Only BUP wins

David Dahlem · Post by **David Dahlem** » Fri Mar 19, 2010 4:40 pm

[D]4Q3/Pq4pk/5p1p/5P1K/6PP/8/8/8 w - - 0 1

From http://en.wikipedia.org/wiki/Promotion

In the 1972 game between Aron Reshko and Oleg Kaminsky, promotion to a queen or rook would allow 1...Qf7+!! 2.Qxf7 stalemate. White could promote to a knight, but that would not be sufficient to win.

The full game -

[Event "?"]
[Site "?"]
[Date "1972.??.??"]
[Round "?"]
[White "Reshko Aron G"]
[Black "Kaminsky Oleg M"]
[Result "1-0"]
[ECO "A29"]
[BlackElo "2333"]
[PlyCount "141"]
[EventDate "1972.??.??"]

1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nb6 7. O-O Be7 8. a4 a5 9. b3 O-O 10. Bb2 Be6 11. Nb5 Bf6 12. Rc1 Qc8 13. d4 Rd8 14. e4 exd4 15. e5 Be7 16. Nfxd4 Nxd4 17. Bxd4 c6 18. Qe2 Nd5 19. Bb2 Nc7 20. Nd4 Bd5 21. f4 Bxg2 22. Kxg2 Bb4 23. f5 c5 24. e6 cxd4 25. Qe5 Bc3 26. Bxc3 f6 27. Qe2 dxc3 28. Rxc3 Rd6 29. Rd1 Rc6 30. Rcd3 Ne8 31. Qh5 Rc7 32. Rd7 Rxd7 33. exd7 Qd8 34. Qf3 Nc7 35. Qxb7 Kf8 36. Rc1 Qxd7 37. Rxc7 Qd2+ 38. Kf3 Qd1+ 39. Kf4 Qd4+ 40. Qe4 Qd6+ 41. Kg4 Re8 42. Qc4 Re4+ 43. Qxe4 Qxc7 44. b4 axb4 45. Qxb4+ Kg8 46. a5 h6 47. a6 Kh7 48. Qd4 Qa5 49. a7 Qa6 50. Kh4 Qa2 51. h3 Qa5 52. Qd7 Qb4+ 53. Kh5 Qa3 54. Kg4 Qe3 55. h4 Qe4+ 56. Kh5 Qf3+ 57. g4 Qe4 58. Qf7 Qc6 59. Qe7 Qd5 60. Qe8 Qb7 61. a8=B Qb3 62. Qd7 Qg8 63. Bd5 Qf8 64. Bf7 Kh8 65. Qe8 Qxe8 66. Bxe8 Kh7 67. Bf7 Kh8 68. Kg6 h5 69. Kxh5 Kh7 70. Be8 Kg8 71. Kg6 1-0

zullil · Post by **zullil** » Fri Mar 19, 2010 5:45 pm

David Dahlem wrote:[D]4Q3/Pq4pk/5p1p/5P1K/6PP/8/8/8 w - - 0 1

From http://en.wikipedia.org/wiki/Promotion

In the 1972 game between Aron Reshko and Oleg Kaminsky, promotion to a queen or rook would allow 1...Qf7+!! 2.Qxf7 stalemate. White could promote to a knight, but that would not be sufficient to win.

Crafty succeeds:

Code: Select all

Crafty v23.2 &#40;8 cpus&#41;

White&#40;1&#41;&#58; setboard 4Q3/Pq4pk/5p1p/5P1K/6PP/8/8/8 w - - 0 1
White&#40;1&#41;&#58; st 300
search time set to 300.00.
White&#40;1&#41;&#58; display stats
display statistics at end of each search.
White&#40;1&#41;&#58; display

       +---+---+---+---+---+---+---+---+
    8  |   | . |   | . |-Q-| . |   | . |
       +---+---+---+---+---+---+---+---+
    7  |-P-|<Q>| . |   | . |   |<P>|<K>|
       +---+---+---+---+---+---+---+---+
    6  |   | . |   | . |   |<P>|   |<P>|
       +---+---+---+---+---+---+---+---+
    5  | . |   | . |   | . |-P-| . |-K-|
       +---+---+---+---+---+---+---+---+
    4  |   | . |   | . |   | . |-P-|-P-|
       +---+---+---+---+---+---+---+---+
    3  | . |   | . |   | . |   | . |   |
       +---+---+---+---+---+---+---+---+
    2  |   | . |   | . |   | . |   | . |
       +---+---+---+---+---+---+---+---+
    1  | . |   | . |   | . |   | . |   |
       +---+---+---+---+---+---+---+---+
         a   b   c   d   e   f   g   h

White&#40;1&#41;&#58; go
              time limit 5&#58;00 (+0.00&#41; &#40;5&#58;00&#41;
              depth   time  score   variation &#40;1&#41;
starting thread 1
starting thread 2
starting thread 3
starting thread 4
starting thread 5
starting thread 6
starting thread 7
               12     0.11   5.07   1. a8=B Qb3 2. Bg2 Qd3 3. Bc6 Qc4 4.
                                    Bd7 Qg8 5. Qxg8+ Kxg8 6. Be6+ Kh7 7.
                                    Bc8 Kg8 8. Bd7 Kf7 <HT>
               12->   0.14   5.07   1. a8=B Qb3 2. Bg2 Qd3 3. Bc6 Qc4 4.
                                    Bd7 Qg8 5. Qxg8+ Kxg8 6. Be6+ Kh7 7.
                                    Bc8 Kg8 8. Bd7 Kf7 <HT>
               13     0.23     +1   1. a8=B!                         
               13     0.25   6.42   1. a8=B Qb3 2. Bc6 Qc4 3. Bd7 Qg8 4.
                                    Qxg8+ Kxg8 5. Kg6 Kh8 6. Be6 h5 7.
                                    Kxh5 Kh7
               13->   0.30   6.42   1. a8=B Qb3 2. Bc6 Qc4 3. Bd7 Qg8 4.
                                    Qxg8+ Kxg8 5. Kg6 Kh8 6. Be6 h5 7.
                                    Kxh5 Kh7
               14     0.46   6.41   1. a8=B Qb3 2. Bc6 Qc4 3. Bd7 Qg8 4.
                                    Qxg8+ Kxg8 5. Be6+ Kh8 6. Kg6 h5 7.
                                    Kxh5 Kh7 8. Bc8 Kh8
               14->   0.70   6.41   1. a8=B Qb3 2. Bc6 Qc4 3. Bd7 Qg8 4.
                                    Qxg8+ Kxg8 5. Be6+ Kh8 6. Kg6 h5 7.
                                    Kxh5 Kh7 8. Bc8 Kh8
               15     1.23   6.43   1. a8=B Qb3 2. Bc6 Qc4 3. Bd7 Qg8 4.
                                    Qxg8+ Kxg8 5. Be6+ Kh8 6. Kg6 h5 7.
                                    Kxh5 Kh7 8. g5 Kh8 9. gxf6
               15->   2.02   6.43   1. a8=B Qb3 2. Bc6 Qc4 3. Bd7 Qg8 4.
                                    Qxg8+ Kxg8 5. Be6+ Kh8 6. Kg6 h5 7.
                                    Kxh5 Kh7 8. g5 Kh8 9. gxf6
               16     3.63   6.61   1. a8=B Qb3 2. Bc6 Qc4 3. Bd7 Qg8 4.
                                    Qxg8+ Kxg8 5. Be6+ Kh8 6. Kg6 h5 7.
                                    Kxh5 Kh7 8. g5 Kh8 9. gxf6 gxf6
               16->   5.18   6.61   1. a8=B Qb3 2. Bc6 Qc4 3. Bd7 Qg8 4.
                                    Qxg8+ Kxg8 5. Be6+ Kh8 6. Kg6 h5 7.
                                    Kxh5 Kh7 8. g5 Kh8 9. gxf6 gxf6
               17     7.51   6.65   1. a8=B Qb3 2. Bc6 Qc4 3. Bd7 Qg8 4.
                                    Qxg8+ Kxg8 5. Kg6 Kh8 6. Be6 h5 7.
                                    Kxh5 Kh7 8. Bc8 Kg8 <HT>
               17->  10.77   6.65   1. a8=B Qb3 2. Bc6 Qc4 3. Bd7 Qg8 4.
                                    Qxg8+ Kxg8 5. Kg6 Kh8 6. Be6 h5 7.
                                    Kxh5 Kh7 8. Bc8 Kg8 <HT> &#40;s=3&#41;
               18    15.19   6.79   1. a8=B Qb3 2. Bc6 Qc4 3. Bd7 Qg8 4.
                                    Qxg8+ Kxg8 5. Kg6 Kh8 6. Bc6 Kg8 7.
                                    g5 fxg5 8. hxg5 h5 9. Bd5+ Kf8 10.
                                    Kxh5 Ke7 &#40;s=2&#41;
               18->  20.89   6.79   1. a8=B Qb3 2. Bc6 Qc4 3. Bd7 Qg8 4.
                                    Qxg8+ Kxg8 5. Kg6 Kh8 6. Bc6 Kg8 7.
                                    g5 fxg5 8. hxg5 h5 9. Bd5+ Kf8 10.
                                    Kxh5 Ke7 &#40;s=3&#41;
               19    21.99     +1   1. a8=B!                         
               19    31.12   7.79   1. a8=B Qb3 2. Bc6 Qc4 3. Bd7 Qg8 4.
                                    Qxg8+ Kxg8 5. Kg6 Kh8 6. g5 Kg8 7.
                                    gxf6 gxf6 8. Be6+ Kf8 9. Kxf6 Ke8 10.
                                    Kg7 h5 11. Bf7+ Kd7 12. Bxh5 &#40;s=2&#41;
               19->  39.48   7.79   1. a8=B Qb3 2. Bc6 Qc4 3. Bd7 Qg8 4.
                                    Qxg8+ Kxg8 5. Kg6 Kh8 6. g5 Kg8 7.
                                    gxf6 gxf6 8. Be6+ Kf8 9. Kxf6 Ke8 10.
                                    Kg7 h5 11. Bf7+ Kd7 12. Bxh5 &#40;s=2&#41;
               20    40.56     +1   1. a8=B!                         
               20    41.25     +3   1. a8=B!                         
               20    42.21     +M   1. a8=B!                         
               20    59.19  28.40   1. a8=B Qb3 2. Bc6 Qc4 3. Bd7 Qg8 4.
                                    g5 Qxe8+ 5. Bxe8 Kg8 6. gxf6 Kf8 7.
                                    fxg7+ Ke7 8. f6+ Kd6 9. f7 Kd5 10.
                                    f8=Q Kd4 11. g8=Q Ke3 12. Qg3+ Kd2
                                    13. Qff4+ Kd1 14. Kxh6
               20->   1&#58;14  28.40   1. a8=B Qb3 2. Bc6 Qc4 3. Bd7 Qg8 4.
                                    g5 Qxe8+ 5. Bxe8 Kg8 6. gxf6 Kf8 7.
                                    fxg7+ Ke7 8. f6+ Kd6 9. f7 Kd5 10.
                                    f8=Q Kd4 11. g8=Q Ke3 12. Qg3+ Kd2
                                    13. Qff4+ Kd1 14. Kxh6
               21     1&#58;16     +1   1. a8=B!                         
               21     1&#58;16     +3   1. a8=B!                         
               21     1&#58;16     +M   1. a8=B!                         
               21     1&#58;36  Mat22   1. a8=B Qb3 2. Bc6 Qc4 3. Bd7 Qg8 4.
                                    g5 Qxe8+ 5. Bxe8 fxg5 6. hxg5 hxg5
                                    7. Kxg5 <EGTB>         
               21->   2&#58;04  Mat22   1. a8=B Qb3 2. Bc6 Qc4 3. Bd7 Qg8 4.
                                    g5 Qxe8+ 5. Bxe8 fxg5 6. hxg5 hxg5
                                    7. Kxg5 <EGTB>          &#40;s=2&#41;
               22     2&#58;41  Mat22   1. a8=B Qb3 2. Bc6 Qc4 3. Bd7 Qg8 4.
                                    g5 Qxe8+ 5. Bxe8 fxg5 6. hxg5 hxg5
                                    7. Kxg5 <EGTB>         
               22->   3&#58;25  Mat22   1. a8=B Qb3 2. Bc6 Qc4 3. Bd7 Qg8 4.
                                    g5 Qxe8+ 5. Bxe8 fxg5 6. hxg5 hxg5
                                    7. Kxg5 <EGTB>         
               23     4&#58;25  Mat12   1. a8=B Qb3 2. Bc6 Qc4 3. Bd7 Qg8 4.
                                    Qe7 Qa2 5. Be8 Qc4 6. Bg6+ Kh8 7. Bf7
                                    g6+ 8. fxg6 Qxg4+ 9. Kxg4 h5+ 10. Kxh5
                                    Kg7 11. Bc4+ Kh8 12. Qxf6#
              time=5&#58;00  mat=1  n=501047857  fh=95%  nps=1.7M        
              extensions=50.9M qchecks=56.8M reduced=41.6M pruned=175.5M
              predicted=0  evals=1.5M  50move=0  EGTBprobes=513K  hits=513K
              SMP->  splits=128227  aborts=9782  data=49/1024  elap=5&#58;00
terminating SMP processes.

