Nice move by Yace!

[Guenther Simon]

[Site "RWBC Class B 5th Edition, Running since March 7th, Espresso PIV 2.67Ghz PO"]
[Date "04-02-2005"]
[White "Yace 0.99.87 "]
[Black "Kaissa 1.7 "]
[Result "1-0"]
[TimeControl "40150"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Nf3 Bc5 6. Bc4 Ne7 7. O-O
O-O 8. Bf4 Nbc6 9. Bd6 Bxd6 10. Qxd6 Ng6 11. Rfd1 Qf6 12. Rac1 Nce5
13. Nxe5 Nxe5 14. Be2 Ng6 15. g3 Ne5 16. Nb5 Nc6 17. Rc3 a6 18. Nd4
Qg6 19. Rc5 f6 20. Nf5 exf5 21. Bc4 Rf7 22. Rxc6 b5 23. Bb3 h6 24. Qe7
dxc6 25. Qe8 Kh7 26. Rd8 Qxg3 27. fxg3 Raa7 28. Bxf7 Rxf7 29. Qxf7
Be6 30. Qxe6 h5 31. Qf7 Kh6 32. Rh8 Kg5 33. Qxg7
1-0 {White mates}

20.Nf5! ...exf5??
[diag]r1b2rk1/1p1p2pp/p1nQppq1/2R5/3NP3/6P1/PP2BP1P/3R2K1 w - - 0 20[/diag]
r1b2rk1/1p1p2pp/p1nQppq1/2R5/3NP3/6P1/PP2BP1P/3R2K1 w - - 0 20

