Quick test of Toga 1.4beta vs Toga 3.21se

[Howard E]

20 nunn positions
ponder off
Athlon 2800+
128 mb ram each
time control: 2min plus 10 sec inc
result: 24-16 in favour of Toga 1.4 beta

72 point rating difference

[jarkkop]

3'/40+3'/40+3'40 0

Toga was having two cores in use and to keep things "fair" Rybka used only one, 20 Nunn2 starting positions with colors reversed

Toga II 1.4 beta5c - Rybka 2.3.2 32-bit 20.0 - 20.0 +11/-11/=18 50.00%
Toga II 1.4 beta5c - Rybka 1.2f 32-bit 22.0 - 18.0 +8/-4/=28 55.00%

[Eelco de Groot]

I'm planning a small match pitting the new Toga 1.4 beta against Shredder 11 and trying to find a new Checkov settings for Toga which after all has undergone quite a lot of changes! If you take a look at the code, the engine has undergone almost a complete overhaul. Not that there isn't anything remaining from the old code but the code is mainly enlarged with additions also here and there from other programmers; there is interior node recognition for instance as described by Daniel Shawul, and razoring has been added after an idea from Tord Romstad.

So it is not at all sure if the settings or other changes I made still work but it is all the more interesting I think!

The first games Toga 1.4 Checkov played were better than the results so far against Toga 1.4 beta 5c in the default settings, but that is maybe for another post. Shredder walked into an opening, even using its own book, were it could not find the right continuation I think with Black. The first game was a very short draw and with the same line but reversed colours Shredder was more or less short circuited, in the second game it had to resign after just 26 moves

64 Mb hash tables, Shredder GUI, both programs using Shredder 11.bkt in Standard mode so this kind of thing can happen. But I do think Shredder can use some extra move suggestions in this Nimzo-Indian. Maybe I will add the game to book.


[Event "12 Minutes/Game + 6 Seconds/Move"]
[Site "Engine Match"]
[Date "2008.01.31"]
[Round "1"]
[White "Shredder 11 Default"]
[Black "Toga Checkov 1.4 beta5c settingsbb5men"]
[Result "1/2-1/2"]
[ECO "E47 - Nimzo-Indian/Main line"]

1. d4 {book 0s} Nf6 {book 0s} 2. c4 {book 0s} e6 {book 0s}
3. Nc3 {book 0s} Bb4 {book 0s} 4. e3 {book 0s} O-O {book
0s} 5. Bd3 {book 0s} c5 {book 0s} 6. Nge2 {book 0s} cxd4
{book 0s} 7. exd4 {book 0s} d5 {book 0s} 8. cxd5 {book 0s}
Nxd5 {book 0s} 9. O-O {book 0s} Nc6 {book 0s} 10. Nxd5
{book 0s} exd5 {-0.17/14 27s} 11. Nf4 {book 0s (a3)} Bd6
{book 0s} 12. Re1 {book 0s} g6 {-0.27/14 36s} 13. Bc2
{+0.09/13 33s (Be3)} Be6 {+0.06/14 18s} 14. Bb3 {+0.08/14
29s (Nxe6)} Bc7 {-0.16/15 28s} 15. Rxe6 {+0.30/15 1:28m
(g3)} fxe6 {+0.05/13 6s} 16. Nxe6 {+0.69/13 8s} Bxh2+
{-0.48/15 27s (Qd6)} 17. Kh1 {+0.72/14 15s} Qe7 {-0.40/15
30s} 18. Nxf8 {+0.67/16 36s (Bxd5)} Rxf8 {-0.15/14 22s}
19. Bxd5+ {+0.67/16 25s} Kh8 {-0.11/15 17s (Kg7)} 20. Bxc6
{+0.81/15 26s (Qg4)} Qh4 {0.00/15 16s (bxc6)} 21. Bd7
{0.00/16 23s} Bd6+ {0.00/16 15s (Rxf2)} 22. Bh3 {0.00/17
11s} Rxf2 {0.00/17 26s} 23. Qd3 {0.00/17 24s} 1/2-1/2

[d]7k/pp5p/3b2p1/8/3P3q/3Q3B/PP3rP1/R1B4K b - -

Final position, declared a draw

[Event "12 Minutes/Game + 6 Seconds/Move"]
[Site "Engine Match"]
[Date "2008.01.31"]
[Round "2"]
[White "Toga Checkov 1.4 beta5c settingsbb5men"]
[Black "Shredder 11 Default"]
[Result "1-0"]
[ECO "E47 - Nimzo-Indian/Main line"]

1. d4 {book 0s} Nf6 {book 0s} 2. c4 {book 0s} e6 {book 0s}
3. Nc3 {book 0s} Bb4 {book 0s} 4. e3 {book 0s} O-O {book
0s} 5. Bd3 {book 0s} c5 {book 0s} 6. Nge2 {book 0s} cxd4
{book 0s} 7. exd4 {book 0s} d5 {book 0s} 8. cxd5 {book 0s}
Nxd5 {book 0s} 9. O-O {book 0s} Nc6 {book 0s} 10. Nxd5
{book 0s} exd5 {-0.16/15 1:54m} 11. Nf4 {book 0s (a3)} Bd6
{book 0s} 12. Re1 {book 0s} Qf6 {0.00/13 34s} 13. Nxd5
{+0.51/15 28s} Qxd4 {-0.05/13 11s} 14. Be3 {+0.27/15 30s
(Nc3)} Qxb2 {-0.02/14 25s} 15. Qh5 {+0.42/14 21s (Rb1)} f5
{-0.78/14 2:48m (g6)} 16. Bc4 {+1.41/15 19s} Kh8 {-0.78/16
46s} 17. Rab1 {+1.69/15 26s} Qa3 {-0.70/15 22s}

{[d]r1b2r1k/pp4pp/2nb4/3N1p1Q/2B5/q3B3/P4PPP/1R2R1K1 w - -

Toga Checkov took its time finding a good continuation and after 1 minute 56 seconds comes with a strong move that leaves one of the Bishops hanging to a Queen attack but Black can't afford to take it! Nice move from Toga I think! Just five moves after leaving Shredder's book!}

18. Bd2 {!}{+2.34/15 1:56m (Bf4)} Qc5 {-0.15/13 29s (Na5)} 19. Rb3
{+4.52/15 18s (Qh4)} f4 {-4.80/14 1:46m} 20. Bd3 {+4.35/15
22s} Bf5 {-4.80/16 33s} 21. Bxf5 {+4.51/15 20s} Rxf5
{-4.95/16 17s} 22. Qxf5 {+4.37/16 22s} Nd4 {-4.95/15 16s}
23. Qf7 {+4.62/16 20s} Rf8 {-4.99/15 17s} 24. Qxb7
{+4.66/15 15s} Nxb3 {-5.49/15 1:14m} 25. axb3 {+4.68/16
20s} Qc2 {-5.49/15 8s} 26. Bc3 {+4.86/16 14s} 1-0

[d]5r1k/pQ4pp/3b4/3N4/5p2/1PB5/2q2PPP/4R1K1 b - -

Final position with Black's position crumbling..

Eelco

[Andrew]

In your last game, Hiarcs 11.2 comes up with 18 Bc1 in under a minute
on a 1.9 GHz single cpu with a score staying over 3 pawns ahead.

Andrew

[Eelco de Groot]

In your last game, Hiarcs 11.2 comes up with 18 Bc1 in under a minute
on a 1.9 GHz single cpu with a score staying over 3 pawns ahead.

Andrew

Hello Andrew!



Toga Checkov 1.4 Beta 1 taxiing on the runway now, will be faster

I really should stop now, worked on this one all through the night but at least it compiles

Eelco

[gerold]

20 nunn positions
ponder off
Athlon 2800+
128 mb ram each
time control: 2min plus 10 sec inc
result: 24-16 in favour of Toga 1.4 beta

72 point rating difference

Is Toga 1.4-5c-2cpu the same engine as Toga 3.1.2 se-mp.
5.5/11 1-1-9
5.5/11 1-1-9

[Eelco de Groot]

Well, there has been some delay in the match and the engine has changed significantly, because above was still playing Toga II 1.4 beta5c with modified Checkov settings, but then I managed to compile the sources and we are now at Toga 1.4 Checkov Beta 3. I won't say all the changes made are improvements because they are just experiments, some of them are probably not so good, but at the moment they also don't hurt performance very much.

Just a few games, they are not all that spectacular but I am just trying not to lose to bad to Shredder 11 which after all has a very high rating even with the SP version!

The first two games Toga managed to draw, with White especially Shredder had an advantage but just not enough. Shredder uses much time in the opening and sometimes is three or more minutes behind, it is not clear to me if Toga could benefit from also thinking a bit longer, sometimes just after leaving the opening book I think it could safely do that.

