Author: Rafael Vasquez
Date: 12:40:58 12/16/99
I'm seriously thinking that AMD K6-3 450mhz is producing some strange errors
with REBEL CENTURY.Want to confirm it by reproducing it in a Pentium machine.
I put Rebel Century in player-player mode and went thru the position shown in
the logfile. Then I turned the books off and set autoplay. The time control was
40 in 2:30. Suddently RC declared chekmate? by two different moves Be3+ and
Bd3+(move 10)
logfile1:
--------------------------------------------------------------------------------
Thinking....
+---+---+---+---+---+---+---+---+ Player - CENTURY
8 | *R| *N| *B| *Q| *K| | | *R|
+---+---+---+---+---+---+---+---+ 02:30:00 02:29:55
7 | *p| *p| | *N| | *p| *B| *p|
+---+---+---+---+---+---+---+---+
6 | | | | *p| | | *p| | Time 40 in 02:30
+---+---+---+---+---+---+---+---+ Hash 100 Mb
5 | | | *p| p | p | | | | Engine Rebel Century
+---+---+---+---+---+---+---+---+ Personality Rebel Century
4 | | | | | | p | | | anti-GM Off
+---+---+---+---+---+---+---+---+ System Tiger Off
3 | | | N | | | | | | Combination Off
+---+---+---+---+---+---+---+---+ Style Normal
2 | p | p | | | | | p | p | Strength Strongest
+---+---+---+---+---+---+---+---+ Search Normal Search
1 | R | | B | Q | K | B | N | R |
+---+---+---+---+---+---+---+---+ 7.. f2-f4 Bf8-g7
a b c d e f g h 8.. e4-e5 Nf6-d7
rnbqk2r/pp1n1pbp/3p2p1/2pPP3/5P2/2N5/PP4PP/R1BQKBNR w KQkq -
[Event "?"]
[Site "?"]
[Date "??.??.????"]
[Round "?"]
[White "Player"]
[Black "CENTURY "]
[Result "*"]
[WhiteElo "?"]
[BlackElo "?"]
[ECO "A66"]
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.e5
Nfd7 *
00:00:05 1.00 0.46 9.exd6
00:00:05 2.00 0.39 9.exd6 O-O
00:00:05 3.00 0.57 9.exd6 O-O 10.Bb5
00:00:05 4.00 0.25 9.exd6 O-O 10.Bd3 Re8+ 11.Ne4 Qh4
12.g3 (0)
00:00:06 5.00 0.24 9.exd6 O-O 10.Ne4 Re8 11.Qa4
00:00:06 6.00 0.20 9.exd6 O-O 10.Nf3 Re8+ 11.Be2 f5+
00:00:08 7.00 0.31 9.exd6 O-O 10.Nf3 Re8+ 11.Be2 Bf8+
12.Nb5 (2)
00:00:14 8.00 0.12 9.exd6 O-O 10.Nf3 Nb6 11.Ng5+ Qxd6
12.Nge4 Bxc3 13.Nxc3 Qe7 14.Be2 (5)
00:00:56 9.00 0.31 9.exd6 O-O 10.Be2 Re8 11.Nf3 Bf8
12.O-O Bxd6 13.Ng5 (17)
00:02:07 10.00 -0.07 9.exd6 O-O 10.g3 Re8+ 11.Be2 Bxc3+
12.bxc3 (67)
Positions : 43.764.926
Nodes per second : 159.726
Extensions (checks) : 2.522.791 (5%)
Extensions (captures) : 672.792 (1%)
Extensions (king safety) : 39.579 (0%)
Extensions (on depth) : 1.020.422 (2%)
Extensions (remaining) : 188.467 (0%)
Extensions (total) : 4.444.051 (10%)
Hash Table : 448.859 337.412 (67%)
Average depth : 13
Deepest depth : 34
Thinking....