mate in 12 moves.

White&#40;1&#41;&#58; a8=B
              time used&#58;   5&#58;00

Jouni · Post by **Jouni** » Fri Mar 19, 2010 6:19 pm

The fastest is: no prizes for quessing

Analysis by spark-0.3a 2CPU:

1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.Qe7 Qa2 5.Be8 Qc4 6.Bg6+ Kh8 7.Bf7 g6+ 8.fxg6 Qxg4+ 9.Kxg4 f5+ 10.Kxf5 Kg7 11.Ba2+ Kh8 12.Qh7#
+- (#12) Depth: 23/48 00:00:20 78236kN

Jouni

zullil · Post by **zullil** » Fri Mar 19, 2010 6:32 pm

David Dahlem wrote:[D]4Q3/Pq4pk/5p1p/5P1K/6PP/8/8/8 w - - 0 1

Stockfish-1.6.3 (8 threads) succeeds, but not so quickly:

Code: Select all

Searching&#58; 4Q3/Pq4pk/5p1p/5P1K/6PP/8/8/8 w - -
infinite&#58; 1 ponder&#58; 0 time&#58; 0 increment&#58; 0 moves to go&#58; 0
 2    +14.46   00&#58;00      202 a8=Q Qxa8 Qxa8 g5 fxg6+ Kg7 
 3    +18.18   00&#58;00      574 a8=Q Qxa8 Qxa8 g5 fxg6+ Kg7 Qb7+ Kf8 Kxh6 
 4     +0.00   00&#58;00      980 a8=Q Qf7+ Qxf7 
 4     +4.85   00&#58;00     1444 Qg6+ Kg8 Qe8+ Kh7 a8=B Qb3 Be4 
 5     +4.89   00&#58;00     2474 Qg6+ Kg8 Qe8+ Kh7 a8=B Qb3 Be4 Qc4 
 6     +4.93   00&#58;00     3727 Qg6+ Kg8 Qe8+ Kh7 a8=B Qb3 Be4 Qc4 Qe6 
 6     +4.97   00&#58;00     5335 a8=B Qb3 Be4 Qc4 Qe6 Qd4 Bd5 
 7  >  +5.17   00&#58;00     7572 a8=B Qb3 Be4 Qc4 Qe6 Qd4 Bd5 
 8     +5.29   00&#58;00    12170 a8=B Qb3 Be4 Qc4 Qe6 Qb4 Bd5 Qb8 g5 Qd8 g6+ Kh8 
 9     +5.29   00&#58;00    43553 a8=B Qb3 Be4 Qc4 Qe6 Qb4 Bd5 Qb8 Qe4 Qb5 g5 hxg5 
                              hxg5 fxg5 Kxg5 
10     +5.29   00&#58;00    56449 a8=B Qb3 Be4 Qc4 Qe6 Qb4 Bd5 Qb8 Qe4 Qb5 g5 hxg5 
                              hxg5 fxg5 Kxg5 
11  >  +5.49   00&#58;00   131127 a8=B Qb3 Bc6 Qc4 Bd7 Qd4 Be6 
12  >  +6.30   00&#58;00   142187 a8=B Qb3 Bc6 Qc4 Bd7 Qg8 Qxg8+ Kxg8 Be6+ Kh7 Bf7 
13     +6.79   00&#58;00   181968 a8=B Qb3 Bc6 Qc4 Bd7 Qg8 Qxg8+ Kxg8 Be6+ Kh7 Bf7 
                              Kh8 Kg6 h5 Kxh5 Kh7 g5 fxg5 hxg5 Kh8 
14  >  +8.85   00&#58;00   230671 a8=B Qb3 Bc6 Qc4 Bd7 Qg8 Qxg8+ Kxg8 Kg6 Kh8 Be6 
                              h5 g5 fxg5 hxg5 h4 f6 gxf6 gxf6 h3 f7 
15     +9.82   00&#58;00   295940 a8=B Qb3 Bc6 Qg8 Qxg8+ Kxg8 Bd5+ Kf8 Kg6 Ke7 Kxg7 
                              Kd6 Be6 Ke5 Kxh6 Kf4 g5 Ke5 g6 
16  > +16.12   00&#58;00   394518 a8=B Qb3 Bc6 Qg8 Qxg8+ Kxg8 Bd5+ Kf8 Kg6 Ke7 Kxg7 
                              Kd6 Be6 Ke5 Kxh6 Kf4 g5 Ke5 g6 
17  > +62.55   00&#58;00   564937 a8=B Qb3 Bc6 Qg8 Qxg8+ Kxg8 Bd5+ Kf8 Kg6 Ke7 Kxg7 
                              Kd8 Kxf6 Kc7 Kg7 h5 gxh5 Kb6 h6 Ka5 h7 
18    +90.30   00&#58;00   885164 a8=B Qb3 Bc6 Qg8 Qxg8+ Kxg8 Bd5+ Kf8 Kg6 Ke7 Kxg7 
                              Kd6 Kxf6 Kxd5 Kg7 Ke5 f6 Kf4 Kxh6 Kxg4 h5 Kf4 f7 
                              Ke5 f8=Q Kd4 Qb4+ Kd5 Kg6 
19    +90.20   00&#58;00    1046k a8=B Qb3 Bc6 Qg8 Qxg8+ Kxg8 Bd5+ Kf8 Kg6 Ke7 Kxg7 
                              Kd6 Kxf6 Kxd5 Kg7 Ke5 f6 Kf4 Kxh6 Kxg4 h5 Kf4 f7 
                              Ke5 f8=Q Kd4 Qb4+ Kd5 Kg6 
20    +90.30   00&#58;00    1310k a8=B Qb3 Bc6 Qg8 Qxg8+ Kxg8 Bd5+ Kf8 Kg6 Ke7 Kxg7 
                              Kd6 Kxf6 Kxd5 Kg7 Ke5 f6 Kf4 Kxh6 Kxg4 h5 Kf4 f7 
                              Ke5 f8=Q Kd4 Kg6 Kc4 
21    +90.30   00&#58;01    1789k a8=B Qb3 Bc6 Qg8 Qxg8+ Kxg8 Bd5+ Kf8 Kg6 Ke7 Kxg7 
                              Kd6 Kxf6 Kxd5 Kg7 Ke5 f6 Kf4 Kxh6 Kxg4 h5 Kf4 f7 
                              Ke5 f8=Q Kd4 Qb4+ Kd5 Kg6 
22    +91.65   00&#58;01    2728k a8=B Qb3 Bc6 Qg8 Qxg8+ Kxg8 Bd5+ Kf8 Kg6 Ke7 Kxg7 
                              Kd6 Kxf6 Kxd5 g5 h5 g6 Kd6 g7 Kc7 Kg6 Kd6 Kxh5 
                              Ke5 Kg6 Kd5 g8=Q+ Kc5 Kf6 
23    +95.97   00&#58;01    6068k a8=B Qb3 Bc6 Qg8 Qxg8+ Kxg8 Bd5+ Kf8 Kg6 Ke7 Kxg7 
                              Kd7 Be6+ Kd6 Kxf6 Kc6 Kg7 Kc5 f6 Kb4 f7 Kc3 Kxh6 
                              Kd3 f8=Q Kd2 Qc5 Ke2 Kg5 Kd3 Bf5+ Kd2 
24    +95.97   00&#58;02   10957k a8=B Qb3 Bc6 Qc4 Bd7 Qg8 Qxg8+ Kxg8 Kg6 Kf8 Be6 
                              Ke7 Kxg7 Kd6 Kxf6 Kc6 Kg7 Kc5 f6 Kb4 f7 Kc3 Kxh6 
                              Kd3 f8=Q Kd2 Qc5 Ke2 Kg5 Kd3 Bf5+ Kd2 
25    +95.97   00&#58;02   14958k a8=B Qb3 Bc6 Qc4 Bd7 Qg8 Qxg8+ Kxg8 Kg6 Kf8 Be6 
                              Ke7 Kxg7 Kd6 Kxf6 Kc6 Kg7 Kc5 f6 Kb4 f7 Kc3 Kxh6 
                              Kd3 f8=Q Kd2 Qc5 Ke2 Kg5 Kd3 Bf5+ Kd2 
26    +95.97   00&#58;03   21170k a8=B Qb3 Bc6 Qc4 Bd7 Qg8 Qxg8+ Kxg8 Kg6 Kf8 Be6 
                              Ke7 Kxg7 Kd6 Kxf6 Kc6 Kg7 Kc5 f6 Kb4 f7 Kc3 Kxh6 
                              Kd3 f8=Q Kd2 Qc5 Ke2 Kg5 Kd3 Bf5+ Kd2 
27   +102.88   00&#58;05   34904k a8=B Qb3 Bc6 Qc4 Bd7 Qg8 Qxg8+ Kxg8 Kg6 Kf8 Be6 
                              Ke7 Kxg7 Kd6 Kxf6 Kc6 Kg7 Kc5 f6 Kb4 f7 Kc5 f8=Q+ 
                              Kd4 Kxh6 Kc3 Bd5 Kd4 g5 Kxd5 g6 Kc4 g7 Kb5 g8=Q 
28   +107.40   00&#58;09   61617k a8=B Qb3 Bc6 Qc4 Bd7 Qg8 Qxg8+ Kxg8 Kg6 Kf8 Be6 
                              Ke7 Kxg7 Kd6 Kxf6 Kc6 Ke7 Kc5 f6 Kb4 f7 Kc5 f8=Q 
                              Kd4 Qxh6 Ke4 g5 Kd3 g6 Ke2 g7 Kd3 g8=Q Kd4 Qg2 
                              Kc5 
29   +107.40   00&#58;13  103405k a8=B Qb3 Bc6 Qc4 Bd7 Qg8 Qxg8+ Kxg8 Kg6 Kf8 Be6 
                              Ke7 Kxg7 Ke8 Kxf6 Kd8 Kg7 Ke7 f6+ Kd6 f7 Kc5 Kxh6 
                              Kb4 f8=Q+ Kb5 Bd5 Kb6 Qb4+ Kc7 Qc5+ Kd7 g5 Kd8 g6 
                              Kd7 g7 Ke8 Qc6+ Ke7 g8=Q 
30       #12   13&#58;33    5342M a8=B Qb3 Bc6 Qc4 Bd7 Qg8 Qe7 Qd5 Be8 Qc4 Bg6+ Kh8 
                              Bf7 g6+ fxg6 Qxg4+ Kxg4 f5+ Kxf5 Kg7 Bd5+ Kh8 
                              Qf6# 
31       #12   36&#58;11   13597M a8=B Qb3 Bc6 Qc4 Bd7 Qg8 Qe7 Qd5 Be8 Qc4 Bg6+ Kh8 
                              Bf7 g6+ fxg6 Qxg4+ Kxg4 f5+ Kxf5 Kg7 Bd5+ Kh8 
                              Qf6# 
Nodes&#58; 15998690948
Nodes/second&#58; 6301356
Best move&#58; a8=B
Ponder move&#58; Qb3