[Event "12 Minutes/Game + 6 Seconds/Move"]
[Site "Engine Match"]
[Date "2008.02.14"]
[Round "1"]
[White "Shredder 11 Default"]
[Black "Toga 1.4 Checkov Beta 3 bb5"]
[Result "1/2-1/2"]
[ECO "C12 - French/MacCutcheon Variation"]

1. e4 {book 0s} e6 {book 0s} 2. d4 {book 0s} d5 {book 0s}
3. Nc3 {book 0s} Nf6 {book 0s} 4. Bg5 {book 0s} Bb4 {book
0s} 5. e5 {book 0s} h6 {book 0s} 6. Bd2 {book 0s} Bxc3
{book 0s} 7. bxc3 {book 0s} Ne4 {book 0s} 8. Qg4 {book 0s}
g6 {book 0s} 9. Bd3 {book 0s} Nxd2 {book 0s} 10. Kxd2 {book
0s} c5 {book 0s} 11. h4 {book 0s} Nc6 {book 0s} 12. Qf4
{book 0s} Qa5 {book 0s} 13. Nf3 {book 0s} cxd4 {book 0s}
14. h5 {book 0s} g5 {+1.38/15 26s} 15. Qf6 {-1.08/15 1:22m}
Qxc3+ {+1.38/14 30s (Rg8)} 16. Ke2 {+0.19/14 44s} Rf8
{+0.59/15 24s (Rg8)} 17. g4 {+0.50/15 1:02m (Qxh6)} Bd7
{+0.41/13 17s} 18. Qxh6 {+0.75/14 28s} O-O-O {+0.19/13 19s}
19. Qf6 {+0.75/15 28s} Nb4 {+0.05/12 37s} 20. a3 {+1.16/14
20s (Qxg5)} Nxd3 {0.00/14 18s} 21. cxd3 {+1.03/16 10s} Kb8
{0.00/14 26s (Qc2+)} 22. Qxg5 {+0.82/15 1:59m} Rg8 {0.00/15
26s} 23. Qf4 {+0.91/16 53s} Qc2+ {-0.69/13 18s} 24. Qd2
{+1.37/16 19s} Qxd2+ {-1.02/15 23s} 25. Kxd2 {+1.54/18 10s}
Rxg4 {-0.96/16 21s} 26. Rag1 {+1.07/20 18s (h6)} Rxg1
{-0.93/19 23s} 27. Nxg1 {+1.02/22 20s} Rh8 {-0.78/20 21s}
28. h6 {+0.98/22 25s} Kc7 {-0.71/20 17s (Kc8)} 29. Ne2
{+0.98/21 19s (h7)} Kd8 {-0.88/19 21s} 30. Nxd4 {+0.96/20
21s} Ke7 {-0.86/19 21s (Rh7)} 31. h7 {+0.96/18 16s (f4)}
Kf8 {-0.77/17 15s} 32. Nf3 {+1.23/18 16s} Kg7 {-0.81/18
17s} 33. Ng5 {+1.17/18 23s} f6 {-0.81/18 21s} 34. exf6+
{+1.17/19 32s} Kxf6 {-0.86/16 4s} 35. f4 {+1.27/20 31s} d4
{-0.89/17 18s} 36. Ke2 {+1.13/16 11s (Ne4+)} a5 {-0.87/16
59s (Kg6)} 37. Ne4+ {+1.14/16 40s} Ke7 {-0.91/17 18s (Kf7)}
38. Rh6 {+1.14/17 10s (Rh5)} Kf8 {-0.72/17 13s (Kf7)}
39. Ng5 {+1.14/17 10s (Rh4)} Kg7 {-0.70/17 17s} 40. Rh2
{+1.06/17 19s (Rh4)} b5 {-0.70/16 17s} 41. Kf3 {+1.10/17
11s (Rh1)} Bc6+ {-0.68/15 17s (Kf6)} 42. Kg4 {+1.11/17 30s}
Bd7 {-1.22/15 16s} 43. Rc2 {+1.26/17 21s (Re2)} Rc8
{-0.64/14 16s} 44. Re2 {+1.26/16 7s (Ra2)} Kh8 {-0.99/15
20s (Rb8)} 45. Kf3 {+1.28/15 16s (Kh5)} Bc6+ {-0.60/16 12s}
46. Kg4 {+0.98/16 15s (Kg3)} Bd7 {0.00/20 12s (b4)} 47. Kg3
{+1.33/14 16s} b4 {-0.47/14 10s} 48. axb4 {+0.53/16 21s}
axb4 {-0.41/15 11s} 49. f5 {+0.44/17 19s} exf5 {-0.29/16
15s} 50. Re7 {+0.36/16 8s} f4+ {-0.09/16 34s (Be8)}
51. Kxf4 {+0.36/16 8s} Rf8+ {-0.13/18 13s (Be8)} 52. Nf7+
{+0.08/16 7s (Kg3)} Kxh7 {0.00/16 9s} 53. Kg5 {+0.12/16 5s
(Rxd7)} Rg8+ {0.00/15 8s (Bb5)} 54. Kf6 {+0.01/15 6s} Rg6+
{0.00/15 3s} 55. Ke5 {+0.01/10 0s} Bc8 {0.00/17 18s}
56. Ra7 {+0.10/14 6s (Nd6+)} b3 {0.00/15 13s} 57. Nd6+
{+0.21/14 8s} Rg7 {-0.07/16 8s} 58. Ra1 {+0.21/14 7s} Re7+
{-0.07/14 12s (Bg4)} 59. Kxd4 {+0.23/13 1s} Rd7 {-0.04/15
11s (Be6)} 60. Kc5 {+0.02/13 6s (Kd5)} Rc7+ {-0.04/15 11s}
61. Kb4 {+0.02/13 3s} Be6 {-0.03/15 8s} 62. Nc4 {+0.01/14
12s} Rb7+ {-0.04/16 11s (Bxc4)} 63. Kc3 {+0.01/15 3s} Kg6
{-0.02/16 8s (Bxc4)} 64. Rb1 {+0.01/15 5s} Bf5 {-0.02/16
11s (Bxc4)} 65. Rg1+ {0.00/13 4s (Nd6)} Kf6 {0.00/16 8s
(Kh7)} 66. Rf1 {+0.01/14 4s} Kg6 {0.00/16 11s (Rc7)}
67. Rxf5 {0.00/13 4s (Nd6)} b2 {+0.09/16 3s} 68. Rf1
{+0.01/17 6s} b1=Q {+0.10/19 10s} 69. Rxb1 {0.00/19 7s}
Rxb1 {+0.09/16 2s} 70. Kc2 {-0.01/19 3s (d4)} Rh1 {+0.14/19
8s (Rb8)} 71. Ne5+ {-0.01/21 12s (Kc3)} Kf5 {+0.17/22 8s}
72. Nc4 {-0.01/21 8s} Ke6 {+0.17/26 7s (Rh3)} 73. Kc3
{-0.01/21 8s} Rh4 {+0.17/27 8s (Rh3)} 74. Kb4 {-0.01/21 7s
(Ne3)} Kd5 {+0.17/20 7s} 75. Kc3 {-0.01/21 8s} Rf4
{+0.17/24 8s (Rxc4+)} 76. Ne3+ {-0.01/21 5s} Kc5 {+0.17/26
9s} 77. d4+ {-0.01/22 4s (Nc4)} Rxd4 {+0.25/22 10s} 78. Nf5
{-0.01/4 0s} Re4 {+0.25/25 7s (Kb5)} 79. Kd3 {-0.01/4 0s}
Kd5 {+0.25/27 7s (Kb5)} 80. Kd2 {-0.01/4 0s (Ne3+)} Rf4
{+0.27/20 7s (Kc5)} 81. Ng3 {-0.01/4 0s (Ne3+)} Rf3
{+0.27/26 8s (Kc5)} 82. Ne2 {-0.01/4 0s} Ke5 {+0.27/26 6s
(Kc5)} 83. Nc3 {-0.01/4 0s} Ke6 {+0.27/26 8s (Rxc3)}
84. Ne4 {-0.01/4 0s} Kd5 {+0.27/26 11s (Ra3)} 85. Nc3+
{-0.01/4 0s} Kd4 {+0.27/27 7s (Rxc3)} 86. Nb5+ {-0.01/4 0s
(Nd1)} Ke4 {+0.27/26 6s (Kc4)} 87. Nd6+ {-0.01/4 0s} Ke5
{+0.27/26 6s (Kd4)} 88. Nb5 {-0.01/4 0s} Rb3 {+0.27/23 9s
(Kd5)} 89. Nc3 {-0.01/4 0s} Kd4 {+0.27/29 7s (Rxc3)}
90. Ne2+ {-0.01/4 0s} Kd5 {+0.27/28 9s (Kc4)} 91. Kc2
{-0.01/4 0s (Nc3+)} Kc4 {+0.27/30 8s (Kc5)} 92. Nf4
{-0.01/4 0s} Ra3 {+0.27/30 11s (Kb4)} 93. Kd2 {-0.01/4 0s}
Kd4 {+0.27/21 9s (Kb4)} 94. Ke2 {-0.01/4 0s (Ne2+)} Ke4
{+0.33/21 7s (Kc4)} 95. Ng2 {-0.01/4 0s (Ne6)} Ra2+
{+0.34/21 5s} 96. Kf1 {-0.01/4 0s} Rb2 {+0.34/22 6s (Rxg2)}
97. Nh4 {-0.01/4 0s} Rd2 {+0.35/21 5s (Kd4)} 98. Ng2
{-0.01/4 0s} Kf3 {+0.35/26 9s (Rxg2)} 99. Nh4+ {-0.01/4 0s}
Kg4 {+0.34/25 48s (Ke3)} 100. Ng2 {-0.01/4 0s} Kg3
{+0.35/26 8s (Rd5)} 101. Ne1 {-0.01/4 0s} Rf2+ {+0.35/25 8s
(Kh4)} 102. Kg1 {-0.01/4 0s} Rf4 {+0.35/24 5s (Ra2)}
103. Nd3 {-0.01/4 0s (Ng2)} Rf8 {+0.35/23 6s (Kf3)}
104. Ne1 {-0.01/4 0s (Nc5)} Rf2 {+0.35/23 7s (Rb8)}
105. Nd3 {-0.01/4 0s} Rf5 {+0.35/24 7s (Kf3)} 106. Ne1
{-0.01/4 0s} Rf8 {+0.35/23 7s (Rb5)} 107. Nc2 {-0.01/4 0s
(Ng2)} Rc8 {+0.34/20 7s (Kf3)} 108. Ne1 {-0.01/4 0s} Rd8
{+0.34/20 6s (Rc1)} 109. Kf1 {-0.01/4 0s} Rd2 {+0.34/20 5s
(Rd1)} 110. Kg1 {-0.01/4 0s} Kf4 {+0.34/22 7s (Ra2)}
111. Kf1 {-0.01/4 0s} Ke3 {+0.34/24 7s (Ra2)} 112. Ng2+
{-0.01/4 0s} Ke4 {+0.34/24 7s (Rxg2)} 113. Nh4 {-0.01/4 0s}
Rb2 {+0.34/22 7s (Kd4)} 114. Ng2 {-0.01/4 0s} Ra2 {+0.34/22
7s (Rxg2)} 115. Nh4 {-0.01/4 0s} Kf4 {+0.34/21 7s (Kd4)}
116. Ng2+ {-0.01/4 0s (Ng6+)} Kg4 {+0.34/21 7s (Kg3)}
117. Ne3+ {-0.01/4 0s} Kf3 {+0.34/20 7s (Kf4)} 118. Nd1
{-0.01/4 0s} Re2 {+0.34/19 7s (Ra1)} 119. Nc3 {-0.01/4 0s}
Re6 {+0.34/17 7s (Ke3)} 120. Nd1 {-0.01/4 0s} Re4 {0.00/15
44s (Rc6)} 121. Nc3 {-0.01/4 0s} Re5 {0.00/14 7s (Ke3)}
122. Nd1 {-0.01/4 0s} Rc5 {0.00/16 6s} 123. Ke1 {-0.01/4
0s} Rc2 {0.00/24 6s (Rc1)} 124. Kf1 {-0.01/4 0s} Kf4
{0.00/26 3s (Ra2)} 125. Nf2 {-0.01/4 0s} Ke3 {0.00/30 4s
(Rxf2+)} 126. Nd1+ {-0.01/4 0s (Ng4+)} Kd4 {0.00/40 3s
(Kf3)} 127. Ke1 {0.00/4 0s (Nf2)} Ra2 {0.00/63 0s (Kd3)}
1/2-1/2

