Author: Uri Blass
Date: 08:28:41 03/24/03
Go up one level in this thread
On March 24, 2003 at 10:58:22, Vincent Diepeveen wrote:
>On March 24, 2003 at 08:37:20, Peter Berger wrote:
>
>>On March 24, 2003 at 05:19:23, Alexander Kure wrote:
>>
>>>Dear Jorge,
>>>
>>>>I let Fritz 8 played it out under Shoot at only 10 Minutes per side and this was
>>>>the result DRAW!
>>>>
>>>>1... Bxh4 2. gxh4 g3 3. c5+ Kc6 {[%eval -59,18] [%emt 0:00:30]} 4. Kb4 {
>>>>(Nf3) [%eval -72,18] [%emt 0:00:40]} Kd5 {[%eval -75,17] [%emt 0:00:12]} 5. Nf3
>>>>{[%eval -59,18] [%emt 0:00:42]} g2 {[%eval -78,17] [%emt 0:00:24]} 6. c6 {
>>>>(Ng1) [%eval -97,17] [%emt 0:00:35]} Kxc6 {[%eval -97,16] [%emt 0:00:23]} 7.
>>>>Nxe5+ {[%eval 0,19] [%emt 0:00:25]} Kd6 {[%eval -28,18] [%emt 0:00:11]} 8. Nf3
>>>>{[%eval 0,19] [%emt 0:00:22]} Ke6 {(Kd5) [%eval 0,19] [%emt 0:00:29]} 9. Nxd4+
>>>>{[%eval 0,18] [%emt 0:00:22]} Ke5 {[%eval 0,18] [%emt 0:00:16]} 10. Ne2 {
>>>>[%eval 0,18] [%emt 0:00:22]} {Fritz 8:} a6 11. Kc5 a5 12. d4+ Ke4 13. d5 Kf3
>>>>14. Ng1+ Kf2 15. Nh3+ Kg3 16. Ng1 Kf2 {[%eval 0,22]} 1/2-1/2
>>>
>>>
>>>1...Bxh4 2. gxh4 g3 3. c5 is an intersting try.
>>>Your test game shows that Fritz has a problem winning this position. It is not a
>>>proof that this position is a draw ;-)
>>>
>>>Checkout this this line:
>>>
>>>3. c5 Kc6 4. Kb4 g2 5. Nf3 Kc7! and white is in a kind of zugzwang position,
>>>e.g. 6. Kc4 a5 7. Kb3 Kb7! is winning for black.
>>>
>>
>>I don't think so.
>>
>>8. Ng1 Kc6 9. Kc4 a4 10. Kb4 e4 11. Kxa4 exd3 12. Kb3 Kxc5 13. Kb2 draw.
>>
>>Greetings,
>>Peter
>
>1..bxh4!! 2.gxh4,g3 3.c5 is a good try but not helping much IMHO.
>
>I just tried a few moves:
>
>3.. kc6 4.kb4,a5! 5. and so on. black up +4.1
Yace paderborn does not see the score goes up for black(note that yace has
zugzwang detection)
The opposite:
After 4...a5 I got bigger scores than 0.81 for black at depth 20,21 but the
score goes down and white continues to increase it's score at depth 23:
depth=22 -0.81 . 5.Kc4 g2 6.Nf3 Kb7 7.Ng1 Kc7 8.Nh3 Kc6 9.Ng1 a4 10.Kb4 e4
11.Kxa4 exd3 12.Kb3 Kxc5 13.Kb2 Kc4 14.Kc1 Kc3 15.Kd1 Kb4 16.Ke1 {HT} {100}
Nodes: 159049334 NPS: 571770
Time: 00:04:38.17
depth=23 -0.41 ++ 5.Kc4 g2 6.Nf3 Kb7 7.Ng1 Kc7 8.Nh3 Kc6 9.Ng1 a4 10.Kb4 e4
11.Kxa4 Kxc5 12.dxe4 Kc4 13.Ka3 Kd3 14.Kb2 Kxe4 15.Kc1 d3 16.Nh3 Kd4 17.Kd2
{180}
Nodes: 244615295 NPS: 556323
Time: 00:07:19.70
depth=23 -0.41 t 5.Kc4 g2 6.Nf3 Kb7H 7.Ng1H Kc7H 8.Nh3H Kc6H 9.Ng1H Kd7H
10.Nf3H Kc7H 11.Ng1H a4H 12.Kb4H e4H 13.Ka5H exd3H 14.Kb4H d2H 15.Nf3H d1=QH
16.Nxd4H {HT}
Nodes: 272727079 NPS: 553760
Time: 00:08:12.50
depth=23 -0.41 . 5.Kc4 g2 6.Nf3 Kb7 7.Ng1 Kc7 8.Nh3 Kc6 9.Ng1 Kd7 10.Nf3 Kc7
11.Ng1 a4 12.Kb4 e4 13.Ka5 exd3 14.Kb4 d2 15.Nf3 d1=Q 16.Nxd4
Nodes: 292379143 NPS: 556139
Time: 00:08:45.73
I used yace paderborn under winboard.
The pv has to be wrong but I copied it from the analysis window.
Uri
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