Code: Select all

777198 <second: move f7f6
Interrupting first
777198 >first : time 56530
otim 46230
777198 >first : f7f6
777208 <first : tc 900.00, tu 334.70, sec 565.30, i 0.00
777208 <first : 1 -57 0 222 t  20.e5 Nxe5 {-160}
777208 <first : 1 27 0 252 t  20.Nxc6 dxc6 {-80}
777208 <first : 1 27 0 491 .  20.Nxc6 dxc6 {-80}
777208 <first : 2 27 0 518 t  20.Nxc6 dxc6 {-80}
777208 <first : 2 27 0 845 .  20.Nxc6 dxc6 {-80}
777208 <first : 3 21 0 1381 t  20.Nxc6 dxc6 21.e5 fxe5 {-160}
777218 <first : 3 24 0 3001 t+ 20.Bd3 Nxd4 21.Qxd4 {-80}
777218 <first : 3 24 0 3097 t  20.Bd3 Nxd4 21.Qxd4 {-80}
777218 <first : 3 27 0 3313 t+ 20.Bf3 e5 21.Nf5 {HT} {-80}
777218 <first : 3 37 0 3798 t  20.Bf3 Ne5 21.Bg2 {-80}
777218 <first : 3 37 1 5000 .  20.Bf3 Ne5 21.Bg2 {-80}
777228 <first : 4 26 1 6364 t  20.Bf3 a5 21.a3 e5 {-80}
777248 <first : 4 26 3 24476 .  20.Bf3 a5 21.a3 e5 {-80}
777258 <first : 5 26 4 26218 t  20.Bf3 a5 21.a3 e5 22.Nf5 {-80}
777258 <first : 5 27 4 31151 t+ 20.Nxc6 dxc6 21.Rd4 a5 22.a3 e5 23.Bc4+H Rf7H 24.Bxf7+H Kxf7H 25.Qc7+H Kf8H {HT} {70}
777258 <first : 5 27 5 32617 t  20.Nxc6 dxc6 21.Rd4 a5H 22.a3H e5H {-80}
777328 <first : 5 27 11 90923 .  20.Nxc6 dxc6 21.Rd4 a5 22.a3 e5 {-80}
777348 <first : 6 31 14 121592 t  20.Nxc6 dxc6 21.Rd4 a5 22.Bh5 Qh6 23.a3 {-80}
777568 <first : 6 31 36 313819 .  20.Nxc6 dxc6 21.Rd4 a5 22.Bh5 Qh6 23.a3 {-80}
777768 <first : 7 15 55 458387 t  20.Nxc6 dxc6 21.Rd4 a5 22.Bd3 Qh6 23.e5 Qh3 {-80}
777808 <first : 7 16 56 465090 t+ 20.Bf3 Nxd4 21.Rxd4 b6 22.Qxb6 Qxe4 23.Bxe4 Kh8 {921}
777999 <first : 7 28 78 620915 t  20.Bf3 a5 21.a3 e5 22.Nf5 b6 23.Rc3 {-80}
778680 <first : 7 28 147 1320596 .  20.Bf3 a5 21.a3 e5 22.Nf5 b6 23.Rc3 {-80}
779271 <first : 8 19 205 1795784 t  20.Bf3 Ne5 21.Bg2 Nf7 22.Qe7H e5H 23.Nf5H b6H {-80}
779321 <first : 8 20 210 1833832 t+ 20.Nxc6 dxc6 21.Rd4 a5 22.a3 Qg5 23.Rxg5 fxg5 {421}
779551 <first : 8 24 234 2088706 t  20.Nxc6 dxc6 21.Rd4 a5 22.a3 Qh6 23.Qe7 Qg6 24.Bc4 {-80}
782365 <first : 8 24 515 4908297 .  20.Nxc6 dxc6 21.Rd4 a5 22.a3 Qh6 23.Qe7 Qg6 24.Bc4 {-80}
784107 <first : 9 26 689 6464374 t  20.Nxc6 dxc6 21.Rd4 Qh6 22.a3 Rf7 23.Bh5 g6 24.Bg4H e5H {-80}
