Author: Ed Schröder
Date: 02:46:56 09/24/01
Go up one level in this thread
On September 24, 2001 at 01:40:41, Michel Langeveld wrote:
>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).
I get Nxf7 in 4 seconds, will try the other 2 too.
Ed
-----------------------------------------------------
00:00:00 7.00 0.41 1.Nf3 Na5 2.Bd3 g5 3.Bg3 g4 4.Ne1
00:00:01 8.00 0.20 1.Nf3 Na5 2.Ba2 Bc6 3.b3 b5 4.axb5
axb5 5.Qd3 (0)
00:00:01 9.00 0.22 1.Nf3 Na5 2.Ba2 Bc6 3.b3 b5 4.axb5
axb5 5.Qd3 Nb7 (1)
00:00:03 10.00 0.14 1.Nf3 Na5 2.Bd3 Qc6 3.b3 c4 4.Bxc4
Nxc4 5.Qxc4 Qxc4 6.bxc4 Bc6 (2)
00:00:04 10.02 0.14 1.Nxf7
00:00:06 10.02 1.57 1.Nxf7 Kxf7 2.Rxd7 Rxd7 3.Bxe6 Kxe6
4.Qc4 Kf5 5.Qf7 Bf6 6.Rxd7 Qc8 7.exf6
b5 (4)
00:00:16 11.00 2.24 1.Nxf7 Kxf7 2.Rxd7 Rxd7 3.Bxe6 Kxe6
4.Qc4 Kf5 5.Qf7 Bf6 6.Rxd7 Qc8 7.exf6
Nd8 8.Qh5 Kxf4 (9)
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