+---+---+---+---+---+---+---+---+ Player - CENTURY
8 | *R| *N| *B| *Q| *K| | | *R|
+---+---+---+---+---+---+---+---+ 02:25:21 02:30:00
7 | *p| *p| | *N| | *p| *B| *p|
+---+---+---+---+---+---+---+---+
6 | | | | p | | | *p| | Time 40 in 02:30
+---+---+---+---+---+---+---+---+ Hash 100 Mb
5 | | | *p| p | | | | | Engine Rebel Century
+---+---+---+---+---+---+---+---+ Personality Rebel Century
4 | | | | | | p | | | anti-GM Off
+---+---+---+---+---+---+---+---+ System Tiger Off
3 | | | N | | | | | | Combination Off
+---+---+---+---+---+---+---+---+ Style Normal
2 | p | p | | | | | p | p | Strength Strongest
+---+---+---+---+---+---+---+---+ Search Normal Search
1 | R | | B | Q | K | B | N | R |
+---+---+---+---+---+---+---+---+ 8.. e4-e5 Nf6-d7
a b c d e f g h 9.. e5xd6
rnbqk2r/pp1n1pbp/3P2p1/2pP4/5P2/2N5/PP4PP/R1BQKBNR b KQkq -
[Event "?"]
[Site "?"]
[Date "??.??.????"]
[Round "?"]
[White "Player"]
[Black "CENTURY "]
[Result "*"]
[WhiteElo "?"]
[BlackElo "?"]
[ECO "A66"]
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.e5
Nfd7 9.exd6 *
00:00:00 1.00 -1.06 9..Bxc3+ 10.bxc3
00:00:00 1.01 -0.24 9..O-O
00:00:00 2.00 -0.30 9..O-O 10.Ne4 Qh4+ 11.g3
00:00:00 3.00 -0.09 9..O-O 10.Ne4 f5 11.Ng5 Re8+ 12.Ne2
00:00:00 4.00 -0.09 9..O-O 10.Ne4 f5 11.Ng5 Re8+ 12.Ne2
00:00:01 5.00 -0.05 9..O-O 10.Nf3 Re8+ 11.Be2 f5+
00:00:01 6.00 -0.16 9..O-O 10.Be2 Re8 11.Nf3 Bf8+ 12.Nb5
00:00:05 7.00 0.05 9..O-O 10.Nf3 Nb6 11.Ng5
00:00:11 8.00 -0.20 9..O-O 10.Nf3 Nb6 11.Nb5 Re8+ 12.Be2
Nc4 13.O-O Nxb2 14.Bxb2 Bxb2 (8)
00:01:04 9.00 0.20 9..O-O 10.Nf3 Nb6 11.Bb5 Bf5 12.Be3
Qxd6 13.Rc1 (30)
00:01:55 10.00 -0.07 9..O-O 10.Nf3 Nb6 11.Be2 Qxd6 12.Nb5
Qd7 13.d6 Qf5 14.O-O (79)
Positions : 41.216.815
Nodes per second : 161.003
Extensions (checks) : 1.602.207 (3%)
Extensions (captures) : 658.446 (1%)
Extensions (king safety) : 14.084 (0%)
Extensions (on depth) : 1.176.779 (2%)
Extensions (remaining) : 200.622 (0%)
Extensions (total) : 3.652.138 (8%)
Hash Table : 352.224 340.149 (63%)
Average depth : 12
Deepest depth : 35
Thinking....
+---+---+---+---+---+---+---+---+ Player - CENTURY
8 | *R| *N| *B| *Q| | *R| *K| |
+---+---+---+---+---+---+---+---+ 02:25:44 02:25:21
7 | *p| *p| | *N| | *p| *B| *p|
+---+---+---+---+---+---+---+---+
6 | | | | p | | | *p| | Time 40 in 02:30
+---+---+---+---+---+---+---+---+ Hash 100 Mb
5 | | | *p| p | | | | | Engine Rebel Century
+---+---+---+---+---+---+---+---+ Personality Rebel Century
4 | | | | | | p | | | anti-GM Off
+---+---+---+---+---+---+---+---+ System Tiger Off
3 | | | N | | | | | | Combination Off
+---+---+---+---+---+---+---+---+ Style Normal
2 | p | p | | | | | p | p | Strength Strongest
+---+---+---+---+---+---+---+---+ Search Normal Search
1 | R | | B | Q | K | B | N | R |
+---+---+---+---+---+---+---+---+ 8.. e4-e5 Nf6-d7
a b c d e f g h 9.. e5xd6 O-O
rnbq1rk1/pp1n1pbp/3P2p1/2pP4/5P2/2N5/PP4PP/R1BQKBNR w KQ -
[Event "?"]
[Site "?"]
[Date "??.??.????"]
[Round "?"]
[White "Player"]
[Black "CENTURY "]
[Result "*"]
[WhiteElo "?"]