alpha123 · Post by **alpha123** » Fri Mar 19, 2010 7:41 pm

Rybka seems to be having a little trouble with this one:

New game - Rybka 3 1-cpu
4Q3/Pq4pk/5p1p/5P1K/6PP/8/8/8 w - - 0 1

Analysis by Rybka 3 1-cpu:

1.a8N Qa7[] 2.g5 hxg5[] 3.hxg5 fxg5 4.Qg6+ Kg8 5.Qc6 Kh7[] 6.Qh1 Qf2[] 7.Kxg5+ Kg8[] 8.Qd5+ Kh7[] 9.Kg4 Qg1+[] 10.Kf4 Qc1+ 11.Ke5 Qc3+ 12.Ke4 Qf6 13.Qa5 g6 14.Qc7+ Kh6 15.Qf4+ Kh7 16.Nc7
= (0.21) Depth: 17 00:00:00 0kN
1.a8N Qa7[] 2.g5 hxg5[] 3.hxg5 fxg5 4.Qg6+ Kg8 5.Qc6 Kh7[] 6.Qh1 Qf2[] 7.Kxg5+ Kg8[] 8.Qd5+ Kh7[] 9.Kg4 Qg1+[] 10.Kf4 Qc1+ 11.Ke5 Qc3+ 12.Ke4 Qf6 13.Qa5 g6 14.Qc7+ Kh6 15.Qf4+ Kh7 16.Nc7
= (0.21) Depth: 18 00:00:00 0kN
1.a8N Qa7[] 2.g5 hxg5[] 3.hxg5 fxg5 4.Qg6+ Kg8 5.Qc6 Kh7[] 6.Qh1 Qf2[] 7.Kxg5+ Kg8[] 8.Qd5+ Kh7[] 9.Kg4 Qg1+[] 10.Kf4 Qc1+ 11.Ke5 Qc3+ 12.Ke4 Qf6 13.Qa5 g6 14.Qc7+ Kh6 15.Qf4+ Kh7 16.Nc7
= (0.21) Depth: 19 00:00:02 237kN, tb=80
1.a8N Qa7[] 2.g5 hxg5[] 3.hxg5 fxg5 4.Qg6+ Kg8 5.Qc6 Kh7[] 6.Qh1 Qf2[] 7.Kxg5+ Kg8[] 8.Qd5+ Kh7[] 9.Kg4 Qg1+[] 10.Kf4 Qc1+ 11.Ke5 Qc3+ 12.Ke4 Qf6 13.Qa5 g6 14.Qc7+ Kh6 15.Qf4+ Kh7 16.Nc7
= (0.21) Depth: 20 00:00:15 1236kN, tb=569
1.a8N Qa7[] 2.g5 hxg5[] 3.hxg5 fxg5 4.Qg6+ Kg8 5.Qc6 Kh7[] 6.Qh1 Qf2[] 7.Kxg5+ Kg8[] 8.Qd5+ Kh7[] 9.Kg4 Qg1+[] 10.Kf4 Qc1+ 11.Ke5 Qc3+ 12.Ke4 Qf6 13.Qa5 g6 14.Qc7+ Kh6 15.Qf4+ Kh7 16.Nc7
= (0.21) Depth: 21 00:00:35 2879kN, tb=1336
1.a8N Qa7[] 2.g5 hxg5[] 3.hxg5 fxg5 4.Qg6+ Kg8 5.Qc6 Kh7[] 6.Qh1 Qf2[] 7.Kxg5+ Kg8[] 8.Qd5+ Kh7[] 9.Kg4 Qg1+[] 10.Kf4 Qc1+ 11.Ke5 Qc3+ 12.Ke4 Qf6 13.Qa5 g6 14.Qc7+ Kh6 15.Qf4+ Kh7 16.Nc7
= (0.21) Depth: 22 00:01:04 5250kN, tb=2565
1.a8N Qa7[] 2.g5 hxg5[] 3.hxg5 fxg5 4.Qg6+ Kg8 5.Qc6 Kh7[] 6.Qh1 Qf2[] 7.Kxg5+ Kg8[] 8.Qd5+ Kh7[] 9.Kg4 Qg1+[] 10.Kf4 Qc1+ 11.Ke5 Qc3+ 12.Ke4 Qf6 13.Qa5 g6 14.Qc7+ Kh6 15.Qf4+ Kh7 16.Nc7
= (0.21) Depth: 23 00:01:51 9207kN, tb=4662

I'm cruel

.

Peter

David Dahlem · Post by **David Dahlem** » Fri Mar 19, 2010 7:55 pm

alpha123 wrote:Rybka seems to be having a little trouble with this one:

Now that you've shown Rybka has a problem, i'm sure Vas will fix it.

I'm cruel also.

Dann Corbit · Post by **Dann Corbit** » Fri Mar 19, 2010 8:56 pm

For each of the following positions, only underpromotion to bishop results in the shortest possible checkmate:

