Author: Michel Langeveld
Date: 22:40:41 09/23/01
Is Nf3 a better solution?
======================================================================
! ECM.1204 !
======================================================================
+---+---+---+---+---+---+---+---+
8 | *R| | | *R| | | *K| |
+---+---+---+---+---+---+---+---+
7 | | *B| *Q| *P| *B| *P| *P| |
+---+---+---+---+---+---+---+---+
6 | *P| *P| *N| | *P| | | *P|
+---+---+---+---+---+---+---+---+
5 | | | *P| | P | | N | |
+---+---+---+---+---+---+---+---+
4 | P | | B | | | B | | |
+---+---+---+---+---+---+---+---+
3 | | | P | | | | | |
+---+---+---+---+---+---+---+---+
2 | | P | P | R | Q | P | P | P |
+---+---+---+---+---+---+---+---+
1 | | | | R | | | K | |
+---+---+---+---+---+---+---+---+
a b c d e f g h
solution 1. Nxf7
time surplus 0.00 time limit 20:00 (20:00)
nss depth time score variation (1)
7-> 0.42 -0.03 1. Nf3 Na5 2. Bd3 Qc6 3. b3 c4 4. Bxc4
Nxc4 5. Qxc4 Qxc4 6. bxc4
8 0.51 -0.03 1. Nf3 Na5 2. Bd3 Qc6 3. b3 c4 4. Bxc4
Nxc4 5. Qxc4 Qxc4 6. bxc4
8-> 1.15 -0.03 1. Nf3 Na5 2. Bd3 Qc6 3. b3 c4 4. Bxc4
Nxc4 5. Qxc4 Qxc4 6. bxc4
9 1.90 0.03 1. Nf3 Na5 2. Ba2 Ra7 3. b3 Nc6 4.
Bb1 a5 5. h3
9-> 2.78 0.03 1. Nf3 Na5 2. Ba2 Ra7 3. b3 Nc6 4.
Bb1 a5 5. h3
10 4.50 -0.03 1. Nf3 Na5 2. Bd3 Qc6 3. b3 c4 4. Bxc4
Nxc4 5. Qxc4 Qxc4 6. bxc4
10-> 7.89 -0.03 1. Nf3 Na5 2. Bd3 Qc6 3. b3 c4 4. Bxc4
Nxc4 5. Qxc4 Qxc4 6. bxc4
11 10.61 -0.03 1. Nf3 Na5 2. Bd3 Qc6 3. b3 c4 4. Bxc4
Nxc4 5. Qxc4 Qxc4 6. bxc4
11-> 16.41 -0.03 1. Nf3 Na5 2. Bd3 Qc6 3. b3 c4 4. Bxc4
Nxc4 5. Qxc4 Qxc4 6. bxc4
12 19.53 -0.04 1. Nf3 Na5 2. Bd3 Qc6 3. b3 c4 4. Bxc4
Nxc4 5. Qxc4 Qxc4 6. bxc4 Bc6
12-> 57.72 -0.04 1. Nf3 Na5 2. Bd3 Qc6 3. b3 c4 4. Bxc4
Nxc4 5. Qxc4 Qxc4 6. bxc4 Bc6
13 1:05 -0.10 1. Nf3 Na5 2. Bd3 Qc6 3. b3 c4 4. Bxc4
Nxc4 5. Qxc4 Qxc4 6. bxc4 Bc6 7. Rb1
13-> 2:32 -0.10 1. Nf3 Na5 2. Bd3 Qc6 3. b3 c4 4. Bxc4
Nxc4 5. Qxc4 Qxc4 6. bxc4 Bc6 7. Rb1
14 3:19 -0.15 1. Nf3 Na5 2. Bd3 Qc6 3. b3 c4 4. Bxc4
Nxc4 5. Qxc4 Qxc4 6. bxc4 Bc6 7. Be3
Bxa4 8. Bxb6
14 5:01 -0.14 1. Nxf7 Kxf7 2. Rxd7 Rxd7 3. Bxe6+
Kxe6 4. Qc4+ Kf5 5. Qf7+ Bf6 6. Rxd7
Nxe5 7. Qh5+ Kxf4 8. Rxc7 Ra7 9. g3+
Ke4 10. a5 bxa5 11. Rxc5
14-> 6:41 -0.14 1. Nxf7 Kxf7 2. Rxd7 Rxd7 3. Bxe6+
Kxe6 4. Qc4+ Kf5 5. Qf7+ Bf6 6. Rxd7
Nxe5 7. Qh5+ Kxf4 8. Rxc7 Ra7 9. g3+
Ke4 10. a5 bxa5 11. Rxc5
15 8:39 -0.25 1. Nxf7 Kxf7 2. Rxd7 Rxd7 3. Bxe6+
Kxe6 4. Qc4+ Kf5 5. Qf7+ Bf6 6. Rxd7
Nxe5 7. Qh5+ Kxf4 8. Rxc7 Ra7 9. g3+
Ke4 10. a5 bxa5 11. Rxc5 a4
15 11:14 -0.13 1. Nf3 Na5 2. Ba2 Bc6 3. b3 b5 4. axb5
axb5 5. Ra1 d6 6. exd6 Bxd6 7. Ne5
Bd5 8. f3
15-> 18:04 -0.13 1. Nf3 Na5 2. Ba2 Bc6 3. b3 b5 4. axb5
axb5 5. Ra1 d6 6. exd6 Bxd6 7. Ne5
Bd5 8. f3
time=20:01 cpu=99% mat=0 n=551568360 fh=92% nps=459192
ext-> chk=21280168 pp=576337 1rep=1924297 mate=357099
predicted=0 nodes=551568360 evals=94141163
endgame tablebase-> probes done=0 successful=0
hashing-> trans/ref=2% pawn=1% used=99%
----------------------> solution incorrect (59/62).
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.