[d]8/8/8/8/3k4/8/r7/3NK3 w - -

{Draw by 50 moves rule}


[Event "12 Minutes/Game + 6 Seconds/Move"]
[Site "Engine Match"]
[Date "2008.02.14"]
[Round "2"]
[White "Toga 1.4 Checkov Beta 3 bb5"]
[Black "Shredder 11 Default"]
[Result "1/2-1/2"]
[ECO "C12 - French/MacCutcheon Variation"]

1. e4 {book 0s} e6 {book 0s} 2. d4 {book 0s} d5 {book 0s}
3. Nc3 {book 0s} Nf6 {book 0s} 4. Bg5 {book 0s} Bb4 {book
0s} 5. e5 {book 0s} h6 {book 0s} 6. Bd2 {book 0s} Bxc3
{book 0s} 7. bxc3 {book 0s} Ne4 {book 0s} 8. Qg4 {book 0s}
g6 {book 0s} 9. Bd3 {book 0s} Nxd2 {book 0s} 10. Kxd2 {book
0s} c5 {book 0s} 11. h4 {book 0s} Nc6 {book 0s} 12. Qf4
{book 0s} Qa5 {book 0s} 13. Nf3 {book 0s} cxd4 {book 0s}
14. h5 {book 0s} dxc3+ {+0.61/17 3:20m} 15. Ke2 {-0.82/16
32s} gxh5 {+0.55/16 27s (g5)} 16. Rxh5 {-0.15/13 30s} Bd7
{+0.50/15 1:59m (Rg8)} 17. Qf6 {0.00/15 35s} Rg8 {+0.46/15
12s (Rf8)} 18. Rxh6 {0.00/14 33s} Qc5 {0.00/15 38s (Qb4)}
19. Rb1 {+0.04/15 28s (Rh7)} b6 {-0.01/14 21s (Qe7)}
20. Kf1 {-0.02/14 30s (Rh8)} Qe7 {+0.34/13 11s} 21. Rh7
{-0.15/15 29s} Rf8 {+0.23/14 27s (Qxf6)} 22. Qf4 {+0.31/15
25s (Rb3)} O-O-O {+0.75/14 41s (Qa3)} 23. Ng5 {+0.05/14 25s
(a4)} Kb8 {+0.93/14 1:27m} 24. Nxf7 {-0.14/14 24s} Rc8
{+0.78/14 13s (Rde8)} 25. Qf6 {0.00/15 23s (g3)} Qa3
{+0.73/13 4s} 26. Qh4 {0.00/15 17s} Rc7 {+0.72/13 9s}
27. Qh6 {0.00/15 23s (Kg1)} Rg8 {+0.78/14 23s (Rcc8)}
28. Nd6 {-0.23/14 20s (Qh4)} Qxa2 {+0.87/15 19s} 29. Re1
{0.00/15 23s} Nb4 {+0.93/16 29s} 30. Rf7 {-0.07/14 18s}
Nxd3 {+0.92/16 19s} 31. Qh7 {-0.51/14 14s} Rd8 {+0.97/15
11s} 32. Qxd3 {-0.25/15 20s} Qb2 {+0.39/16 57s (Rh8)}
33. Qg6 {+0.22/13 20s (Kg1)} a5 {0.00/14 25s} 34. Kg1
{0.00/14 29s} d4 {0.00/15 10s (a4)} 35. Qg5 {+0.34/13 19s
(Rf4)} Rh8 {0.00/17 13s} 36. Qg7 {+0.19/14 14s} Rd8
{0.00/16 5s} 37. Qg6 {0.00/14 23s (Qg5)} a4 {0.00/15 10s
(Bc6)} 38. Qg5 {0.00/13 17s} Rh8 {0.00/17 10s} 39. Qg7
{0.00/15 19s} 1/2-1/2

[d]1k5r/2rb1RQ1/1p1Np3/4P3/p2p4/2p5/1qP2PP1/4R1K1 b - -

{Draw agreed after the game got in an unbalanced position, White with most forces on the Kinside but Black manged to castle away, Black dangerous on Queenside but the pawns did not advance very far on either side.}

{Game three was a good game by Shredder and an example of material imbalance, Toga had more pawns but they were vulnerable and divided in too many groups they fell one by one, so Shredder had an extra piece in the ending which was enough for a full point.}

[Event "12 Minutes/Game + 6 Seconds/Move"]
[Site "Engine Match"]
[Date "2008.02.14"]
[Round "1"]
[White "Shredder 11 Default"]
[Black "Toga 1.4 Checkov Beta 3 bb5"]
[Result "1-0"]
[ECO "E46 - Nimzo-Indian/Main line"]

