Author: Tim Foden
Date: 09:18:17 06/26/03
Go up one level in this thread
On June 26, 2003 at 11:18:26, Igor Gorelikov wrote:
>One Test position
>==================
>
>There is a section of everyday's puzzles on my site:
>http://www.digichess.gr/infiniteloop/home.php
>
>All puzzles are taken from engine to engine games of Infinite Loop.
>
>Prior to publish a puzzle on my site I always offer Crafty 19.3 to solve it.
>
>I was amazed that today's puzzle was hard to solve even for Crafty so it
>can be a good test position for any chess engine.
>
>What Phalanx XXII (engine number 10 among free WB engines) plays here as
>white (and find it at once)?
>
>[D] r1bq3r/ppp3pp/3k4/3p4/3nP1Q1/8/PP4PP/RN3RK1 w - - 0 17
>
>PS: Yace can find it after some time too.
>
>Best regards,
>Igor Gorelikov
GLC 3.00 likes e5+ after 2 seconds, and sticks with this until over 10 mins. Is
this the move you were talking about?
Cheers, Tim.
Analysis GLC3.00, AXP 1.47GHz, 24MB Hash:
Game stage: Middle game
Current eval: -4.705
Ply Time Score Nodes Principal variation
3 0.010 -0.818 5204 Qg3+ Kc6 2. Qc3+ Kb5 3. Qxd4 dxe4 4. Qxg7
4 0.010 -0.418 5862 Qg3+ {++} Kc6 2. Qc3+ Kb5 3. Na3+ Ka4 4. Qxd4+ Ka5
4 0.050 -0.419 15610 Qg3+ {--} Kc6 2. Qc3+ Kb5 3. Na3+ Ka6 4. Qxd4 dxe4
4 0.050 +0.000 17582 Qg3+ Kc6 2. Qc3+ Kd6 3. Qg3+
4 0.050 +0.000 17652 Qg3+ Kc6 2. Qc3+ Kd6 3. Qg3+
5 0.090 -0.400 54055 Qg3+ {--} Kc6 2. Qc3+ Kb5 3. Qxd4 dxe4 4. Qxe4 Ka6
5 0.090 -0.399 55363 Qg3+ {++} Kc6 2. Qc3+ Kb5 3. Qxd4 dxe4 4. Nc3+ Ka5
5. Qxg7
5 0.100 +0.000 58624 Qg3+ Kc6 2. Qc3+ Kd6 {ht}
5 0.100 +0.000 58685 Qg3+ Kc6 2. Qc3+ Kd6 {ht}
6 0.130 +0.000 89112 Qg3+ Kc6 2. Qc3+ Kd6 3. Qg3+
6 0.190 +0.000 159626 Qg3+ Kc6 2. Qc3+ Kd6 3. Qg3+
7 0.310 +0.000 279060 Qg3+ Kc6 2. Qc3+ Kd6 3. Qg3+
7 0.521 +0.000 515358 Qg3+ Kc6 2. Qc3+ Kd6 3. Qg3+
8 1.182 +0.000 1204349 Qg3+ Ke6 2. Qg4+ Kd6 3. Qg3+
8 2.083 +0.137 2016248 e5+ Kxe5 2. Qxg7+ Kd6 3. Qxd4 c5 4. Qf4+ Kc6 5.
Qh6+ Kc7 6. Rf7+ Bd7 7. Nc3
8 2.564 +0.137 2521010 e5+ Kxe5 2. Qxg7+ Kd6 3. Qxd4 c5 4. Qf4+ Kc6 5.
Qh6+ Kc7 6. Rf7+ Bd7 7. Nc3
9 5.658 +0.116 5209474 e5+ Kxe5 2. Qf4+ Ke6 3. Re1+ Kd7 4. Qxd4 c6 5.
