Author: leonid
Date: 05:20:52 06/02/02
Go up one level in this thread
On June 02, 2002 at 05:20:35, Tim Foden wrote:
>On June 01, 2002 at 08:45:35, leonid wrote:
>
>>[D]Kn4QQ/RNQQQQQ1/nqrqqp2/qNRQq3/kBBp4/rbq5/Pb6/q7 w - -
>>
>>Please indicate your result.
>
>GLC 2.18, 24MB Hash, AXP 1.46GHz, finds that Bxb3+ is a mate in 10 after 21.04
>seconds.
>
>Cheers, Tim.
Thanks, Tim!
Since I see that you found mate at 10, I will try later at the same depth but
with much deeper selective. Before I used my usual, almost default selective
that make search at reasonable time. It is "mixed search" where initial brute
force search goes the most 3 moves deep (6 plys) before switching to "real
selective". I will try later to search 4 and 5 moves (8 and 10 plys) by brute
force before starting "real selective".
Cheers,
Leonid.
>~~~~~~~~~~~~~~~
>
>Analysis follows below:
>
>>anal
> Game stage: Opening
> Current eval: 9.473
> Ply Time Score Nodes Principal Variation
> 2 0.05 +25.637 7457 Nxc3+ dxc3 2. Qcxd6 Nxd7 3. Nxa5 Rxd6 4. Qdxe6
> 2 0.06 +25.637 8103 Nxc3+ dxc3 2. Qcxd6 Nxd7 3. Nxa5 Rxd6 4. Qdxe6
> 3 0.12 +25.237 32190 Nxc3+ Kxb4 2. Nxd6 Nxd7 {--}
> 3 0.15 +20.078 52989 Nxc3+ Kxb4 2. Qxb6+ Rxb6 3. Nxd6 Qxf7 4. Nxf7 Nxd7
> 5. Nxe5 Naxc5
> 3 0.20 +25.093 76241 Bxb3+ Qxb3 2. axb3+ Rxb3 3. Qxb6 Qxb4 4. N7xd6 Nxd7
> 5. Qfxe6 Qxd5
> 3 0.22 +25.093 79504 Bxb3+ Qxb3 2. axb3+ Rxb3 3. Qxb6 Qxb4 4. N7xd6 Nxd7
> 5. Qfxe6 Qxd5
> 4 0.22 +25.493 85450 Bxb3+ Qxb3 2. axb3+ Rxb3 3. Qxb3+ Kxb3 4. Nxa5+
> Qaxa5 5. Qcxd6 {++}
> 4 0.30 +31.048 149230 Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ dxc3 4. Rxa5+ Kxb4
> 5. Qxb6+ Rxb6 6. Qexd6+ Q5xd6 7. Nxd6 Nxd7 8.
> Qfxe6
> 4 0.32 +31.048 159472 Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ dxc3 4. Rxa5+ Kxb4
> 5. Qxb6+ Rxb6 6. Qexd6+ Q5xd6 7. Nxd6 Nxd7 8.
> Qfxe6
> 5 0.34 +31.448 169340 Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ dxc3 4. Rxa5+ Kxb4
> 5. Qxb6+ Rxb6 6. Qexd6+ Q5xd6 7. Q5xd6+ Qxd6 8.
> Qxd6+ Nc5 9. Rxa1 {++}
> 5 0.85 +36.093 626421 Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
> 5. Qd7xd6+ Qc5 6. Q5xc5+ Nxc5 7. Ra4+ Qxa4 8.
> Rxa4+
> 5 0.95 +36.093 706806 Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
> 5. Qd7xd6+ Qc5 6. Q5xc5+ Nxc5 7. Ra4+ Qxa4 8.
> Rxa4+
> 6 1.08 +36.493 803776 Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
> 5. Qxb6+ Rxb6 6. Qd7xd6+ Rxd6 7. Qexd6+ Q6xd6 8.
> Qc4+ Rxc4 {ht} {++}
> 6 4.84 +52.118 4084517 Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
> 5. Qxb6+ Rxb6 6. Qexd6+ Rc5 7. Qxb6+ Kc3 8. Rxc5+
> Nxc5 9. Qbxc5+ Kd2 10. Qd7xe6 Qxe6 11. Qdxe6
> 6 6.31 +52.118 5393956 Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
> 5. Qxb6+ Rxb6 6. Qexd6+ Rc5 7. Qxb6+ Kc3 8. Rxc5+
> Nxc5 9. Qbxc5+ Kd2 10. Qd7xe6 Qxe6 11. Qdxe6
> 7 6.51 +52.518 5583896 Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
> 5. Qxb6+ Rxb6 6. Rb5+ Ka3 7. Qexd6+ Rxd6 8. Ra5+
> Kb4 {ht} {++}
> 7 21.04 +Mate10 23435k Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
> 5. Qxb6+ Rxb6 6. Rb5+ Ka3 7. Qexd6+ Q5xd6 8.
> Q7xd6+ Rxd6 9. Ra5+ Kb4 {ht}
> 7 32.88 +Mate10 37362k Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
> 5. Qxb6+ Rxb6 6. Rb5+ Ka3 7. Qexd6+ Q5xd6 8.
> Q7xd6+ Rxd6 9. Ra5+ Kb4 {ht}
> 8 2:24 +Mate10 189975k Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
> 5. Qxb6+ Rxb6 6. Rb5+ Ka3 7. Qexd6+ Q5xd6 8.
> Q7xd6+ Rxd6 9. Ra5+ Kb4 10. Qb5# {ht}
> 8 3:56 +Mate10 306338k Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
> 5. Qxb6+ Rxb6 6. Rb5+ Ka3 7. Qexd6+ Q5xd6 8.
> Q7xd6+ Rxd6 9. Ra5+ Kb4 10. Qb5# {ht}
> 9 12:35 +Mate10 1084m Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
> 5. Qxb6+ Rxb6 6. Rb5+ Ka3 7. Qexd6+ Q5xd6 8.
> Q7xd6+ Rxd6 9. Ra5+ Kb4 10. Qb5# {ht}
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