Here's a position from a recent FRC game that percyblakeney at chessgames.com pointed out engines have a hard time with. Both sides have castled, so it's now a standard chess position. [d]2kr1r1q/Bp3pbp/2p1bnp1/4p3/5P2/P1N3PP/1PPR4/2KR1B1Q w - -
I tested two programs and neither found Ba6 in the maximum time I was willing to wait, but both agreed after I pointed it out to them.
Nakamura - Aronian position
Moderator: Ras
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Dirt
- Posts: 2851
- Joined: Wed Mar 08, 2006 10:01 pm
- Location: Irvine, CA, USA
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Zach Wegner
- Posts: 1922
- Joined: Thu Mar 09, 2006 12:51 am
- Location: Earth
Re: Nakamura - Aronian position
ZCT does OK here, finds it in a couple of minutes.Dirt wrote:Here's a position from a recent FRC game that percyblakeney at chessgames.com pointed out engines have a hard time with. Both sides have castled, so it's now a standard chess position. [d]2kr1r1q/Bp3pbp/2p1bnp1/4p3/5P2/P1N3PP/1PPR4/2KR1B1Q w - -
I tested two programs and neither found Ba6 in the maximum time I was willing to wait, but both agreed after I pointed it out to them.
Code: Select all
Depth Time Score PV (nodes)
15 1:14 +0.18 1. Na4 exf4 2. Qf3 Rxd2 3. Rxd2 Nd7 4. Qxf4 Be5 5. Qb4
Bxg3 6. Bd4 f6 7. Qe7 Re8 8. Bxf6 Rxe7 9. Bxh8
(182299568)
15 1:46 +0.34 1. Qg1 Rxd2 2. Rxd2 exf4 3. gxf4 Rd8 4. Qb6 Rxd2 5.
Ba6 Rxc2+ 6. Kxc2 bxa6 7. Qxc6+ Kd8 8. Bb6+ Ke7
9. Bc5+ Kd8 10. Kc1 Bxh3 11. Qxa6 (257002595)
15 2:05 +0.61 1. Ba6 e4 2. Qg1 Nd7 3. Rd6 bxa6 4. Rxc6+ Kb7 5. Rdd6
a5 6. Bb6 Rc8 7. Rxc8 Rxc8 8. Bxa5 Nc5 (307373775)
[15] 2:07 +0.61 1. Ba6 e4 2. Qg1 Nd7 3. Rd6 bxa6 4. Rxc6+ Kb7 5. Rdd6
a5 6. Bb6 Rc8 7. Rxc8 Rxc8 8. Bxa5 Nc5 (311571316)
16 2:20 +1.91 1. Ba6 e4 2. Qg1 Nd7 3. Rd6 bxa6 4. Rxc6+ Kb7 5. Rxa6
Kxa6 6. Rxd7 e3 7. Qf1+ e2 8. Qxe2+ Bc4 9. Qxc4+
Ka5 10. Qb5# (342188626)
[16] 2:23 +1.91 1. Ba6 e4 2. Qg1 Nd7 3. Rd6 bxa6 4. Rxc6+ Kb7 5. Rxa6
Kxa6 6. Rxd7 e3 7. Qf1+ e2 8. Qxe2+ Bc4 9. Qxc4+
Ka5 10. Qb5# (351325271)
17 2:48 +2.30 1. Ba6 e4 2. Qg1 Nd7 3. Rd6 bxa6 4. Rxc6+ Kb7 5. Rxa6