1. d4 {book 0s} Nf6 {book 0s} 2. c4 {book 0s} e6 {book 0s}
3. Nc3 {book 0s} Bb4 {book 0s} 4. e3 {book 0s} O-O {book
0s} 5. Nge2 {book 0s} d5 {book 0s} 6. a3 {book 0s} Be7
{book 0s} 7. cxd5 {book 0s} exd5 {book 0s} 8. g3 {book 0s}
c6 {book 0s} 9. Bg2 {book 0s} Na6 {book 0s} 10. O-O {book
0s} Nc7 {book 0s} 11. f3 {book 0s} c5 {-0.13/14 24s}
12. dxc5 {book 0s (Kh1)} Bxc5 {+0.06/14 20s} 13. b4 {book
0s} Bd6 {+0.01/15 22s} 14. Qd3 {+0.21/14 27s (Nd4)} Bd7
{+0.06/13 32s (Re8)} 15. Rd1 {+0.32/14 44s (e4)} a5
{+0.15/13 26s (Re8)} 16. b5 {+0.25/15 1:09m} Re8 {+0.10/13
24s (Rc8)} 17. g4 {+0.25/14 1:30m (Rb1)} Bxg4 {+0.46/12 29s
(h6)} 18. fxg4 {+1.13/16 1:02m} Nxg4 {-0.55/13 23s} 19. h3
{+1.13/16 25s} Bh2+ {-0.76/14 23s} 20. Kf1 {+0.93/16 1:03m}
Qf6+ {-0.85/15 25s} 21. Nf4 {+0.93/16 20s} Nxe3+ {-0.32/14
18s} 22. Bxe3 {+0.93/16 45s} Bxf4 {-0.32/15 24s} 23. Bxf4
{+0.89/16 47s} Qxf4+ {-0.66/15 19s} 24. Kg1 {+0.89/17 39s}
d4 {-0.66/15 23s} 25. Ne2 {+1.15/13 5s (Rf1)} Qe5 {-0.31/14
15s} 26. Nxd4 {+0.98/14 22s (b6)} Rad8 {-0.73/14 36s}
27. Kh1 {+0.98/14 36s (Qc4)} Ne6 {-0.54/14 20s} 28. Nf3
{+1.26/14 23s} Qc5 {-0.66/14 20s} 29. Qb3 {+1.26/14 16s} h6
{-0.82/12 23s (b6)} 30. a4 {+1.40/12 20s (Rac1)} b6
{-0.75/13 28s (Rxd1+)} 31. Rxd8 {+1.42/15 20s} Rxd8
{-0.74/14 19s} 32. Re1 {+1.54/15 22s (Rd1)} Qf2 {-1.07/14
1:04m} 33. Qe3 {+1.33/16 36s (Qc4)} Qxe3 {-0.66/16 16s}
34. Rxe3 {+1.00/15 1s} Nc5 {-0.79/15 11s} 35. Bf1 {+1.10/16
37s (Ne5)} Nxa4 {-0.72/15 15s (g6)} 36. Bc4 {+1.22/16 13s}
Nb2 {-0.98/15 20s} 37. Ba2 {+1.30/16 22s} Kf8 {-0.97/14
10s} 38. Ne5 {+1.44/16 11s} a4 {-1.13/14 30s (Rd1+)}
39. Kg2 {+1.63/14 12s} Nd1 {-1.14/15 14s} 40. Ra3 {+1.67/14
5s} Nb2 {-1.11/14 14s (Rd2+)} 41. Bxf7 {+1.67/15 20s} Rd2+
{-1.34/14 14s} 42. Kf3 {+1.77/16 11s} Ke7 {-1.47/15 16s}
43. Ke3 {+1.94/16 12s} Rc2 {-1.33/16 13s} 44. Kd4 {+1.94/16
24s} Rc5 {-1.60/15 13s} 45. Ba2 {+2.40/16 19s} Rxb5
{-1.33/14 13s} 46. Rg3 {+2.84/16 11s} g5 {-1.13/14 12s
(Rb4+)} 47. Rf3 {+3.04/13 5s (Nf7)} Rc5 {-1.92/13 12s}
48. Rf7+ {+3.10/14 7s} Kd8 {-2.78/12 9s} 49. Rb7 {+3.42/14
7s} Kc8 {-2.71/14 12s} 50. Rxb6 {+3.18/14 6s} Rc2 {-2.86/14
12s} 51. Rxh6 {+3.18/13 4s} Rd2+ {-2.98/13 11s (a3)}
52. Ke4 {+3.49/14 17s (Ke3)} Re2+ {-3.00/12 17s (a3)}
53. Kf5 {+4.41/13 6s} Nd1 {-2.87/12 10s} 54. Bc4 {+4.41/13
4s} Rc2 {-3.13/12 10s (Ne3+)} 55. Kxg5 {+4.74/11 5s} a3
{-3.25/12 18s (Ne3)} 56. Ra6 {+4.92/11 3s} Rc3 {-3.29/14
10s} 57. h4 {+4.91/11 3s (Be6+)} Kb7 {-3.33/14 8s} 58. Ra5
{+5.21/12 4s (Ra4)} Nb2 {-3.72/14 11s (Kb6)} 59. h5
{+5.89/13 8s (Be6)} Nxc4 {-1.63/16 8s (Rg3+)} 60. Nxc4
{+6.67/12 3s} Rxc4 {-1.91/17 8s (Rg3+)} 61. Rxa3 {+M37/19
8s} Rc5+ {-1.91/19 10s} 62. Kg6 {+M36/4 0s} Rc6+ {-2.02/16
10s} 63. Kf7 {+M35/4 0s} Rc7+ {-2.01/16 6s} 64. Ke6 {+M34/4
0s} Rc6+ {-2.02/18 7s} 65. Kd5 {+M33/4 0s} Rh6 {-2.15/18
12s} 66. Rh3 {+M32/4 0s} Kc7 {-2.18/19 9s (Kc8)} 67. Ke5
{+M31/4 0s} Kd7 {-2.14/21 9s (Kd8)} 68. Kf5 {+M30/4 0s} Ke7
{-2.39/17 14s (Ke8)} 69. Kg5 {+M29/4 0s} Rh8 {-2.48/18 9s}
70. h6 {+M28/4 0s} Rg8+ {-4.53/19 9s (Kf7)} 71. Kh5 {+M26/4
0s} Rh8 {-4.53/19 8s} 72. Rc3 {+M25/4 0s (Rb3)} Rd8
{-4.73/16 9s (Kf7)} 73. Rc7+ {+M24/4 0s} Kf6 {-4.73/15 8s
(Kf8)} 74. h7 {+M23/4 0s} Re8 {-5.17/16 7s (Rb8)} 75. Kh6
{+M22/4 0s} Rb8 {-5.47/16 7s} 76. Rc5 {+M21/4 0s (Rc2)} 1-0

[d]1r6/7P/5k1K/2R5/8/8/8/8 b - -

{I now see why Toga was not seeing the matescores in this ending, I forgot the last slash in the bitbase path again so in fact Toga is playing without them, if we can go by the CCRL then 5 men bitbases do bring better performance for Toga II 1.4 beta 5c. Shedder is using tablebases and Shredderbases, the GUI is using neither at the moment}

{I did not have much hope for the return game but Toga got a revanche with a fine win against Shredder, and I think it must have been using some of its King attack code! }

[Event "12 Minutes/Game + 6 Seconds/Move"]
[Site "Engine Match"]
[Date "2008.02.15"]
[Round "2"]
[White "Toga 1.4 Checkov Beta 3 bb5"]
[Black "Shredder 11 Default"]
[Result "1-0"]
[ECO "E46 - Nimzo-Indian/Main line"]

1. d4 {book 0s} Nf6 {book 0s} 2. c4 {book 0s} e6 {book 0s}
3. Nc3 {book 0s} Bb4 {book 0s} 4. e3 {book 0s} O-O {book
0s} 5. Nge2 {book 0s} d5 {book 0s} 6. a3 {book 0s} Be7
{book 0s} 7. cxd5 {book 0s} exd5 {book 0s} 8. g3 {book 0s}
c6 {book 0s} 9. Bg2 {book 0s} Na6 {book 0s} 10. O-O {book
0s} Nc7 {book 0s} 11. f3 {book 0s} h5 {+0.24/14 37s} 12. e4
{+0.48/15 31s (Qc2)} Qd7 {+0.02/14 1:05m (Nd7)} 13. Kh1
{+0.56/14 29s (e5)} b6 {+0.04/14 37s (Nfe8)} 14. e5
{+0.87/15 18s} Nh7 {-0.19/13 5s} 15. Nf4 {+0.98/15 21s
(h4)} h4 {-0.09/15 48s (Ba6)} 16. gxh4 {+1.01/14 19s (Bh3)}
Bxh4 {+0.19/12 4s} 17. Rg1 {+1.06/15 28s} Qe7 {-0.03/14 36s
(Qd8)} 18. Bf1 {+1.25/14 27s (Qc2)} Rd8 {-0.02/13 36s
(Bb7)} 19. Be3 {+1.32/13 23s (Nh5)} c5 {-0.14/13 41s}
20. Nb5 {+1.13/13 18s} Nxb5 {-0.11/14 50s (Bg5)} 21. Bxb5
{+1.10/11 13s} Rb8 {-0.41/13 55s} 22. Bd3 {+1.20/12 26s
(Qd2)} Rb7 {-0.30/11 35s (Nf8)} 23. Qd2 {+1.72/12 15s
(Nh5)} Nf8 {-0.44/13 58s (c4)} 24. Nh5 {+1.77/13 20s} g6
{-2.12/14 3:35m} 25. Bf2 {+2.08/13 14s (Bh6)} Kh7 {-1.12/13
17s} 26. Qe1 {+2.28/14 17s (f4)} Bxf2 {-1.32/12 16s}
27. Qxf2 {+2.28/13 8s} Nd7 {-1.79/14 34s}

{[d]2br4/pr1nqp1k/1p4p1/2ppP2N/3P4/P2B1P2/1P3Q1P/R5RK w - -

Toga has a huge advantage on the clock, about 9 vs. 2 minutes and now takes its time, 2 minutes, to find a strong attacking move}

28. Qg3 {!}{+3.31/14 2:02m (Rae1)} Nf8 {-1.79/8 9s} 29. Nf6+ {+3.31/14 19s} Kg7 {-3.47/12 19s} 30. f4 {+4.32/14 19s} cxd4 {-3.70/13 19s (c4)} 31. f5 {+4.75/13 18s} Bxf5 {-3.70/13 5s} 32. Bxf5
{+4.67/13 18s} b5 {-4.17/13 17s (a5)}

{[d]3r1n2/pr2qpk1/5Np1/1p1pPB2/3p4/P5Q1/1P5P/R5RK w - -

Another two minutes and twenty seconds for the following move:}
33. h4 {!}{+5.22/13 2:20m (Rae1)} Rb6 {-4.93/11 7s} 34. h5 {+5.42/13 8s} Rxf6 {-5.27/12 11s} 35. exf6+ {+5.43/13 10s} Qxf6 {-5.27/14 4s}
36. Raf1 {+5.43/14 13s} 1-0

[d]3r1n2/p4pk1/5qp1/1p1p1B1P/3p4/P5Q1/1P6/5RRK b - -

{A pity that the GUI stopped this so soon, I wish I could set the resign value a bit higher, just for esthetic reasons here }

Toga managed not to get beaten too easily in these first games. Actually I have two versions of Beta three of which the one that played these games is the most experimental, but the other one has not played any games yet.

Some slight changes in the material values too of which the slightly increased Bishop pair in the endgame I confess was inspired by Toga 3.1.2SE from Chris Formula, I hope he doesn't mind that. I'm trying a value of 60 for the Bishop pair and decreasing the base value by just 5 just to see how that goes. And I also activated the EndgameExchangePenalty from Thomas again as different from the OpeningExchangePenalty.