789615 <first : 9 27 1240 11760816 t+ 20.Rdc1 Qxe4 21.Nxc6 dxc6 22.Bd3 Qa4 23.Bxh7+ Kxh7 24.Qxf8 b6 25.Rh5+ Kg6 {70}
793271 <first : 9 26 1605 15102904 t- 20.Rdc1 Qh6 21.Nf3 b6 22.R5c4 a5 23.Rxc6 dxc6 24.Rxc6 {-160}
793271 <first : 9 26 1605 15102904 t  20.Nxc6 dxc6 21.Rd4 Qh6 22.a3 Rf7 23.Bh5 g6 24.Bg4 e5 {-80}
796746 <first : 9 27 1952 18711144 t+ 20.Nf5 exf5 21.Bc4+ Rf7 22.Rxc6 bxc6 23.Qxc6 d5H 24.Qxa8H Rf8H 25.exf5H Bxf5H {0}
798769 <first : 9 36 2154 20675809 t  20.Nf5 Qe8 21.Nh4 Rf7 22.Bh5 g6 23.Be2H Qe7H 24.a3H {-80}
799820 <first : 9 36 2261 21699929 .  20.Nf5 Qe8 21.Nh4 Rf7 22.Bh5 g6 23.Be2 Qe7 24.a3 {-80}
799820 <first : 9 36 2261 21699929 f. 20.Nf5 Qe8 21.Nh4 Rf7 22.Bh5 g6 23.Be2 Qe7 24.a3 {-80}
799820 <first : CPU time 22.2921 s (98.6%)
799820 <first :
799820 <first : move d4f5
799820 >second: time 46230
otim 54268
799820 >second: d4f5
799940 <second: 7    165      11 106531  e6f5 e2c4 f8f7 e4f5 g6h5 d1e1 c6e5 c4f7 h5f7
799990 <second: 8    163      15 150681  e6f5 e2c4 f8f7 e4f5 g6h5 d1e1 c6e5 c4f7 h5f7 a2a4
800020 <second: 8    163      19 186276  e6f5 e2c4 f8f7 e4f5 g6h5 d1e1 c6e5 c4f7 h5f7 a2a4
800120 <second: 9    183      28 263260  e6f5 e2c4 f8f7 e4f5 g6h5 d1c1 b7b5 c1e1 c8b7 c4f7 h5f7
800120 <second: 9    183      28 272089  e6f5 e2c4 f8f7 e4f5 g6h5 d1c1 b7b5 c1e1 c8b7 c4f7 h5f7
800351 <second: 10    163      52 475138  e6f5 e2c4 f8f7 e4f5 g6h5 d1e1 c6e5 c4f7 h5f7 e1c1 e5c6 c1c4
800431 <second: 10    163      60 524479  e6f5 e2c4 f8f7 e4f5 g6h5 d1e1 c6e5 c4f7 h5f7 e1c1 e5c6 c1c4
800902 <second: 11    176     106 971552  e6f5 e2c4 f8f7 e4f5 g6h5 d1d3 h7h6 d3e3 b7b6 c4f7 h5f7 c5d5 c6e5
800902 <second: 11    176     107 981797  e6f5 e2c4 f8f7 e4f5 g6h5 d1d3 h7h6 d3e3 b7b6 c4f7 h5f7 c5d5 c6e5
802544 <second: 12    162     271 2500385  e6f5 e2c4 f8f7 e4f5 g6h5 d1e1 c6e5 c4f7 h5f7 e1c1 f7e8 c5c7 e5f3 g1g2 f3e5
802634 <second: 12    162     280 2586678  e6f5 e2c4 f8f7 e4f5 g6h5 d1e1 c6e5 c4f7 h5f7 e1c1 f7e8 c5c7 e5f3 g1g2 f3e5
833398 <second: 13     28    3357 32961212  e6f5 e2c4 f8f7 e4f5 g6h5 d1e1 c6e5 c4d5 g7g5 e1c1 e5c6 d6f6 g5g4 d5f7 h5f7