Code: Select all

1B4B1/2P1kP2/1K4R1/8/8/8/8/8 w - - acn 22; acs 0; bm c8=B; ce 32764; dm 2; pv c8=B Kf8 Bd6#;
1B6/PK3B2/8/6PR/6kN/8/8/1b6 w - - acn 3887; acs 0; bm a8=B; ce 32760; dm 4; pv a8=B Be4+ Ka7 Bf5 Bf3+ Kh3 Nxf5#;
1K1B4/4rP2/1N1Nk1P1/1p2p2P/1p2p3/1P2P3/6B1/8 w - - acn 289; acs 0; bm f8=B; ce 32762; dm 3; pv f8=B Rb7+ Nxb7 Kf5 Bh3#;
1K4N1/3kBP2/8/3B4/8/8/8/8 w - - acn 56; acs 0; bm f8=B; ce 32764; dm 2; pv f8=B Ke8 Nf6#;
1R1K2R1/3P1k1P/8/3Pp3/4B3/1P6/8/8 w - - acn 63; acs 0; bm h8=B; ce 32764; dm 2; pv h8=B Kxg8 Ke7#;
1R2K1R1/P1k1P3/8/3pP3/3B4/6P1/8/8 w - - acn 63; acs 0; bm a8=B; ce 32764; dm 2; pv a8=B Kxb8 Kd7#;
1R3n2/Q3P1bk/8/6P1/5N2/8/8/1K6 w - - acn 176; acs 0; bm exf8=B; ce 32764; dm 2; pv exf8=B Kh8 Qxg7#;
1R6/1P1P3p/2kn3R/3N1P2/P7/3N2p1/6Bp/7K w - - acn 100; acs 0; bm d8=B; ce 32764; dm 2; pv d8=B Kd7 Nf6#;
1b6/1KP5/N1P5/pk6/p6R/P7/4P3/8 w - - acn 988; acs 0; bm c8=B; ce 32762; dm 3; pv c8=B Ba7 Bf5 Bb8 Bd3#;
1q6/P2N4/5p2/2p2p2/2Pk1b1R/6P1/PN1P1P1K/Bb3R1B w - - acn 1739; acs 0; bm axb8=B; ce 32762; dm 3; pv axb8=B Bc2 Ba7 Bd3 Bxc5#;
1r4bk/2P2P2/7K/8/8/6N1/8/8 w - - acn 20551; acs 0; bm cxb8=B; ce 32756; dm 6; pv cxb8=B Bxf7 Ne4 Be6 Nf6 Bf7 Bd6 Bg8 Bf8 Bf7 Bg7#;
1r6/4PP1k/8/6K1/2P5/8/8/Q7 w - - acn 560; acs 0; bm f8=B; ce 32762; dm 3; pv f8=B Rb5+ cxb5 Kg8 Qg7#;
2B5/1P5R/2k5/8/1PK5/8/8/8 w - - acn 16; acs 0; bm b8=B; ce 32764; dm 2; pv b8=B Kb6 Rh6#;
2K2B2/2P1P3/8/3k4/8/2Q2R2/8/8 w - - acn 83; acs 0; bm e8=B; ce 32764; dm 2; pv e8=B Ke6 Bf7#;
2R5/4P3/3k1P2/8/4K3/8/8/8 w - - acn 10; acs 0; bm e8=B; ce 32764; dm 2; pv e8=B Ke6 Rc6#;
2kB4/1R3P2/1PK5/8/8/8/8/8 w - - acn 36; acs 0; bm f8=B; ce 32764; dm 2; pv f8=B Kxd8 Rb8#;
2n3R1/kb1P3Q/8/1P6/2N5/8/8/6K1 w - - acn 143; acs 0; bm dxc8=B; ce 32764; dm 2; pv dxc8=B Ka8 Qxb7#;
2n5/1P3B2/8/8/8/8/Np2p3/bk2K3 w - - acn 38; acs 0; bm bxc8=B; ce 32764; dm 2; pv bxc8=B Kc2 Bf5#;
2r5/k2P4/8/1Q6/8/8/8/1K6 w - - acn 41; acs 0; bm dxc8=B; ce 32764; dm 2; pv dxc8=B Ka8 Qb7#;
3B4/kBP5/8/N1p5/2K5/8/8/8 w - - acn 46; acs 0; bm c8=B; ce 32764; dm 2; pv c8=B Kb8 Nc6#;
3K4/2P3N1/3k4/7R/1PP5/8/8/8 w - - acn 15; acs 0; bm c8=B; ce 32764; dm 2; pv c8=B Kc6 Rh6#;
3K4/2P5/3k1N2/8/3P4/4R3/1P6/8 w - - acn 322; acs 0; bm c8=B; ce 32762; dm 3; pv c8=B Kc6 Rb3 Kd6 Rb6#;
3K4/2P5/8/3kP3/3p4/1R1N1P2/8/8 w - - acn 16; acs 0; bm c8=B; ce 32764; dm 2; pv c8=B Kc4 Be6#;
3K4/2P5/Pp6/1p1kP3/1P2pP2/2PpP3/3P4/8 w - - acn 12; acs 0; bm c8=B; ce 32764; dm 2; pv c8=B Kc4 Be6#;
3K4/2p2Pp1/1NP3P1/pP1P1p2/3P1p1R/P4B2/6nP/3R2bk w - - acn 24252; acs 0; bm f8=B; ce 32760; dm 4; pv f8=B cxb6 Bd6 a4 Rxf4 Kxh2 Rh4#;
3K4/4P3/4N3/3k4/5Q2/8/8/8 w - - acn 25; acs 0; bm e8=B; ce 32764; dm 2; pv e8=B Kxe6 Bf7#;
3K4/4PP2/3k3P/2p2Pp1/2P1p1P1/4P3/8/8 w - - acn 71; acs 0; bm e8=B; ce 32762; dm 3; pv e8=B Ke5 f8=B Kf6 Bg7#;
3Q4/5P1B/4k2K/5p2/5P2/8/8/8 w - - acn 64; acs 0; bm f8=B; ce 32764; dm 2; pv f8=B Kf7 Qe7#;
3R1K2/1P6/P1k1N3/7R/8/8/8/8 w - - acn 19; acs 0; bm b8=B; ce 32764; dm 2; pv b8=B Kb6 Rd6#;
3bk3/2P3Q1/8/3N2p1/6K1/8/8/8 w - - acn 105; acs 0; bm c8=B; ce 32764; dm 2; pv c8=B Bc7 Qe7#;
3k4/1P3B1P/1N2p1P1/4p3/4K3/8/8/8 w - - acn 321; acs 0; bm b8=B; ce 32762; dm 3; pv b8=B Ke7 h8=B Kf8 Bd6#;
4B3/2PP4/4k3/8/3K2P1/8/8/8 w - - acn 109; acs 0; bm d8=B; ce 32762; dm 3; pv d8=B Kd6 c8=R Ke6 Rc6#;
4B3/R2P4/4k3/6P1/2P1K3/8/8/8 w - - acn 356; acs 0; bm d8=B; ce 32762; dm 3; pv d8=B Kd6 Rc7 Ke6 Rc6#;
4Bk1K/2P4P/8/3N4/8/8/8/8 w - - acn 149; acs 0; bm c8=B; ce 32762; dm 3; pv c8=B Kxe8 Kg7 Kd8 h8=Q#;
4K3/1N3P2/4k3/R7/5PP1/8/8/8 w - - acn 15; acs 0; bm f8=B; ce 32764; dm 2; pv f8=B Kf6 Ra6#;
4K3/5P2/2N1k3/8/4P3/3R4/6P1/8 w - - acn 320; acs 0; bm f8=B; ce 32762; dm 3; pv f8=B Kf6 Rg3 Ke6 Rg6#;
4R3/3k1Pp1/6K1/8/2Q5/8/8/8 w - - acn 89; acs 0; bm f8=B; ce 32764; dm 2; pv f8=B Kxe8 Qc8#;
5B2/5P1P/4P1k1/8/6K1/8/8/8 w - - acn 156; acs 0; bm h8=B; ce 32762; dm 3; pv h8=B Kh7 Bfg7 Kg6 f8=N#;
5K2/1R2P3/3k4/8/3P2P1/2N5/8/8 w - - acn 56; acs 0; bm e8=B; ce 32764; dm 2; pv e8=B Ke6 Rb6#;
5K2/2P2Q2/3k4/P7/3P4/8/8/8 w - - acn 52; acs 0; bm c8=B; ce 32764; dm 2; pv c8=B Kc6 Qd7#;
5K2/4P3/8/5k2/6N1/6RN/8/3R4 w - - acn 34; acs 0; bm e8=B; ce 32764; dm 2; pv e8=B Ke4 Bg6#;
5K2/4PR2/2Bk4/8/3B4/8/8/8 w - - acn 20; acs 0; bm e8=B; ce 32764; dm 2; pv e8=B Ke6 Rf6#;
5K2/6PP/5k2/5p2/5B2/8/8/8 w - - acn 141; acs 0; bm g8=B; ce 32762; dm 3; pv g8=B Kg6 h8=R Kf6 Rh6#;
5K2/p2P3p/P1k4P/Q3p3/4P1R1/7B/8/8 w - - acn 77; acs 0; bm d8=B; ce 32764; dm 2; pv d8=B Kd6 Qd5#;
5R2/3P4/2P1k3/8/2K2P2/8/8/8 w - - acn 10; acs 0; bm d8=B; ce 32764; dm 2; pv d8=B Kd6 Rf6#;
5n2/2B3P1/8/8/8/8/3p2pN/3K2kb w - - acn 38; acs 0; bm gxf8=B; ce 32764; dm 2; pv gxf8=B Kf2 Bc5#;
5r2/3PP3/4kNN1/6K1/8/8/8/8 w - - acn 10; acs 0; bm exf8=B; ce 32764; dm 2; pv exf8=B Kf7 d8=N#;
5r2/4P2k/8/6Q1/8/8/8/6K1 w - - acn 41; acs 0; bm exf8=B; ce 32764; dm 2; pv exf8=B Kh8 Qg7#;
6B1/2B3KP/8/RP6/Nk6/8/8/6b1 w - - acn 3935; acs 0; bm h8=B; ce 32760; dm 4; pv h8=B Bd4+ Kh7 Be5 Bhxe5 Ka3 Bed6#;
6B1/3P2P1/1PP5/2P3N1/8/B1k5/R3PP2/5K2 w - - acn 62; acs 0; bm d8=B; ce 32764; dm 2; pv d8=B Kd4 Bf6#;
6B1/P1Bk4/3B4/6K1/8/8/8/8 w - - acn 8; acs 0; bm a8=B; ce 32764; dm 2; pv a8=B Ke8 Bc6#;
6B1/P4pB1/p7/K7/P4N2/2N5/1pkp3R/1R6 w - - acn 981; acs 0; bm a8=B; ce 32762; dm 3; pv a8=B f6 Be4+ Kxc3 Ne2#;
6K1/2P1R3/R1P2k2/8/8/7P/7P/8 w - - acn 295; acs 0; bm c8=B; ce 32762; dm 3; pv c8=B Kg6 Ra5 Kh6 Re6#;
