 loses, if you let the analysis go long enough the
the score after b6 with cxb6 will drop andthe positin is drawn...Crafty sees
this position quciker with dual processors
White(5): g
clearing hash tables
time surplus 0.00 time limit 10:00 (10:00)
depth time score variation (1)
10 0.05 -0.20 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Ke3 Kc3
10-> 0.06 -0.20 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Ke3 Kc3
11 0.09 -0.20 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Kf5 Kc3 12. Ke5
11-> 0.11 -0.20 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Kf5 Kc3 12. Ke5
12 0.14 -0.20 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Kf5 Kc3 12. Ke5 Kc4
12-> 0.19 -0.20 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Kf5 Kc3 12. Ke5 Kc4
13 0.20 -1 5. cxb6+
13 0.25 -1.20 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Kf5 Kc3 12. Ke5 Kc4 13. Ke6 Kxd4
13-> 0.36 -1.20 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Kf5 Kc3 12. Ke5 Kc4 13. Ke6 Kxd4
14 0.42 -1.20 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Kf5 Kc3 12. Ke5 Kc4 13. Ke6 Kxd4
14-> 0.56 -1.20 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Kf5 Kc3 12. Ke5 Kc4 13. Ke6 Kxd4
15 0.58 -1 5. cxb6+
15 0.66 -6.35 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Kf5 Kc3 12. Ke5 Kc4 13. Ke6 Kxd4
14. Kd7
15 1.53 -5.91 5. h4 gxh4+ 6. Kxh4 bxc5 7. dxc5 Kc6
8. Kg3 Kxc5 9. Kf3 Kb4 10. Ke3 Kxa4
11. Kd4 f4 12. Kxd5 f3 13. Ke6 f2
15-> 1.73 -5.91 5. h4 gxh4+ 6. Kxh4 bxc5 7. dxc5 Kc6
8. Kg3 Kxc5 9. Kf3 Kb4 10. Ke3 Kxa4
11. Kd4 f4 12. Kxd5 f3 13. Ke6 f2
16 3.09 -5.53 5. h4 gxh4+ 6. Kxh4 bxc5 7. dxc5 Kc6
8. Kg3 Kxc5 9. Kf4 d4 10. Kf3 Kb6 11.
Kf2 f4 12. Ke2 Kc5 13. a5 Kb5 14. a6
<HT>
16-> 3.28 -5.53 5. h4 gxh4+ 6. Kxh4 bxc5 7. dxc5 Kc6
8. Kg3 Kxc5 9. Kf4 d4 10. Kf3 Kb6 11.
Kf2 f4 12. Ke2 Kc5 13. a5 Kb5 14. a6
<HT>
17 3.56 -1 5. h4
17 4.91 -6.01 5. h4 gxh4+ 6. Kxh4 bxc5 7. dxc5 Kc6
8. Kg3 Kxc5 9. Kf4 d4 10. Kf3 Kb4 11.
Ke2 f4 12. a5 Kxa5 13. Kd3 f3 14. Kxd4
f2
17 5.72 +1 5. cxb6+!!
17 5.95 +3 5. cxb6+!!
17 6.00 -6.35 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 f3 9. Kg3 f2 10. Kxf2 Ka5 11.
Ke3 Kxa4 12. Kf3 Kb4 13. Kf4 Kc3 <HT>
17-> 6.30 -6.35 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 f3 9. Kg3 f2 10. Kxf2 Ka5 11.
Ke3 Kxa4 12. Kf3 Kb4 13. Kf4 Kc3 <HT>
18 6.64 -6.71 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb4
11. Kf5 Kc3 12. Ke5 Kc4 13. Kf4 Kxd4
14. Kf3 Kc4 15. Ke3 Kb4
18 12.16 +1 5. h4!!
18-> 13.52 -6.75 5. h42
19 14.09 -1 5. h4
19 20.75 -8.49 5. h4 gxh4+ 6. Kxh4 bxc5 7. dxc5 Kc6
8. Kg3 Kxc5 9. Kf4 d4 10. Kf3 Kb6 11.
Ke2 f4 12. a5+ Kxa5 13. Ke1 Kb4 14.
Ke2 Kc3 15. Kf3 d3 16. Kxf4
19 22.05 +1 5. cxb6+!!
19 22.86 +3 5. cxb6+!!
19 23.70 +M 5. cxb6+!!