Bd5 6. Qf1 Bxc3 7. Qb5+ Kc7 8. Rxd5 Bxb2+ 9. Qxb2
Qxb2+ 10. Kxb2 Rde8 11. Rb5 (411156605)
[17] 2:56 +2.30 1. Ba6 e4 2. Qg1 Nd7 3. Rd6 bxa6 4. Rxc6+ Kb7 5. Rxa6
Bd5 6. Qf1 Bxc3 7. Qb5+ Kc7 8. Rxd5 Bxb2+ 9. Qxb2
Qxb2+ 10. Kxb2 Rde8 11. Rb5 (432554558)
18 3:34 +2.36 1. Ba6 e4 2. Qg1 Nd7 3. Rd6 bxa6 4. Rxc6+ Kb7 5. Rxa6
Bd5 6. Qf1 Bxc3 7. Qb5+ Kc7 8. Rxd5 Bxb2+ 9. Qxb2
Qxb2+ 10. Kxb2 Rde8 11. Rb5 Kc8H (523157924)
[18] 3:48 +2.36 1. Ba6 e4 2. Qg1 Nd7 3. Rd6 bxa6 4. Rxc6+ Kb7 5. Rxa6
Bd5 6. Qf1 Bxc3 7. Qb5+ Kc7 8. Rxd5 Bxb2+ 9. Qxb2
Qxb2+ 10. Kxb2 Rde8 11. Rb5 Kc8H (560883465)
19 7:22 +3.47 1. Ba6 e4 2. Qg1 Nd7 3. Rd6 bxa6 4. Rxc6+ Kb7 5. Rxa6
Bc4 6. Ra4 Bxc3 7. Rxd7+ Kc6 8. Rxd8 Bxb2+ 9. Kb1
Rxd8 10. Rxc4+ Kd7 11. Qb6 Bxa3 12. Rxe4
(1092987552)
[19] 7:42 +3.47 1. Ba6 e4 2. Qg1 Nd7 3. Rd6 bxa6 4. Rxc6+ Kb7 5. Rxa6
Bc4 6. Ra4 Bxc3 7. Rxd7+ Kc6 8. Rxd8 Bxb2+ 9. Kb1
Rxd8 10. Rxc4+ Kd7 11. Qb6 Bxa3 12. Rxe4
(1146900861)
20 21:35 +4.54 1. Ba6 Rd5 2. Nxd5 Bxd5 3. Qg1 bxa6 4. Qb6 Kd7 5.
Rxd5+ cxd5 6. fxe5 Rd8 7. exf6 Bxf6 8. Rxd5+ Ke7
9. Rxd8 Qxd8 10. Qb7+ Kf8 11. Bc5+ Kg8 12. Qxa6
(3177679502)
[20] 22:37 +4.54 1. Ba6 Rd5 2. Nxd5 Bxd5 3. Qg1 bxa6 4. Qb6 Kd7 5.
Rxd5+ cxd5 6. fxe5 Rd8 7. exf6 Bxf6 8. Rxd5+ Ke7
9. Rxd8 Qxd8 10. Qb7+ Kf8 11. Bc5+ Kg8 12. Qxa6
(3341407721)-
kgburcham
- Posts: 2016
- Joined: Sun Feb 17, 2008 4:19 pm
3 commercials
[d] 2kr1r1q/Bp3pbp/2p1bnp1/4p3/5P2/P1N3PP/1PPR4/2KR1B1Q w - - 0 1
Program 1
1.Ba6
+/- (0.83 !) Depth: 14 00:00:15 4565kN
1.Ba6
+/- (1.03 !) Depth: 14 00:00:17 5077kN
1.Ba6
+- (1.43 !) Depth: 14 00:00:23 6486kN
1.Ba6
+- (2.23 !) Depth: 14 00:00:31 8737kN
1.Ba6
+- (3.83 !) Depth: 14 00:00:50 14386kN
Program 2
1.Ba6 e4 2.Qg1 Nd7 3.Rxd7 Rxd7 4.Qb6 Rxd1+ 5.Nxd1 Bxb2+ 6.Nxb2 Qc3 7.Qxb7+
+- (1.90) Depth: 14/47 00:00:20 67423kN
1.Ba6 Rd5 2.Qg1 Nd7 3.Nxd5 cxd5 4.Bb5 e4 5.Rxd5 Bxb2+ 6.Kb1 Bxa3 7.Bxd7+ Bxd7 8.Bd4
+- (3.00) Depth: 15/49 00:01:03 198mN
1.Ba6 Rd5 2.Qg1 Rd4 3.fxe5 Bh6 4.Qxd4 Nd7 5.Qd6 Bxd2+ 6.Rxd2 Qxe5 7.Qxc6+ Kd8 8.Qxb7 Bxh3 9.Bb6+ Ke8 10.Re2
+- (8.25) Depth: 16/51 00:02:47 535mN
Program 3
