Author: Uri Blass
Date: 02:07:10 06/10/01
Go up one level in this thread
On June 10, 2001 at 02:27:24, Eduard Nemeth wrote:
>I played this game against Fritz6 (Engine from 2001/4/20) today.
>
>hardware: P600
>hash: 128 MB
>
>[Event "Blitz:10'"]
>[Site "Stuttgart"]
>[Date "2001.06.10"]
>[Round "2"]
>[White "Nemeth,Eduard"]
>[Black "Fritz 6c"]
>[ECO "B20"]
>[Result "1-0"]
>
>1. e4 {0} c5 {0} 2. e5 {2} Nc6 {0.19/12 12} 3. f4 {9} g5
>{0.00/12 29} 4. Bc4 {20} gxf4 {-0.50/11 12} 5. d4 {13} cxd4
>{-0.97/10 16} 6. c3 {15} dxc3 {-1.41/10 17} 7. Bxf7+ {9}
>Kxf7 {-2.16/7 0} 8. Qh5+ {5} Ke6 {-0.22/10 29} 9. Qh3+ {2}
>Kxe5 {-0.78/9 11} 10. Bxf4+ {2} Kxf4 {-1.22/10 15} 11. Qh5
>{7} Qa5 {#10/10 30} 12. Ne2+ {6} Ke4 {#6/8 0} 13. Nbxc3+
>{6} Qxc3+ {#4/7 0} 14. Nxc3+ {3} Ke3 {#3/4 0} 15. Qf3+ {3}
>Kd4 {#2/3 0} 16. Qd5+ {3} Ke3 {#1/2 0} 17. Qe4# {15} 1-0
>
>
>Here the position after 10.Bf4+ and analysis by Fritz6, Deep Shredder, and
>Tiger 14:
>
>[D]r1bq1bnr/pp1pp2p/2n5/4k3/5B2/2p4Q/PP4PP/RN2K1NR b KQ - 0 10
>
>
>Nemeth,E - Fritz 6c, 128 MB hash
>r1bq1bnr/pp1pp2p/2n5/4k3/5B2/2p4Q/PP4PP/RN2K1NR b KQ - 0 1
>
>Analysis by Fritz 6:
>(in the game 10', Fritz6 played 10...Kxf4?)
>
> 10...Kxf4 11.Dh5 d5 12.Se2+ Ke4 13.Sbxc3+ Kd3 14.Td1+ Kc4 15.Txd5
> +- (1.81) Tiefe: 11/42 00:00:30 15348kN
>10...Kf6
> +- (1.78) Tiefe: 11/42 00:00:39 19632kN
>10...Kf6 11.Dh4+ Ke6 12.Dh3+ Kf7 13.Dh5+ Kg7 14.Dg5+ Kf7 15.Dh5+
> = (0.00) Tiefe: 11/42 00:00:51 25243kN
>10...Kf6 11.Dh4+ Ke6 12.Dh3+ Kf7 13.Dh5+ Kg7 14.Dg5+ Kf7 15.Dh5+
> = (0.00) Tiefe: 12/39 00:01:29 43364kN
>
>(Nemeth, ChessBits 10.06.2001)
>
>
>Engine: Deep Shredder, P600, 128Mb hash
>von Stefan Meyer-Kahlen
>Nemeth,Eduard - Fritz 6 Stufe=Blitz:10' B20 2001 1-0
>
> 9.01 1:29 -0.08-- 10...Kxf4 11.Dh5 d5 12.Sxc3 Lf5 13.Sf3 e5 14.O-O Db6+
>15.Kh1 Sf6 (15.501.669) 173.3
> 9.01 1:41 -0.58-- 10...Kxf4 11.Dh5 d5 12.Sxc3 Lf5 13.Sf3 e5 14.O-O Db6+
>15.Kh1 Dxb2 16.g3+ (17.554.846) 172.7
> 9.01 1:59 -M10 10...Kxf4 11.Dh5 Se5 12.Se2+ Ke4 13.Sbxc3+ Kd3 14.Dxe5 Sf6
>15.O-O-O+ Kc4 16.Td4+ (20.597.807) 173.0
> 9.03 2:02 -M10++ 10...Kf6 11.Dh4+ Kg7 12.Dg5+ Kf7 13.Dh5+ Ke6 14.Dh3+ Kd5
>15.Df3+ Kc5 16.Dxc6+ dxc6 17.b4+ Kxb4 18.a3+ Ka5 (21.246.125) 173.5
> 9.03 2:08 0.00++ 10...Kf6 11.Dh4+ Kg7 12.Dg5+ Kf7 13.Dh5+ Ke6 14.Dh3+ Kf6
>15.Dh4+ (22.197.067) 172.9
>
>
>Chess Tiger 14.0 (Lokasoft-GUI) , 96 MB hash
>
>00:00:09.6 3,38 9 1627898 Kxf4
>00:00:36.1 2,00 10 6321721 Kxf4 Qh5 d5 Nh3+ Ke4 Nxc3+ Kd4 Rd1+ Kc5 Rxd5+ Kb6
>Rxd8 Nxd8 Nd5+ Ka6
>00:03:10.3 -Mate in 9 11 35058495 Kxf4 Qh5 d5 Nxc3 Bf5 Nf3 Bh6 g3+ Ke3 Qxf5 Qa5
>Qc2 Qxc3+ Qxc3+ Ke4
>
>I break this analysis after 15 minutes (!), but this was the last analysis by
>Chess Tiger 14.0
>
>Question: BUG or not ???