6K1/2P1k3/2Q5/8/8/8/8/8 w - - acn 62; acs 0; bm c8=B; ce 32764; dm 2; pv c8=B Kd8 Qd7#;
6N1/1p2P2p/bp3N1P/1p1P4/1K2Pk1B/8/3PP3/8 w - - acn 221; acs 0; bm e8=B; ce 32762; dm 3; pv e8=B Ke5 e3 Kd6 Bg3#;
6bk/PPPP1R1p/3rp2N/4p3/4P3/4K3/3rP3/8 w - - acn 6773; acs 0; bm d8=B; ce 32758; dm 5; pv d8=B Rxd8 cxd8=B Rxd8 b8=B Rd3+ exd3 Bxf7 Bxe5#;
6nk/5Pp1/6Q1/8/8/1P6/8/1K6 w - - acn 128; acs 0; bm f8=B; ce 32764; dm 2; pv f8=B Ne7 Qxg7#;
6r1/2pRP1PP/2R5/N4Pp1/1p4p1/PP4P1/ppP5/brk4K w - - acn 1200; acs 0; bm hxg8=B; ce 32762; dm 3; pv hxg8=B bxa3 Bc4 Kxc2+ Bf1#;
6r1/k6P/P3R3/8/6p1/6K1/8/8 w - - acd 17/28; acn 13187; acs 0; bm hxg8=B; ce 32758; dm 5; pv hxg8=B Kb8 Re7 Kc8 a7 Kd8 Rf7 Ke8 a8=Q#;
7B/2K1kBP1/8/4N2R/8/8/8/8 w - - acn 63; acs 0; bm g8=B; ce 32764; dm 2; pv g8=B Kf8 Ng6#;
7R/1k2P2P/3K4/1P6/3B4/8/8/8 w - - acn 52; acs 0; bm e8=B; ce 32764; dm 2; pv e8=B Kb8 Bc6#;
7R/4P3/3p4/6P1/3PpPP1/4p3/4P2b/5K1k w - - acn 15136; acs 0; bm e8=B; ce 32758; dm 5; pv e8=B d5 Bh5 Bg1 Bg6+ Bh2 Bh7 Bg1 Bxe4#;
7R/k2P4/7P/2N3K1/8/8/8/8 w - - acn 10; acs 0; bm d8=B; ce 32764; dm 2; pv d8=B Ka8 Bb6#;
7b/3P1p2/5R2/5P1k/6R1/6K1/8/8 w - - acn 520; acs 0; bm d8=B; ce 32762; dm 3; pv d8=B Bg7 Rh6+ Bxh6 Rh4#;
8/1KNk1P2/8/8/4R3/8/8/8 w - - acn 22; acs 0; bm f8=B; ce 32764; dm 2; pv f8=B Kd8 Rd4#;
8/1KP5/8/2p5/1pP5/p7/k7/1R3R2 w - - acn 7759; acs 0; bm c8=B; ce 32760; dm 4; pv c8=B b3 Bg4 b2 Bd1 Kxb1 Bb3#;
8/1P1P4/1p2kBP1/1R5p/QN5K/1R6/B7/8 w - - acn 64; acs 0; bm d8=B; ce 32764; dm 2; pv d8=B Kd6 Rd3#;
8/1P1P4/8/2Nk4/1K6/8/8/7N w - - acn 296; acs 0; bm b8=B; ce 32762; dm 3; pv b8=B Kd4 d8=Q+ Ke3 Qd3#;
8/1P2pK1k/4P3/6P1/8/8/8/8 w - - acn 226; acs 0; bm b8=B; ce 32760; dm 4; pv b8=B Kh8 Bf4 Kh7 g6+ Kh8 Be5#;
8/1P6/8/4p3/4P3/3K4/p1B5/N1k5 w - - acn 60; acs 0; bm b8=B; ce 32762; dm 3; pv b8=B Kb2 Bd6 Kxa1 Bxe5#;
8/1P6/8/p7/P7/kP6/2P5/1K6 w - - acn 4315; acs 0; bm b8=B; ce 32758; dm 5; pv b8=B Kb4 Ba7 Kc3 Be3 Kb4 Bd4 Ka3 Bc5#;
8/1PBP4/2kN4/5P2/3K4/8/8/8 w - - acn 12; acs 0; bm d8=B; ce 32764; dm 2; pv d8=B Kd7 b8=N#;
8/1PP2B2/1n6/8/8/8/Np2p3/bk2K3 w - - acn 572; acs 0; bm c8=B; ce 32762; dm 3; pv c8=B Nxc8 bxc8=B Kc2 Bf5#;
8/1Q1P4/4k3/8/4K3/8/8/8 w - - acn 18; acs 0; bm d8=B; ce 32764; dm 2; pv d8=B Kd6 Qd5#;
8/1pP1P3/1BbpPK2/N1pk2P1/3p3P/3P4/8/8 w - - acn 853; acs 0; bm e8=B; ce 32762; dm 3; pv e8=B c4 Bh5 c3 Bf3#;
8/1pRPpk1N/bQ4p1/1p4P1/1K6/8/p7/B7 w - - acn 115; acs 0; bm d8=B; ce 32764; dm 2; pv d8=B Kg8 Qxg6#;
8/2B2PP1/6n1/8/8/8/3p2pN/3K2kb w - - acn 546; acs 0; bm f8=B; ce 32762; dm 3; pv f8=B Ne7 Bxe7 Kf2 Bc5#;
8/2K1k1P1/2p5/2p3P1/2Q5/8/8/8 w - - acn 73; acs 0; bm g8=B; ce 32764; dm 2; pv g8=B Ke8 Qf7#;
8/2K2P1n/4P3/5PPP/6Q1/pPpP4/rpP5/kB6 w - - acn 349418; acs 0; bm f8=B; ce 32758; dm 5; pv f8=B Nxg5 Bc5 Nh7 Be7 Nf8 Bxf8 Kxb1 Qd1#;
8/2NP4/1K6/4k3/8/1P3Q2/8/8 w - - acn 50; acs 0; bm d8=B; ce 32764; dm 2; pv d8=B Kd4 Bf6#;
8/2P1N1p1/4NpP1/5p2/PP3B2/Pp1k1P2/1P6/3K4 w - - acn 11; acs 0; bm c8=B; ce 32764; dm 2; pv c8=B Kc4 Ba6#;
8/2P1P1P1/3PkP2/8/4K3/8/8/8 w - - acn 236; acs 0; bm e8=B; ce 32762; dm 3; pv e8=B Kxf6 g8=R Ke6 Rg6#;
8/2P1k1B1/8/3Q4/8/8/1p6/bK6 w - - acn 83; acs 0; bm c8=B; ce 32764; dm 2; pv c8=B Ke8 Qd7#;
8/2P2p2/1pP2P2/bp2P3/1pkpK3/1r6/QP4p1/6B1 w - - acn 367; acs 0; bm c8=B; ce 32762; dm 3; pv c8=B d3 Bg4 d2 Be2#;
8/2P4Q/1k6/8/1K2N3/8/4B3/8 w - - acn 29; acs 0; bm c8=B; ce 32764; dm 2; pv c8=B Kc6 Qb7#;
8/2P4R/1P1k4/8/2K2P2/8/8/8 w - - acn 10; acs 0; bm c8=B; ce 32764; dm 2; pv c8=B Kc6 Rh6#;
8/2P5/2PP4/P7/kP6/B4Q2/8/7K w - - acn 1070; acs 0; bm c8=B; ce 32762; dm 3; pv c8=B Kb5 Qb3 Kxc6 b5#;
8/2P5/3N4/1N1k4/3P3p/6pB/6K1/8 w - - acn 175; acs 0; bm c8=B; ce 32762; dm 3; pv c8=B Kc6 Bhd7+ Kb6 Nc4#;
8/2P5/5p2/2P5/1p2pP2/PR2P3/pb6/rk1K4 w - - acn 3558; acs 0; bm c8=B; ce 32760; dm 4; pv c8=B bxa3 Rb8 f5 Bb7 Bc3 Bxe4#;
8/2PN4/8/1N1k1B2/K7/8/4P3/8 w - - acn 69; acs 0; bm c8=B; ce 32764; dm 2; pv c8=B Kc4 Be6#;
8/2Q1P3/1P6/3k4/3p4/3K4/8/8 w - - acn 323; acs 0; bm e8=B; ce 32762; dm 3; pv e8=B Ke6 Ke4 d3 Qe5#;
8/2p4P/2K2b2/5N2/8/4B1RB/4p2p/4n2k w - - acn 7165; acs 0; bm h8=B; ce 32762; dm 3; pv h8=B Bg7 Bxg7 Nc2 Bg2#;
8/3KNP1k/8/4R3/8/8/8/8 w - - acn 8; acs 0; bm f8=B; ce 32764; dm 2; pv f8=B Kh8 Rh5#;
8/3KNk1P/8/4R3/8/8/8/8 w - - acn 8; acs 0; bm h8=B; ce 32764; dm 2; pv h8=B Kf8 Rf5#;
8/3P1P1P/4k3/8/5K2/3Q4/8/8 w - - acn 26; acs 0; bm f8=B; ce 32764; dm 2; pv f8=B Kf6 Qf5#;
8/3P1P2/2B4p/5k1p/3K1P1p/4P2p/7P/8 w - - acn 426; acs 0; bm d8=B; ce 32762; dm 3; pv d8=B Kg6 f8=Q Kh7 Be4#;
8/3P1P2/8/4kP1P/4P3/4K3/8/8 w - - acn 1428; acs 0; bm f8=B; ce 32760; dm 4; pv f8=B Kf6 d8=Q+ Kf7 Qe7+ Kg8 Qg7#;
8/3P1Pp1/2KPpbB1/1P2kp1N/P3p3/4P3/8/8 w - - acn 885; acs 0; bm d8=B; ce 32762; dm 3; pv d8=B f4 Ba5 f3 Bc3#;
8/3P1k1K/8/8/B7/1P6/8/4R3 w - - acn 10; acs 0; bm d8=B; ce 32764; dm 2; pv d8=B Kf8 Rf1#;
8/3P1k2/3K4/6R1/8/8/8/8 w - - acn 241; acs 0; bm Rg4 d8=B; ce 32762; dm 3; pv d8=B Kf8 Ke6 Ke8 Rg8#;
8/3P2K1/P1k1B3/7Q/8/8/8/8 w - - acn 16; acs 0; bm d8=B; ce 32764; dm 2; pv d8=B Kd6 Qd5#;
8/3P2kP/6P1/6K1/8/8/8/8 w - - acn 9; acs 0; bm d8=B; ce 32764; dm 2; pv d8=B Kh8 Bf6#;
8/3P3R/1B2p3/4k1K1/8/8/6B1/8 w - - acn 73; acs 0; bm d8=B; ce 32764; dm 2; pv d8=B Kd6 Bdc7#;
8/3P4/8/8/8/1KN1k1B1/4P3/8 w - - acn 53; acs 0; bm d8=B; ce 32764; dm 2; pv d8=B Kd2 Bg5#;
8/4NP1k/8/5PR1/8/5K2/8/8 w - - acn 44; acs 0; bm f8=B; ce 32764; dm 2; pv f8=B Kh8 Rh5#;