1.Ba6 e4 2.Qg1 Nd7 3.Na4 Bd5 4.Nb6+ Kc7 5.Rxd5 Bxb2+ 6.Kb1 cxd5 7.Nxd5+ Kd6 8.Nb6+ Ke7 9.Nxd7 Rxd7 10.Qc5+ Kf6 11.Rxd7 bxa6
+- (5.04) Depth: 21/51 00:02:39 1828mN
1.Ba6 e4 2.Qg1 Nd7 3.Rxd7 Rxd7 4.Qb6 Be5 5.fxe5 Qxe5 6.Qxc6+ Kd8 7.Bb6+ Ke8 8.Bxb7 f5 9.Qc8+ Kf7 10.Rxd7+ Kg8 11.Qc7
+- (9.34) Depth: 22/45 00:04:43 3227mN
Program 1
1.Ba6
+/- (0.83 !) Depth: 14 00:00:15 4565kN
1.Ba6
+/- (1.03 !) Depth: 14 00:00:17 5077kN
1.Ba6
+- (1.43 !) Depth: 14 00:00:23 6486kN
1.Ba6
+- (2.23 !) Depth: 14 00:00:31 8737kN
1.Ba6
+- (3.83 !) Depth: 14 00:00:50 14386kN
Program 2
1.Ba6 e4 2.Qg1 Nd7 3.Rxd7 Rxd7 4.Qb6 Rxd1+ 5.Nxd1 Bxb2+ 6.Nxb2 Qc3 7.Qxb7+
+- (1.90) Depth: 14/47 00:00:20 67423kN
1.Ba6 Rd5 2.Qg1 Nd7 3.Nxd5 cxd5 4.Bb5 e4 5.Rxd5 Bxb2+ 6.Kb1 Bxa3 7.Bxd7+ Bxd7 8.Bd4
+- (3.00) Depth: 15/49 00:01:03 198mN
1.Ba6 Rd5 2.Qg1 Rd4 3.fxe5 Bh6 4.Qxd4 Nd7 5.Qd6 Bxd2+ 6.Rxd2 Qxe5 7.Qxc6+ Kd8 8.Qxb7 Bxh3 9.Bb6+ Ke8 10.Re2
+- (8.25) Depth: 16/51 00:02:47 535mN
Program 3
1.Ba6 e4 2.Qg1 Nd7 3.Na4 Bd5 4.Nb6+ Kc7 5.Rxd5 Bxb2+ 6.Kb1 cxd5 7.Nxd5+ Kd6 8.Nb6+ Ke7 9.Nxd7 Rxd7 10.Qc5+ Kf6 11.Rxd7 bxa6
+- (5.04) Depth: 21/51 00:02:39 1828mN
1.Ba6 e4 2.Qg1 Nd7 3.Rxd7 Rxd7 4.Qb6 Be5 5.fxe5 Qxe5 6.Qxc6+ Kd8 7.Bb6+ Ke8 8.Bxb7 f5 9.Qc8+ Kf7 10.Rxd7+ Kg8 11.Qc7
+- (9.34) Depth: 22/45 00:04:43 3227mN
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zullil
- Posts: 6442
- Joined: Tue Jan 09, 2007 12:31 am
- Location: PA USA
- Full name: Louis Zulli
Re: Nakamura - Aronian position
Crafty-23.0 seems to indicate a forced mate:
Code: Select all
max threads set to 8.
EGTB cache memory = 256M bytes.
hash table memory = 3072M bytes.
pawn hash table memory = 512M bytes.
choose from book moves randomly (using weights.)
choose from 5 best moves.
pondering enabled.
Audio output enabled
game/10 minutes primary time control
Crafty v23.0 (8 cpus)
White(1): book off
book file disabled.
White(1): ponder off
pondering disabled.
White(1): setboard 2kr1r1q/Bp3pbp/2p1bnp1/4p3/5P2/P1N3PP/1PPR4/2KR1B1Q w - -
White(1): st 600
search time set to 600.00.
White(1): display stats
display statistics at end of each search.
