Author: Uri Blass
Date: 06:50:53 11/22/05
Go up one level in this thread
On November 22, 2005 at 08:52:09, Kolss wrote:
>On November 22, 2005 at 07:19:24, Bernhard Bauer wrote:
>
>>It takes quite a lot of time for TogaII 1.1 to solve this simple position.
>>Why? And what can be done to become faster?
>>
>>[D]8/7p/8/p4p2/5K2/Bpk3P1/4P2P/8 w
>
>
>Hi,
>
>That is a good question. Originally, I thought that tablesbases (TB) and / or
>bitbases (BB) would help in this position, as some of the critical positions in
>the tree are 5-piece endings. However, when I let Ikarus run without TB or BB,
>or with TB (5-piece) but no BB, or with TB and BB (only 4-piece), or with TB and
>BB (4-piece plus PP-P), I essentially always get virtually the same results. In
>particular, the solution (g4!) is always found in ply 11, and the big fail-high
>(to > +3) always occurs in ply 12.
>
>Therefore, I guess that it is most likely mainly due to the evaluation of pawn
>endgames and the queen endgame in the other critical variation, although the TB
>certainly don't hurt much as well.
>
>The main critical line is:
>
>1. g4 fxg4 2. e4 b2 3. Bxb2+ Kxb2 4. e5 a4 5. e6 a3 6. e7 a2 7. e8=Q a1=Q 8.
>Qe5+ (or Qh8+) Kb1 {side comment: the rest could be covered by quiescence
>search} 9. Qxa1+ Kxa1 10. Kxg4.
>
>[D]8/7p/8/8/6K1/8/7P/k7 b - - 0 10
>
>This is a 4-piece pawn ending. If a program evaluates this highly in favor of
>white (because of the distant black king), it will find the solution easily. If
>not, it is much more tricky, as the pawn on h7 will only be captured another 6
>plies later (10. ... Kb2 11. Kh5 Kc3 12. Kh6 Kd4 13. Kxh7). Now that is 25 (24)
>plies down the tree before any program should see a clear advantage for white
>(side comment: which however can be dangerous, as black is lacking only one
>tempo to achieve the draw).
>
>One of the other important lines is:
>
>1. Kxf5 b2 2. Bxb2+ Kxb2 3. e4 a4 4. e5 a3 5. e6 a2 6. e7 a1=Q 7. e8=Q.
>
>[D]4Q3/7p/8/5K2/8/6P1/1k5P/q7 b - - 0 7
>
>Note that here, black queened first and now can give some annoying checks. If I
>let Ikarus run in this position, the score stays stable for quite a while
>(several minutes) at around +1.3 to +1.4.
>
>Depending on how the respective programs evaluate the positions in diagrams 1
>and 2, it may be easy or very difficult to find the correct move.
>
>Of course, this is not at all an encompassing analysis, but I hope that helps a
>bit to understand what might be going on.
>
>Best regards - Munjong.
I tried fruit2.2.1 with no null pruning and no history pruning and no futility
pruning
It is not able to see g4 even at depth 22
New game,
8/7p/8/p4p2/5K2/Bpk3P1/4P2P/8 w - - 0 1
Analysis by Fruit 2.2.1:
1.Kxf5
+- (1.49) Depth: 1/1 00:00:00