>
>Eduard
No
Tiger14 is simply slower
I also believe that it is a bad design decision not to search for next best
after seeing checkmate against itself.
Tiger14 can see that Kf6 is the next best move in few seconds at short depth
if I give it 2 options.
New game - Deep Fritz
r1bq1bnr/pp1pp2p/2n5/4k3/5B2/2p4Q/PP4PP/RN2K1NR b KQ - 0 1
Analysis by Chess Tiger 14.0:
10...Kxf4 11.Qf3+ Kg5 12.Nh3+ Kg6 13.Qg4+ Kf6 14.0-0+ Ke5 15.Qf4+ Ke6 16.Qxf8
Qxf8 17.Rxf8
-+ (-6.22) Depth: 7 00:00:00 94kN
10...Kxf4 11.Qf3+ Ke5 12.Qxc3+ Kd5 13.Qxh8 Nf6 14.Nf3 Kc4
-+ (-4.72) Depth: 7 00:00:00 120kN
10...Kxf4 11.Qf3+ Ke5 12.Qxc3+ Kd6 13.Qxh8 Nf6 14.Nf3 Bh6 15.Qxd8 Nxd8
-+ (-4.28) Depth: 8 00:00:01 257kN
10...Kxf4
-+ (-3.38) Depth: 9 00:00:07 1635kN
10...Kxf4 11.Qh5 d5 12.g3+ Ke4 13.Nxc3+ Kd3 14.Rd1+ Kc4 15.Qe2+ Kc5 16.Rxd5+
Qxd5 17.Qb5+ Kd6 18.Nxd5
-+ (-1.96) Depth: 10 00:00:28 6507kN
10...Kxf4 11.Qh5 d5 12.Nxc3 Bf5 13.Nf3 Bh6 14.g3+ Ke3 15.Qxf5 Qa5 16.Qc2 Qxc3+
17.Qxc3+ Ke4
+- (#9) Depth: 11 00:02:58 42130kN
10...Kf6 11.Qh4+ Kf5 12.Qg5+ Ke6 13.Qg4+ Kf7 14.Qh5+ Kg7 15.Qg4+ Kf6 16.Qh4+
= (0.03) Depth: 12 00:19:14 295420kN
10...Kf6 11.Qh4+ Kf5 12.Qg5+ Ke6 13.Qg4+ Kf7 14.Qh5+ Kg7 15.Qg4+ Kf6 16.Qh4+
= (0.03) Depth: 12 00:20:13 309393kN
10...Kf6 11.Qh4+ Kf5 12.Qg5+ Ke6 13.Qg4+ Kf7 14.Qh5+ Kg7 15.Qg4+ Kf6 16.Qh4+
= (0.03) Depth: 13 00:25:13 382255kN
10...Kf6 11.Qh4+ Kf5 12.Qg5+ Ke6 13.Qg4+ Kf7 14.Qh5+ Kg7 15.Qg4+ Kf6 16.Qh4+
= (0.03) Depth: 14 00:41:59 631892kN
(Blass, Tel-Aviv 10.06.2001)
Uri
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