Author: Kurt Utzinger
Date: 02:47:49 08/10/02
Go up one level in this thread
On August 10, 2002 at 04:53:13, Vincent Lejeune wrote:
>after 42. a7 in the following game:
>[d]8/P5k1/7p/3p4/8/6PP/2p1nP1K/8 b - -
>
>here RebelXp anlysis window show : c1=Q Kg2 cxa3 a8=Q axa8 Kf1 axa2 ???????
>it's the first bug I found in this engine and i'm disapointed :'(
>after playing c1=Q and Kg2 RebelXP find the mate pretty quicky ...
>
>
>in fact it's mate in 12, tiger is very fast to find it, fritz 7 have some
>problems ...
Hi Vincent
You seem indeed to have detected a bug in Rebel XP. Below the analysis output of
Rebel XP:
Thinking....
+---+---+---+---+---+---+---+---+ elbe-biber - Vinvin
8 | | | | | | | | |
+---+---+---+---+---+---+---+---+ 00:00:00 00:00:02
7 | p | | | | | | *K| |
+---+---+---+---+---+---+---+---+
6 | | | | | | | | *p| Time infinite
+---+---+---+---+---+---+---+---+ Hash 28 Mb
5 | | | | *p| | | | | Engine Rebel XP
+---+---+---+---+---+---+---+---+ Personality rebel.eng
4 | | | | | | | | | anti-GM Off
+---+---+---+---+---+---+---+---+ Tactics Off
3 | | | | | | | p | p | Bluff Chess Off
+---+---+---+---+---+---+---+---+ Style Normal
2 | | | *p| | *N| p | | K | Strength Strongest
+---+---+---+---+---+---+---+---+ Search Nullmove
1 | | | | | | | | |
+---+---+---+---+---+---+---+---+ 41.. Qa7xg7 Kh7xg7
a b c d e f g h 42.. a6-a7
8/P5k1/7p/3p4/8/6PP/2p1nP1K/8 b - -
[Event "Partie sérieuse, 3m + 0s"]
[Site "Grande salle de jeu"]
[Date "2002.08.10"]
[Round "?"]
[White "elbe-biber"]
[Black "Vinvin"]
[Result "0-1"]
[WhiteElo "2272"]
[BlackElo "2114"]
[ECO "E41"]
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 d5 6.Nf3 O-O 7.O-O Nbd7 8.a3
Bxc3 9.bxc3 b6 10.a4 Ba6 11.cxd5 Bxd3 12.Qxd3 exd5 13.Ba3 Re8 14.Rad1
Rb8 15.Rfe1 Qc7 16.h3 Qc6 17.a5 c4 18.Qf5 b5 19.Ne5 Nxe5 20.dxe5 Ne4
21.Rd4 Nxc3 22.Bd6 Rbd8 23.Rh4 h6 24.Rg4 Rxd6 25.exd6 Qxd6 26.Qh5 b4
27.Rf4 Qe7 28.e4 b3 29.e5 b2 30.e6 Qxe6 31.Rxe6 b1 32.Kh2 Rxe6 33.Qxf7
Kh7 34.Qxe6 Qd3 35.Qd7 Qe2 36.Rg4 Qe5 37.g3 Ne2 38.Qxa7 c3 39.a6 c2
40.Rxg7 Qxg7 41.Qxg7 Kxg7 42.a7 0-1
00:00:00 1.00 3.02 42..c1=Q 43.a8=Q
00:00:00 1.07 3.27 42..d4 43.a8=Q c1=Q
00:00:00 2.00 3.27 42..d4 43.a8=Q c1=Q
00:00:00 2.02 3.27 42..c1=Q
00:00:00 2.02 3.27 42..c1=Q
00:00:00 2.02 10.39 42..c1=Q 43.h4 cxg1+ 44.Kh3 gxf2
00:00:00 3.00 10.39 42..c1=Q 43.h4 cxg1+ 44.Kh3 gxf2
00:00:00 4.00 10.54 42..c1=Q 43.Kg2 cxg1+
00:00:00 5.00 10.46 42..c1=Q 43.Kg2 cxc8 44.Kf1 Nd4
00:00:00 6.00 11.52 42..c1=Q 43.Kg2 cxa1 44.Kf3 Nd4+ 45.Kg2
axa7 (0)
00:00:00 7.00 11.52 42..c1=Q 43.Kg2 cxa1 44.Kf3 Nd4+ 45.Kg2
axa7 (0)
00:00:00 8.00 11.99 42..c1=Q 43.Kg2 cxa3 44.h4 axa7 45.Kf1
axe7 (0)
00:00:00 9.00 12.85 42..c1=Q 43.Kg2 cxa3 44.h4 d4 45.h5
axa7 (0)
00:00:00 10.00 13.18 42..c1=Q 43.Kg2 cxa3 44.a8=N axa8 45.Kf3
Ng1+ (0)
00:00:01 11.00 13.18 42..c1=Q 43.Kg2 cxa3 44.a8=N axa8 45.Kf3
Ng1+ (0)
00:00:01 12.00 14.69 42..c1=Q 43.Kg2 cxa3 44.a8=Q axa8 45.Kf1
Nd4 (1)
00:00:02 13.00 14.69 42..c1=Q 43.Kg2 cxa3 44.a8=Q axa8 45.Kf1
Nd4 (1)
00:00:05 14.00 19.27 42..c1=Q 43.Kg2 cxa3 44.h4 d4 45.Kf1
d3 (3)
00:00:06 15.00 19.27 42..c1=Q 43.Kg2 cxa3
00:00:07 16.00 19.27 42..c1=Q 43.Kg2 cxa3 44.h4 d4
00:00:12 17.00 19.27 42..c1=Q 43.Kg2 cxa3 44.h4 d4 45.Kf1
d3 (10)
00:00:24 18.00 19.48 42..c1=Q 43.Kg2 cxa3 44.h4 axa7 45.Kf1
Nc3 (20)
00:06:55 19.00 Mate in 9 moves 42..c1=Q 43.Kg2 cxa3 44.a8=Q axa8 45.h4
axa3 (46)
Positions : 412.044.055
Nodes per second : 938.596
Extensions (checks) : 564.791 (0%)
Extensions (captures) : 678.715 (0%)
Extensions (king safety) : 0 (0%)
Extensions (on depth) : 0 (0%)
Extensions (remaining) : 156.070 (0%)
Extensions (total) : 1.399.576 (0%)
Hash Table : 50.192.494 12.614.111 (99%)
Average depth : 19
Deepest depth : 57
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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