1.Kxf5 a4
± (1.25) Depth: 2/5 00:00:00
1.Kxf5 a4 2.Bc5
± (1.36) Depth: 3/6 00:00:00
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5
± (1.40) Depth: 4/8 00:00:00
1.Kxf5 a4 2.Bd6 b2 3.Be5+ Kc2 4.Bxb2 Kxb2
µ (-1.39) Depth: 5/9 00:00:00
1.Ke5 a4 2.e4 fxe4 3.Kxe4 b2 4.Bxb2+ Kxb2 5.Kd4
= (-0.03) Depth: 5/9 00:00:00
1.e4 fxe4 2.Ke3 b2 3.Bxb2+ Kxb2 4.Kxe4 a4
= (0.11) Depth: 5/10 00:00:00
1.e4 fxe4 2.Ke3 b2 3.Bxb2+ Kxb2 4.Kxe4 a4 5.Kd4
= (-0.03) Depth: 6/11 00:00:00 15kN
1.g4 fxg4 2.e4 Kc4 3.Kxg4 a4
= (0.25) Depth: 6/11 00:00:00 25kN
1.g4 fxg4 2.e4 Kd4 3.Bb2+ Kc5 4.Kxg4 a4
² (0.41) Depth: 7/11 00:00:00 30kN, tb=1
1.g4 fxg4 2.e4 Kd4 3.Bb2+ Kc5 4.Kxg4 a4 5.Kf4
² (0.49) Depth: 8/13 00:00:00 54kN, tb=1
1.g4 fxg4 2.e4 a4 3.e5 g3 4.hxg3 b2 5.Bxb2+ Kxb2 6.e6 a3
² (0.40) Depth: 9/14 00:00:00 121kN, tb=1
1.g4 fxg4 2.e4 a4 3.e5 b2 4.Bxb2+ Kxb2 5.e6 a3 6.e7 a2 7.e8Q a1Q 8.Qe5+ Kb1
9.Qxa1+ Kxa1 10.Kxg4
² (0.62) Depth: 10/21 00:00:01 261kN, tb=1
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ 8.Kg5 Qc1+
9.Kg4 Qc4+ 10.Kf5
± (1.06) Depth: 10/22 00:00:01 367kN, tb=1
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ 8.Kg5 Qc1+
9.Kg4 Qd1+ 10.Kh4 Qd4+ 11.Kg5
± (1.02) Depth: 11/23 00:00:01 597kN, tb=2
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ 8.Kg4 Qc4+
9.Kh3 Qf1+ 10.Kh4 Qc4+ 11.Kg5 Qd5+ 12.Kf4
± (1.03) Depth: 12/27 00:00:01 1153kN, tb=2
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ 8.Kg4 Qc4+
9.Kh3 Qf1+ 10.Kh4 Qf6+ 11.Kg4 Qd4+ 12.Kf3
± (1.02) Depth: 13/28 00:00:02 2408kN, tb=2
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ 8.Kg4 Qc4+
9.Kh3 Qf1+ 10.Kh4 Qf2 11.Qe5+ Kb3 12.Qd5+ Kb4
± (1.07) Depth: 14/30 00:00:03 4717kN, tb=2
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ 8.Kg4 Qc4+
9.Kh3 Qf1+ 10.Kh4 Qf6+ 11.Kg4 Qd4+ 12.Kf3 Qd3+ 13.Qe3 Qf5+ 14.Qf4
± (1.12) Depth: 15/33 00:00:07 9720kN, tb=2
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ 8.Kg5 Qc1+
9.Kh4 Qh6+ 10.Qh5 Qf6+ 11.Qg5 Qd4+ 12.Kh3 Qe4 13.Qg4 Qe5 14.Qb4+ Kc2
± (1.13) Depth: 16/37 00:00:14 19725kN, tb=4
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ 8.Kg5 Qc1+
9.Kh5 Qd2 10.Qe5+ Kb3 11.g4 Kc4 12.g5 Kb4 13.Qe7+ Kb5
± (1.14) Depth: 17/38 00:00:28 39221kN, tb=15
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ 8.Kg5 Qc1+
9.Kh5 Qc5+ 10.Kh4 Qd4+ 11.Kh3 Qd3 12.Qe5+ Kb3 13.Kh4 Qd8+ 14.Kh5 Qd7 15.Qe3+ Kc4
16.Qe4+ Kc5
± (1.12) Depth: 18/39 00:00:53 73758kN, tb=42
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ 8.Kg5 Qc1+
9.Kh5 Qc5+ 10.Kh4 Qd4+ 11.Kh3 Qd3 12.Qe6 Kc3 13.Qf6+ Kc4 14.Qa6+ Kd4 15.Qa7+ Kc4
16.Qf7+ Kb5
± (1.13) Depth: 19/46 00:01:39 140512kN, tb=148
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ 8.Kg5 Qc1+
9.Kh4 Qh6+ 10.Qh5 Qf6+ 11.Qg5 Qd4+ 12.Qf4 Qd8+ 13.Kh3 Qd7+ 14.g4 Kc3 15.Kh4 Qd8+