White(1): display
+---+---+---+---+---+---+---+---+
8 | | . |<K>|<R>| |<R>| |<Q>|
+---+---+---+---+---+---+---+---+
7 |-B-|<P>| . | | . |<P>|<B>|<P>|
+---+---+---+---+---+---+---+---+
6 | | . |<P>| . |<B>|<N>|<P>| . |
+---+---+---+---+---+---+---+---+
5 | . | | . | |<P>| | . | |
+---+---+---+---+---+---+---+---+
4 | | . | | . | |-P-| | . |
+---+---+---+---+---+---+---+---+
3 |-P-| |-N-| | . | |-P-|-P-|
+---+---+---+---+---+---+---+---+
2 | |-P-|-P-|-R-| | . | | . |
+---+---+---+---+---+---+---+---+
1 | . | |-K-|-R-| . |-B-| . |-Q-|
+---+---+---+---+---+---+---+---+
a b c d e f g h
White(1): go
time limit 10:00 (+0.00) (10:00)
depth time score variation (1)
starting thread 1
starting thread 2
starting thread 3
starting thread 4
starting thread 5
starting thread 6
starting thread 7
8 0.04 0.99 1. fxe5 Rxd2 2. Rxd2 Nd5 3. Bc5 Nxc3
4. bxc3 Rd8
8-> 0.04 0.99 1. fxe5 Rxd2 2. Rxd2 Nd5 3. Bc5 Nxc3
4. bxc3 Rd8 (s=3)
9 0.05 0.71 1. fxe5 Rxd2 2. Rxd2 Nd5 3. Nxd5 Bxd5
4. Bg2 Bh6 5. Bxd5 Bxd2+ 6. Kxd2 cxd5
7. Qxd5 (s=2)
9-> 0.09 0.71 1. fxe5 Rxd2 2. Rxd2 Nd5 3. Nxd5 Bxd5
4. Bg2 Bh6 5. Bxd5 Bxd2+ 6. Kxd2 cxd5
7. Qxd5 (s=3)
10 0.10 0.71 1. fxe5 Rxd2 2. Rxd2 Nd5 3. Nxd5 Bxd5
4. Bg2 Bh6 5. Bxd5 Bxd2+ 6. Kxd2 cxd5
7. Qxd5 (s=2)
10-> 0.13 0.71 1. fxe5 Rxd2 2. Rxd2 Nd5 3. Nxd5 Bxd5
4. Bg2 Bh6 5. Bxd5 Bxd2+ 6. Kxd2 cxd5
7. Qxd5 (s=2)
11 0.18 0.50 1. fxe5 Rxd2 2. Rxd2 Nd7 3. Qe4 Bxe5
4. Qe3 Bxc3 5. bxc3 Bd5 6. Bb5
11-> 0.26 0.50 1. fxe5 Rxd2 2. Rxd2 Nd7 3. Qe4 Bxe5
4. Qe3 Bxc3 5. bxc3 Bd5 6. Bb5
12 0.30 0.37 1. fxe5 Rxd2 2. Rxd2 Nd7 3. Qe4 Bxe5
4. Bd4 f5 5. Qh4 Re8 6. Bxe5 Nxe5
12 0.67 +1 1. Bg2!
12 0.80 0.92 1. Bg2 Rxd2 2. Rxd2 Rd8 3. Bxc6 e4
4. Bxe4 Nxe4 5. Qxe4 Rxd2 6. Kxd2 Bxc3+
7. bxc3 Bxh3
12-> 0.80 0.92 1. Bg2 Rxd2 2. Rxd2 Rd8 3. Bxc6 e4
4. Bxe4 Nxe4 5. Qxe4 Rxd2 6. Kxd2 Bxc3+
7. bxc3 Bxh3
13 1.07 -1 1. Bg2?
13 1.34 0.48 1. Bg2 e4 2. Kb1 Rxd2 3. Rxd2 Rd8 4.
Rxd8+ Qxd8 5. Bc5 Qa5 6. Bb4 Qf5 7.
Nxe4 Nxe4 8. Bxe4 Qxh3 9. Qxh3 Bxh3
13-> 1.64 0.48 1. Bg2 e4 2. Kb1 Rxd2 3. Rxd2 Rd8 4.
Rxd8+ Qxd8 5. Bc5 Qa5 6. Bb4 Qf5 7.
