Crunch This!

Discussion of anything and everything relating to chess playing software and machines.

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Terry McCracken
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Crunch This!

Post by Terry McCracken »

White to Play and Win

[d]r1bQ1bk1/1q3p1p/4p1pP/3pP1B1/3N1P2/2P5/5RPK/8 w - - 0 49
Terry McCracken
zullil
Posts: 6442
Joined: Tue Jan 09, 2007 12:31 am
Location: PA USA
Full name: Louis Zulli

Re: Crunch This!

Post by zullil »

Here's 10 minutes of crunching from Crafty 22.9 on a laptop:

Code: Select all

White(1): display

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

White(1): go
              time limit 10:00 (+0.00) (10:00)
              depth   time  score   variation (1)
starting thread 1
                9     0.06   0.80   Qf6 Ra3 Rc2 Qd7 Rc1 Ba6 Rb1 Qc7 Kh1
                                    Rxc3
                9->   0.09   0.80   Qf6 Ra3 Rc2 Qd7 Rc1 Ba6 Rb1 Qc7 Kh1
                                    Rxc3 (s=3)
               10     0.14   0.56   Qf6 Ra3 Rf3 Bd7 Rd3 Qc7 Rd1 Rxc3 Rb1
                                    Rc1 <HT> (s=2)
               10     0.16   0.63   Rd2 Bd7 Qf6 Ra3 Rc2 Qc7 Rb2 Rxc3 Kg1
                                    Rc1+ Kf2
               10->   0.23   0.63   Rd2 Bd7 Qf6 Ra3 Rc2 Qc7 Rb2 Rxc3 Kg1
                                    Rc1+ Kf2 (s=3)
               11     0.26   0.49   Rd2 Bd7 Qf6 Ra3 Rc2 Qc7 Rc1 Rxc3 Rb1
                                    Rd3 Nf3 <HT> (s=2)
               11     0.33   0.53   g4 Bd7 Qf6 Qc8 Rf3 Ra2+ Kg3 Qe8 Rf2
                                    Rxf2 Kxf2
               11->   0.37   0.53   g4 Bd7 Qf6 Qc8 Rf3 Ra2+ Kg3 Qe8 Rf2
                                    Rxf2 Kxf2 (s=3)
               12     0.60   0.52   g4 Bd7 Qf6 Qc8 Rf3 Ra2+ Kg3 Ra3 f5
                                    Rxc3 fxe6 Rxf3+ Kxf3 fxe6 (s=2)
               12->   0.73   0.52   g4 Bd7 Qf6 Qc8 Rf3 Ra2+ Kg3 Ra3 f5
                                    Rxc3 fxe6 Rxf3+ Kxf3 fxe6
               13     0.80     -1   g4
               13     0.97   0.01   g4 Bd7 Qf6 Qc8 Rf3 Ra2+ Kh3 Ra3 Ne2
                                    Bb5 Nd4 Bd7
               13     2.83   0.18   Qf6 Bd7 Rd2 Ra3 Rd3 Qc7 g4 Rxc3 Rd2
                                    Qc4 Kg2 Bc6 Kh2 <HT>
               13     3.21   0.63   Rb2 Qd7 Qf6 Ra7 Rb8 Rb7 Ra8 Rb2 Ra5
                                    Qc7 Rb5 Rxb5 Nxb5 <HT>
               13->   3.21   0.63   Rb2 Qd7 Qf6 Ra7 Rb8 Rb7 Ra8 Rb2 Ra5
                                    Qc7 Rb5 Rxb5 Nxb5 <HT> (s=5)
               14     3.40   0.73   Rb2 Qd7 Qf6 Ra7 Rb6 Ra6 Rb1 Ra2 Kg3
                                    Qe8 Nb5 Rc2 Nd6 Rxc3+ Kg4 (s=4)
               14->   3.69   0.73   Rb2 Qd7 Qf6 Ra7 Rb6 Ra6 Rb1 Ra2 Kg3
                                    Qe8 Nb5 Rc2 Nd6 Rxc3+ Kg4 (s=2)