16.g5 Qd4
± (1.14) Depth: 20/46 00:03:34 297740kN, tb=675
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ 8.Kg5 Qc1+
9.Kh4 Qh6+ 10.Qh5 Qf6+ 11.Qg5 Qd4+ 12.Qf4 Qd8+ 13.Kh3 Qd3 14.Kg2 Kc2 15.Qc7+ Kd1
16.g4 Qe2+
± (1.15) Depth: 21/55 00:08:10 668562kN, tb=2459
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ 8.Kg5 Qc1+
9.Kh4 Qh6+ 10.Qh5 Qf6+ 11.Qg5 Qd4+ 12.Qf4 Qd8+ 13.Kh3 Qd3 14.Kg2 Kc2 15.g4 Qe2+
16.Kg3 Qe1+
± (1.15) Depth: 22/59 00:17:28 1383385kN, tb=7688
(, 22.11.2005)
It is surprising that
After 1.g4 fruit has no problem to see that white is winning at depth 13
New game,
8/7p/8/p4p2/5KP1/Bpk5/4P2P/8 b - - 0 1
Analysis by Fruit 2.2.1:
1...fxg4 2.Kxg4
= (0.07) Depth: 1/2 00:00:00
1...fxg4 2.Kxg4 a4
= (-0.21) Depth: 2/6 00:00:00
1...fxg4 2.Kxg4 a4 3.Bc5
= (-0.10) Depth: 3/8 00:00:00
1...fxg4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a4 5.Kxg4
= (0.01) Depth: 4/9 00:00:00
1...fxg4 2.e4 Kc4 3.Kxg4 a4
= (0.25) Depth: 5/10 00:00:00
1...fxg4 2.e4 Kd4 3.Bb2+ Kc5 4.Kxg4 a4
² (0.41) Depth: 6/10 00:00:00 6kN
1...fxg4 2.e4 Kd4 3.Bb2+ Kc5 4.Kxg4 a4 5.Kf4
² (0.49) Depth: 7/12 00:00:00 16kN, tb=2
1...fxg4 2.e4 a4 3.e5 g3 4.hxg3 b2 5.Bxb2+ Kxb2 6.e6 a3
² (0.40) Depth: 8/13 00:00:00 38kN, tb=2
1...fxg4 2.e4 a4 3.e5 b2 4.Bxb2+ Kxb2 5.e6 a3 6.e7 a2 7.e8Q a1Q 8.Qe5+ Kb1
9.Qxa1+ Kxa1 10.Kxg4
² (0.62) Depth: 9/20 00:00:00 89kN, tb=2
1...fxg4 2.e4 Kd4 3.Bb2+ Kc5 4.Kxg4 a4 5.Kf4 h5 6.Ke3 Kb4
± (0.76) Depth: 10/23 00:00:00 236kN, tb=2
1...fxg4 2.e4 a4 3.e5 b2 4.Bxb2+ Kxb2 5.e6 g3 6.hxg3 a3 7.e7 a2 8.e8Q a1Q 9.Qh8+
Ka2 10.Qxh7
± (1.32) Depth: 11/23 00:00:00 459kN, tb=4
1...fxg4 2.e4 a4 3.e5 b2 4.Bxb2+ Kxb2 5.e6 g3 6.hxg3 a3 7.e7 a2 8.e8Q a1Q 9.Qh8+
Ka2 10.Qg8+ Ka3 11.Qxh7
± (1.19) Depth: 12/23 00:00:00 821kN, tb=4
1...fxg4 2.e4 g3 3.Kxg3 Kc4 4.Kf4 a4 5.e5 Kd5 6.Kf5 h5 7.e6 Kc6
+- (1.71) Depth: 13/31 00:00:02 2294kN, tb=25
1...fxg4 2.e4 g3 3.Kxg3 Kc4 4.Kf4 a4 5.e5 Kd5 6.Kf5 h5 7.e6 Kc6 8.Ke5
+- (1.78) Depth: 14/31 00:00:03 3548kN, tb=27
1...fxg4 2.e4 g3 3.Kxg3 Kc4 4.Kf4 a4 5.e5 Kd5 6.Kf5 h5 7.e6 Kc6 8.Ke5 h4
+- (1.99) Depth: 15/31 00:00:05 6083kN, tb=32
1...fxg4 2.e4 g3 3.Kxg3 Kc4 4.Kf4 Kb5 5.e5 Kc6 6.e6 Kc7 7.Kf5 Kd8 8.Kf6 Ke8
9.Ke5
+- (2.36) Depth: 16/31 00:00:09 12012kN, tb=41
1...fxg4 2.e4 g3 3.Kxg3 Kc4 4.Kf4 Kb5 5.e5 Kc6 6.e6 Kc7 7.Kf5 Kd8 8.Ke4 a4 9.Kd4
Kc7
+- (2.29) Depth: 17/37 00:00:15 20130kN, tb=81
1...fxg4 2.e4 g3 3.Kxg3 Kc4 4.Kf4 Kb5 5.Kf5 Ka4 6.Bb2 Kb5 7.e5 a4 8.e6 Kc6 9.Kf6
a3 10.Bxa3
+- (3.29) Depth: 18/43 00:00:27 35906kN, tb=131
1...fxg4 2.e4 g3 3.Kxg3 Kc4 4.Kf4 Kb5 5.e5 Kc6 6.e6 Kc7 7.Ke5 Kd8 8.Kd4 a4 9.Kc4
h5 10.Kb5 Kc7 11.Kxa4
+- (3.36) Depth: 19/45 00:00:58 73818kN, tb=316
(, 22.11.2005)
I guess that Fruit always looks at the tablebases in pv nodes.