8/4NP2/8/2B1k1N1/7K/8/3P4/8 w - - acn 63; acs 0; bm f8=B; ce 32764; dm 2; pv f8=B Kf6 Bd4#;
8/4NP2/8/2BBk3/7K/8/3P4/8 w - - acn 74; acs 0; bm f8=B; ce 32764; dm 2; pv f8=B Kf6 Bd4#;
8/4P1N1/8/3k4/1KN5/2B3P1/2P5/8 w - - acn 10; acs 0; bm e8=B; ce 32764; dm 2; pv e8=B Ke4 Bc6#;
8/4P1Q1/3k4/8/3K4/8/8/8 w - - acn 18; acs 0; bm e8=B; ce 32764; dm 2; pv e8=B Ke6 Qe5#;
8/4P2Q/3k4/6P1/3K4/8/8/8 w - - acn 16; acs 0; bm e8=B; ce 32764; dm 2; pv e8=B Ke6 Qd7#;
8/4P3/1PR5/p7/P7/1k1P4/1p2K3/bN6 w - - acn 7538; acs 0; bm e8=B; ce 32760; dm 4; pv e8=B Kb4 Rc4+ Kb3 Bf7 Ka2 Rc1#;
8/4P3/2P3p1/1K1kb1R1/5R2/B7/8/8 w - - acn 65; acs 0; bm e8=B; ce 32764; dm 2; pv e8=B Ke6 Bf7#;
8/4P3/8/1B1k1NK1/3P4/8/8/8 w - - acn 51; acs 0; bm e8=B; ce 32764; dm 2; pv e8=B Ke6 Bc4#;
8/4P3/8/4n3/8/6K1/4k3/1Q3N2 w - - acn 82; acs 0; bm e8=B; ce 32764; dm 2; pv e8=B Nc6 Bh5#;
8/4PP2/1P1k1P2/6P1/3KP3/8/8/8 w - - acn 102; acs 0; bm e8=B; ce 32762; dm 3; pv e8=B Ke6 f8=N+ Kd6 e5#;
8/5P1Q/1P2kN2/8/4K3/8/8/8 w - - acn 32; acs 0; bm f8=B; ce 32764; dm 2; pv f8=B Kxf6 Qf5#;
8/5P1Q/4k3/8/4K3/8/8/8 w - - acn 16; acs 0; bm f8=B; ce 32764; dm 2; pv f8=B Kf6 Qf5#;
8/5P2/1N1n4/8/2P4B/8/Pp1p4/krbQ3K w - - acn 26326; acs 0; bm f8=B; ce 32760; dm 4; pv f8=B Nb7 Bb4 Na5 Bxa5 Kxa2 Qa4#;
8/5P2/4N3/4k1N1/p3P3/Bp6/1K6/8 w - - acn 175; acs 0; bm f8=B; ce 32762; dm 3; pv f8=B Kf6 Bae7+ Kg6 Nf4#;
8/5PBk/4Pp2/5K1N/8/8/8/8 w - - acn 27; acs 0; bm f8=B; ce 32764; dm 2; pv f8=B Kg8 Nxf6#;
8/6P1/5B2/3P1kP1/8/5K2/8/8 w - - acn 95; acs 0; bm g8=B; ce 32762; dm 3; pv g8=B Kg6 Kg3 Kf5 Bh7#;
8/6P1/8/2R5/8/B5K1/ppbp4/1rkn3R w - - acn 1748; acs 0; bm g8=B; ce 32762; dm 3; pv g8=B a1=Q Bb3 Qa2 Rxc2#;
8/6P1/8/8/5N2/7p/7p/4K2k w - - acn 87; acs 0; bm g8=B; ce 32762; dm 3; pv g8=B Kg1 Ne2+ Kh1 Bd5#;
8/6PP/3P1k1P/8/5K2/6P1/8/8 w - - acn 122; acs 0; bm g8=B; ce 32762; dm 3; pv g8=B Kg6 h8=Q Kh5 Bf7#;
8/7P/8/2p5/1pP5/pP4N1/RN6/K3BBk1 w - - acn 138; acs 0; bm h8=B; ce 32762; dm 3; pv h8=B axb2+ Bxb2 Kh2 Bd4#;
8/7P/8/8/6p1/K5Qb/8/7k w - - acn 859; acs 0; bm h8=B; ce 32762; dm 3; pv h8=B Bg2 Bd4 Bh3 Qg1#;
8/7P/8/8/8/5K1p/4NNPk/8 w - - acn 56; acs 0; bm h8=B; ce 32764; dm 2; pv h8=B hxg2 Be5#;
8/BPP1PR2/3k4/1P6/4K3/8/8/8 w - - acn 25; acs 0; bm c8=B; ce 32764; dm 2; pv c8=B Kc7 b8=Q#;
8/P1P5/k7/8/1K6/8/8/8 w - - acn 186; acs 0; bm a8=B; ce 32762; dm 3; pv a8=B Kb6 c8=Q Ka7 Qb7#;
8/P4B2/1B6/1kP3K1/8/2P5/1P6/8 w - - acn 10; acs 0; bm a8=B; ce 32764; dm 2; pv a8=B Ka4 Bc6#;
8/P4p1k/5Q2/8/8/8/6p1/6Kb w - - acn 558; acs 0; bm a8=B; ce 32762; dm 3; pv a8=B Kg8 Qh6 f6 Bd5#;
8/P5Q1/1k6/8/1K6/8/8/8 w - - acn 42; acs 0; bm a8=B; ce 32764; dm 2; pv a8=B Ka6 Qb7#;
8/P7/2R5/1k6/8/1K6/8/8 w - - acn 262; acs 0; bm a8=B; ce 32762; dm 3; pv a8=B Ka5 Kc4 Ka4 Ra6#;
8/P7/8/5R2/4p3/8/2K1kB2/8 w - - acn 401; acs 0; bm a8=B; ce 32762; dm 3; pv a8=B e3 Bg2 exf2 Re5#;
8/P7/8/8/8/4pq2/1Q2R3/3K3k w - - acn 268; acs 0; bm a8=B; ce 32762; dm 3; pv a8=B Qd5+ Bxd5+ Kg1 Re1#;
8/PBP5/Nk6/8/1K6/8/8/8 w - - acn 29; acs 0; bm a8=B; ce 32764; dm 2; pv a8=B Ka7 c8=N#;
8/PP3k2/5P2/5K2/8/8/8/8 w - - acn 99; acs 0; bm a8=B; ce 32762; dm 3; pv a8=B Kf8 b8=Q+ Kf7 Bd5#;
8/PpN5/1k2N3/1P6/1K6/8/8/8 w - - acn 1170056; acs 1; bm a8=B; ce 32754; dm 7; pv a8=B Ka7 Kc5 Kb8 b6 Kc8 Kd6 Kb8 Nc5 Kc8 Bxb7+ Kd8 N5e6#;
8/Q1P5/4P3/1k2K3/8/8/N7/N7 w - - acn 78; acs 0; bm c8=B; ce 32764; dm 2; pv c8=B Kc6 Bd7#;
8/Q3P3/5k2/8/5K2/B7/8/8 w - - acn 18; acs 0; bm e8=B; ce 32764; dm 2; pv e8=B Ke6 Qf7#;
8/Q4P2/6k1/8/3N2K1/8/3B4/8 w - - acn 29; acs 0; bm f8=B; ce 32764; dm 2; pv f8=B Kf6 Qg7#;
8/R4P2/4k1P1/3p1p2/3p1P2/1K1P1P2/8/8 w - - acn 10; acs 0; bm f8=B; ce 32764; dm 2; pv f8=B Kf6 Ra6#;
8/R4P2/4k1P1/8/2P2K2/8/8/8 w - - acn 10; acs 0; bm f8=B; ce 32764; dm 2; pv f8=B Kf6 Ra6#;
8/k1P5/N7/2P1K3/8/3N4/8/8 w - - acn 2152; acs 0; bm c8=B; ce 32760; dm 4; pv c8=B Ka8 Ndb4 Ka7 Nc6+ Ka8 Nc7#;
8/kBP5/P7/R2N4/8/K7/8/8 w - - acn 34; acs 0; bm c8=B; ce 32764; dm 2; pv c8=B Kb8 a7#;
8/p1P5/PkP1NR2/8/1K3B2/8/8/8 w - - acn 47; acs 0; bm c8=B; ce 32764; dm 2; pv c8=B Kxc6 Nc7#;
8/p2P4/P2p1P1P/8/3p4/Pp1Bp1p1/bpn3Kp/nkb4R w - - acn 4578511; acs 6; bm d8=B; ce 32752; dm 8; pv d8=B e2 Ba5 e1=N+ Bxe1 Be3 Bxg3+ Bc1 Rf1 h1=Q+ Kxh1 d5 Be1 Bd2 Bxd2#;
B7/3PBP2/3Nk3/8/3K4/8/8/8 w - - acn 14; acs 0; bm d8=B; ce 32764; dm 2; pv d8=B Kd7 f8=N#;
K7/1P6/8/k7/2Q5/8/8/8 w - - acn 60; acs 0; bm b8=B; ce 32764; dm 2; pv b8=B Kb6 Bc7#;
R6b/K1P2knR/6n1/3P2BB/8/8/8/8 w - - acn 792; acs 0; bm c8=B; ce 32762; dm 3; pv c8=B Kf8 Bd7+ Ne8 Rxe8#;
R7/1P1P2k1/6P1/6K1/8/8/8/8 w - - acn 59; acs 0; bm d8=B; ce 32764; dm 2; pv d8=B Kg8 Bf6#;
b2n2R1/Pk2P3/4nK2/1P3p2/5N2/5p2/5B2/7R w - - acn 1774; acs 0; bm Rh7; ce 32762; dm 3; pv Rh7 Nc7 exd8=B Kc8 Rxc7#;
b5rr/1kPPP3/2N1K3/1P4PP/2N5/8/8/8 w - - acn 2472; acs 0; bm d8=B; ce 32760; dm 4; pv d8=B Rh6+ gxh6 Rg6+ hxg6 Kc8 Nd6#;
kb2r3/p1R2PPP/N2p4/3p4/3P4/3K4/3Pr3/8 w - - acn 763; acs 0; bm fxe8=B; ce 32760; dm 4; pv fxe8=B Rxe8 g8=B Re3+ dxe3 Bxc7 Bxd5#;
kb2r3/p1R3PP/N2p4/3p4/3P4/3K4/3P4/8 w - - acn 125; acs 0; bm g8=B; ce 32762; dm 3; pv g8=B Re3+ dxe3 Bxc7 Bxd5#;
kb4r1/p1R4P/N2p4/3p4/3P4/3K4/3P4/8 w - - acn 34; acs 0; bm hxg8=B; ce 32764; dm 2; pv hxg8=B Bxc7 Bxd5#;
kb6/2P5/K7/2N5/8/8/8/8 w - - acn 208; acs 0; bm c8=B; ce 32762; dm 3; pv c8=B Ba7 Nd7 Bb8 Bb7#;
kn6/b1Pp4/1pnB4/1K6/4B3/8/8/8 w - - acn 399; acs 0; bm c8=B; ce 32762; dm 3; pv c8=B Na6 Kxa6 b5 Bb7#;