               15     3.92   0.82   Rb2 Qd7 Qf6 Ra7 Rb6 Ra6 Rb1 Ra2 Kg3
                                    Qe8 Nb5 Rc2 Nd6 Qd7 Nb5
               15->   4.18   0.82   Rb2 Qd7 Qf6 Ra7 Rb6 Ra6 Rb1 Ra2 Kg3
                                    Qe8 Nb5 Rc2 Nd6 Qd7 Nb5
               16     5.58   0.62   Rb2 Qd7 Qf6 Ra7 Rb3 Rb7 Ra3 Rb1 Ra8
                                    Rb2 Ra5 Qc7 <HT>
               16->   7.42   0.62   Rb2 Qd7 Qf6 Ra7 Rb3 Rb7 Ra3 Rb1 Ra8
                                    Rb2 Ra5 Qc7 <HT> (s=2)
               17     9.68   0.56   Rb2 Qd7 Qf6 Ra7 g3 Ra3 Rb6 Ra6 Rb3
                                    Ra2+ Kh3 Ra1 Rb2 Rc1 Ne2 Ra1 Kg4 Bb7
               17->  12.35   0.56   Rb2 Qd7 Qf6 Ra7 g3 Ra3 Rb6 Ra6 Rb3
                                    Ra2+ Kh3 Ra1 Rb2 Rc1 Ne2 Ra1 Kg4 Bb7
                                    (s=2)
               18    21.58   0.55   Rb2 Qd7 Qf6 Ra7 Rb1 Rb7 Rc1 Rc7 Kg3
                                    Ba6 Kf3 Qe8 g3 Bd3 Ke3 Be4 c4 Rc5
               18->  23.87   0.55   Rb2 Qd7 Qf6 Ra7 Rb1 Rb7 Rc1 Rc7 Kg3
                                    Ba6 Kf3 Qe8 g3 Bd3 Ke3 Be4 c4 Rc5
               19    26.68   0.49   Rb2 Qd7 Qf6 Ra7 Rb1 Rb7 Rc1 Rb2 Ra1
                                    Qb7 Rf1 Bd7 Rf3 Ba4 Kg3 Qc7 Rd3 Qd7
                                    Kf3
               19->  31.48   0.49   Rb2 Qd7 Qf6 Ra7 Rb1 Rb7 Rc1 Rb2 Ra1
                                    Qb7 Rf1 Bd7 Rf3 Ba4 Kg3 Qc7 Rd3 Qd7
                                    Kf3 (s=2)
               20    41.41   0.57   Rb2 Qd7 Qf6 Ra7 Rb6 Ra6 Rb1 Ra7 Rb2
                                    Rb7 Rc2 Rb1 Ra2 Rc1 Ra3 Rb1 Ra8 <HT>
               20->  47.68   0.57   Rb2 Qd7 Qf6 Ra7 Rb6 Ra6 Rb1 Ra7 Rb2
                                    Rb7 Rc2 Rb1 Ra2 Rc1 Ra3 Rb1 Ra8 <HT>
               21    54.64   0.57   Rb2 Qd7 Qf6 Ra7 Rb6 Ra6 Rb1 Ra7 Rb2
                                    Rb7 Rc2 Rb1 Ra2 Rc1 Ra3 Rb1 Ra8 <HT>
               21->   1:04   0.57   Rb2 Qd7 Qf6 Ra7 Rb6 Ra6 Rb1 Ra7 Rb2
                                    Rb7 Rc2 Rb1 Ra2 Rc1 Ra3 Rb1 Ra8 <HT>
               22     1:18   0.57   Rb2 Qd7 Qf6 Ra7 Rb6 Ra6 Rb1 Ra7 Rb2
                                    Rb7 Rc2 Rb1 Ra2 Rc1 Ra3 Rb1 Ra8 <HT>
               22->   1:34   0.57   Rb2 Qd7 Qf6 Ra7 Rb6 Ra6 Rb1 Ra7 Rb2
                                    Rb7 Rc2 Rb1 Ra2 Rc1 Ra3 Rb1 Ra8 <HT>
               23     2:55   0.45   Rb2 Qd7 Qf6 Ra7 Rb6 Ra6 Rb1 Ra7 Rb2
                                    Rb7 Ra2 Rc7 Rc2 <HT>
               23->   3:57   0.45   Rb2 Qd7 Qf6 Ra7 Rb6 Ra6 Rb1 Ra7 Rb2
                                    Rb7 Ra2 Rc7 Rc2 <HT>
              time=10:00  mat=0  n=2863516664  fh=89%  nps=4.8M
terminating SMP processes.
White(1): Rb2 
              time used:  10:00
User avatar
AdminX
Posts: 6363
Joined: Mon Mar 13, 2006 2:34 pm
Location: Acworth, GA

Re: Crunch This!