Nxe4 Nxe4 8. Bxe4 Qxh3 9. Qxh3 Bxh3
14 1.92 0.63 1. Bg2 e4 2. Rxd8+ Rxd8 3. Rxd8+ Qxd8
4. Bf2 Qh8 5. Bd4 Qd8 6. Bxf6 Bxf6
7. Nxe4 Bd4 8. a4 Kc7
14-> 2.31 0.63 1. Bg2 e4 2. Rxd8+ Rxd8 3. Rxd8+ Qxd8
4. Bf2 Qh8 5. Bd4 Qd8 6. Bxf6 Bxf6
7. Nxe4 Bd4 8. a4 Kc7
15 2.85 0.61 1. Bg2 e4 2. Rxd8+ Rxd8 3. Rxd8+ Qxd8
4. Bf2 Qh8 5. Bd4 Qd8 6. Bxf6 Bxf6
7. Nxe4 Bd4 8. a4 h6 9. Bf3
15-> 3.80 0.61 1. Bg2 e4 2. Rxd8+ Rxd8 3. Rxd8+ Qxd8
4. Bf2 Qh8 5. Bd4 Qd8 6. Bxf6 Bxf6
7. Nxe4 Bd4 8. a4 h6 9. Bf3
16 6.34 0.72 1. Bg2 e4 2. Rxd8+ Rxd8 3. Bd4 h5 4.
Be5 h4 5. Rxd8+ Kxd8 6. Qd1+ Bd7 7.
gxh4 Qxh4 8. Qd2 Ke8 9. Qe3 Kf8 10.
Bd6+ Kg8 11. Nxe4 Nxe4 12. Bxe4 Qxh3
16-> 8.41 0.72 1. Bg2 e4 2. Rxd8+ Rxd8 3. Bd4 h5 4.
Be5 h4 5. Rxd8+ Kxd8 6. Qd1+ Bd7 7.
gxh4 Qxh4 8. Qd2 Ke8 9. Qe3 Kf8 10.
Bd6+ Kg8 11. Nxe4 Nxe4 12. Bxe4 Qxh3
17 10.45 0.72 1. Bg2 e4 2. Rxd8+ Rxd8 3. Bd4 h5 4.
Be5 h4 5. Rxd8+ Kxd8 6. Qd1+ Bd7 7.
gxh4 Qxh4 8. Qd2 Ke8 9. Qe3 Kf8 10.
Bd6+ Kg8 11. Nxe4 Nxe4 12. Bxe4 Qxh3
17-> 17.47 0.72 1. Bg2 e4 2. Rxd8+ Rxd8 3. Bd4 h5 4.
Be5 h4 5. Rxd8+ Kxd8 6. Qd1+ Bd7 7.
gxh4 Qxh4 8. Qd2 Ke8 9. Qe3 Kf8 10.
Bd6+ Kg8 11. Nxe4 Nxe4 12. Bxe4 Qxh3
(s=2)
18 41.41 0.88 1. Bg2 e4 2. Rxd8+ Rxd8 3. Bd4 h5 4.
Be5 Rxd1+ 5. Qxd1 Nd5 6. Bxg7 Qxg7
7. Nxe4 Ne3 8. Qe2 Nxg2 9. Qxg2 Kc7
10. a4 f6
18-> 51.01 0.88 1. Bg2 e4 2. Rxd8+ Rxd8 3. Bd4 h5 4.
Be5 Rxd1+ 5. Qxd1 Nd5 6. Bxg7 Qxg7
7. Nxe4 Ne3 8. Qe2 Nxg2 9. Qxg2 Kc7
10. a4 f6
19 1:04 0.62 1. Bg2 e4 2. Rxd8+ Rxd8 3. Bd4 Rxd4
4. Rxd4 Nd5 5. Ra4 Nb6 6. Rxe4 Bxc3
7. bxc3 Qxc3 8. Qe1 Qxa3+ 9. Kd2 Nc4+
10. Ke2 Qb2 11. Qd1 Qc3
19 2:09 +1 1. Ba6!
19 2:44 +3 1. Ba6!
19 4:20 +M 1. Ba6!
time=10:00 mat=0 n=11511088153 fh=91% nps=19.2M
ext-> check=513.0M qcheck=1314.5M reduce=3850.4M/435.5M
predicted=0 evals=28.4M 50move=0 EGTBprobes=0 hits=0
SMP-> splits=1344789 aborts=136529 data=81/512 elap=10:00
terminating SMP processes.
White(1): Ba6
time used: 10:00
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yanquis1972
- Posts: 1766
- Joined: Wed Jun 03, 2009 12:14 am
Re: 3 commercials
what are the three programs??? what is the point of posting analysis if you don't ascribe it to a particular engine.