Eelco

[Eelco de Groot]

Some more games, the match is slowly fleshing out. I will not add many comments, I have not analyzed the games that much. The last two games were played with the new compile by Denis Mendoza which is 30% faster. Thanks Denis! As reported in the General Forum I think Toga Exchange Bonus (it is really a penalty) should be set to 40 to get the system in tune again. But of course I have seen not many games with it, if the 40 value or the other settings may need some more changes.

[Event "12 Minutes/Game + 6 Seconds/Move"]
[Site "Engine Match"]
[Date "2008.02.15"]
[Round "1"]
[White "Shredder 11 Default"]
[Black "Toga 1.4 Checkov Beta 3 bb5"]
[Result "1-0"]
[ECO "B54 - Sicilian Defence"]

1. e4 {book 0s} c5 {book 0s} 2. Nf3 {book 0s} d6 {book 0s}
3. d4 {book 0s} cxd4 {book 0s} 4. Nxd4 {book 0s} Nf6 {book
0s} 5. f3 {book 0s} e5 {book 0s} 6. Nb3 {book 0s} Be6 {book
0s} 7. c4 {book 0s} Nbd7 {book 0s} 8. Be3 {book 0s} Rc8
{book 0s} 9. Nc3 {book 0s} Be7 {book 0s} 10. Nb5 {book 0s}
O-O {book 0s} 11. Nxa7 {book 0s} Rxc4 {book 0s} 12. Bxc4
{book 0s} Bxc4 {book 0s} 13. Rc1 {book 0s} d5 {book 0s}
14. Qd2 {book 0s} Qa8 {book 0s} 15. exd5 {book 0s} Bxd5
{book 0s} 16. Rc2 {book 0s} e4 {0.00/14 47s} 17. f4
{+0.64/13 32s} b6 {-0.30/14 24s} 18. Nb5 {+0.67/14 13s}
Qxa2 {-0.27/14 29s} 19. N3d4 {+0.67/15 34s} Qb1+ {-0.49/15
46s (Qa4)} 20. Qd1 {+1.04/14 40s} Qxd1+ {-0.49/15 27s}
21. Kxd1 {+1.04/16 11s} Ra8 {-0.25/16 26s (Ng4)} 22. Ke2
{+1.25/14 31s} Bf8 {-0.38/15 29s (Bb7)} 23. Nc7 {+0.97/15
37s} Ra2 {-0.52/16 26s} 24. Nxd5 {+1.08/13 6s} Nxd5
{-0.54/15 12s} 25. Nb3 {+0.74/16 1:19m (Nb5)} f5 {-0.52/15
21s (Nc5)} 26. Rd1 {+0.94/17 29s (g3)} N7f6 {-0.68/15 15s
(Nb4)} 27. g3 {+1.07/15 19s} Nxe3 {-0.72/15 14s} 28. Kxe3
{+0.92/16 25s} Kf7 {-0.70/15 24s} 29. Ke2 {+0.92/15 45s}
Bb4 {-0.66/16 23s (Kg6)} 30. Rd4 {+1.18/15 34s (Ra1)} Be7
{-0.83/15 15s} 31. Rdc4 {+1.24/16 1:06m (Rdd2)} g6
{-0.70/15 16s (Nd5)} 32. Rc6 {+1.49/15 21s (Rc7)} b5
{-0.87/15 29s (Nd5)} 33. Rc7 {+2.01/14 30s (Rd2)} Ne8
{-1.02/15 25s} 34. Rd7 {+2.32/15 14s} Nf6 {-1.31/15 23s
(Ke6)} 35. Rb7 {+2.67/15 34s} Ra4 {-1.31/14 19s (Ne8)}
36. Rcc7 {+2.95/16 34s (Rxb5)} Nd5 {-1.76/17 19s} 37. Rc5
{+3.14/16 12s (Rd7)} Nf6 {-1.95/16 19s} 38. Rcxb5 {+3.12/17
17s} Rc4 {-2.05/16 14s} 39. Re5 {+3.12/17 32s} Ng8
{-2.27/16 14s} 40. Nd2 {+3.29/17 30s} Rc2 {-2.35/16 13s
(Rc1)} 41. g4 {+3.59/16 12s} fxg4 {-2.35/15 17s} 42. Kd1
{+3.69/16 8s} Rc6 {-2.55/16 17s (Rc8)} 43. Nxe4 {+3.82/15
10s} h6 {-3.01/16 17s} 44. Kd2 {+3.81/15 15s (b4)} Kf8
{-2.36/14 17s} 45. Kd3 {+3.81/14 11s (b4)} Bf6 {-2.88/14
21s (Rc8)} 46. Ra5 {+4.25/14 11s} Ne7 {-2.97/15 14s} 47. b4
{+4.12/14 14s} Bh4 {-2.95/15 10s} 48. b5 {+4.34/14 45s} Rc8
{-2.95/15 15s} 49. Raa7 {+4.55/14 11s} Rd8+ {-3.08/15 15s}
50. Rd7 {+4.55/15 11s} Rb8 {-3.28/14 9s (Nd5)} 51. Nd6
{+5.00/15 52s} Bf6 {-3.82/16 17s (Nf5)} 52. Kc4 {+5.38/16
13s (Ke4)} Bh4 {-3.64/15 12s} 53. Rac7 {+5.35/16 10s (Kc3)}
h5 {-4.35/15 14s} 54. Ne4 {+5.35/16 10s (Kd3)} Kg8
{-4.99/14 13s (Nf5)} 55. Kc5 {+6.62/14 12s (Rxe7)} Nc8
{-6.62/15 26s (Kf7)} 56. Rb7 {+8.68/15 10s (Ng5)} Rxb7
{-7.31/13 13s} 57. Rxb7 {+9.48/16 10s} 1-0

[d]2n3k1/1R6/6p1/1PK4p/4NPpb/8/7P/8 b - -
{Shredder wins}


[Event "12 Minutes/Game + 6 Seconds/Move"]
[Site "Engine Match"]
[Date "2008.02.15"]
[Round "2"]
[White "Toga 1.4 Checkov Beta 3 bb5"]
[Black "Shredder 11 Default"]
[Result "1-0"]
[ECO "B54 - Sicilian Defence"]