[BlackElo "?"]
[ECO "A66"]
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.e5
Nfd7 9.exd6 O-O *
00:00:00 1.00 0.55 10.Nf3
00:00:00 1.02 0.68 10.Bb5
00:00:00 2.00 0.29 10.Bb5 Re8+ 11.Nge2 Qh4+ 12.g3
00:00:00 2.02 0.36 10.Ne4 f5 11.Ng5 Re8+ 12.Ne2
00:00:00 3.00 0.36 10.Ne4 f5 11.Ng5 Re8+ 12.Ne2
00:00:00 4.00 0.21 10.Ne4 Re8 11.Qd3 b5
00:00:00 4.02 0.31 10.Nf3 Re8+ 11.Be2 f5
00:00:01 5.00 0.40 10.Nf3 Qa5 11.Bd2 Re8+ 12.Be2 Bd4
00:00:01 5.08 0.42 10.Be2 Re8 11.Nf3 Bf8+ 12.Nb5
00:00:01 6.00 0.32 10.Be2 Nb6 11.Ne4 Re8 12.Qd3 c4
13.Qc2 Bf5 14.Bf3 Bxe4 15.Bxe4 Qxd6 (1)
00:00:05 7.00 0.48 10.Be2 Re8 11.Nf3 Qa5 12.Bd2
00:00:10 8.00 -0.03 10.Be2 Nb6 11.Nb5 a6 12.Na3 Re8
13.Nf3 N8d7 (9)
00:00:12 8.01 0.07 10.Nf3 Nb6 11.Bb5 Bxc3+ 12.bxc3
Qxd6 13.c4 a6 14.Ba4 (10)
00:00:15 8.04 0.07 10.Bd3
00:00:15 8.04 Checkmate! 10.Player wins! 11. Bd3+
00:00:15 8.05 Checkmate! 10.Player wins! 11. Be3+
Positions : 2.759.850
Nodes per second : 183.990
Extensions (checks) : 74.853 (2%)
Extensions (captures) : 32.787 (1%)
Extensions (king safety) : 277 (0%)
Extensions (on depth) : 75.887 (2%)
Extensions (remaining) : 8.120 (0%)
Extensions (total) : 191.924 (6%)
Hash Table : 37.196 24.262 (4%)
Average depth : 9
Deepest depth : 24
--------------------------------------------------------------------------------
I cannot believe this and put the position in analisys mode. This time it will
not declare mate and I decided to move forward according to the PV. Now it will
show a -4128768 eval! for position in black's 10th move.
logfile2:
--------------------------------------------------------------------------------
Thinking....
+---+---+---+---+---+---+---+---+ Player - CENTURY
8 | *R| *N| *B| *Q| | *R| *K| |
+---+---+---+---+---+---+---+---+ 00:00:00 00:00:00
7 | *p| *p| | *N| | *p| *B| *p|
+---+---+---+---+---+---+---+---+
6 | | | | p | | | *p| | Time infinite
+---+---+---+---+---+---+---+---+ Hash 100 Mb
5 | | | *p| p | | | | | Engine Rebel Century
+---+---+---+---+---+---+---+---+ Personality Rebel Century
4 | | | | | | p | | | anti-GM Off
+---+---+---+---+---+---+---+---+ System Tiger Off
3 | | | N | B | | | | | Combination Off
+---+---+---+---+---+---+---+---+ Style Normal
2 | p | p | | | | | p | p | Strength Strongest
+---+---+---+---+---+---+---+---+ Search Normal Search
1 | R | | B | Q | K | | N | R |
+---+---+---+---+---+---+---+---+ 9.. e5xd6 O-O
a b c d e f g h 10.. Bf1-d3
rnbq1rk1/pp1n1pbp/3P2p1/2pP4/5P2/2NB4/PP4PP/R1BQK1NR b KQ -
[Event "?"]
[Site "?"]
[Date "??.??.????"]
[Round "?"]
[White "Player"]
[Black "CENTURY "]
[Result "*"]
[WhiteElo "?"]
[BlackElo "?"]
