Author: John Merlino
Date: 15:37:03 04/10/04
Go up one level in this thread
On April 10, 2004 at 15:59:58, Eduard Nemeth wrote:
>Poor analysis by Fritz 8!
>
>Pawn endgame:
>
>On ChesBase Server I plays today bullet. In the fallow position my Opponent have
>only 3 second for the rest. It is clear that I give no a draw in such a game - I
>thinks it is ok in Bullet/Blitz.
>
>For everyone human is on easy (simple!) now to seen that black will win here
>(normally).
>
>But for most programs it is very hard, to gives a correctly winning line for
>black.
>
>Fritz 8 is a little big BLIND here (hello Frans Morsch):
>
>[Event "Wertungspartie, 1m + 0s"]
>[Site "Großer Spielsaal"]
>[Date "2004.04.10"]
>[Round "?"]
>[White "Eduard"]
>[Black "Opponent"]
>[Result "1-0"]
>[ECO "A43"]
>[WhiteElo "?"]
>[BlackElo "?"]
>[Annotator "Nemeth,Eduard"]
>[SetUp "1"]
>[FEN "8/5pk1/3R2p1/2r1p3/4P2P/5PK1/8/8 w - - 0 47"]
>[PlyCount "5"]
>[TimeControl "60"]
>
>Time here: white here 9 seconds, Black 2,7 seconds:
>
>47. Rd5 {My Opponent offers a draw 0} Rxd5 {2} 48. exd5 {0} f5 {0} 49. d6 {
>. ' 2} 1-0
>
>(Time, and 1-0)
>
>On My P3 600 MHz:
>
>Eduard vs. an Opponent, Bullet 1m + 0s
>
>[D]8/5pk1/6p1/2rRp3/4P2P/5PK1/8/8 b - - 0 1
>
>Analysis by Fritz 8.0026:
>
>47...Txd5 48.exd5 f5 49.f4 e4 50.Kf2 Kf6 51.Ke2 Ke7 52.Ke3 Kd7 53.Kd4 Kd6
>= (0.00) Tiefe: 21/41 00:04:59 80312kN, tb=88346
>
>(Nemeth, Privat 10.04.2004)
>
>Poor analysis!
>
>Eduard
After playing around a bit with the position, it appears that it requires at
least a 25-ply search to see that Black wins after trading rooks.
After trading rooks, it still takes CM_SKR (on an AMD 1800+ without TBs) over
two minutes to see that Black wins.
Time Depth Score Positions Moves
0:00 7/14 -0.15 212159 2...Kf6 3.Kg4 Ke7 4.Kg5 f5 5.Kxg6
e4 6.h5 exf3 7.h6 f2 8.h7 f1=Q
9.h8=Q Qg2+ 10.Kxf5 Qf3+ 11.Kg5
Qxd5+ 12.Kf4
0:00 8/15 -0.19 292126 2...Kf6 3.Kg4 Ke7 4.Kg5 f5 5.Kxg6
e4 6.h5 exf3 7.h6 f2 8.h7 f1=Q
9.h8=Q Qg2+ 10.Kxf5 Qf3+ 11.Kg5
Qxd5+ 12.Kf4 Ke6
0:01 9/16 -0.13 443343 2...Kf6 3.Kg4 Ke7 4.Kg5 f5 5.Kxg6
e4 6.h5 exf3 7.h6 f2 8.h7 f1=Q
9.h8=Q Qg2+ 10.Kxf5 Qf3+ 11.Kg5
Qxd5+ 12.Kf4 Qc4+ 13.Ke3 Kd6
0:02 10/17 -0.14 760390 2...Kf6 3.Kg4 Ke7 4.Kg5 f5 5.Kxg6
e4 6.h5 exf3 7.h6 f2 8.h7 f1=Q
9.h8=Q Qg2+ 10.Kxf5 Qf3+ 11.Kg5
Qxd5+ 12.Kf4 Qc4+ 13.Ke3 Qe6+ 14.Kd4
Kd6
0:03 10/17 -0.53 1129542 2...f5 3.f4 Kf6 4.Kf3 e4+ 5.Kf2
Ke7 6.Ke3 Kd6 7.Kd4 Kd7 8.Kc4 Ke7
9.Kd4 Kd6 10.Kc4 e3 11.Kd3
0:04 11/18 -0.25 1479583 2...f5 3.f4 Kf6 4.Kf3 e4+ 5.Kf2
Ke7 6.Ke3 Kd6 7.Kd4 Kd7 8.Kc4 Ke7
9.Kd4 Kd6 10.Kc4 Kc7 11.Kc3 e3
12.Kd3
0:06 12/19 -0.25 2446801 2...f5 3.f4 Kf6 4.Kf3 e4+ 5.Kf2
Ke7 6.Ke3 Kd6 7.Kd4 Kd7 8.Kc4 Ke7
9.Kd4 Kd6 10.Kc4 Kc7 11.Kc3 e3
12.Kd3
0:11 13/20 -0.13 4428736 2...f5 3.f4 e4 4.Kf2 Kf7 5.Ke3
Ke7 6.Kd4 Kd6 7.Kc4 Kc7 8.Kc3 Kd8
9.Kb4 Kd7 10.Kc3 e3 11.Kd3 Kd6
12.Kxe3 Kxd5
0:25 14/21 -0.27 9358403 2...f5 3.f4 e4 4.Kf2 Kf7 5.Ke3
Ke7 6.Kd4 Kd6 7.Kc4 e3 8.Kd3 Kxd5
9.Kxe3 Kc4 10.Ke2 Kd4 11.Kf2 Ke4
12.Kg3 Kd5 13.Kf3
0:40 15/22 -0.42 14806916 2...f5 3.f4 e4 4.Kf2 Kf7 5.Ke3
Ke7 6.Kd4 Kd6 7.Kc4 e3 8.Kd3 Kxd5
9.Kxe3 Kc4 10.Ke2 Kd4 11.Kf3 Kd3
12.Kf2 Ke4 13.Kg3
1:07 16/23 -0.27 24569721 2...f5 3.f4 e4 4.Kf2 Kf7 5.Ke3
Ke7 6.Kd4 Kd6 7.Kc4 e3 8.Kd3 Kxd5
9.Kxe3 Kc4 10.Ke2 Kd4 11.Kf3 Kd3
12.Kf2 Ke4 13.Kg3 Kd5 14.Kf3
2:11 17/24 -2.02 47985285 2...f5 3.f4 e4 4.Kf2 Kf7 5.Ke3
Ke7 6.Kd4 Kd6 7.Kc4 e3 8.Kd3 Kxd5
9.Kxe3 Kc4 10.Ke2 Kd4 11.Kf3 Kd3
12.Kf2 Ke4 13.Kg3 Ke3 14.h5 gxh5
From the initial position, it would most likely take close to 10 minutes, and
maybe more.
jm
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