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Subject: Re: Test Position

Author: Vincent Lejeune

Date: 00:40:22 04/24/04

Go up one level in this thread


Shredder 8 is not convinced at all that Rd7+ is the best moves ; 2-best moves
after 10 min (AMD 2800+)


Analysis by Shredder 8:

1. +- (4.42): 1.Tb8 Dxf2 2.Fxf2 Txf2 3.Cg8+ Rd7 4.Rg1 Txg2+ 5.Rf1 Tg3 6.De5 Txh3
7.Cf6+ Re7 8.Cd5+ Fxd5 9.Dxd5 b5 10.Tb6
2. +- (3.83): 1.Td7+ Fxd7 2.Cd5+ Re8 3.Df6 Cg7 4.Fe5 Dxe5+ 5.Dxe5+ Fe6 6.Db8+
Rd7 7.Dxb7+ Rd6 8.Ce3 Txf2 9.Db4+ Re5 10.Dc3+ Re4 11.Cc2



On April 24, 2004 at 01:04:55, Dann Corbit wrote:

>On April 24, 2004 at 00:29:54, Lei , Shiann-Tzong wrote:
>
>>[D]3R4/1p2kp2/p1b1nN2/6p1/8/6BP/2r1qPPK/Q7 w KQkq - 0 1
>>
>> Rd7+
>
>Crafty output:
>
>White(1): go
>              clearing hash tables
>              time surplus   0.00  time limit 16:39 (16:39)
>              depth   time  score   variation (1)
>                6     0.24   0.28   1. Rb8 Rb2 2. Ng8+ Kd7 3. Qa5 Rd2 4.
>                                    Qf5 Qh5
>                6->   0.57   0.28   1. Rb8 Rb2 2. Ng8+ Kd7 3. Qa5 Rd2 4.
>                                    Qf5 Qh5
>                7     0.83     +1   1. Rb8!!
>                7     0.99   0.66   1. Rb8 Rb2 2. Ng8+ Kd7 3. Qa3 Nf4 4.
>                                    Qf8 Bd5 5. Qc8+ Kd6 6. Nf6
>                7->   1.76   0.66   1. Rb8 Rb2 2. Ng8+ Kd7 3. Qa3 Nf4 4.
>                                    Qf8 Bd5 5. Qc8+ Kd6 6. Nf6
>                8     2.77     +1   1. Rb8!!
>                8     3.56   1.18   1. Rb8 Rb2 2. Ng8+ Kd7 3. Qa3 Nf4 4.
>                                    Qf8 Be4 5. Qxf7+ Kc6 6. Bxf4 gxf4 7.
>                                    Qxf4
>                8->   5.33   1.18   1. Rb8 Rb2 2. Ng8+ Kd7 3. Qa3 Nf4 4.
>                                    Qf8 Be4 5. Qxf7+ Kc6 6. Bxf4 gxf4 7.
>                                    Qxf4
>                9     9.30     +1   1. Rb8!!
>                9    12.44   1.75   1. Rb8 Rb2 2. Ng8+ Kd7 3. Qa3 Nf4 4.
>                                    Qf8 Qe5 5. Qd8+ Ke6 6. Qe7+ Kf5 7.
>                                    Qxf7+ Ke4 8. Rd8
>                9->  17.49   1.75   1. Rb8 Rb2 2. Ng8+ Kd7 3. Qa3 Nf4 4.
>                                    Qf8 Qe5 5. Qd8+ Ke6 6. Qe7+ Kf5 7.
>                                    Qxf7+ Ke4 8. Rd8
>               10    27.38   1.83   1. Rb8 Rb2 2. Ng8+ Kd7 3. Qa3 Nf4 4.
>                                    Qa5 Nd5 5. Qd8+ Ke6 6. Qd6+ Kf5 7.
>                                    Nh6+ Ke4 8. Nxf7 Kf5 9. Nh6+ Ke4 10.
>                                    Qg6+ Kd4 11. Nf5+ Kc5 12. Qxg5
>               10    43.23     +1   1. Rd7+!!
>               10    47.20   2.15   1. Rd7+ Bxd7 2. Nd5+ Ke8 3. Qf6 Ng7
>                                    4. Be5 Qxe5+ 5. Qxe5+ Be6 6. Ne3 f6
>                                    7. Qb8+ Rc8 8. Qxb7 Kf8 9. Qxa6
>               10->  57.37   2.15   1. Rd7+ Bxd7 2. Nd5+ Ke8 3. Qf6 Ng7
>                                    4. Be5 Qxe5+ 5. Qxe5+ Be6 6. Ne3 f6
>                                    7. Qb8+ Rc8 8. Qxb7 Kf8 9. Qxa6
>               11     1:06   2.35   1. Rd7+ Bxd7 2. Nd5+ Ke8 3. Qf6 Ng7
>                                    4. Be5 Qxe5+ 5. Qxe5+ Be6 6. Qb8+ Kd7
>                                    7. Qxb7+ Kd6 8. Qxa6+ Rc6 9. Nb6 Kc7
>                                    10. Qa1 Rxb6 11. Qxg7
>               11->   1:35   2.35   1. Rd7+ Bxd7 2. Nd5+ Ke8 3. Qf6 Ng7
>                                    4. Be5 Qxe5+ 5. Qxe5+ Be6 6. Qb8+ Kd7
>                                    7. Qxb7+ Kd6 8. Qxa6+ Rc6 9. Nb6 Kc7
>                                    10. Qa1 Rxb6 11. Qxg7
>               12     2:02   2.41   1. Rd7+ Bxd7 2. Nd5+ Ke8 3. Qf6 Ng7
>                                    4. Be5 Qxe5+ 5. Qxe5+ Be6 6. Qb8+ Kd7
>                                    7. Qxb7+ Kd6 8. Qxa6+ Rc6 9. Nb6 Nf5
>                                    10. Qd3+ Ke5 11. Qb5+ Kd6
>               12->   8:15   2.41   1. Rd7+ Bxd7 2. Nd5+ Ke8 3. Qf6 Ng7
>                                    4. Be5 Qxe5+ 5. Qxe5+ Be6 6. Qb8+ Kd7
>                                    7. Qxb7+ Kd6 8. Qxa6+ Rc6 9. Nb6 Nf5
>                                    10. Qd3+ Ke5 11. Qb5+ Kd6
>               13    10:02   2.41   1. Rd7+ Bxd7 2. Nd5+ Ke8 3. Qf6 Ng7
>                                    4. Be5 Qxe5+ 5. Qxe5+ Be6 6. Qb8+ Kd7
>                                    7. Qxb7+ Kd6 8. Qxa6+ Rc6 9. Nb6 Nf5
>                                    10. Qd3+ Ke5 11. Qb5+ Kd6 12. Kg1
>              time=16:39  cpu=93%  mat=-1  n=449634292  fh=94%  nps=450K
>              ext-> chk=36087530 cap=836898 pp=3264 1rep=1970007 mate=182930
>              predicted=0  nodes=449634292  evals=120052957  50move=0
>              endgame tablebase-> probes=0  hits=0



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