1. e4 {book 0s} c5 {book 0s} 2. Nf3 {book 0s} d6 {book 0s}
3. d4 {book 0s} cxd4 {book 0s} 4. Nxd4 {book 0s} Nf6 {book
0s} 5. f3 {book 0s} e5 {book 0s} 6. Nb3 {book 0s} Be6 {book
0s} 7. c4 {book 0s} Nbd7 {book 0s} 8. Be3 {book 0s} Rc8
{book 0s} 9. Nc3 {book 0s} Be7 {book 0s} 10. Nb5 {book 0s}
O-O {book 0s} 11. Nxa7 {book 0s} Rxc4 {book 0s} 12. Bxc4
{book 0s} Bxc4 {book 0s} 13. Rc1 {book 0s} d5 {book 0s}
14. Qd2 {book 0s} Qa8 {book 0s} 15. exd5 {book 0s} Bxd5
{book 0s} 16. Rc2 {book 0s} b6 {-0.36/15 32s} 17. Nb5
{+0.36/15 31s} Qxa2 {-0.41/16 48s (Bb7)} 18. Nc1 {0.00/16
29s} Qa4 {-0.41/17 1:06m} 19. Nc3 {+0.29/16 26s} Qa8
{-0.39/16 31s} 20. O-O {+0.28/15 27s} Be6 {-0.39/15 30s}
21. Qe2 {+0.37/14 19s} Rc8 {-0.39/15 58s (h5)} 22. Rd1
{+0.20/14 45s} Qb8 {-0.39/13 23s (Bc4)} 23. Rcd2 {+0.22/14
57s (Bf2)} e4 {-0.14/13 36s (h5)} 24. Bd4 {+0.06/13 16s
(Kh1)} exf3 {-0.14/13 21s} 25. gxf3 {0.00/13 21s} Bf8
{-0.14/13 21s (Qf4)} 26. Nd3 {+0.40/13 20s (Kh1)} Re8
{-0.34/12 29s (g6)} 27. Qf2 {+0.47/13 22s (Re1)} Qb7
{-0.37/12 25s (Qa8)} 28. Qg2 {+0.40/13 24s (Re1)} Qc6
{-0.37/12 33s (Bc4)} 29. Kh1 {+0.53/13 26s (Re2)} Bf5
{-0.49/12 21s} 30. Nf4 {+0.57/13 22s} h6 {-0.56/12 20s
(Nc5)} 31. Re2 {+0.74/13 23s} Rxe2 {-0.55/14 42s} 32. Nfxe2
{+0.69/13 14s} Qc4 {-0.55/14 20s (Nd5)} 33. Ra1 {+0.71/12
26s (Ng3)} Bg6 {-0.49/13 21s (Nh5)} 34. Be3 {+0.70/13 20s
(Ra4)} Bb4 {-0.35/13 22s (Nc5)} 35. Rd1 {+0.80/13 16s} Kh7
{-0.46/14 23s (Qb3)} 36. Bd4 {+0.75/13 13s} Qc7 {-0.41/14
28s (Qb3)} 37. Rc1 {+0.81/14 25s} Qb8 {-0.36/15 32s (Bc5)}
38. Rf1 {+0.91/14 18s (Rg1)} Qc7 {-0.37/13 14s (Qd6)}
39. Rd1 {+0.82/14 51s (Rg1)} Bf8 {-0.43/14 19s (Kg8)}
40. Ra1 {+0.87/13 19s (Be3)} Bb4 {-0.41/14 28s (Bc5)}
41. Ra4 {+0.73/13 25s (Rg1)} Be7 {-0.16/12 11s (Bc5)}
42. Bf2 {+0.71/13 43s (b4)} Nc5 {-0.07/14 19s (Bd3)}
43. Ra2 {+0.39/14 23s (Rc4)} Nd3 {+0.22/12 5s (Ne6)}
44. Bd4 {+0.23/13 12s} Qc6 {+0.45/13 13s (Qd7)} 45. f4
{+0.27/13 14s} Qe6 {+0.41/13 9s (Qc4)} 46. Ra1 {0.00/12 11s
(Ra6)} Nxb2 {+0.75/11 3s (Bc5)} 47. Ng3 {+0.52/13 14s
(Ra7)} Nc4 {+0.20/13 20s} 48. Qe2 {+0.38/12 15s (Ra7)} Qc6+
{-0.04/12 15s (Qxe2)} 49. Kg1 {+0.20/14 11s} Bb4 {+0.03/14
24s} 50. f5 {+0.01/14 12s} Bh5 {+0.03/15 11s} 51. Nxh5
{+0.05/14 12s} Nxh5 {+0.03/16 22s} 52. Qe4 {0.00/14 13s}
Qd7 {+0.03/14 21s} 53. Qd5 {-0.06/14 20s} Nd6 {+0.27/14
11s} 54. Rf1 {0.00/14 13s} Qe7 {+0.20/14 13s (Qc7)} 55. Kh1
{0.00/14 11s} Qh4 {+0.40/14 17s (Bxc3)} 56. Rg1 {0.00/13
6s} Qf4 {+0.37/15 12s (Qh3)} 57. Be5 {-0.07/14 11s (Ne2)}
Qxf5 {+0.24/15 18s (Qe3)} 58. Bxd6 {-0.10/15 8s} Qxd5+
{+0.20/17 4s} 59. Nxd5 {-0.18/16 3s} Bxd6 {+0.51/16 2s}
60. Rf1 {-0.17/17 11s (Rb1)} Kg6 {+0.58/16 7s (f6)}
61. Nxb6 {-0.06/14 10s} f6 {+0.51/16 13s (f5)} 62. Nc4
{-0.04/16 10s (Rd1)} Bc7 {+0.48/15 6s} 63. Re1 {-0.07/15
10s} Kf7 {+0.43/15 3s} 64. Ra1 {-0.09/15 6s} Ke6 {+0.46/15
4s} 65. Kg2 {-0.05/14 11s (Ra7)} Kf5 {+0.43/13 4s (Kd5)}
66. Kf3 {0.00/14 8s (Ra7)} Nf4 {+0.17/16 15s (g5)} 67. Ne3+
{+0.08/14 10s} Kg6 {+0.20/15 5s (Ke5)} 68. Rg1+ {+0.09/14
10s} Kf7 {+0.20/16 4s (Kh7)} 69. Rb1 {+0.04/15 10s (Nf5)}
Ne6 {+0.45/14 6s} 70. Rb7 {+0.03/15 8s} Kg6 {+0.46/14 1s}
71. h3 {+0.03/15 5s} Kh5 {+0.58/14 2s (Kg5)} 72. Nd5
{0.00/15 9s (Nf5)} Be5 {+0.45/18 8s} 73. Ra7 {0.00/15 16s
(Kg2)} Kh4 {+0.40/16 5s (Nd4+)} 74. Re7 {0.00/16 8s} Nd4+
{+0.22/16 8s (Ng5+)} 75. Ke4 {0.00/15 5s} Nc6 {+0.28/17 5s
(g5)} 76. Rf7 {+0.03/16 8s (Re6)} Kxh3 {+0.27/15 4s}
77. Kf5 {+0.01/16 9s} g5 {+0.25/16 6s (Nd4+)} 78. Rh7
{0.00/15 5s (Nxf6)} Nd4+ {+0.08/15 5s} 79. Ke4 {0.00/17 6s}
Kg2 {+0.04/16 6s (g4)} 80. Ne3+ {+0.01/16 7s (Rxh6)} Kg3
{+0.01/18 4s} 81. Rxh6 {0.00/16 7s (Nc4)} Nb5 {+0.15/15 6s
(Nf3)} 82. Rh1 {0.00/17 10s (Nc4)} Nd6+ {+0.36/15 4s}
83. Kd3 {0.00/18 6s} Bf4 {+0.11/17 12s (Kf3)} 84. Rg1+
{0.00/17 8s (Nd5)} Kh2 {+0.39/16 3s} 85. Ra1 {0.00/18 9s
(Rg2+)} f5 {+0.46/16 3s (Kh3)} 86. Nd5 {0.00/17 7s} Bg3
{+0.44/17 8s (Kg3)} 87. Ra5 {0.00/16 5s (Ne3)} f4 {+0.29/17
11s (g4)} 88. Nf6 {0.00/15 5s (Ne3)} Bh4 {+0.10/16 7s (f3)}
89. Rd5 {+0.04/16 6s} Nc8 {+0.01/17 5s (Nb7)} 90. Ke4
{+0.08/16 7s} Kg3 {+0.01/16 3s (Kg2)} 91. Rd3+ {+0.07/16 7s
(Nh5+)} Kf2 {+0.01/15 1s (Kg2)} 92. Ng4+ {+0.11/15 8s
(Nh5)} Ke2 {0.00/15 3s} 93. Ne5 {+0.14/15 8s} Be1 {0.00/17
14s} 94. Nf3 {+0.10/15 8s} Ba5 {-0.27/15 13s (Nb6)} 95. Rd5
{+0.25/13 7s (Nxg5)} Bb4 {-0.06/15 6s (Bc3)} 96. Rxg5
{+0.24/14 5s (Nd4+)} Nd6+ {-0.02/15 3s} 97. Kxf4 {+0.24/15
1s} Nc4 {-0.02/15 2s (Kd3)} 98. Ng1+ {+0.26/14 6s (Re5+)}
Ke1 {-0.01/13 4s (Kd3)} 99. Ke4 {+0.30/13 6s} Ba5 {-0.04/14
6s (Be7)} 100. Kd4 {+0.32/15 9s (Nf3+)} Nd2 {-0.09/16 3s}
101. Kd3 {+0.35/16 6s} Bd8 {-0.08/16 4s (Bb6)} 102. Rf5
{+0.34/16 5s} Bb6 {-0.09/16 3s} 103. Nh3 {+0.34/16 7s} Nb3
{-0.09/15 2s} 104. Rb5 {+0.36/16 6s} Nc5+ {-0.08/14 3s}
105. Kc4 {+0.36/17 8s} Nd7 {-0.08/15 7s} 106. Rd5 {+0.39/16
6s (Kd5)} Nb8 {-0.09/15 10s} 107. Re5+ {+0.36/15 10s (Rd6)}
Kf1 {-0.08/14 3s} 108. Re7 {+0.36/15 15s (Nf4)} Kg2
{-0.09/13 2s (Bd8)} 109. Nf4+ {+0.36/15 7s} Kf3 {-0.10/14
11s} 110. Nd5 {+0.38/15 11s} Bf2 {-0.10/14 5s (Bg1)}
111. Rf7+ {+0.38/14 7s} Kg3 {-0.10/15 4s} 112. Nb4
{+0.38/15 9s (Nf4)} Kg2 {-0.19/16 4s} 113. Nd3 {+0.40/16
4s} Bg1 {-4.60/16 23s (Bg3)} 114. Kd5 {+5.11/16 7s (Nf4+)}
Na6 {-6.17/16 11s} 115. Rf6 {+5.01/15 4s (Kc6)} Nc7+
{-6.17/16 3s} 116. Kc6 {+45.04/18 7s} 1-0

[d]8/2n5/2K2R2/8/8/3N4/6k1/6b1 b - -

{The Scorpio bitbases recognize a win for Toga, score goes to +45. I think the GUI stops it a bit too fast with these high scores}


[Event "12 Minutes/Game + 6 Seconds/Move"]
[Site "Engine Match"]
[Date "2008.02.15"]
[Round "1"]
[White "Shredder 11 Default"]
[Black "Toga 1.4 Checkov Beta 3 bb5"]
[Result "0-1"]
[ECO "E54 - Nimzo-Indian/Main line"]