[ECO "A66"]
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.e5
Nfd7 9.exd6 O-O 10.Bd3 *
00:00:00 1.00 -1.12 10..Bxc3+ 11.bxc3
00:00:00 1.02 -0.46 10..Qh4+ 11.g3
00:00:00 1.14 -0.29 10..Re8+ 11.Ne4
00:00:00 2.00 -0.07 10..Re8+ 11.Nge2 Qh4+ 12.g3
00:00:00 3.00 -0.07 10..Re8+ 11.Nge2 Qh4+ 12.g3
00:00:00 4.00 -0.27 10..Re8+ 11.Nge2 Qb6 12.Be4
00:00:01 5.00 -0.21 10..Re8+ 11.Nge2 Qb6 12.Na4 Qb4+
13.Bd2 (1)
00:00:01 5.11 -0.21 10..Nb6
00:00:01 5.11 -0.04 10..Nb6 11.Be3 Qxd6 12.Qc2 Bxc3
13.Qxc3 Nxd5+ 14.Bxc5 Qxf4 (1)
00:00:02 6.00 -0.22 10..Nb6 11.Nge2 Qxd6 12.Bc2 Qf6
13.Ne4 Qh4+ 14.g3 (1)
00:00:03 6.01 -0.03 10..Re8+ 11.Kf1 Nf6 12.Bb5 Bd7 13.Bd2
00:00:07 7.00 0.23 10..Re8+ 11.Nge2 Qh4+ 12.Kf1 Nf6
13.Bb5 Ng4 14.Qe1 Qxe1+ 15.Kxe1
Nd7 (4)
00:00:15 8.00 0.20 10..Re8+ 11.Kf1 Nb6 12.Bb5 Bd7 13.Nf3
a6 14.Be2 (9)
Positions : 4.224.118
Nodes per second : 176.004
Extensions (checks) : 166.752 (3%)
Extensions (captures) : 56.555 (1%)
Extensions (king safety) : 2.267 (0%)
Extensions (on depth) : 114.187 (2%)
Extensions (remaining) : 14.673 (0%)
Extensions (total) : 354.434 (8%)
Hash Table : 54.022 59.432 (7%)
Average depth : 9
Deepest depth : 25
Thinking....
+---+---+---+---+---+---+---+---+ Player - CENTURY
8 | *R| *N| *B| *Q| | *R| *K| |
+---+---+---+---+---+---+---+---+ 00:00:00 00:00:00
7 | *p| *p| | *N| | *p| *B| *p|
+---+---+---+---+---+---+---+---+
6 | | | | p | | | *p| | Time infinite
+---+---+---+---+---+---+---+---+ Hash 100 Mb
5 | | | *p| p | | | | | Engine Rebel Century
+---+---+---+---+---+---+---+---+ Personality Rebel Century
4 | | | | | | p | | | anti-GM Off
+---+---+---+---+---+---+---+---+ System Tiger Off
3 | | | N | | | | | | Combination Off
+---+---+---+---+---+---+---+---+ Style Normal
2 | p | p | | | | | p | p | Strength Strongest
+---+---+---+---+---+---+---+---+ Search Normal Search
1 | R | | B | Q | K | B | N | R |
+---+---+---+---+---+---+---+---+ 8.. e4-e5 Nf6-d7
a b c d e f g h 9.. e5xd6 O-O
rnbq1rk1/pp1n1pbp/3P2p1/2pP4/5P2/2N5/PP4PP/R1BQKBNR w KQ -
[Event "?"]
[Site "?"]
[Date "??.??.????"]
[Round "?"]
[White "Player"]
[Black "CENTURY "]
[Result "*"]
[WhiteElo "?"]
[BlackElo "?"]