Post by AdminX »

Cruched and checked!

PS: I don't know why Hort won this game. Was it a win on time, did Rodriguez resign, or are the game results wrong in my database?

Analysis by Deep Rybka 3 64-bit:

1.Rb2 Qd7[] 2.Qxd7 Bxd7 3.Rb7 Bc8 4.Rc7 Ba6 5.Nc6 Rc8 6.Ne7+ Bxe7[] 7.Rxe7 Kf8 8.Ra7 Bd3[] 9.Be7+ Ke8[] 10.Bb4 g5[] 11.Re7+ Kd8[] 12.Rxf7 gxf4[] 13.Rxf4 Rc4[] 14.Kg3 Kd7 15.Rxc4 dxc4 16.Kf4
+/= (0.41) Depth: 20 00:00:00 0kN
+/= (0.38) Depth: 22 00:00:36 7182kN

[d]r1bQ1bk1/1q3p1p/4p1pP/3pP1B1/3N1P2/2P5/5RPK/8 w - - 0 49

[Event "OHRA-B"]
[Site "Amsterdam"]
[Date "1987.??.??"]
[Round "2"]
[White "Hort, Vlastimil"]
[Black "Rodriguez Cespedes, Amador"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "2570"]
[BlackElo "2515"]
[PlyCount "109"]
[EventDate "1987.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]

1. d4 Nf6 2. Nf3 e6 3. Bf4 c5 4. e3 Nc6 5. Nc3 cxd4 6. exd4 Be7 7. a3 O-O 8.
Bd3 b6 9. O-O Bb7 10. Re1 Rc8 11. Qe2 Re8 12. Rad1 d5 13. Bb5 Nd7 14. Bg3 Ra8
15. Nb1 a6 16. Bd3 b5 17. c3 Nb6 18. Nbd2 Nc4 19. Nb3 Bc8 20. h4 Ra7 21. h5 a5
22. Ne5 N6xe5 23. dxe5 Ba6 24. Nd4 Qb6 25. Bf4 b4 26. axb4 axb4 27. Bxc4 Bxc4
28. Qg4 Ra2 29. Rd2 Bc5 30. Red1 bxc3 31. bxc3 Rxd2 32. Rxd2 Qa5 33. Rc2 Qa4
34. Rc1 Qd7 35. Bg5 Kh8 36. h6 g6 37. Qf4 Be7 38. Ra1 Bf8 39. Kh2 Kg8 40. Qf6
Rc8 41. Qf3 Qb7 42. Re1 Qd7 43. Qf6 Ba6 44. Re3 Rc4 45. f4 Bc8 46. Rf3 Ra4 47.
Rf2 Qb7 48. Qd8 Ra8 49. Rb2 Qd7 50. Qxd7 Bxd7 51. Rb7 Be8 52. Rc7 Ba4 53. Kg3
Be8 54. Nc2 Bb5 55. Ne3 1-0
"Good decisions come from experience, and experience comes from bad decisions."
__________________________________________________________________
Ted Summers
Kaj Soderberg

Re: Crunch This!

Post by Kaj Soderberg »

Beautiful position to crunch Terry, with plenty of interesting manouvering going on. Thanks for that. A real treat for a chess player.

Cheers,
Kaj
Terry McCracken
Posts: 16465
Joined: Wed Aug 01, 2007 4:16 am
Location: Canada

Re: Crunch This!

Post by Terry McCracken »

AdminX wrote:Cruched and checked!

PS: I don't know why Hort won this game. Was it a win on time, did Rodriguez resign, or are the game results wrong in my database?