Richard Allbert · Post by **Richard Allbert** » Fri Mar 19, 2010 9:09 pm

I think the first time Jabba has found a move in a posted position

Code: Select all

 Jabba 1.2 > uci

id name Jabba 1.2

id author Richard Allbert

option name Hash type spin default 32 min 16 max 1024
option name Ponder type check default false
option name OwnBook type check default false
option name UCI_Chess960 type check default false
option name ClearHash type button
option name UseFutility1 type check default true
option name UseFutility2 type check default true
option name Fultility1Margin type spin default 50 min 0 max 500
option name Fultility2Margin type spin default 500 min 0 max 20000
option name SearchNullmove type check default true
option name SearchIID type check default true
option name HashTableCuts type check default true
uciok
position fen 4Q3/Pq4pk/5p1p/5P1K/6PP/8/8/8 w - - 0 1
go infinite

 searchmode 16

allocate time mode = 16
info depth 2 seldepth 6 score cp 975  time 31 nodes 235 pv  a7a8q b7a8
info depth 3 seldepth 7 score cp 334  time 47 nodes 808 pv  a7a8b b7b4 a8d5
info depth 4 seldepth 10 score cp 349  time 62 nodes 1538 pv  a7a8b b7b4 a8d5 b4
d4
info depth 5 seldepth 13 score cp 346  time 78 nodes 5016 pv  a7a8b b7b3 e8e7 b3
c4 a8e4
info depth 6 seldepth 15 score cp 355  time 94 nodes 10147 pv  a7a8b b7b3 a8e4 b
3e3 e8e6 h7h8
info depth 7 seldepth 17 score cp 346  time 125 nodes 19004 pv  a7a8b b7b3 a8c6
b3c4 e8d7 c4c5 c6d5
info depth 8 seldepth 19 score cp 358  time 156 nodes 34083 pv  a7a8b b7b3 a8c6
b3g3 e8f7 g3e5 c6d5 h7h8
info depth 9 seldepth 21 score cp 357  time 250 nodes 99947 pv  a7a8b b7b3 e8d7
b3b8 a8d5 h7h8 h5g6 b8f8 h4h5
info depth 10 seldepth 23 score cp 359  time 343 nodes 160400 pv  a7a8b b7b3 e8d
7 b3b8 a8d5 b8b6 d5f7 b6c5 f7g6 h7g8 d7d8 c5f8
info depth 11 seldepth 25 score cp 357  time 515 nodes 295873 pv  a7a8b b7b3 e8d
7 b3b8 a8d5 b8e5 d7f7 e5b8 g4g5 h6g5 h4g5
info depth 12 seldepth 26 score cp 359  time 686 nodes 418511 pv  a7a8b b7b3 e8d
7 b3b8 a8d5 b8e5 d7f7 e5b8 f7e7 b8f4 d5e6 h7h8
info depth 13 seldepth 27 score cp 363  time 1076 nodes 735935 pv  a7a8b b7b3 e8
d7 b3b8 a8d5 b8h8 d5e6 h8b8 d7c8 b8c8 e6c8 h7h8 c8e6
info depth 14 seldepth 31 score cp 359  time 2090 nodes 1581270 pv  a7a8b b7b3 e
8d7 b3b8 a8d5 b8f8 d5f7 f8b8 d7e8 b8e8 f7e8 h7g8 e8g6 g8f8
info depth 15 seldepth 33 score cp 364  time 2870 nodes 2231867 pv  a7a8b b7b3 e
8d7 b3b8 a8d5 b8f8 d5e6 f8a8 d7c8 a8c8 e6c8 h7h8 h5g6 h8g8 c8e6 g8f8
info depth 16 seldepth 33 score cp 443  time 3853 nodes 3060372 pv  a7a8b b7b3 e
8d7 b3b8 a8d5 b8f8 d5e6 f8a8 d7c8 a8c8 e6c8 h7g8 h5g6 g8f8 c8e6 h6h5
info depth 17 seldepth 35 score cp 443  time 5647 nodes 4607556 pv  a7a8b b7b3 e
8d7 b3b8 a8d5 b8f8 d5e6 f8a8 d7c8 a8c8 e6c8 h7g8 h5g6 g8f8 c8e6 h6h5 g6h5
info depth 18 seldepth 36 score cp 442  time 20342 nodes 16231486 pv  a7a8b b7b3
 e8d7 b3b8 a8d5 b8f8 d5e6 f8a8 d7c8 a8c8 e6c8 h7g8 h5g6 h6h5 g6h5 g8f7 g4g5 f7e7

info depth 19 seldepth 37 score cp 463  time 26504 nodes 21285886 pv  a7a8b b7b3
 e8d7 b3b8 a8d5 b8f8 d5e6 f8a8 d7c8 a8c8 e6c8 h7g8 h5g6 h6h5 g6h5 g8f7 c8e6 f7e7
 h5g6 e7f8
info depth 20 seldepth 40 score cp 473  time 45708 nodes 37025134 pv  a7a8b b7b3
 e8d7 b3b8 a8d5 b8f8 d5f7 h7h8 h5g6 h6h5 g6h5 h8h7 g4g5 f8a8 f7g6 h7h8 d7e8 a8e8
 g6e8 h8g8 h5g4 g8f8
stop

nulltry 7671892 nullcuts 5767882 57.0835%
futility 1 17162436 futility 2 2568610
hashcuts 5572299
fh 863631 fhf 11744658 ordering  93.1503%
nodes 28911488 qnodes 31592583  52.2156%
qcuts 2299043
checkext = 9980567 pawnseventh = 133 intopawnend = 131182
pvssearch = 25139412 pvsresearch = 879149 3.49709%

bestmove a7a8b

Although no mate score...

Regards

Richard

mhalstern · Post by **mhalstern** » Fri Mar 19, 2010 9:20 pm

Zappa Mexico II finds the mate in 12 quickly:

New game
4Q3/Pq4pk/5p1p/5P1K/6PP/8/8/8 w - - 0 1

Analysis by Zappa Mexico II 64:

Code: Select all


1.a8B Qb3 2.Bc6 Qa2 3.Bd7 Qg8 4.Qxg8+ Kxg8 5.Be6+ Kf8 6.Kg6 Ke8 7.Kxg7 Kd8 8.Kf7 Kc7 9.Kxf6 Kb8 
  +-  &#40;11.34&#41;   Depth&#58; 13/41   00&#58;00&#58;00  683kN, tb=14
1.a8B Qb3 2.Bc6 Qa2 3.Bd7 Qg8 4.Qxg8+ Kxg8 5.Be6+ Kf8 6.Kg6 Ke8 7.Kxg7 Kd8 8.Kf7 Kc7 9.Kxf6 Kb8 
  +-  &#40;11.34&#41;   Depth&#58; 13/41   00&#58;00&#58;00  705kN, tb=14
1.a8B Qb3 2.Bc6 Qa2 3.Bd7 Qg8 4.Qxg8+ Kxg8 5.Be6+ Kf8 6.Kg6 Ke8 7.Kxg7 Ke7 8.h5 Kd6 9.Kxf6 Kc6 10.Ke7 Kc5 
  +-  &#40;15.35&#41;   Depth&#58; 14/41   00&#58;00&#58;01  1425kN, tb=151
1.a8B Qb3 2.Bc6 Qa2 3.Bd7 Qg8 4.Qxg8+ Kxg8 5.Be6+ Kf8 6.Kg6 Ke8 7.Kxg7 Ke7 8.h5 Kd6 9.Kxf6 Kc6 10.Ke7 Kc5 
  +-  &#40;15.35&#41;   Depth&#58; 14/41   00&#58;00&#58;01  1471kN, tb=151
1.a8B Qb3 2.Bc6 Qa2 3.Bd7 Qg8 4.Qxg8+ Kxg8 5.Be6+ Kf8 6.Kg6 Ke8 7.Kxg7 Ke7 8.h5 Kd6 9.Kxf6 Kc6 10.Ke7 Kc5 
  +-  &#40;15.35&#41;   Depth&#58; 15/49   00&#58;00&#58;01  1815kN, tb=162
1.a8B Qb3 2.Bc6 Qa2 3.Bd7 Qg8 4.Qxg8+ Kxg8 5.Be6+ Kf8 6.Kg6 Ke8 7.Kxg7 Ke7 8.h5 Kd6 9.Kxf6 Kc6 10.Ke7 Kc5 
  +-  &#40;15.35&#41;   Depth&#58; 15/49   00&#58;00&#58;01  1880kN, tb=162
1.a8B Qb3 2.Bc6 Qa2 3.Bd7 Qg8 4.Qxg8+ Kxg8 5.Be6+ Kf8 6.Kg6 Ke8 7.Kxg7 Ke7 8.h5 Kd6 9.Kxf6 Kc6 10.Ke7 Kc5 
  +-  &#40;15.35&#41;   Depth&#58; 16/49   00&#58;00&#58;01  2663kN, tb=185
1.a8B Qb3 2.Bc6 Qa2 3.Bd7 Qg8 4.Qxg8+ Kxg8 5.Be6+ Kf8 6.Kg6 Ke8 7.Kxg7 Ke7 8.h5 Kd6 9.Kxf6 Kc6 10.Ke7 Kc5 
  +-  &#40;15.35&#41;   Depth&#58; 16/49   00&#58;00&#58;01  2811kN, tb=192
1.a8B Qb3 2.Bc6 Qg8 3.Qxg8+ Kxg8 4.Bd5+ Kf8 5.Kg6 Ke7 6.Kxg7 Kd6 7.Kxf6 Kd7 8.Be6+ Ke8 9.g5 h5 10.g6 Kd8 11.g7 Kc7 
  +-  &#40;17.27&#41;   Depth&#58; 17/49   00&#58;00&#58;04  6392kN, tb=1668
1.a8B Qb3 2.Bc6 Qg8 3.Qxg8+ Kxg8 4.Bd5+ Kf8 5.Kg6 Ke7 6.Kxg7 Kd6 7.Kxf6 Kd7 8.Be6+ Ke8 9.g5 h5 10.g6 Kd8 11.g7 Kc7 
  +-  &#40;17.27&#41;   Depth&#58; 17/49   00&#58;00&#58;04  6671kN, tb=1673
1.a8B Qb3 2.Bc6 Qa2 3.Bd7 Qg8 4.Qxg8+ Kxg8 5.Be6+ Kf8 6.Kg6 Ke7 7.Kxg7 Kd6 8.Kxf6 Kc5 9.Ke7 Kd4 10.f6 Ke4 11.f7 Ke3 12.f8Q Kd4 13.Qxh6 
  +-  &#40;20.77&#41;   Depth&#58; 18/55   00&#58;00&#58;16  36827kN, tb=14051
1.a8B Qb3 2.Bc6 Qa2 3.Bd7 Qg8 4.Qxg8+ Kxg8 5.Be6+ Kf8 6.Kg6 Ke7 7.Kxg7 Kd6 8.Kxf6 Kc5 9.Ke7 Kd4 10.f6 Ke4 11.f7 Ke3 12.f8Q Kd4 13.Qxh6 
  +-  &#40;20.77&#41;   Depth&#58; 18/55   00&#58;00&#58;17  37420kN, tb=14077
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.g5 Qxe8+ 5.Bxe8 fxg5 6.hxg5 hxg5 7.Kxg5 Kh8 
  +-  (#22&#41;   Depth&#58; 19/57   00&#58;00&#58;22  55111kN, tb=18825
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.g5 Qxe8+ 5.Bxe8 fxg5 6.hxg5 hxg5 7.Kxg5 Kh8 
  +-  (#22&#41;   Depth&#58; 19/57   00&#58;00&#58;22  56192kN, tb=18964
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.g5 Qxe8+ 5.Bxe8 fxg5 6.hxg5 hxg5 7.Kxg5 Kh8 
  +-  (#22&#41;   Depth&#58; 20/57   00&#58;00&#58;22  56192kN, tb=18964
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.g5 Qxe8+ 5.Bxe8 fxg5 6.hxg5 hxg5 7.Kxg5 Kh8 
  +-  (#22&#41;   Depth&#58; 20/57   00&#58;00&#58;23  57699kN, tb=19218
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.g5 Qxe8+ 5.Bxe8 fxg5 6.hxg5 hxg5 7.Kxg5 Kh8 
  +-  (#22&#41;   Depth&#58; 21/57   00&#58;00&#58;25  62666kN, tb=20544
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.g5 Qxe8+ 5.Bxe8 fxg5 6.hxg5 hxg5 7.Kxg5 Kh8 
  +-  (#22&#41;   Depth&#58; 21/57   00&#58;00&#58;26  65902kN, tb=21419
1.a8B Qb3 2.Qd7 Qb4 3.Bd5 Qb8 4.Qe7 Qe5 5.Be6 Qb8 6.Bf7 Qc8 7.Be8 Qc4 8.Bg6+ Kh8 9.Bf7 g6+ 10.fxg6 Qxg4+ 11.Kxg4 f5+ 12.Kxf5 Kg7 13.Qf6+ Kf8 14.g7# 
  +-  (#14&#41;   Depth&#58; 22/57   00&#58;00&#58;29  74126kN, tb=24381
1.a8B Qb3 2.Qd7 Qb4 3.Bd5 Qb8 4.Qe7 Qe5 5.Be6 Qb8 6.Bf7 Qc8 7.Be8 Qc4 8.Bg6+ Kh8 9.Bf7 g6+ 10.fxg6 Qxg4+ 11.Kxg4 f5+ 12.Kxf5 Kg7 13.Qf6+ Kf8 14.g7# 
  +-  (#14&#41;   Depth&#58; 22/63   00&#58;00&#58;31  80313kN, tb=26077
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.Qe7 Qd5 5.Be8 Qc4 6.Bg6+ Kh8 7.Bf7 g6+ 8.fxg6 Qxg4+ 9.Kxg4 f5+ 10.Kxf5 Kg7 11.Qf6+ Kf8 12.g7# 
  +-  (#12&#41;   Depth&#58; 23/63   00&#58;00&#58;35  90346kN, tb=31685
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.Qe7 Qd5 5.Be8 Qc4 6.Bg6+ Kh8 7.Bf7 g6+ 8.fxg6 Qxg4+ 9.Kxg4 f5+ 10.Kxf5 Kg7 11.Qf6+ Kf8 12.g7# 
  +-  (#12&#41;   Depth&#58; 24/63   00&#58;00&#58;38  94948kN, tb=34196
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.Qe7 Qd5 5.Be8 Qc4 6.Bg6+ Kh8 7.Bf7 g6+ 8.fxg6 Qxg4+ 9.Kxg4 f5+ 10.Kxf5 Kg7 11.Qf6+ Kf8 12.g7# 
  +-  (#12&#41;   Depth&#58; 24/63   00&#58;00&#58;43  107mN, tb=40570
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.Qe7 Qd5 5.Be8 Qc4 6.Bg6+ Kh8 7.Bf7 g6+ 8.fxg6 Qxg4+ 9.Kxg4 f5+ 10.Kxf5 Kg7 11.Qf6+ Kf8 12.g7# 
  +-  (#12&#41;   Depth&#58; 24/63   00&#58;00&#58;48  123mN, tb=47560
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.Qe7 Qd5 5.Be8 Qc4 6.Bg6+ Kh8 7.Bf7 g6+ 8.fxg6 Qxg4+ 9.Kxg4 f5+ 10.Kxf5 Kg7 11.Qf6+ Kf8 12.g7# 
  +-  (#12&#41;   Depth&#58; 25/69   00&#58;00&#58;56  147mN, tb=60453
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.Qe7 Qd5 5.Be8 Qc4 6.Bg6+ Kh8 7.Bf7 g6+ 8.fxg6 Qxg4+ 9.Kxg4 f5+ 10.Kxf5 Kg7 11.Qf6+ Kf8 12.g7# 
  +-  (#12&#41;   Depth&#58; 25/69   00&#58;01&#58;02  165mN, tb=76094
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.Qe7 Qd5 5.Be8 Qc4 6.Bg6+ Kh8 7.Bf7 g6+ 8.fxg6 Qxg4+ 9.Kxg4 f5+ 10.Kxf5 Kg7 11.Qf6+ Kf8 12.g7# 
  +-  (#12&#41;   Depth&#58; 26/71   00&#58;01&#58;25  253mN, tb=106462
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.Qe7 Qd5 5.Be8 Qc4 6.Bg6+ Kh8 7.Bf7 g6+ 8.fxg6 Qxg4+ 9.Kxg4 f5+ 10.Kxf5 Kg7 11.Qf6+ Kf8 12.g7# 
  +-  (#12&#41;   Depth&#58; 26/71   00&#58;01&#58;35  279mN, tb=141113