For comparison some analysis by
Fruit with no pruning and aggresive tablebases hits(EGTB depth=0)
New game,
[D]8/7p/8/p4p2/5K2/Bpk3P1/4P2P/8 w - - 0 1
Analysis by Fruit 2.2.1:
1.Kxf5
+- (1.49) Depth: 1/1 00:00:00
1.Kxf5 a4
± (1.25) Depth: 2/5 00:00:00
1.Kxf5 a4 2.Bc5
± (1.36) Depth: 3/6 00:00:00
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5
± (1.40) Depth: 4/8 00:00:00
1.Kxf5 a4 2.Bd6 b2 3.Be5+ Kc2 4.Bxb2 Kxb2
µ (-1.39) Depth: 5/9 00:00:00
1.Ke5 a4 2.e4 fxe4 3.Kxe4 b2 4.Bxb2+ Kxb2 5.Kd4
= (-0.03) Depth: 5/9 00:00:00
1.e4 fxe4 2.Ke3 b2 3.Bxb2+ Kxb2 4.Kxe4 a4
= (0.11) Depth: 5/10 00:00:00
1.e4 fxe4 2.Ke3 b2 3.Bxb2+ Kxb2 4.Kxe4 a4 5.Kd4
= (-0.03) Depth: 6/11 00:00:00 15kN
1.g4 fxg4 2.e4 Kc4 3.Kxg4 a4
= (0.25) Depth: 6/11 00:00:00 25kN
1.g4 fxg4 2.e4 Kd4 3.Bb2+ Kc5 4.Kxg4 a4
² (0.41) Depth: 7/11 00:00:00 30kN, tb=2
1.g4 fxg4 2.e4 Kd4 3.Bb2+ Kc5 4.Kxg4 a4 5.Kf4
² (0.49) Depth: 8/13 00:00:00 54kN, tb=2
1.g4 fxg4 2.e4 a4 3.e5 g3 4.hxg3 b2 5.Bxb2+ Kxb2 6.e6 a3
² (0.40) Depth: 9/14 00:00:00 121kN, tb=3
1.g4 fxg4 2.e4 a4 3.e5 b2 4.Bxb2+ Kxb2 5.e6 a3 6.e7 a2 7.e8Q a1Q 8.Qe5+ Kb1
9.Qxa1+ Kxa1 10.Kxg4
² (0.62) Depth: 10/21 00:00:00 261kN, tb=14
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ 8.Kg5 Qc1+
9.Kg4 Qc4+ 10.Kf5
± (1.06) Depth: 10/22 00:00:00 366kN, tb=14
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ 8.Kg5 Qc1+
9.Kg4 Qd1+ 10.Kh4 Qd4+ 11.Kg5
± (1.02) Depth: 11/23 00:00:01 597kN, tb=41
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ 8.Kg4 Qc4+
9.Kh3 Qf1+ 10.Kh4 Qc4+ 11.Kg5 Qd5+ 12.Kf4
± (1.03) Depth: 12/27 00:00:03 1154kN, tb=136
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ 8.Kg4 Qc4+
9.Kh3 Qf1+ 10.Kh4 Qf6+ 11.Kg4 Qd4+ 12.Kf3
± (1.02) Depth: 13/28 00:00:07 2406kN, tb=563
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ 8.Kg4 Qc4+
9.Kh3 Qf1+ 10.Kh4 Qf2 11.Qe5+ Kb3 12.Qd5+ Kb4
± (1.07) Depth: 14/30 00:00:14 4718kN, tb=2103
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ 8.Kg4 Qc4+
9.Kh3 Qf1+ 10.Kh4 Qf6+ 11.Kg4 Qd4+ 12.Kf3 Qd3+ 13.Qe3 Qf5+ 14.Qf4
± (1.12) Depth: 15/33 00:00:27 9653kN, tb=7858
1.Kxf5 a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ 8.Kg4 Qc4+