19 23.80 -6.71 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Ke5 Kc4 12. Kf5 Kxd4 13. Kf4 Kd3
14. Ke5 Kc4 15. Kf4 Kb4 16. Ke3
19-> 24.25 -6.71 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Ke5 Kc4 12. Kf5 Kxd4 13. Kf4 Kd3
14. Ke5 Kc4 15. Kf4 Kb4 16. Ke3
20 25.52 -6.51 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Kf3 Kc3 12. Ke3 Kc4 13. Ke2 Kxd4
14. Kd2 Ke4 15. Ke2 Kf4 16. Kf2
20-> 26.67 -6.51 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Kf3 Kc3 12. Ke3 Kc4 13. Ke2 Kxd4
14. Kd2 Ke4 15. Ke2 Kf4 16. Kf2
21 30.05 +1 5. cxb6+!!
21 33.70 +3 5. cxb6+!!
21 37.37 +M 5. cxb6+!!
21 37.53 -6.59 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Kf3 Kb2 12. Ke3 Kc3 13. Ke2 Kxd4
14. Kd2 Kc4 15. Kc2 d4 16. Kd2 Kb3
17. Kd3
21-> 39.66 -6.59 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Kf3 Kb2 12. Ke3 Kc3 13. Ke2 Kxd4
14. Kd2 Kc4 15. Kc2 d4 16. Kd2 Kb3
17. Kd3
22 45.59 +1 5. cxb6+!!
22 51.52 +3 5. cxb6+!!
22 59.98 -3.34 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Ke3 Kc4 12. Ke2 Kxd4 13. Kd2 Ke4
14. Ke2 d4 15. Kd2 d3 16. Kd1 Ke3 17.
Ke1 d2+ 18. Kd1
22-> 1:02 -3.34 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Ke3 Kc4 12. Ke2 Kxd4 13. Kd2 Ke4
14. Ke2 d4 15. Kd2 d3 16. Kd1 Ke3 17.
Ke1 d2+ 18. Kd1
23 1:23 +1 5. cxb6+!!
23 1:43 -2.24 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Ke3 Kc3 12. Ke2 Kxd4 13. Kd2 Ke5
14. Ke3 d4+ 15. Kd3 Kd5 16. Kd2 Kc4
17. Kc2 d3+ 18. Kd2 Kd4 19. Ke1
23-> 1:49 -2.24 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Ke3 Kc3 12. Ke2 Kxd4 13. Kd2 Ke5
14. Ke3 d4+ 15. Kd3 Kd5 16. Kd2 Kc4
17. Kc2 d3+ 18. Kd2 Kd4 19. Ke1
24 2:25 -2.34 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Ke3 Kc3 12. Ke2 Kxd4 13. Kd2 Ke5
14. Ke3 d4+ 15. Kd3 Kd5 16. Kd2 Kc4
17. Kc2 d3+ 18. Kd1 Kc3 19. Kc1 Kc4
24-> 2:43 -2.34 5. cxb6+ Kxb6 6. h4 f4+ 7. Kh3 gxh4
8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb3
11. Ke3 Kc3 12. Ke2 Kxd4 13. Kd2 Ke5
14. Ke3 d4+ 15. Kd3 Kd5 16. Kd2 Kc4
17. Kc2 d3+ 18. Kd1 Kc3 19. Kc1 Kc4
the broken position for me was here...Crafty should not play c7 but cxb6.
[d]8/2k5/1p6/2Pp1pp1/P2P4/6KP/8/8 w
Black(1): setboard 8/2k5/1p6/2Pp1pp1/P2P4/6KP/8/8 w
White(1): mt 2
max threads set to 2
White(1): g
time surplus 30.00 time limit 3:00 (3:00)
depth time score variation (1)
starting thread 1
10-> 0.13 -0.20 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Ke5 Kc4
11 0.14 -0.20 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc4 8. Ke3
11-> 0.27 -0.20 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc4 8. Ke3
12 0.28 -0.20 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc4 8. Ke3 Kb3
12-> 0.30 -0.20 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc4 8. Ke3 Kb3
13 0.30 -1 1. cxb6+
13 0.33 -1.30 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc4 8. Ke3 Kc3 9. Ke2 Kxd4
13-> 0.44 -1.30 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc4 8. Ke3 Kc3 9. Ke2 Kxd4 (s=4)
14 0.47 +1 1. cxb6+!!