mhalstern · Post by **mhalstern** » Fri Mar 19, 2010 9:25 pm

Crafty announces mate in 2,724.

Bob, please comment on this:

New game
4Q3/Pq4pk/5p1p/5P1K/6PP/8/8/8 w - - 0 1

Analysis by Crafty 23.1 64 bit:

1.a8B Qb3 2.Be4 Qc4 3.Bc6 Qa2 4.Bb7 Qd2 5.Bf3 Qd4 6.Be2 Qd5 7.Qg6+ Kg8
+- (5.00) Depth: 11 00:00:00 205kN
1.a8B Qb3 2.Be4 Qc4 3.Bc6 Qa2 4.Bb7 Qd2 5.Bf3 Qd4 6.Be2 Qd5 7.Qg6+ Kg8
+- (5.00) Depth: 11 00:00:00 243kN
1.a8B Qb3 2.Be4 Qc4 3.Bc6 Qd3 4.Qf7 Qd8 5.Qd7 Qb6 6.Bd5 Qd4
+- (5.06) Depth: 12 00:00:00 408kN
1.a8B Qb3 2.Be4 Qc4 3.Bc6 Qd3 4.Qf7 Qd8 5.Qd7 Qb6 6.Bd5 Qd4
+- (5.06) Depth: 12 00:00:00 455kN
1.a8B Qb3 2.Be4 Qc4 3.Bc6 Qa2 4.Qf8 Qc4 5.Be8 Qg8 6.Qxg8+ Kxg8 7.Kg6 Kf8 8.Bf7 Ke7 9.Kxg7 Kd6
+- (5.27) Depth: 13 00:00:00 569kN
1.a8B Qb3 2.Be4 Qc4 3.Bc6 Qa2 4.Qf8 Qc4 5.Be8 Qg8 6.Qxg8+ Kxg8 7.Kg6 Kf8 8.Bf7 Ke7 9.Kxg7 Kd6
+- (5.27) Depth: 13 00:00:00 626kN
1.a8B
+- (5.67) Depth: 14 00:00:00 801kN
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.Qxg8+ Kxg8 5.Be6+ Kh8 6.Bd5 Kh7 7.Bf7 Kh8 8.Kg6 h5 9.Kxh5
+- (6.45) Depth: 14 00:00:00 870kN
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.Qxg8+ Kxg8 5.Be6+ Kh8 6.Bd5 Kh7 7.Bf7 Kh8 8.Kg6 h5 9.Kxh5
+- (6.45) Depth: 14 00:00:00 957kN
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.Qxg8+ Kxg8 5.Be6+ Kh8 6.Bd5 Kh7 7.Bf7 Kh8 8.Kg6 h5 9.Kxh5
+- (6.43) Depth: 15 00:00:00 1220kN
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.Qxg8+ Kxg8 5.Be6+ Kh8 6.Bd5 Kh7 7.Bf7 Kh8 8.Kg6 h5 9.Kxh5
+- (6.43) Depth: 15 00:00:00 1516kN
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.Qxg8+ Kxg8 5.Be6+ Kh8 6.Bb3 Kh7 7.Bd5 Kh8 8.Kg6 h5 9.Kxh5 Kh7
+- (6.65) Depth: 16 00:00:00 1985kN
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.Qxg8+ Kxg8 5.Be6+ Kh8 6.Bb3 Kh7 7.Bd5 Kh8 8.Kg6 h5 9.Kxh5 Kh7
+- (6.65) Depth: 16 00:00:00 2494kN
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.Qxg8+ Kxg8 5.Be6+ Kh8 6.Bb3 Kh7 7.Bf7 Kh8 8.Kg6 h5 9.Kxh5 Kh7 10.Bg6+ Kg8
+- (6.45) Depth: 17 00:00:01 3756kN
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.Qxg8+ Kxg8 5.Be6+ Kh8 6.Bb3 Kh7 7.Bf7 Kh8 8.Kg6 h5 9.Kxh5 Kh7 10.Bg6+ Kg8
+- (6.45) Depth: 17 00:00:02 7978kN
1.a8B
+- (6.85) Depth: 18 00:00:02 8136kN
1.a8B
+- (7.85) Depth: 18 00:00:02 8384kN
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.g5 Qxe8+ 5.Bxe8 Kg8 6.gxf6 gxf6 7.Kxh6 Kf8 8.h5 Ke7 9.Kg6 Kd6 10.Kxf6
+- (8.58) Depth: 18 00:00:03 10313kN
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.g5 Qxe8+ 5.Bxe8 Kg8 6.gxf6 gxf6 7.Kxh6 Kf8 8.h5 Ke7 9.Kg6 Kd6 10.Kxf6
+- (8.58) Depth: 18 00:00:05 13044kN
1.a8B
+- (8.98) Depth: 19 00:00:05 14019kN
1.a8B
+- (9.98) Depth: 19 00:00:05 14156kN
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.Qxg8+ Kxg8 5.Be6+ Kf8 6.Kg6 Ke7 7.Kxg7 Ke8 8.Kxf6 h5 9.Bf7+ Kf8 10.Bxh5 Kg8 11.Bf7+ Kf8 12.Bg8
+- (10.42) Depth: 19 00:00:09 19960kN
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.Qxg8+ Kxg8 5.Be6+ Kf8 6.Kg6 Ke7 7.Kxg7 Ke8 8.Kxf6 h5 9.Bf7+ Kf8 10.Bxh5 Kg8 11.Bf7+ Kf8 12.Bg8
+- (10.42) Depth: 19 00:00:13 26205kN
1.a8B
+- (10.82) Depth: 20 00:00:14 26994kN
1.a8B
+- (11.82) Depth: 20 00:00:14 27180kN
1.a8B
+- (13.82) Depth: 20 00:00:14 27455kN
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.g5 Qxe8+ 5.Bxe8 fxg5 6.hxg5 hxg5 7.Kxg5
-+ (-#2724) Depth: 20 00:00:22 47334kN
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.g5 Qxe8+ 5.Bxe8 fxg5 6.hxg5 hxg5 7.Kxg5
-+ (-#2724) Depth: 20 00:00:32 57920kN
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.g5 Qxe8+ 5.Bxe8 fxg5 6.hxg5 hxg5 7.Kxg5
-+ (-#2724) Depth: 21 00:00:45 86706kN
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.g5 Qxe8+ 5.Bxe8 fxg5 6.hxg5 hxg5 7.Kxg5
-+ (-#2724) Depth: 21 00:01:05 117mN
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.g5 Qxe8+ 5.Bxe8 fxg5 6.hxg5 hxg5 7.Kxg5
-+ (-#2724) Depth: 22 00:01:31 182mN
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.g5 Qxe8+ 5.Bxe8 fxg5 6.hxg5 hxg5 7.Kxg5
-+ (-#2724) Depth: 22 00:02:13 261mN
1.a8B Qb3 2.Bc6 Qc4 3.Bd7 Qg8 4.g5 Qxe8+ 5.Bxe8 fxg5 6.hxg5 hxg5 7.Kxg5
-+ (-#2724) Depth: 23 00:03:02 463mN

Only BUP wins

Only BUP wins

Re: Only BUP (Bishop Underpromotion?) wins

Re: Only BUP (Bishop Underpromotion?) wins

Re: Only BUP wins

Re: Only BUP wins

Re: Only BUP wins

Re: Only BUP wins

Re: Only BUP wins

Re: Only BUP wins

Re: Only BUP wins