878063 <second: 13     28    7824 75146018  e6f5 e2c4 f8f7 e4f5 g6h5 d1e1 c6e5 c4d5 g7g5 e1c1 e5c6 d6f6 g5g4 d5f7 h5f7
878063 <second: move e6f5
Interrupting first
878063 >first : time 54268
otim 38405
878063 >first : e6f5
878073 <first : tc 900.00, tu 357.32, sec 542.68, i 0.00
878073 <first : 1 -226 0 3 t  21.exf5 {-340}
878073 <first : 1 -211 0 6 t  21.Rxf5 {-340}
878073 <first : 1 64 0 34 t+ 21.Bc4+ Rf7 22.Rxc6H bxc6H 23.Qxc6H fxe4H 24.Bxf7+H Kh8H 25.Bxg6H hxg6H {HT} {571}
878073 <first : 1 64 0 49 t  21.Bc4+ Rf7 {-420}
878073 <first : 1 64 0 94 .  21.Bc4+ Rf7 {-420}
878073 <first : 2 24 0 205 -- 21.Bc4+ Rf7 22.Bxf7+ Qxf7 23.Rxc6 bxc6H 24.Qc7H {HT} {-430}
878073 <first : 2 -83 0 465 -- 21.Bc4+ Rf7 22.Qb8 Rxb8H 23.Bxf7+H Qxf7H 24.Rxd7H {HT} {-1191}
878073 <first : 2 -172 0 950 t  21.Bc4+ Rf7 22.Rxf5 {-340}
878073 <first : 2 -172 0 1926 .  21.Bc4+ Rf7 22.Rxf5 {-340}
878073 <first : 3 -88 0 2011 ++ 21.Bc4+ Rf7 22.Rxf5 Nd4 23.Bxf7+ Qxf7 {-190}
878083 <first : 3 -83 0 3971 t  21.Bc4+ Rf7 22.Rxf5 b6 {-340}
878083 <first : 3 -82 0 4466 t+ 21.Rxc6 dxc6 22.Bc4+ Qf7 23.Bxf7+ Rxf7 {71}
878093 <first : 3 -72 1 5229 t  21.Rxc6 dxc6 22.Bc4+ Be6 23.Bxe6+ Kh8 24.Bxf5 {-150}
878093 <first : 3 -72 1 6683 .  21.Rxc6 dxc6 22.Bc4+ Be6 23.Bxe6+ Kh8 24.Bxf5 {-150}
878093 <first : 4 -79 1 10288 t  21.Rxc6 dxc6 22.Bc4+ Be6 23.Bxe6+ Kh8 24.Bxf5 Qg5 {-150}
878093 <first : 4 36 1 11192 ++ 21.Bc4+ Rf7 22.Rxc6 h5 23.Bxf7+ Qxf7H 24.Rc7H Qxa2H 25.exf5H Kh8H {70}
878103 <first : 4 36 1 12396 t  21.Bc4+ Rf7 22.Rxc6 bxc6H 23.exf5H Qxf5H 24.Bxf7+H Kxf7H 25.g4H Qxg4+H {HT} {-510}
878103 <first : 4 36 2 14160 .  21.Bc4+ Rf7 22.Rxc6 bxc6 23.exf5 Qxf5 24.Bxf7+ Kxf7 25.g4 Qxg4+ {HT} {-510}
878103 <first : 5 -4 2 20151 -- 21.Bc4+ Rf7 22.exf5 Qg4 23.Bxa6 {-260}
878113 <first : 5 -81 3 31275 t  21.Bc4+ Rf7 22.Rxf5 Qg4 23.Bxf7+ Kxf7 24.f3 {-190}
878113 <first : 5 -80 3 32251 t+ 21.Rxc6 Rf7 22.exf5 Qxf5 {-80}
878123 <first : 5 -72 5 45563 t  21.Rxc6 dxc6 22.Bc4+ Be6 23.Bxe6+ Kh8 24.Bxf5 Qg5 25.a3 {-150}
878153 <first : 5 -72 7 72091 .  21.Rxc6 dxc6 22.Bc4+ Be6 23.Bxe6+ Kh8 24.Bxf5 Qg5 25.a3 {-150}
878193 <first : 6 -77 11 97203 t  21.Rxc6 dxc6 22.Bc4+ Be6 23.Bxe6+ Kh8 24.Bxf5 Qg5 25.Qd7 g6 {-150}