Analysis by Deep Rybka 3 64-bit:

1.Rb2 Qd7[] 2.Qxd7 Bxd7 3.Rb7 Bc8 4.Rc7 Ba6 5.Nc6 Rc8 6.Ne7+ Bxe7[] 7.Rxe7 Kf8 8.Ra7 Bd3[] 9.Be7+ Ke8[] 10.Bb4 g5[] 11.Re7+ Kd8[] 12.Rxf7 gxf4[] 13.Rxf4 Rc4[] 14.Kg3 Kd7 15.Rxc4 dxc4 16.Kf4
+/= (0.41) Depth: 20 00:00:00 0kN
+/= (0.38) Depth: 22 00:00:36 7182kN

[d]r1bQ1bk1/1q3p1p/4p1pP/3pP1B1/3N1P2/2P5/5RPK/8 w - - 0 49

[Event "OHRA-B"]
[Site "Amsterdam"]
[Date "1987.??.??"]
[Round "2"]
[White "Hort, Vlastimil"]
[Black "Rodriguez Cespedes, Amador"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "2570"]
[BlackElo "2515"]
[PlyCount "109"]
[EventDate "1987.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]

1. d4 Nf6 2. Nf3 e6 3. Bf4 c5 4. e3 Nc6 5. Nc3 cxd4 6. exd4 Be7 7. a3 O-O 8.
Bd3 b6 9. O-O Bb7 10. Re1 Rc8 11. Qe2 Re8 12. Rad1 d5 13. Bb5 Nd7 14. Bg3 Ra8
15. Nb1 a6 16. Bd3 b5 17. c3 Nb6 18. Nbd2 Nc4 19. Nb3 Bc8 20. h4 Ra7 21. h5 a5
22. Ne5 N6xe5 23. dxe5 Ba6 24. Nd4 Qb6 25. Bf4 b4 26. axb4 axb4 27. Bxc4 Bxc4
28. Qg4 Ra2 29. Rd2 Bc5 30. Red1 bxc3 31. bxc3 Rxd2 32. Rxd2 Qa5 33. Rc2 Qa4
34. Rc1 Qd7 35. Bg5 Kh8 36. h6 g6 37. Qf4 Be7 38. Ra1 Bf8 39. Kh2 Kg8 40. Qf6
Rc8 41. Qf3 Qb7 42. Re1 Qd7 43. Qf6 Ba6 44. Re3 Rc4 45. f4 Bc8 46. Rf3 Ra4 47.
Rf2 Qb7 48. Qd8 Ra8 49. Rb2 Qd7 50. Qxd7 Bxd7 51. Rb7 Be8 52. Rc7 Ba4 53. Kg3
Be8 54. Nc2 Bb5 55. Ne3 1-0
It's an endgame win that computers miss.
Terry McCracken
Terry McCracken
Posts: 16465
Joined: Wed Aug 01, 2007 4:16 am
Location: Canada

Re: Crunch This!

Post by Terry McCracken »

Kaj Soderberg wrote:Beautiful position to crunch Terry, with plenty of interesting manouvering going on. Thanks for that. A real treat for a chess player.

Cheers,
Kaj
You're more than welcome! I love positions like this as it shows what humans understand and computers don't.

Occasionally intelligence is required in chess rather than sheer machine muscle. :wink: Many endgame studies are far too difficult to be crunched by force.

When computers are able to handle all problems that arise in chess the game will be exhausted.
Terry McCracken
User avatar
AdminX
Posts: 6363
Joined: Mon Mar 13, 2006 2:34 pm
Location: Acworth, GA

Re: Crunch This!

Post by AdminX »

Terry McCracken wrote:
AdminX wrote:Cruched and checked!

PS: I don't know why Hort won this game. Was it a win on time, did Rodriguez resign, or are the game results wrong in my database?