14 0.49 -1.30 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc4 8. Ke3 Kc3 9. Ke2 <HT> (s=3)
14-> 0.55 -1.30 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc4 8. Ke3 Kc3 9. Ke2 <HT> (s=6)
15 0.60 -1.56 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc4 8. Ke3 Kc3 9. Ke2 Kxd4 <HT>
(s=5)
15-> 0.77 -1.56 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc4 8. Ke3 Kc3 9. Ke2 Kxd4 <HT>
(s=3)
16 0.85 -1.56 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc4 8. Ke3 Kc3 9. Ke2 Kxd4 10.
Kd2 Kc4 (s=2)
16-> 0.99 -1.56 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc4 8. Ke3 Kc3 9. Ke2 Kxd4 10.
Kd2 Kc4 (s=4)
17 1.02 -1 1. cxb6+
17 1.11 -2.96 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Ke5 Kc4 8. Ke6 Kxd4 9. Kd6 Ke4 10.
Kc5 d4 11. Kc4 (s=3)
17-> 1.80 -2.96 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Ke5 Kc4 8. Ke6 Kxd4 9. Kd6 Ke4 10.
Kc5 d4 11. Kc4 (s=7)
18 1.82 -1 1. cxb6+
18 1.96 -6.71 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Ke5 Kc4 8. Kf5 Kxd4 9. Kf4 Kc4 10.
Kf5 Kc5 <HT> (s=6)
18-> 2.71 -6.71 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Ke5 Kc4 8. Kf5 Kxd4 9. Kf4 Kc4 10.
Kf5 Kc5 <HT> (s=6)
19 3.00 -6.59 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc3 8. Ke3 Kc4 9. Ke2 Kxd4 10.
Kd2 Kc4 11. Kc2 d4 12. Kd2 Kb3 13.
Kd3 <HT> (s=5)
19-> 3.96 -6.59 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc3 8. Ke3 Kc4 9. Ke2 Kxd4 10.
Kd2 Kc4 11. Kc2 d4 12. Kd2 Kb3 13.
Kd3 <HT> (s=2)
20 4.60 +1 1. cxb6+!!
20 5.25 +3 1. cxb6+!!
20 5.88 +M 1. cxb6+!!
20 7.27 -2.74 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc4 8. Ke2 Kxd4 9. Kd2 Kc4 10.
Kc2 d4 11. Kd2 d3 12. Ke3 Kc3
20-> 7.60 -2.74 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc4 8. Ke2 Kxd4 9. Kd2 Kc4 10.
Kc2 d4 11. Kd2 d3 12. Ke3 Kc3
21 8.83 -2.94 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc4 8. Ke2 Kxd4 9. Kd2 Kc4 10.
Kc2 d4 11. Kd2 d3 12. Ke3 Kc3 13. Kf3
21-> 9.64 -2.94 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc4 8. Ke2 Kxd4 9. Kd2 Kc4 10.
Kc2 d4 11. Kd2 d3 12. Ke3 Kc3 13. Kf3
22 9.71 -1 1. cxb6+
22 12.28 -3.34 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc4 8. Ke2 Kxd4 9. Kd2 Ke4 10.
Ke2 d4 11. Kd2 d3 12. Kd1 Ke3 13. Ke1
d2+ 14. Kd1
22-> 14.30 -3.34 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc4 8. Ke2 Kxd4 9. Kd2 Ke4 10.
Ke2 d4 11. Kd2 d3 12. Kd1 Ke3 13. Ke1
d2+ 14. Kd1 (s=2)
23 22.30 +1 1. cxb6+!!
23 30.77 -2.14 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc4 8. Ke2 Kxd4 9. Kd2 Ke4 10.
Ke2 d4 11. Kd2 d3 12. Kd1 Ke3 13. Ke1
Ke4 14. Kf1
23-> 33.05 -2.14 1. cxb6+ Kxb6 2. h4 f4+ 3. Kh3 gxh4
4. Kxh4 Ka5 5. Kg4 Kxa4 6. Kxf4 Kb3
7. Kf3 Kc4 8. Ke2 Kxd4 9. Kd2 Ke4 10.
Ke2 d4 11. Kd2 d3 12. Kd1 Ke3 13. Ke1
Ke4 14. Kf1
time=33.05 cpu=1298571% mat=0 n=135660050 fh=96% nps=4.10M
ext-> chk=15448294 cap=230146 pp=1095628 1rep=496179 mate=30577
predicted=1 nodes=135660050 evals=60130900 50move=0
endgame tablebase-> probes=0 hits=0
SMP-> split=9769 stop=248 data=9/64 cpu=715822:34 elap=33.05
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.