878263 <first : 6 -77 18 168428 .  21.Rxc6 dxc6 22.Bc4+ Be6 23.Bxe6+ Kh8 24.Bxf5 Qg5 25.Qd7 g6 {-150}
878343 <first : 7 -76 26 245004 t  21.Rxc6 dxc6 22.Bc4+ Be6 23.exf5 Qg4 24.Rd4 Qf3 25.fxe6 {-150}
878403 <first : 7 -75 33 306088 t+ 21.Bc4+ Rf7 22.Rxc6 bxc6 23.Qxc6 fxe4 24.Bxf7+ Kxf7 25.Qxa8 e3 {70}
878403 <first : 7 -37 33 306624 ++ 21.Bc4+ Rf7 22.Rxc6 bxc6 23.Qxc6 fxe4 24.Bxf7+ Kxf7 25.Qxa8 e3 {70}
878403 <first : 7 63 33 308034 ++ 21.Bc4+ Rf7 22.Rxc6 bxc6 23.Qxc6 fxe4 24.Bxf7+ Kh8 25.Bxg6 hxg6 {571}
878473 <first : 7 81 40 373500 t  21.Bc4+ Rf7 22.Rxc6 bxc6 23.Qxc6 Bb7 24.Bxf7+ Qxf7 25.Qxb7 Rd8 {0}
878583 <first : 7 81 50 463235 .  21.Bc4+ Rf7 22.Rxc6 bxc6 23.Qxc6 Bb7 24.Bxf7+ Qxf7 25.Qxb7 Rd8 {0}
878914 <first : 8 88 83 785460 t  21.Bc4+ Rf7 22.Rxc6 bxc6 23.Qxc6 Bb7 24.Bxf7+ Qxf7 25.Qxb7 Rd8 26.Qc7 {0}
879204 <first : 8 88 113 1069042 .  21.Bc4+ Rf7 22.Rxc6 bxc6 23.Qxc6 Bb7 24.Bxf7+ Qxf7 25.Qxb7 Rd8 26.Qc7 {0}
879485 <first : 9 128 140 1308857 ++ 21.Bc4+ Rf7 22.Rxc6 bxc6 23.Qxc6 Bb7 24.Qxb7 fxe4 25.Bxf7+ Kxf7 26.Qxa8 Qg5 {420}
880897 <first : 9 175 282 2728137 t  21.Bc4+ Rf7 22.Rxc6 bxc6 23.Qxc6 Bb7 24.Qxb7 Rf8 25.Bxf7+ Rxf7 26.Qc8+ Rf8 27.Qxa6 fxe4 {0}
881738 <first : 9 175 366 3804008 .  21.Bc4+ Rf7 22.Rxc6 bxc6 23.Qxc6 Bb7 24.Qxb7 Rf8 25.Bxf7+ Rxf7 26.Qc8+ Rf8 27.Qxa6 fxe4 {0}
883841 <first : 10 175 577 6204130 t  21.Bc4+ Rf7 22.Rxc6 bxc6 23.Qxc6 Bb7 24.Qxb7 Rf8 25.Bxf7+ Rxf7 26.Qc8+ Rf8 27.Qxa6 fxe4 28.Rxd7 {80}
885674 <first : 10 175 760 8531153 .  21.Bc4+ Rf7 22.Rxc6 bxc6 23.Qxc6 Bb7 24.Qxb7 Rf8 25.Bxf7+ Rxf7 26.Qc8+ Rf8 27.Qxa6 fxe4 28.Rxd7 {80}
887636 <first : 11 215 956 10388039 ++ 21.Bc4+ Rf7 22.Rxc6 bxc6 23.Qxc6 Bb7 24.Qxb7 Rf8 25.Rxd7 Kh8 26.Bxf7 fxe4 {350}
891171 <first : 11 216 1310 14887464 t  21.Bc4+ Rf7 22.Rxc6 bxc6 23.Qxc6 Bb7H 24.Qxb7H Rf8H 25.Rxd7H {HT} {-70}
897150 <first : 11 216 1907 22300087 .  21.Bc4+ Rf7 22.Rxc6 bxc6 23.Qxc6 Bb7 24.Qxb7 Rf8 25.Rxd7 {HT} {-70}
897150 <first : 11 216 1907 22300087 f. 21.Bc4+ Rf7 22.Rxc6 bxc6 23.Qxc6 Bb7 24.Qxb7 Rf8 25.Rxd7 {HT} {-70}
897150 <first : CPU time 18.6068 s (97.5%)
897150 <first :
897150 <first : move e2c4