[ECO "A66"]
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.e5
Nfd7 9.exd6 O-O *
00:00:00 1.00 0.55 10.Nf3
00:00:00 1.02 0.68 10.Bb5
00:00:00 2.00 0.29 10.Bb5 Re8+ 11.Nge2 Qh4+ 12.g3
00:00:00 2.02 0.36 10.Ne4 f5 11.Ng5 Re8+ 12.Ne2
00:00:00 3.00 0.36 10.Ne4 f5 11.Ng5 Re8+ 12.Ne2
00:00:00 4.00 0.21 10.Ne4 Re8 11.Qd3 b5
00:00:00 4.02 0.31 10.Nf3 Re8+ 11.Be2 f5
00:00:01 5.00 0.40 10.Nf3 Qa5 11.Bd2 Re8+ 12.Be2 Bd4
00:00:01 5.08 0.42 10.Be2 Re8 11.Nf3 Bf8+ 12.Nb5
00:00:01 6.00 0.32 10.Be2 Nb6 11.Ne4 Re8 12.Qd3 c4
13.Qc2 Bf5 14.Bf3 Bxe4 15.Bxe4 Qxd6 (1)
00:00:05 7.00 0.48 10.Be2 Re8 11.Nf3 Qa5 12.Bd2
00:00:10 8.00 -0.03 10.Be2 Nb6 11.Nb5 a6 12.Na3 Re8
13.Nf3 N8d7 (9)
00:00:12 8.01 0.07 10.Nf3 Nb6 11.Bb5 Bxc3+ 12.bxc3
Qxd6 13.c4 a6 14.Ba4 (10)
00:00:55 9.00 0.32 10.Nf3 Nb6 11.Be2 Qxd6 12.Nb5 Qd7
13.d6 Qf5 14.O-O (35)
00:01:59 10.00 0.26 10.Nf3 Nb6 11.Be2 Bg4 12.O-O Qxd6
13.h3 Bxf3 (68)
00:05:46 11.00 0.29 10.Nf3 Nb6 11.Be2 Qxd6 12.Nb5 Qd8
13.d6 N8d7 14.Nc7 Rb8 15.O-O (165)
Positions : 112.324.133
Nodes per second : 169.162
Extensions (checks) : 3.089.671 (2%)
Extensions (captures) : 1.653.674 (1%)
Extensions (king safety) : 29.654 (0%)
Extensions (on depth) : 3.580.139 (3%)
Extensions (remaining) : 307.150 (0%)
Extensions (total) : 8.660.288 (7%)
Hash Table : 896.003 731.948 (92%)
Average depth : 12
Deepest depth : 39
Thinking....
+---+---+---+---+---+---+---+---+ Player - CENTURY
8 | *R| *N| *B| *Q| | *R| *K| |
+---+---+---+---+---+---+---+---+ 00:11:04 00:00:00
7 | *p| *p| | *N| | *p| *B| *p|
+---+---+---+---+---+---+---+---+
6 | | | | p | | | *p| | Time infinite
+---+---+---+---+---+---+---+---+ Hash 100 Mb
5 | | | *p| p | | | | | Engine Rebel Century
+---+---+---+---+---+---+---+---+ Personality Rebel Century
4 | | | | | | p | | | anti-GM Off
+---+---+---+---+---+---+---+---+ System Tiger Off
3 | | | N | | | N | | | Combination Off
+---+---+---+---+---+---+---+---+ Style Normal
2 | p | p | | | | | p | p | Strength Strongest
+---+---+---+---+---+---+---+---+ Search Normal Search
1 | R | | B | Q | K | B | | R |
+---+---+---+---+---+---+---+---+ 9.. e5xd6 O-O
a b c d e f g h 10.. Ng1-f3
rnbq1rk1/pp1n1pbp/3P2p1/2pP4/5P2/2N2N2/PP4PP/R1BQKB1R b KQ -
[Event "?"]
[Site "?"]
[Date "??.??.????"]
[Round "?"]
[White "Player"]
[Black "CENTURY "]
[Result "*"]
[WhiteElo "?"]
[BlackElo "?"]
[ECO "A66"]
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.e5
Nfd7 9.exd6 O-O 10.Nf3 *
00:00:00 1.00 -1.12 10..Bxc3+ 11.bxc3
00:00:00 1.06 -0.61 10..Qf6
00:00:00 1.08 -0.60 10..Qb6
00:00:00 1.11 -0.54 10..a6
00:00:00 1.14 -0.21 10..Re8+ 11.Be2
00:00:00 2.00 -0.23 10..Re8+ 11.Be2 f5
00:00:00 3.00 -0.23 10..Re8+ 11.Be2 f5
00:00:00 4.00 -0.34 10..Re8+ 11.Be2 Bf8 12.Nb5
00:00:01 5.00 -0.32 10..Re8+ 11.Be2 Qa5 12.Bd2 Bd4
00:00:01 5.17 -0.20 10..Nb6 11.Ne4 Re8 12.Qd3 N8d7
00:00:02 6.00 -0.36 10..Nb6 11.Nb5 Qe8+ 12.Be2 Qe4 13.Nc7
00:00:06 7.00 0.01 10..Nb6 11.Bb5 Bxc3+ 12.bxc3 Qxd6
13.c4 a6 14.Ba4 (3)
00:00:09 9.00 -4128768.00 10...b6
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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