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Subject: Nice blitzgame against Fritz 6 - But BUG in Tiger 14.0 ?

Author: Eduard Nemeth

Date: 23:27:24 06/09/01


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





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