[Will Singleton]

What's remarkable is that Kaissa took 78 secs to play exf5, not seeing the problem. (did I read your output right?) Most engines switch to Qe8 in a few seconds. Is Kaissa configured correctly?

Will

[Guenther Simon]

What's remarkable is that Kaissa took 78 secs to play exf5, not seeing the problem. (did I read your output right?) Most engines switch to Qe8 in a few seconds. Is Kaissa configured correctly?

Will

It is remarkable and it is configured right. It seems it totally misses
22.Rxc6! all along its PVs for 78 seconds.

Guenther

[mike schoonover]

hi will and guenther,
its not surprising that kaissa did'nt see the move for so long.
i let crafty1919bh analyse the original position.
never even considered Nf5.
regatrds
mike

White(1): setboard r1b2rk1/1p1p2pp/p1nQppq1/2R5/3NP3/6P1/PP2BP1P/3R2K1 w - - 0 1

+---+---+---+---+---+---+---+---+
8 |<R>| . |<B>| . | |<R>|<K>| . |
+---+---+---+---+---+---+---+---+
7 | . |<P>| . |<P>| . | |<P>|<P>|
+---+---+---+---+---+---+---+---+
6 |<P>| . |<N>|-Q-|<P>|<P>|<Q>| . |
+---+---+---+---+---+---+---+---+
5 | . | |-R-| | . | | . | |
+---+---+---+---+---+---+---+---+
4 | | . | |-N-|-P-| . | | . |
+---+---+---+---+---+---+---+---+
3 | . | | . | | . | |-P-| |
+---+---+---+---+---+---+---+---+
2 |-P-|-P-| | . |-B-|-P-| |-P-|
+---+---+---+---+---+---+---+---+
1 | . | | . |-R-| . | |-K-| |
+---+---+---+---+---+---+---+---+
a b c d e f g h

White(1): analyze
clearing hash tables
time limit 4.50 (31.50)
depth time score variation (1)
6 0.14 -0.04 1. Nxc6 bxc6 2. Rd4 Qh6 3. Qe7 Rf7
4. Qe8+ Rf8 5. Qe7
6-> 0.24 -0.04 1. Nxc6 bxc6 2. Rd4 Qh6 3. Qe7 Rf7
4. Qe8+ Rf8 5. Qe7
7 0.35 0.01 1. Nxc6 bxc6 2. Qf4 e5 3. Qf3 Rb8 4.
Bc4+ Kh8 5. Rd2
7-> 0.39 0.01 1. Nxc6 bxc6 2. Qf4 e5 3. Qf3 Rb8 4.
Bc4+ Kh8 5. Rd2
8 0.57 -0.08 1. Nxc6 bxc6 2. Rd4 Qh6 3. b4 Ra7 4.
Qe7 Rf7 5. Qe8+ Rf8 6. Qe7
8-> 1.38 -0.08 1. Nxc6 bxc6 2. Rd4 Qh6 3. b4 Ra7 4.
Qe7 Rf7 5. Qe8+ Rf8 6. Qe7
9 1.82 -0.11 1. Nxc6 bxc6 2. Qf4 Qf7 3. Qd6 a5 4.
Bh5 g6 5. Be2 a4
9-> 2.64 -0.11 1. Nxc6 bxc6 2. Qf4 Qf7 3. Qd6 a5 4.
Bh5 g6 5. Be2 a4
10 3.61 -0.03 1. Nxc6 bxc6 2. Qf4 e5 3. Qf3 Rb8 4.
b3 Qg5 5. Bc4+ Kh8 6. Rd6 Re8 <HT>
10-> 5.19 -0.03 1. Nxc6 bxc6 2. Qf4 e5 3. Qf3 Rb8 4.
b3 Qg5 5. Bc4+ Kh8 6. Rd6 Re8 <HT>
11 13.49 0.00 1. Nxc6 bxc6 2. b4 Qxe4 3. Bd3 Qxb4
4. Bxh7+ Kf7 5. Bg6+ Kg8 6. Bh7+
11-> 24.19 0.00 1. Nxc6 bxc6 2. b4 Qxe4 3. Bd3 Qxb4
4. Bxh7+ Kf7 5. Bg6+ Kg8 6. Bh7+
12 1:02 -0.03 1. Nxc6 dxc6 2. Rd4 Qe8 3. Bc4 Rf7
4. Bb3 Kh8 5. Qd8 Bd7 6. Qc7 Qb8 7.
Qb6
12-> 1:22 -0.03 1. Nxc6 dxc6 2. Rd4 Qe8 3. Bc4 Rf7
4. Bb3 Kh8 5. Qd8 Bd7 6. Qc7 Qb8 7.
Qb6
13 3:21 0.00 1. Nxc6 dxc6 2. e5 fxe5 3. Rxe5 a5
4. Qe7 Qf6 5. Qxf6 gxf6 6. Re4 e5 7.
Bc4+ Kg7 8. g4 b6
13-> 3:47 0.00 1. Nxc6 dxc6 2. e5 fxe5 3. Rxe5 a5
4. Qe7 Qf6 5. Qxf6 gxf6 6. Re4 e5 7.
Bc4+ Kg7 8. g4 b6
White(1): exit