Qxg7+ Kd6 6. Nd2 Bd7 7. Qe5+ Kc5 8. Rec1+ Kb5 9.
a3
9 8.282 +0.116 7864451 e5+ Kxe5 2. Qf4+ Ke6 3. Re1+ Kd7 4. Qxd4 c6 5.
Qxg7+ Kd6 6. Nd2 Bd7 7. Qe5+ Kc5 8. Rec1+ Kb5 9.
a3
10 17.215 +0.344 15178k e5+ Kxe5 2. Qxg7+ Kd6 3. Qxd4 c5 4. Qf4+ Kc6 5.
Qh6+ Kc7 6. Rf7+ Bd7 7. Nc3 d4 8. Nd5+ Kb8
10 24.545 +0.344 22048k e5+ Kxe5 2. Qxg7+ Kd6 3. Qxd4 c5 4. Qf4+ Kc6 5.
Qh6+ Kc7 6. Rf7+ Bd7 7. Nc3 d4 8. Nd5+ Kb8
11 35.140 +0.378 31689k e5+ Kxe5 2. Qxg7+ Kd6 3. Qxd4 c5 4. Qf4+ Kc6 5.
Qh6+ Kb5 6. Na3+ Ka5 7. Rac1 b6 8. Qd2+ Ka4 9.
Rf7
11 1:12.09 +0.378 66314k e5+ Kxe5 2. Qxg7+ Kd6 3. Qxd4 c5 4. Qf4+ Kc6 5.
Qh6+ Kb5 6. Na3+ Ka5 7. Rac1 b6 8. Qd2+ Ka4 9.
Rf7
12 1:34.61 +0.778 83585k e5+ {++} Kxe5 2. Qxg7+ Kd6 3. Qxd4 c5 4. Qf4+ Kc6
5. Qh6+ Kb5 6. a4+ Ka5 7. Rf6 Be6 8. Rxe6 Qb6
12 3:16.22 +0.777 180901k e5+ {--} Kxe5 2. Qxg7+ Kd6 3. Qxd4 c6 4. Nc3 Be6
5. Kh1
12 3:27.25 +0.799 188954k e5+ Kxe5 2. Qxg7+ Kd6 3. Qxd4 c6 4. Nc3 Be6 5. Rf6
Rf8 6. Ne4+ Kc7 7. Rxe6 dxe4 8. Qxe4
12 3:27.25 +0.799 188954k e5+ Kxe5 2. Qxg7+ Kd6 3. Qxd4 c6 4. Nc3 Be6 5. Rf6
Rf8 6. Ne4+ Kc7 7. Rxe6 dxe4 8. Qxe4
13 4:51.53 +0.774 265528k e5+ Kxe5 2. Qxg7+ Kd6 3. Qxd4 c6 4. Nc3 Be6 5. Rf6
Qb6 6. Ne4+ Kc7 7. Nc5 Bd7 8. Qe5+ Kd8 9. Rc1
13 9:54.50 +0.774 552191k e5+ Kxe5 2. Qxg7+ Kd6 3. Qxd4 c6 4. Nc3 Be6 5. Rf6
Qb6 6. Ne4+ Kc7 7. Nc5 Bd7 8. Qe5+ Kd8 9. Rc1
Analyse>exit
local: t=10:01.9 nps=926981.7 n=557927104 (21.6% / 78.4%)
total: t=10:01.9 nps=926981.7 n=557927104
stats: fh=95.2%/1.92%/0.606% draws=274293
trans: probes=120108870 hits=17005613 (14.16%) draft=11303697 (9.41%)
tcuts: exact=646 (0.00%) upper=7271351 (6.05%) lower=3348020 (2.79%)
tstor: exact=1007 (0.00%) upper=50080760 (72.89%) lower=18622997 (27.11%)
ext: check=53177449 recap=1090466 ppush=25167 1rep=2514387 thrt=0
q-moves: gen=158215007 tested=86778821 made/un=19893257 max-dep=11
max eval diff: part-1=2.371 part-2=3.787
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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