1. d4 {book 0s} Nf6 {book 0s} 2. c4 {book 0s} e6 {book 0s}
3. Nc3 {book 0s} Bb4 {book 0s} 4. e3 {book 0s} O-O {book
0s} 5. Bd3 {book 0s} d5 {book 0s} 6. Nf3 {book 0s} c5 {book
0s} 7. O-O {book 0s} cxd4 {book 0s} 8. exd4 {+0.26/13 5s}
dxc4 {book 0s} 9. Bxc4 {book 0s} a6 {book 0s} 10. a4 {book
0s} Nc6 {book 0s} 11. Bg5 {book 0s} h6 {book 0s} 12. Be3
{book 0s} Qc7 {-0.05/13 20s} 13. Rc1 {-0.02/13 37s} Rd8
{-0.04/14 30s} 14. Qb3 {-0.10/14 1:24m (Bd3)} Qe7 {-0.01/13
18s} 15. Bd3 {-0.01/14 56s (Qa2)} e5 {-0.17/14 30s}
16. Nxe5 {-0.02/15 34s} Nxd4 {+0.26/15 33s} 17. Bxd4
{-0.02/16 56s} Rxd4 {+0.04/15 21s} 18. Rfe1 {-0.32/14 19s}
Be6 {+0.33/16 27s} 19. Bc4 {-0.17/14 21s} Re8 {+0.18/15
21s} 20. Bxe6 {-0.21/15 51s (Re3)} Qxe6 {+0.28/15 26s}
21. Qc2 {-0.37/16 47s} Rdd8 {+0.24/15 20s (Bxc3)} 22. Nd3
{-0.18/14 16s} Qd6 {+0.21/15 15s} 23. Rxe8+ {-0.11/15 38s
(Nxb4)} Rxe8 {+0.28/15 17s} 24. Nxb4 {-0.21/16 35s} Qxb4
{+0.20/15 13s} 25. h3 {-0.21/16 39s (Rd1)} Qc4 {+0.21/16
23s (Rd8)} 26. Qd1 {-0.04/14 28s (Rd1)} h5 {+0.13/14 14s
(Qf4)} 27. Qc2 {-0.09/14 21s (Rc2)} Qf4 {+0.22/15 33s
(Nd5)} 28. Rd1 {0.00/15 14s} Qh4 {+0.14/15 22s (h4)} 29. f3
{0.00/15 13s (Qb3)} Re1+ {+0.15/14 22s (Qg3)} 30. Kh2
{-0.02/16 15s} Rxd1 {+0.09/15 15s} 31. Qxd1 {-0.02/15 9s}
Qf4+ {+0.09/16 20s (Qb4)} 32. g3 {-0.03/16 11s (Kh1)} Qb4
{+0.18/15 20s} 33. Qd8+ {-0.04/16 16s} Kh7 {+0.17/16 14s}
34. Qd2 {-0.04/17 31s} h4 {+0.25/16 22s} 35. g4 {-0.03/16
17s} g6 {+0.21/16 19s} 36. Kg2 {-0.05/15 15s (Kg1)} Kg7
{+0.15/14 14s} 37. Kf1 {-0.05/15 27s (Kg1)} b5 {+0.23/15
18s (Nh7)} 38. axb5 {-0.23/14 28s} axb5 {+0.22/15 18s}
39. Ke2 {-0.24/15 21s (Kf2)} Qc4+ {+0.44/14 12s (Qe7+)}
40. Qd3 {-0.03/15 19s (Kf2)} Qe6+ {+0.21/14 17s} 41. Ne4
{-0.02/16 14s} Nxe4 {+0.20/15 1:45m (Kh7)} 42. fxe4
{-0.03/15 19s} Qb6 {+0.17/16 26s} 43. Qc3+ {-0.03/15 20s}
Kh7 {+0.17/16 13s (Kg8)} 44. e5 {-0.10/15 14s (b4)} Qg1
{+0.31/13 12s} 45. Kd3 {-0.13/14 16s (b4)} Qd1+ {+0.38/13
12s (b4)} 46. Ke4 {0.00/12 2s} Qe2+ {+0.30/12 9s (Qf1)}
47. Kd5 {0.00/15 9s} b4 {+0.32/13 12s} 48. Qb3 {0.00/15
18s} Kg7 {+0.29/13 13s (Qb5+)} 49. Kd6 {0.00/14 9s} Qd2+
{+0.28/13 12s (Qa6+)} 50. Kc5 {0.00/13 2s} Qf2+ {+0.30/13
11s (Qe1)} 51. Kb5 {0.00/14 14s (Kxb4)} Qe1 {+0.15/11 10s}
52. Qxb4 {0.00/14 9s (e6)} Qxe5+ {+0.73/12 23s} 53. Ka4
{-0.13/12 4s (Kc6)} Qe3 {+1.35/13 10s (g5)} 54. Qa3
{-0.89/12 15s (Qc3+)} Qxa3+ {+8.63/13 7s (Qd4+)} 55. Kxa3
{-9.36/19 16s (bxa3)} f5 {+9.35/15 10s} 56. gxf5 {-9.62/20
8s} g5 {+9.35/13 10s} 0-1

[d]8/6k1/8/5Pp1/7p/K6P/1P6/8 w - -

{This was a miraculous win in the endgame by Toga, both programs thought it should be a draw but then I think Shredder in timetrouble made a fatal mistake. I have not analyzed it closely. Toga is leading now by one game!}


[Event "12 Minutes/Game + 6 Seconds/Move"]
[Site "Engine Match"]
[Date "2008.02.15"]
[Round "2"]
[White "Toga 1.4 Checkov Beta 3 bb5"]
[Black "Shredder 11 Default"]
[Result "0-1"]
[ECO "E54 - Nimzo-Indian/Main line"]

1. d4 {book 0s} Nf6 {book 0s} 2. c4 {book 0s} e6 {book 0s}
3. Nc3 {book 0s} Bb4 {book 0s} 4. e3 {book 0s} O-O {book
0s} 5. Bd3 {book 0s} d5 {book 0s} 6. Nf3 {book 0s} c5 {book
0s} 7. O-O {book 0s} cxd4 {book 0s} 8. exd4 {+0.34/14 30s}
dxc4 {book 0s (Nc6)} 9. Bxc4 {book 0s} a6 {book 0s} 10. a4
{book 0s} Nc6 {book 0s} 11. Bg5 {book 0s} h6 {book 0s}
12. Be3 {book 0s} b6 {+0.09/13 39s} 13. Ne5 {+0.27/13 22s}
Bb7 {+0.15/13 25s} 14. Rc1 {+0.04/13 23s (Nxc6)} Rc8
{+0.13/13 46s (Qd6)} 15. f4 {-0.12/13 27s (f3)} Qd6
{+0.42/14 36s} 16. Rf2 {-0.02/13 28s (Qd3)} Ne7 {+0.68/14
36s (Rfd8)} 17. Bd3 {-0.30/13 27s} Nf5 {+0.65/14 21s}
18. Bxf5 {-0.25/14 26s} exf5 {+0.65/16 28s} 19. Re2
{-0.33/14 20s (Qb3)} Qe6 {+0.59/13 25s} 20. Nd3 {-0.52/14
37s (Qd3)} Bxc3 {+0.85/15 27s} 21. bxc3 {-0.81/14 17s} Ne4
{+0.83/16 28s (Rfe8)} 22. Bd2 {-0.59/15 18s} Bd5 {+0.88/16
56s} 23. Rb1 {-0.61/15 24s} Qd6 {+0.88/15 57s} 24. Qe1
{-0.58/14 20s (Qc2)} Rfe8 {+1.25/12 21s (Rc7)} 25. Re3
{-0.68/13 19s (Ra1)} Re6 {+1.15/14 33s} 26. Ra1 {-0.94/13
27s (Rc1)} a5 {+1.53/14 20s (Bb7)} 27. h3 {-1.23/13 18s
(Rb1)} Bb7 {+1.78/14 22s (Nxd2)} 28. Ne5 {-1.34/13 23s
(Rb1)} f6 {+1.67/15 37s} 29. Nf3 {-1.84/14 19s} Kf7
{+1.65/15 1:13m (Qxf4)} 30. Nh4 {-0.82/13 20s (Qd1)} g6
{+2.14/13 21s (Qxf4)} 31. Re2 {-1.49/13 15s (Bc1)} Ba6
{+2.23/14 16s} 32. Rxe4 {-1.80/15 41s (Re3)} Rxe4 {+2.79/13
5s} 33. Qg3 {-1.83/16 20s} Rg8 {+2.84/15 27s} 34. Rb1
{-1.83/15 18s} Re2 {+2.93/15 16s} 35. Be1 {-2.12/15 17s}
Bb7 {+2.94/15 35s (Qc6)} 36. Rb5 {-2.22/14 17s (Bf2)} Bd5
{+3.01/13 12s (h5)} 37. Bf2 {-2.59/13 10s} Rc2 {+3.85/13
14s (Ra2)} 38. Be1 {-2.59/13 16s (Rb1)} Qc6 {+4.34/15 21s
(Ra2)} 39. Qd3 {-3.22/13 11s} Ra2 {+4.34/15 8s} 40. Bf2
{-3.57/13 15s (c4)} Rxa4 {+4.91/14 13s} 41. Rb1 {-3.75/14
24s (Rb2)} Be4 {+5.69/14 19s} 42. Qb5 {-4.99/15 17s (Qf1)}
Qxb5 {+6.03/16 18s} 43. Rxb5 {-6.15/15 10s} Ra1+ {+6.24/15
18s} 44. Kh2 {-6.22/16 14s} Rf1 {+6.44/15 8s (Ra2)} 45. Bg1
{-4.94/13 14s (Rb2)} a4 {+6.55/15 13s (Rxf4)} 46. Rb2
{-5.53/13 9s (d5)} Ra8 {+8.22/16 11s (Rxf4)} 47. Ra2
{-8.19/14 9s} a3 {+8.29/17 7s} 0-1


[d]r7/5k2/1p3ppp/5p2/3PbP1N/p1P4P/R5PK/5rB1 w - -

{Shredder manages to even the score with in the final position material advantage and unstoppable pawns}

The two games played with the new version both ended in a draw:

[Event "12 Minutes/Game + 6 Seconds/Move"]
[Site "Engine Match"]
[Date "2008.02.16"]
[Round "1"]
[White "Shredder 11 Default"]
[Black "Toga II 1.4 Checkov Beta_3DMbb5"]
[Result "1/2-1/2"]
[ECO "E32 - Nimzo-Indian/Classical Variation"]