[Bryan Hofmann]

hi will and guenther,
its not surprising that kaissa did'nt see the move for so long.
i let crafty1919bh analyse the original position.
never even considered Nf5.
regatrds
mike

The issue is the fact that Kaissa made the move of exf5 which is a blunder. Crafty Cito sees the Nf5 move along with the best follow up of Qe8.

Code: Select all


Crafty Cito:
   6   00:00        104.660   1.162.888   -0.12   1. Nxc6 bxc6 2. Rd4 Qh6 3. Qe7 Rb8 4. Rh5
   6   00:00        172.975   1.235.535   -0.12   1. Nxc6 bxc6 2. Rd4 Qh6 3. Qe7 Rb8 4. Rh5
   7   00:00        385.403   1.376.439   -0.19   1. Nxc6 dxc6 2. Rd4 Qf7 3. Bh5 g6 4. Bg4 a5
   7   00:01        734.960   1.386.716   -0.19   1. Nxc6 dxc6 2. Rd4 Qf7 3. Bh5 g6 4. Bg4 a5
   8   00:01        925.011   1.380.613   -0.11   1. Nxc6 dxc6 2. Rd4 Qf7 3. Bc4 a5 4. Qf4 b5 5. Be2
   8   00:01      1.420.416   1.392.564   -0.11   1. Nxc6 dxc6 2. Rd4 Qf7 3. Bc4 a5 4. Qf4 b5 5. Be2
   9   00:02      2.450.417   1.424.661   -0.12   1. Nxc6 bxc6 2. Rd4 Ra7 3. b4 Qh6 4. Qe7 e5 5. Rd6 Qg5
   9   00:03      3.606.480   1.472.032   -0.12   1. Nxc6 bxc6 2. Rd4 Ra7 3. b4 Qh6 4. Qe7 e5 5. Rd6 Qg5
  10   00:05      7.926.910   1.378.593   -0.17   1. Nxc6 dxc6 2. Rd4 Qe8 3. Bc4 Rf7 4. f3 Qd7 5. Kf2 b5 6. Qxd7 Bxd7
  10   00:09     14.021.910   1.438.144   -0.17   1. Nxc6 dxc6 2. Rd4 Qe8 3. Bc4 Rf7 4. f3 Qd7 5. Kf2 b5 6. Qxd7 Bxd7
  11   00:15     22.632.012   1.508.800   -0.18   1. Nxc6 dxc6 2. Rd4 Qe8 3. e5 fxe5 4. Rxe5 Qg6 5. Bd3 Qh6 6. Rh4 Qc1+ 7. Kg2 h6
  11   00:29     42.999.691   1.482.747   -0.14   1. Nf5 Qe8 2. Nd4 Qf7 3. Bh5 g6 4. Be2 b6 5. Rc3 Bb7 6. Qf4
  11   00:36     51.722.302   1.436.730   -0.14   1. Nf5 Qe8 2. Nd4 Qf7 3. Bh5 g6 4. Be2 b6 5. Rc3 Bb7 6. Qf4
  12   00:39     56.979.689   1.461.017   -0.09   1. Nf5 Qe8 2. Nd4 Ne5 3. Rc7 Qg6 4. f3 Qh6 5. f4 Nc6 6. Nxc6 bxc6 7. Bc4
  12   00:47     70.531.737   1.500.675   -0.09   1. Nf5 Qe8 2. Nd4 Ne5 3. Rc7 Qg6 4. f3 Qh6 5. f4 Nc6 6. Nxc6 bxc6 7. Bc4
  13   01:10    103.253.913   1.475.055   -0.11   1. Nf5 Qe8 2. Nd4 Qf7 3. Bc4 Kh8 4. Nb3 Qe8 5. Nd4 e5 <HT>


[Guenther Simon]

I could verify the same problem with Kaissas' successor Patriot
latest version 1.30.

