Author: Kurt Utzinger
Date: 23:33:35 01/16/04
Go up one level in this thread
On January 16, 2004 at 19:49:05, ALI MIRAFZALI wrote:
>In this position which happened in a game between Hiarcs 8 running at 1800 MHZ
>and the novag Handheld chess computer Sapphire(at 20 Mhz) ;Hiarcs 8 played
>27...Qxh2?
>Not noticing that after 28.Bxf7+! it is a Draw by perpetual check.Alas the
>Sapphire could not find the move in the actual game.
>[D]r5k1/5p1p/p5p1/1p3bR1/5P1q/1B6/PPP4P/1K1Q4 b
>Questions:
>1.Does your program play or consider 27..Qxh2?
>2.How long does it for your program to see the draw score after 27..Qxh2?
>Here is the complete game score:
>[Event "?"]
>[Site "?"]
>[Date "2003.12.13"]
>[Round ""]
>[White "Sapphire, Novag"]
>[Black "8, Hiarcs"]
>[Result "0-1"]
>
>1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6
>6.Bg5 e6 7.Qd2 Be7 8.O-O-O O-O 9.Nb3 d5 10.Bxf6 Bxf6
>11.exd5 Bxc3 12.Qxc3 exd5 13.Bb5 Qg5+ 14.Kb1 d4 15.Qc5 Qxg2
>16.Nxd4 Nxd4 17.Qxd4 Qg4 18.f4 Qh4 19.Rhg1 g6 20.Rd2 Bf5
>21.Rg5 Rfd8 22.Qe3 a6 23.Ba4 b5 24.Bb3 Re8 25.Qd4 Re1+
>26.Rd1 Rxd1+ 27.Qxd1 Qxh2 28.Qd4 Re8 29.Rg1 a5 30.Qa7 Re7
>31.Qb8+ Kg7 32.Qb6 a4 33.Qd4+ Kh6 34.Bd5 Rd7 35.Qc5 Bxc2+
>36.Kc1 Qxf4+ 37.Kxc2 Qf5+ 38.Kc3 Qxd5 39.Qxd5 Rxd5 40.Re1 g5
>41.Re4 Kg6 42.b3 axb3 43.Kxb3 h5 44.Kb4 h4 45.a4 h3
>46.axb5 h2 47.Re1 g4 48.b6 g3 0-1
Rebel 12.00.02 (DOS) on P4 1.8/28 MB hash does not
take into consideration 27...Qxh2 and after executing
this moves analyses as follows:
Thinking....
+---+---+---+---+---+---+---+---+ End 1 - Pos 1
8 | *R| | | | | | *K| |
+---+---+---+---+---+---+---+---+ 00:00:03 00:00:00
7 | | | | | | *p| | *p|
+---+---+---+---+---+---+---+---+
6 | *p| | | | | | *p| | Time infinite
+---+---+---+---+---+---+---+---+ Hash 28 Mb
5 | | *p| | | | *B| R | | Engine Rebel 12
+---+---+---+---+---+---+---+---+ Personality rebel.eng
4 | | | | | | p | | | anti-GM Off
+---+---+---+---+---+---+---+---+ Tactics Off
3 | | B | | | | | | | Bluff Chess Off
+---+---+---+---+---+---+---+---+ Style Normal
2 | p | p | p | | | | | *Q| Strength Strongest
+---+---+---+---+---+---+---+---+ Search Nullmove
1 | | K | | Q | | | | |
+---+---+---+---+---+---+---+---+ 1.. Qh4xh2
a b c d e f g h
r5k1/5p1p/p5p1/1p3bR1/5P2/1B6/PPP4q/1K1Q4 w - -
[Event "?"]
[Site "?"]
[Date "??.??.????"]
[Round "?"]
[White "Pos 1"]
[Black "End 1"]
[Result "*"]
[WhiteElo "?"]
[BlackElo "?"]
[FEN "r5k1/5p1p/p5p1/1p3bR1/5P2/1B6/PPP4q/1K1Q4 b - - 0 1"]
1..Qxh2 *
00:00:00 1.00 Mate in -3 moves 2.Qd7 Qh1+ 3.Rg1 Qxg1+ 4.Qd1 Qxd1+ (6)
(3.00) (0)
00:00:00 1.01 -0.33 2.Qd6 (1) (3.00)
00:00:00 1.14 0.70 2.Qd4 (1) (3.00)
00:00:00 2.00 0.39 2.Qd4 Rf8 (2) (3.00)
00:00:00 3.00 -0.32 2.Qd4 Rc8 3.Ka1 Bxc2 (4) (3.00)
00:00:00 3.02 0.32 2.Qd5 Rf8 3.Qd4 (3) (3.00)
00:00:00 4.00 -0.14 2.Qd5 Rf8 3.Qd4 Be6 4.Bxe6 (5) (3.00)
00:00:00 5.00 -0.32 2.Qd5 Rf8 3.Qd4 Rc8 4.Ka1 Bxc2 (6) (3.00)
00:00:00 5.02 -0.32 2.Qd4 Rc8 3.Ka1 Bxc2 (4) (3.00)
00:00:00 6.00 -0.38 2.Qd4 Rc8 3.Ka1 Qh3 4.Rg1 Bxc2 (6) (3.00)
00:00:00 7.00 -0.28 2.Qd4 Re8 (2) (3.00)
00:00:01 8.00 -0.39 2.Qd4 Re8 (2) (3.00)
00:00:03 9.00 -0.50 2.Qd4 Re8 (2) (4.00)
00:00:07 10.00 -0.40 2.Qd4 h6 3.Rg1 Re8 4.Rd1 Re2 5.Rc1 (7)
(2.75) (5)
00:00:09 10.02 -0.40 2.Bxf7+ (1) (2.75)
00:00:12 10.02 0.00 2.Bxf7+ Kxf7 3.Rxf5 gxf5 (4) (2.75)
00:00:30 11.00 0.00 2.Bxf7+ Kxf7 3.Rxf5 gxf5 (4) (3.73)
00:00:51 12.00 0.00 2.Bxf7+ Kxf7 3.Rxf5 gxf5 (4) (2.24)
00:01:52 13.00 0.00 2.Bxf7+ Kxf7 3.Rxf5 gxf5 4.Qd7 (5) (2.22)
00:04:15 14.00 0.00 2.Bxf7+ Kxf7 3.Rxf5 gxf5 4.Qd7 Kg8 5.Qe6
(7) (2.25) (139)
Positions : 190.688.757
Nodes per second : 669.083
Extensions (checks) : 0 (0%)
Extensions (captures) : 0 (0%)
Extensions (king safety) : 0 (0%)
Extensions (on depth) : 0 (0%)
Extensions (remaining) : 0 (0%)
Extensions (total) : 0 (0%)
Hash Table : 3.323.531 3.323.531 (100%)
Average depth : 21
Deepest depth : 49
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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