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BBauer
- Posts: 658
- Joined: Wed Mar 08, 2006 8:58 pm
Re: Nakamura - Aronian position
Forced mate???
Crafty23 is very strong, but a forced mate?
Here some output from program4
16 00:23 38.824.336 1.665.494 +1,41 Bf1g2 e5e4
17 00:39 65.522.183 1.682.860 +1,43 Bf1g2 e5e4
17 00:59 99.271.989 1.686.520 +1,78 Bf1a6
18 02:21 233.314.770 1.656.182 +3,37 Bf1a6
kind regards
Bernhard
Crafty23 is very strong, but a forced mate?
Here some output from program4
16 00:23 38.824.336 1.665.494 +1,41 Bf1g2 e5e4
17 00:39 65.522.183 1.682.860 +1,43 Bf1g2 e5e4
17 00:59 99.271.989 1.686.520 +1,78 Bf1a6
18 02:21 233.314.770 1.656.182 +3,37 Bf1a6
kind regards
Bernhard
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zullil
- Posts: 6442
- Joined: Tue Jan 09, 2007 12:31 am
- Location: PA USA
- Full name: Louis Zulli
Re: Nakamura - Aronian position
I wrote "seems" because I am uncertain of the meaning of "+M" in the "score" column at depth 19 in the output I posted. Perhaps Bob or another who is a Crafty expert can elucidate.BBauer wrote:Forced mate???
Crafty23 is very strong, but a forced mate?
I'll let Crafty run longer on the position, just to see what happens.
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jwes
- Posts: 778
- Joined: Sat Jul 01, 2006 7:11 am
Re: Nakamura - Aronian position
+M is a large fail high (or fail low if black to move) and means that crafty thinks it is winning at least a piece and possibly a mate. You need to let it finish the ply to find the real score.zullil wrote:I wrote "seems" because I am uncertain of the meaning of "+M" in the "score" column at depth 19 in the output I posted. Perhaps Bob or another who is a Crafty expert can elucidate.BBauer wrote:Forced mate???
Crafty23 is very strong, but a forced mate?
I'll let Crafty run longer on the position, just to see what happens.
-
zullil
- Posts: 6442
- Joined: Tue Jan 09, 2007 12:31 am
- Location: PA USA
- Full name: Louis Zulli
Re: Nakamura - Aronian position
Thanks. I'll modify the search time so that Crafty completes depth 19.jwes wrote: +M is a large fail high (or fail low if black to move) and means that crafty thinks it is winning at least a piece and possibly a mate. You need to let it finish the ply to find the real score.
-
zullil
- Posts: 6442
- Joined: Tue Jan 09, 2007 12:31 am
- Location: PA USA
- Full name: Louis Zulli
Re: Nakamura - Aronian position
No forced mate, just me misunderstanding Crafty's output. After completing depth 19, Crafty plays Bxa6 and scores it +5.44. See below.BBauer wrote:Forced mate???
Crafty23 is very strong, but a forced mate?
Code: Select all
Crafty v23.0 (8 cpus)
White(1): book off
book file disabled.
White(1): ponder off
pondering disabled.
White(1): setboard 2kr1r1q/Bp3pbp/2p1bnp1/4p3/5P2/P1N3PP/1PPR4/2KR1B1Q w - -
White(1): display stats
display statistics at end of each search.
White(1): st 6000
search time set to 6000.00.
White(1): sd 19
search depth set to 19.