1. d4 {book 0s} Nf6 {book 0s} 2. c4 {book 0s} e6 {book 0s}
3. Nc3 {book 0s} Bb4 {book 0s} 4. Qc2 {book 0s} O-O {book
0s} 5. a3 {book 0s} Bxc3+ {book 0s} 6. Qxc3 {book 0s} b6
{book 0s} 7. Bg5 {book 0s} Bb7 {book 0s} 8. f3 {book 0s} h6
{book 0s} 9. Bh4 {book 0s} d5 {book 0s} 10. e3 {book 0s}
Nbd7 {book 0s} 11. cxd5 {book 0s} Nxd5 {book 0s} 12. Bxd8
{book 0s} Nxc3 {book 0s} 13. Bh4 {book 0s} Nd5 {book 0s}
14. Bf2 {book 0s} c5 {book 0s} 15. e4 {book 0s} Nf4 {book
0s} 16. Rd1 {+0.27/15 51s} cxd4 {-0.19/14 23s} 17. Bxd4
{+0.29/16 17s} Rfd8 {-0.18/16 40s} 18. Ne2 {+0.40/16 59s}
Ng6 {-0.25/17 29s} 19. Nc3 {+0.36/16 48s} Nde5 {-0.16/16
21s (Nc5)} 20. Be2 {+0.41/15 44s (h4)} Rac8 {-0.22/16 27s
(Nc6)} 21. Kf2 {+0.30/14 25s (Be3)} Nc4 {-0.19/17 28s}
22. Bxc4 {+0.18/17 1:02m} Rxc4 {-0.26/17 27s} 23. Be3
{+0.18/19 52s} Rcc8 {-0.16/17 24s} 24. Rxd8+ {+0.18/17 48s}
Rxd8 {-0.23/17 15s} 25. Nb5 {+0.24/17 38s} f5 {-0.10/17 30s
(a6)} 26. exf5 {+0.45/16 22s} exf5 {-0.10/17 24s} 27. Nxa7
{+0.43/17 22s} f4 {-0.14/17 17s} 28. Bc1 {+0.34/17 19s} Rd5
{0.00/17 25s} 29. b4 {+0.29/17 17s} Ba6 {0.00/17 17s}
30. g3 {+0.29/17 39s (Nc6)} Bb7 {-0.11/15 33s} 31. gxf4
{+0.29/15 33s} Rd3 {-0.15/15 13s} 32. Ke2 {+0.44/15 12s}
Nxf4+ {-0.13/14 26s (Rxf3)} 33. Bxf4 {+0.36/19 17s} Rxa3
{-0.15/15 15s} 34. Rg1 {+0.36/18 15s} Ra2+ {-0.22/16 12s
(Rxa7)} 35. Ke3 {+0.43/18 16s} Ra3+ {-0.22/17 20s} 36. Kd4
{+0.48/18 20s} Rxa7 {-0.23/17 20s} 37. Bxh6 {+0.48/18 31s}
Bxf3 {-0.20/17 19s} 38. Rg3 {+0.45/17 14s (Bf4)} Rd7+
{-0.13/15 14s (Bh5)} 39. Ke5 {+0.45/15 7s} Bb7 {-0.16/16
14s (Be2)} 40. Be3 {+0.38/16 15s} b5 {-0.14/16 21s} 41. Bh6
{+0.34/16 19s (Bc5)} Rc7 {-0.07/16 13s} 42. Rg1 {+0.29/17
46s (h3)} Kh7 {0.00/17 11s} 43. Rc1 {+0.30/18 10s} Re7+
{0.00/19 17s (Rxc1)} 44. Kd6 {+0.37/13 2s} Re4 {0.00/20 23s
(Re2)} 45. Bxg7 {+0.01/18 12s} Kxg7 {0.00/20 15s} 46. Rc7+
{+0.01/18 10s} Kf6 {0.00/22 10s (Kg6)} 47. Rxb7 {+0.01/19
9s} Rxb4 {0.00/25 10s} 48. h3 {+0.01/21 12s (Kc5)} Rd4+
{0.00/27 13s (Rh4)} 49. Kc7 {+0.01/22 8s (Kc5)} b4 {0.00/23
12s (Rc4+)} 50. Rb5 {-0.01/22 10s (Kc6)} Ke6 {0.00/24 10s
(Rh4)} 51. Kc6 {-0.01/25 9s (Kb6)} Rf4 {0.00/25 11s (Rc4+)}
52. Kc5 {+0.01/25 10s} Rf5+ {0.00/28 10s} 53. Kxb4
{+0.01/32 7s} Rxb5+ {0.00/44 10s} 54. Kxb5 {+0.01/4 0s} Kd5
{0.00/63 0s (Ke5)} 55. Ka5 {0.00/15 3s (Ka4)} Kd4 {0.00/63
0s (Kd6)} 56. Ka4 {0.00/15 3s} Ke4 {0.00/63 0s (Kd5)}
57. Ka3 {0.00/15 3s} 1/2-1/2

[d]8/8/8/8/4k3/K6P/8/8 b - -

[Event "12 Minutes/Game + 6 Seconds/Move"]
[Site "Engine Match"]
[Date "2008.02.16"]
[Round "2"]
[White "Toga II 1.4 Checkov Beta_3DMbb5"]
[Black "Shredder 11 Default"]
[Result "1/2-1/2"]
[ECO "E32 - Nimzo-Indian/Classical Variation"]

1. d4 {book 0s} Nf6 {book 0s} 2. c4 {book 0s} e6 {book 0s}
3. Nc3 {book 0s} Bb4 {book 0s} 4. Qc2 {book 0s} O-O {book
0s} 5. a3 {book 0s} Bxc3+ {book 0s} 6. Qxc3 {book 0s} b6
{book 0s} 7. Bg5 {book 0s} Bb7 {book 0s} 8. f3 {book 0s} h6
{book 0s} 9. Bh4 {book 0s} d5 {book 0s} 10. e3 {book 0s}
Nbd7 {book 0s} 11. cxd5 {book 0s} Nxd5 {book 0s} 12. Bxd8
{book 0s} Nxc3 {book 0s} 13. Bh4 {book 0s} Nd5 {book 0s}
14. Bf2 {book 0s} c5 {book 0s} 15. e4 {book 0s} Nf4 {book
0s} 16. Rd1 {+0.13/15 43s} cxd4 {-0.36/15 27s} 17. Bxd4
{+0.11/15 23s} Rfd8 {-0.35/16 55s (e5)} 18. Ne2 {+0.20/17
34s} Ng6 {-0.33/16 59s} 19. Nc3 {+0.30/16 19s} Nde5
{-0.34/16 36s (Nc5)} 20. Be2 {+0.16/15 33s (Bb5)} Nc6
{-0.43/15 39s (Rac8)} 21. Be3 {+0.30/17 26s} Rxd1+
{-0.44/15 26s} 22. Kxd1 {+0.25/17 18s} e5 {-0.50/16 36s}
23. Ke1 {+0.22/18 2:09m (Kc2)} Nd4 {-0.51/17 30s} 24. Kf2
{+0.21/17 24s} Nxe2 {-0.27/17 27s} 25. Nxe2 {+0.23/17 16s}
Rc8 {-0.28/16 21s (Rd8)} 26. Nc3 {+0.30/16 22s} Rd8
{-0.35/17 46s (Ne7)} 27. Nb5 {+0.29/16 27s} a6 {-0.29/17
1:52m (Nf4)} 28. Nc3 {+0.44/16 15s} b5 {-0.34/17 27s}
29. Rc1 {+0.48/16 18s (g3)} f6 {-0.34/17 20s} 30. a4
{+0.43/16 12s (g3)} b4 {-0.43/17 26s (Bc6)} 31. Na2
{+0.48/17 20s (Ne2)} b3 {-0.34/16 30s} 32. Nb4 {+0.55/18
14s (Nc3)} a5 {-0.15/18 15s} 33. Nc6 {+0.35/18 19s} Bxc6
{-0.15/20 16s} 34. Rxc6 {+0.20/17 4s} Nf4 {-0.15/20 31s}
35. Bxf4 {+0.24/19 22s (Rc3)} exf4 {-0.11/19 7s} 36. Ke2
{+0.28/20 17s} Rd4 {-0.11/19 29s} 37. Rc3 {+0.27/19 12s}
Rxa4 {0.00/19 8s} 38. Rxb3 {+0.19/18 17s} Ra2 {0.00/19 13s}
39. Rb7 {+0.17/18 11s (Kd3)} a4 {0.00/19 14s} 40. Kd3
{+0.02/17 10s} a3 {0.00/17 28s} 41. Kc3 {+0.02/17 16s} Rxb2
{0.00/20 18s (axb2)} 42. Rxb2 {+0.02/19 3s} axb2 {0.00/19
2s} 43. Kxb2 {+0.02/21 5s} Kf7 {0.00/22 14s} 44. Kc3
{+0.02/21 12s} Ke6 {0.00/21 8s} 45. Kd4 {0.00/20 23s (Kc4)}
h5 {0.00/21 8s} 46. h3 {0.00/21 10s (Kc4)} g5 {0.00/22 10s
(Kd6)} 47. Kc4 {0.00/23 9s} 1/2-1/2

[d]8/8/4kp2/6pp/2K1Pp2/5P1P/6P1/8 b - -

{I think Toga managed to keep the equilibrium in these two games well and was not in much danger. It did not create any dangerous threats but for that you often do need some cooperation from your opponent.}

After 10 games the score is:

Shredder 11 32-bit SP - Toga II 1.4 Checkov Beta 3 : 5 - 5 [+3 =4 -3]