9.Kh5 Qc5+ 10.Kh4 Qd4+ 11.Kh3 Qd3 12.Qe5+ Kb3 13.Kg4 Qc4+ 14.Kf3
± (1.14) Depth: 16/36 00:01:02 19380kN, tb=24340
1.g4 fxg4 2.e4 b2 3.Bxb2+ Kc4 4.e5 Kd5 5.Kf5 a4 6.e6 g3 7.hxg3 Kc6 8.Kf6 a3
9.Bxa3 h5
+- (5.45) Depth: 16/44 00:03:08 38194kN, tb=57399
1.g4 fxg4 2.e4 Kc4 3.e5 Kd5 4.Kf5 h5 5.e6 b2 6.Bxb2 Kd6 7.Kf6 g3 8.hxg3 h4 9.Kf7
hxg3
+- (5.95) Depth: 17/44 00:04:10 54803kN, tb=76935
1.g4 fxg4 2.e4 Kc4 3.e5 Kd5 4.Kf5 h5 5.e6 b2 6.Bxb2 Kd6 7.Kf6 g3 8.hxg3 h4
9.gxh4 a4 10.Be5+ Kc6
+- (5.96) Depth: 18/44 00:05:03 78865kN, tb=111392
(, 22.11.2005)
After 1.g4
New game,
8/7p/8/p4p2/5KP1/Bpk5/4P2P/8 b - - 0 1
Analysis by Fruit 2.2.1:
1...fxg4 2.Kxg4
= (0.07) Depth: 1/2 00:00:00
1...fxg4 2.Kxg4 a4 3.Bc5
= (-0.10) Depth: 4/8 00:00:00
1...fxg4 2.Kxg4 a4 3.Bc5
= (-0.10) Depth: 4/8 00:00:00
1...fxg4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a4 5.Kxg4
= (0.01) Depth: 4/9 00:00:00
1...fxg4 2.e4 Kc4 3.Kxg4 a4
= (0.25) Depth: 5/10 00:00:00
1...fxg4 2.e4 Kd4 3.Bb2+ Kc5 4.Kxg4 a4
² (0.41) Depth: 6/10 00:00:00 6kN
1...fxg4 2.e4 Kd4 3.Bb2+ Kc5 4.Kxg4 a4 5.Kf4
² (0.49) Depth: 7/12 00:00:00 16kN, tb=3
1...fxg4 2.e4 a4 3.e5 g3 4.hxg3 b2 5.Bxb2+ Kxb2 6.e6 a3
² (0.40) Depth: 8/13 00:00:00 38kN, tb=5
1...fxg4 2.e4 a4 3.e5 b2 4.Bxb2+ Kxb2 5.e6 a3 6.e7 a2 7.e8Q a1Q 8.Qe5+ Kb1
9.Qxa1+ Kxa1 10.Kxg4
² (0.62) Depth: 9/20 00:00:00 89kN, tb=16
1...fxg4 2.e4 Kd4 3.Bb2+ Kc5 4.Kxg4 a4 5.Kf4 h5 6.Ke3 Kb4
± (0.76) Depth: 10/23 00:00:01 236kN, tb=81
1...fxg4 2.e4 a4 3.e5 b2 4.Bxb2+ Kxb2 5.e6 g3 6.hxg3 a3 7.e7 a2 8.e8Q a1Q 9.Qh8+
Ka2 10.Qxh7
± (1.32) Depth: 11/23 00:00:02 457kN, tb=154
1...fxg4 2.e4 Kd4 3.Bb2+ Kc5 4.Kxg4 Kc6 5.e5 Kd7 6.Kf5 Ke8 7.e6 a4
+- (1.69) Depth: 12/30 00:00:09 1257kN, tb=1182
1...fxg4 2.e4 Kd4 3.Bb2+ Kc5 4.Kxg4 Kc6 5.e5 a4 6.Kf5 h5 7.e6 Kd6 8.Ba3+ Kc6
+- (1.71) Depth: 13/30 00:00:10 1976kN, tb=1347
1...fxg4 2.e4 Kd4 3.e5 Kd5 4.Kf5 a4 5.e6 g3 6.hxg3 Kc6 7.Kf6 b2 8.Bxb2
+- (3.73) Depth: 14/30 00:00:15 4264kN, tb=3005
1...fxg4 2.e4 Kd4 3.e5 Kd5 4.Kf5 h5 5.e6 g3 6.hxg3 Kc6 7.Kf6 h4 8.Ke7 hxg3
+- (3.75) Depth: 15/31 00:00:22 7396kN, tb=5553
(, 22.11.2005)
Uri
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