White(1): display
+---+---+---+---+---+---+---+---+
8 | | . |<K>|<R>| |<R>| |<Q>|
+---+---+---+---+---+---+---+---+
7 |-B-|<P>| . | | . |<P>|<B>|<P>|
+---+---+---+---+---+---+---+---+
6 | | . |<P>| . |<B>|<N>|<P>| . |
+---+---+---+---+---+---+---+---+
5 | . | | . | |<P>| | . | |
+---+---+---+---+---+---+---+---+
4 | | . | | . | |-P-| | . |
+---+---+---+---+---+---+---+---+
3 |-P-| |-N-| | . | |-P-|-P-|
+---+---+---+---+---+---+---+---+
2 | |-P-|-P-|-R-| | . | | . |
+---+---+---+---+---+---+---+---+
1 | . | |-K-|-R-| . |-B-| . |-Q-|
+---+---+---+---+---+---+---+---+
a b c d e f g h
White(1): go
time limit 100:00 (+0.00) (100:00)
depth time score variation (1)
starting thread 1
starting thread 2
starting thread 3
starting thread 4
starting thread 5
starting thread 6
starting thread 7
8 0.04 0.99 1. fxe5 Rxd2 2. Rxd2 Nd5 3. Bc5 Nxc3
4. bxc3 Rd8
8-> 0.05 0.99 1. fxe5 Rxd2 2. Rxd2 Nd5 3. Bc5 Nxc3
4. bxc3 Rd8 (s=3)
9 0.06 0.71 1. fxe5 Rxd2 2. Rxd2 Nd5 3. Nxd5 Bxd5
4. Bg2 Bh6 5. Bxd5 Bxd2+ 6. Kxd2 cxd5
7. Qxd5 (s=2)
9-> 0.09 0.71 1. fxe5 Rxd2 2. Rxd2 Nd5 3. Nxd5 Bxd5
4. Bg2 Bh6 5. Bxd5 Bxd2+ 6. Kxd2 cxd5
7. Qxd5 (s=3)
10 0.11 0.71 1. fxe5 Rxd2 2. Rxd2 Nd5 3. Nxd5 Bxd5
4. Bg2 Bh6 5. Bxd5 Bxd2+ 6. Kxd2 cxd5
7. Qxd5 (s=2)
10-> 0.13 0.71 1. fxe5 Rxd2 2. Rxd2 Nd5 3. Nxd5 Bxd5
4. Bg2 Bh6 5. Bxd5 Bxd2+ 6. Kxd2 cxd5
7. Qxd5 (s=2)
11 0.19 0.37 1. fxe5 Rxd2 2. Rxd2 Nd7 3. Qe4 Bxe5
4. Bd4 f5 5. Qh4 Re8 6. Bxe5 Nxe5
11 0.49 0.92 1. Bg2 Rxd2 2. Rxd2 Rd8 3. Bxc6 e4
4. Bxe4 Nxe4 5. Qxe4 Rxd2 6. Kxd2 Bxc3+
7. bxc3 Bxh3
11-> 0.49 0.92 1. Bg2 Rxd2 2. Rxd2 Rd8 3. Bxc6 e4
4. Bxe4 Nxe4 5. Qxe4 Rxd2 6. Kxd2 Bxc3+
7. bxc3 Bxh3 (s=3)
12 0.57 0.92 1. Bg2 Rxd2 2. Rxd2 Rd8 3. Bxc6 e4
4. Bxe4 Nxe4 5. Qxe4 Rxd2 6. Kxd2 Bxc3+
7. bxc3 Bxh3 (s=2)
12-> 0.66 0.92 1. Bg2 Rxd2 2. Rxd2 Rd8 3. Bxc6 e4
4. Bxe4 Nxe4 5. Qxe4 Rxd2 6. Kxd2 Bxc3+
7. bxc3 Bxh3
13 0.97 -1 1. Bg2?
13 1.15 0.53 1. Bg2 e4 2. Rxd8+ Rxd8 3. Rxd8+ Qxd8
4. Bg1 Qe7 5. Bd4 h6 6. Qe1 Qd7 7.
Bxf6 Bxf6 8. Nxe4
13-> 1.49 0.53 1. Bg2 e4 2. Rxd8+ Rxd8 3. Rxd8+ Qxd8
4. Bg1 Qe7 5. Bd4 h6 6. Qe1 Qd7 7.
Bxf6 Bxf6 8. Nxe4
14 1.92 0.46 1. Bg2 e4 2. Rxd8+ Rxd8 3. Rxd8+ Qxd8
4. Bg1 g5 5. Bxe4 Nxe4 6. Nxe4 gxf4
7. gxf4 f5 8. Nc5 Bd5
14-> 2.37 0.46 1. Bg2 e4 2. Rxd8+ Rxd8 3. Rxd8+ Qxd8
4. Bg1 g5 5. Bxe4 Nxe4 6. Nxe4 gxf4
7. gxf4 f5 8. Nc5 Bd5
15 3.35 0.61 1. Bg2 e4 2. Rxd8+ Rxd8 3. Rxd8+ Qxd8
4. Bf2 Qh8 5. Bd4 Qd8 6. Bxf6 Bxf6
7. Nxe4 Bd4 8. a4 h6 9. Bf3
15-> 4.25 0.61 1. Bg2 e4 2. Rxd8+ Rxd8 3. Rxd8+ Qxd8
4. Bf2 Qh8 5. Bd4 Qd8 6. Bxf6 Bxf6
7. Nxe4 Bd4 8. a4 h6 9. Bf3
16 6.60 0.72 1. Bg2 e4 2. Rxd8+ Rxd8 3. Bd4 h5 4.
