Author: Rémi Coulom
Date: 23:59:47 07/17/04
Go up one level in this thread
On July 17, 2004 at 16:17:18, Stuart Cracraft wrote:
>On July 17, 2004 at 10:27:34, Rob Basham wrote:
>
>>[D]1k6/1P6/K7/8/P7/2P5/8/8 w - - 0 1
>>
>>The new Crazy Bishop (oo52) plays 1. a5 and
>>ann. mate in just 15 seconds!
>>
>>See if your engine can do that well...!
>>
>>
>>
>>P3/850
>
>I don't know how Crazy Bishop did it that quickly but
>suspect one-move-response extension or singular, which
>I don't have presently. If someone thinks it is something
>else, let us all know.
I do neither of these extensions. My only extensions are checks, recaptures, and
pushing a pawn on the 7th rank. No checks in the QS. A lot of my speed comes
from my high number of nodes per second, I guess. Here is my output (P41.7GHz,
100Mb hash, 1.2M nodes/second, no EGTB):
00:00:00,00 0 ------ Depth = 1
00:00:00,00 1 +397 1. Kb6
00:00:00,00 4 +411 1. a5
00:00:00,00 5 +411 1. a5
00:00:00,00 6 ------ Depth = 2
00:00:00,00 10 +908 1. a5 Kc7
00:00:00,00 19 ------ Depth = 3
00:00:00,00 36 +899 1. a5 Kc7 2. Ka7
00:00:00,00 63 ------ Depth = 4
00:00:00,00 94 +1107 1. a5 Kc7 2. Ka7 Kd6
00:00:00,00 126 +1110 1. c4
00:00:00,00 150 +1110 1. c4
00:00:00,01 151 ------ Depth = 5
00:00:00,01 237 +1111 1. c4 Kc7 2. Ka7 Kc6
00:00:00,01 350 ------ Depth = 6
00:00:00,01 483 +1116 1. c4 Kc7 2. Ka7 Kc6 3. b8=Q Kc5
00:00:00,01 652 ------ Depth = 7
00:00:00,01 1021 +1112 1. c4 Kc7 2. Ka7 Kc6 3. b8=Q Kc5 4. Qc7+ Kd4
00:00:00,02 1384 +1114 1. a5
00:00:00,02 2076 +1118 1. a5 Kc7 2. Ka7 Kd6 3. b8=Q+ Kd5 4. a6
00:00:00,02 2077 ------ Depth = 8
00:00:00,02 4232 +1122 1. a5 Kc7 2. Ka7 Kd6 3. b8=Q+ Kd5 4. Qb5+ Ke4 5.
a6
00:00:00,03 5148 ------ Depth = 9
00:00:00,03 13370 +1125 1. a5 Kc7 2. Ka7 Kd6 3. b8=Q+ Kd5 4. Qb5+ Ke4 5.
a6 Ke3 6. c4
00:00:00,04 16914 ------ Depth = 10
00:00:00,08 68772 +1782 1. a5 Kc7 2. Ka7 Kd6 3. b8=Q+ Kd5 4. Kb6 Kc4 5.
a6 Kxc3 6. a7 Kd4
00:00:00,09 78355 ------ Depth = 11
00:00:00,16 169742 +1891 1. a5 Kc7 2. Ka7 Kd6 3. b8=Q+ Kd5 4. Kb6 Kc4 5.
Qc7+
00:00:00,18 203222 ------ Depth = 12
00:00:00,41 492050 +1895 1. a5 Kc7 2. Ka7 Kd6 3. b8=Q+ Kd5 4. Kb6 Kc4 5.
Qc7+ Kd3
00:00:00,48 591775 ------ Depth = 13
00:00:00,96 1199684 +1902 1. a5 Kc7 2. Ka7 Kd6 3. b8=Q+ Kd5 4. Kb6 Kc4 5.
Qe5
00:00:01,16 1462616 ------ Depth = 14
00:00:02,40 3005472 +1910 1. a5 Kc7 2. Ka7 Kd6 3. b8=Q+ Kd5 4. a6 Ke4 5.
Qb4+
00:00:02,86 3565677 ------ Depth = 15
00:00:06,00 7284759 +1921 1. a5 Kc7 2. Ka7 Kd6 3. b8=Q+ Kd5 4. Qf4 Ke6 5.
Kb6 Ke7 6. Kc6
00:00:06,91 8342588 ------ Depth = 16
00:00:07,05 8510340 +32720 1. a5 Kc7 2. Ka7 Kd6 3. b8=Q+ Kd5 4. Qf4 Ke6 5.
Kb6 Ke7 6. Qg5+ Kf7 7. a6 Kf8 8. a7
00:00:07,05 8510340 ------ Depth = 16
00:00:10,80 12505995 +32740 1. a5 Kc7 2. Ka7 Kd6 3. b8=Q+ Kd5 4. Qf4 Ke6 5.
Kb6 Ke7 6. Qg5+ Kf7 7. a6 Kf8 8. a7 Kf7 9. a8=Q
Ke6 10. Qad5#
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