Patriot 1.30, main hash 96MB, pawn hash 32MB, PIV 2.67Ghz:
At least it finds Qe8 finally but after more than 2 minutes and yet
not because it saw 22.Rxc6! in its PVs.


Guenther

Code: Select all

4306 >first : setboard r1b2rk1/1p1p2pp/p1nQppq1/2R2N2/4P3/6P1/PP2BP1P/3R2K1 b - - 0 1
4577 <first : 40 moves/60 minutes first time control
4577 <first : 40 moves/60 minutes second time control
4577 <first : ponder mode enable.
4577 <first : ponder mode disable.
4577 <first : pong 2
7201 >first : name Guenther Simon
7201 >first : time 360000
otim 360000
7201 >first : go
7631 <first :     7    105      13 101845  e6f5 e2c4 f8f7 e4f5 g6h5 d1e1 c6e5 c4f7 h5f7
7641 <first :     7    105      14 116895  e6f5 e2c4 f8f7 e4f5 g6h5 d1e1 c6e5 c4f7 h5f7
7691 <first :     8    103      18 158787  e6f5 e2c4 f8f7 e4f5 g6h5 d1e1 c6e5 c4f7 h5f7 a2a4
7781 <first :     8    103      28 249465  e6f5 e2c4 f8f7 e4f5 g6h5 d1e1 c6e5 c4f7 h5f7 a2a4
7841 <first :     9    112      33 305092  e6f5 e2c4 f8f7 e4f5 g6h5 d1d3 a6a5 d3e3 c6e5 c4f7 h5f7
7861 <first :     9    112      35 321464  e6f5 e2c4 f8f7 e4f5 g6h5 d1d3 a6a5 d3e3 c6e5 c4f7 h5f7
7972 <first :    10    103      47 439472  e6f5 e2c4 f8f7 e4f5 g6h5 d1e1 c6e5 c4f7 h5f7 e1c1 e5c6 c1c4
8562 <first :    10    103     106 1079135  e6f5 e2c4 f8f7 e4f5 g6h5 d1e1 c6e5 c4f7 h5f7 e1c1 e5c6 c1c4
8983 <first :    11    113     148 1502626  e6f5 e2c4 f8f7 e4f5 g6h5 d1d3 a6a5
9103 <first :    11    113     159 1614669  e6f5 e2c4 f8f7 e4f5 g6h5 d1d3 a6a5
10115 <first :    12    102     260 2607911  e6f5 e2c4 f8f7 e4f5 g6h5 c4b3
10445 <first :    12    102     293 2918378  e6f5 e2c4 f8f7 e4f5 g6h5 c4b3
28451 <first :    13    -32    2094 21537933  e6f5 e2c4 f8f7 e4f5 g6h5 d1e1 c6e5 c4d5 g7g5 e1c1 e5c6 d6f6 g5g4 d5f7 h5f7
134984 <first :    13     23   12748 126107640  g6e8 f5d4 c6e5 c5c7 e5f7 d6c5 f7g5 f2f3 e8g6 d1c1 g5h3 g1g2 h3f4 g2h1 f4h3
138730 <first :    13     23   13123 129944389  g6e8 f5d4 c6e5 c5c7 e5f7 d6c5 f7g5 f2f3 e8g6 d1c1 g5h3 g1g2 h3f4 g2h1 f4h3
138730 <first : move g6e8