Be5 h4 5. Rxd8+ Kxd8 6. Qd1+ Bd7 7.
gxh4 Qxh4 8. Qd2 Ke8 9. Qe3 Kf8 10.
Bd6+ Kg8 11. Nxe4 Nxe4 12. Bxe4 Qxh3
16-> 8.62 0.72 1. Bg2 e4 2. Rxd8+ Rxd8 3. Bd4 h5 4.
Be5 h4 5. Rxd8+ Kxd8 6. Qd1+ Bd7 7.
gxh4 Qxh4 8. Qd2 Ke8 9. Qe3 Kf8 10.
Bd6+ Kg8 11. Nxe4 Nxe4 12. Bxe4 Qxh3
17 22.54 0.94 1. Bg2 e4 2. Rxd8+ Rxd8 3. Bd4 h5 4.
Be5 h4 5. Rxd8+ Kxd8 6. Qd1+ Nd7 7.
Bxg7 Qxg7 8. Nxe4 hxg3 9. Qd3 Kc7 10.
Qd6+ Kc8 11. Nxg3
17-> 27.81 0.94 1. Bg2 e4 2. Rxd8+ Rxd8 3. Bd4 h5 4.
Be5 h4 5. Rxd8+ Kxd8 6. Qd1+ Nd7 7.
Bxg7 Qxg7 8. Nxe4 hxg3 9. Qd3 Kc7 10.
Qd6+ Kc8 11. Nxg3
18 33.34 0.88 1. Bg2 e4 2. Rxd8+ Rxd8 3. Bd4 h5 4.
Be5 Rxd1+ 5. Qxd1 Nd5 6. Bxg7 Qxg7
7. Nxe4 Ne3 8. Qe2 Nxg2 9. Qxg2 Kc7
10. a4 f6
18-> 42.47 0.88 1. Bg2 e4 2. Rxd8+ Rxd8 3. Bd4 h5 4.
Be5 Rxd1+ 5. Qxd1 Nd5 6. Bxg7 Qxg7
7. Nxe4 Ne3 8. Qe2 Nxg2 9. Qxg2 Kc7
10. a4 f6
19 57.78 0.62 1. Bg2 e4 2. Rxd8+ Rxd8 3. Bd4 Rxd4
4. Rxd4 Nd5 5. Ra4 Nb6 6. Rxe4 Bxc3
7. bxc3 Qxc3 8. Qe1 Qxa3+ 9. Kd2 Nc4+
10. Ke2 Qb2 11. Qd1 Qc3
19 2:04 +1 1. Ba6!
19 2:42 +3 1. Ba6!
19 3:52 +M 1. Ba6!
19 30:18 5.44 1. Ba6 Rd5 2. Nxd5 Nxd5 3. Rxd5 Bxd5
4. Rxd5 e4 5. Rd6 Bxb2+ 6. Kb1 Bxa3
7. Rxc6+ Kd7 8. Rb6 bxa6 <HT>
19-> 30:18 5.44 1. Ba6 Rd5 2. Nxd5 Nxd5 3. Rxd5 Bxd5
4. Rxd5 e4 5. Rd6 Bxb2+ 6. Kb1 Bxa3
7. Rxc6+ Kd7 8. Rb6 bxa6 <HT>
time=30:18 mat=0 n=34304748867 fh=90% nps=18.9M
ext-> check=1470.5M qcheck=146.7M reduce=1630.2M/938.7M
predicted=0 evals=4281.9M 50move=0 EGTBprobes=0 hits=0
SMP-> splits=3833069 aborts=408307 data=91/512 elap=30:18
terminating SMP processes.
White(1): Ba6
time used: 30:18