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Subject: Re: two kinky positions

Author: Robert Hyatt

Date: 15:48:52 05/17/00

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On May 17, 2000 at 09:04:00, Jarkko Pesonen wrote:

>On May 15, 2000 at 21:13:13, Dann Corbit wrote:
>
>>What is the best move for this position?
>>[D] 2kr1b1r/ppp1qppp/2p2n2/7b/4P3/2NBBP2/PPP1Q1PP/R3K2R b KQ -
>>
>>How long does your program take to find Bxa7?
>>[D] 2kr1b1r/pppq1ppp/3p4/3Pp3/1n2P1n1/2N1BN2/PPP2PPP/R2Q1RK1 w - - acd 14; acn
>>122077893; acs 600; ce 32; pv Bxa7;
>
>Crafty version 17.10
>hash table memory =        12M bytes.
>pawn hash table memory =    1M bytes.
>EGTB cache memory =         1M bytes.
>
>evaluation asymmetry -20
>
>Pentium II 350 MHz
>
>                8     1.29   0.14   1. a3 Na6 2. Ng5 h5 3. Qe2 Kb8 4. Qc4
>                                    Nc5 5. Bxc5 dxc5
>                8->   2.73   0.14   1. a3 Na6 2. Ng5 h5 3. Qe2 Kb8 4. Qc4
>                                    Nc5 5. Bxc5 dxc5
>                9     4.12   0.23   1. a3 Nxe3 2. fxe3 Na6 3. Ng5 Re8 4.
>                                    Nxf7 Rg8 5. Qd3 Nc5
>                9     6.00   0.29   1. Bxa7 b6 2. h3 Nf6 3. a3 Na6 4. Qd3
>                                    Kb7 5. Nb5 <HT>
>                9->   6.43   0.29   1. Bxa7 b6 2. h3 Nf6 3. a3 Na6 4. Qd3
>                                    Kb7 5. Nb5 <HT>
>               10    10.88   0.05   1. Bxa7 b6 2. Qd2 Kb7 3. a4 Na6 4.
>                                    Nb5 Nc5 5. Qb4 Be7
>               10    15.49   0.30   1. a3 Na6 2. Ng5 h5 3. Qf3 Nf6 4. Qe2
>                                    Kb8 5. f4 Ng4 6. fxe5 Nxe5
>               10->  18.00   0.30   1. a3 Na6 2. Ng5 h5 3. Qf3 Nf6 4. Qe2
>                                    Kb8 5. f4 Ng4 6. fxe5 Nxe5
>               11    22.26   0.29   1. a3 Na6 2. Ng5 h5 3. Bxa7 b6 4. f3
>                                    Nf6 5. Qd3 Kb7 6. Nb5
>               11->  30.01   0.29   1. a3 Na6 2. Ng5 h5 3. Bxa7 b6 4. f3
>                                    Nf6 5. Qd3 Kb7 6. Nb5
>               12    40.17   0.40   1. a3 Na6 2. Ng5 h5 3. Qe2 Kb8 4. Nb5
>                                    Nc5 5. Bxc5 dxc5 6. f3 Nf6 7. Qc4
>               12->  54.55   0.40   1. a3 Na6 2. Ng5 h5 3. Qe2 Kb8 4. Nb5
>                                    Nc5 5. Bxc5 dxc5 6. f3 Nf6 7. Qc4
>               13     1:25   0.29   1. a3 Na6 2. Ng5 Nf6 3. Qe2 h6 4. Nf3
>                                    Kb8 5. h3 Qe7 6. Qc4 Nc5 7. Bxc5 dxc5
>               13->   3:44   0.29   1. a3 Na6 2. Ng5 Nf6 3. Qe2 h6 4. Nf3
>                                    Kb8 5. h3 Qe7 6. Qc4 Nc5 7. Bxc5 dxc5
>               14     4:40   0.32   1. a3 Na6 2. Ng5 Nf6 3. Qe2 h6 4. Nf3
>                                    Kb8 5. Nb5 b6 6. Nc3 Qc8 7. Qc4 Be7
>               14    18:27   0.37   1. Ng5 Nf6 2. f4 h6 3. fxe5 dxe5 4.
>                                    Nf3 Ng4 5. Qe2 Kb8 6. a3 Nxe3 7. Nxe5
>                                    Qe7 8. Qxe3 Nxc2
>               14->  20:25   0.37   1. Ng5 Nf6 2. f4 h6 3. fxe5 dxe5 4.
>                                    Nf3 Ng4 5. Qe2 Kb8 6. a3 Nxe3 7. Nxe5
>                                    Qe7 8. Qxe3 Nxc2
>               15    41:23   0.32   1. Ng5 Nf6 2. a3 Na6 3. Qe2 h6 4. Nf3
>                                    Kb8 5. Nb5 Nxe4 6. Bxa7+ Ka8 7. Be3
>                                    Qf5 8. Qc4 Kb8
>               15    53:14     ++   1. Bxa7!!
>               15   211:26   1.30   1. Bxa7 b6 2. a4 Kb7 3. a5 Ra8 4. axb6
>                                    cxb6 5. Qe2 Rxa7 6. Rxa7+ Kxa7 7. Ra1+
>                                    Kb8 8. Ra4 Nxd5 9. exd5 Qf5 10. Qc4
>               15-> 214:52   1.30   1. Bxa7 b6 2. a4 Kb7 3. a5 Ra8 4. axb6
>                                    cxb6 5. Qe2 Rxa7 6. Rxa7+ Kxa7 7. Ra1+
>                                    Kb8 8. Ra4 Nxd5 9. exd5 Qf5 10. Qc4
>
>Jarkko


compare your search times to mine in this thread.  Then go buy a quad xeon.

:)



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