Analysis by Deep Rybka 3 64-bit:

1.Rb2 Qd7[] 2.Qxd7 Bxd7 3.Rb7 Bc8 4.Rc7 Ba6 5.Nc6 Rc8 6.Ne7+ Bxe7[] 7.Rxe7 Kf8 8.Ra7 Bd3[] 9.Be7+ Ke8[] 10.Bb4 g5[] 11.Re7+ Kd8[] 12.Rxf7 gxf4[] 13.Rxf4 Rc4[] 14.Kg3 Kd7 15.Rxc4 dxc4 16.Kf4
+/= (0.41) Depth: 20 00:00:00 0kN
+/= (0.38) Depth: 22 00:00:36 7182kN

[d]r1bQ1bk1/1q3p1p/4p1pP/3pP1B1/3N1P2/2P5/5RPK/8 w - - 0 49

[Event "OHRA-B"]
[Site "Amsterdam"]
[Date "1987.??.??"]
[Round "2"]
[White "Hort, Vlastimil"]
[Black "Rodriguez Cespedes, Amador"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "2570"]
[BlackElo "2515"]
[PlyCount "109"]
[EventDate "1987.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]

1. d4 Nf6 2. Nf3 e6 3. Bf4 c5 4. e3 Nc6 5. Nc3 cxd4 6. exd4 Be7 7. a3 O-O 8.
Bd3 b6 9. O-O Bb7 10. Re1 Rc8 11. Qe2 Re8 12. Rad1 d5 13. Bb5 Nd7 14. Bg3 Ra8
15. Nb1 a6 16. Bd3 b5 17. c3 Nb6 18. Nbd2 Nc4 19. Nb3 Bc8 20. h4 Ra7 21. h5 a5
22. Ne5 N6xe5 23. dxe5 Ba6 24. Nd4 Qb6 25. Bf4 b4 26. axb4 axb4 27. Bxc4 Bxc4
28. Qg4 Ra2 29. Rd2 Bc5 30. Red1 bxc3 31. bxc3 Rxd2 32. Rxd2 Qa5 33. Rc2 Qa4
34. Rc1 Qd7 35. Bg5 Kh8 36. h6 g6 37. Qf4 Be7 38. Ra1 Bf8 39. Kh2 Kg8 40. Qf6
Rc8 41. Qf3 Qb7 42. Re1 Qd7 43. Qf6 Ba6 44. Re3 Rc4 45. f4 Bc8 46. Rf3 Ra4 47.
Rf2 Qb7 48. Qd8 Ra8 49. Rb2 Qd7 50. Qxd7 Bxd7 51. Rb7 Be8 52. Rc7 Ba4 53. Kg3
Be8 54. Nc2 Bb5 55. Ne3 1-0
It's an endgame win that computers miss.
Not just Computers! :lol: I am now going to take a 2nd look.

Thanks ...
"Good decisions come from experience, and experience comes from bad decisions."
__________________________________________________________________
Ted Summers
User avatar
M ANSARI
Posts: 3733
Joined: Thu Mar 16, 2006 7:10 pm

Re: Crunch This!

Post by M ANSARI »

I would dummy the Queen with rook to b2 and then Nc6 looks winning because if white bishop moves to c7 it is checkmate. Although I have to admit I did not check it with a computer yet. I guess queen doesn't have to take rook and that seems to complicate things, but then black loses a tempo and white puts another piece in the attack.

I'll check it later on my Octa.
User avatar
AdminX
Posts: 6363
Joined: Mon Mar 13, 2006 2:34 pm
Location: Acworth, GA

Re: Crunch This!

Post by AdminX »

M ANSARI wrote:I would dummy the Queen with rook to b2 and then Nc6 looks winning because if white bishop moves to c7 it is checkmate. Although I have to admit I did not check it with a computer yet. I guess queen doesn't have to take rook and that seems to complicate things, but then black loses a tempo and white puts another piece in the attack.

I'll check it later on my Octa.
I spot 49. Rb2 with no problems, I see the win if 49. ... Qxb2. However if 49 ... Qd7, well lets just say I am still looking for the win.
"Good decisions come from experience, and experience comes from bad decisions."
__________________________________________________________________
Ted Summers
User avatar
michiguel
Posts: 6401
Joined: Thu Mar 09, 2006 8:30 pm
Location: Chicago, Illinois, USA

Re: Crunch This!

Post by michiguel »

Terry McCracken wrote:White to Play and Win

[d]r1bQ1bk1/1q3p1p/4p1pP/3pP1B1/3N1P2/2P5/5RPK/8 w - - 0 49
This position leads to a more beautiful and forceful finale :-)
white to play and win

[d]r1bQ1bk1/1q3p1p/4pBpP/3pP3/3N1P2/2P5/5RPK/8 w - -

Miguel