Which other engines can solve the mate in 10?

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chessica
Posts: 1162
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Which other engines can solve the mate in 10?

Post by chessica »

[d]8/6Qp/p5pP/P2n4/8/5p2/p2K1P2/1k2Bb2 w - - 0 1
#10
1T MV=1
Colossus2026c 24 1,577"
ShashChess42 42/68 10,839"
Horizon+ 62/20 53,752"
Stockfish19 105/22 6' 37,7"
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cc2150dx
Posts: 483
Joined: Sat Nov 30, 2013 9:51 am
Full name: Jason Coombs

Re: Which other engines can solve the mate in 10?

Post by cc2150dx »

FEN: 8/6Qp/p5pP/P2n4/8/5p2/p2K1P2/1k2Bb2 w - - 0 1

Lc0-dag-preview:

16/35 00:12 89k 7k +0.10 1.Qb7+ Bb5 2.Qc8 a1N 3.Qc1+ Ka2 4.Qd1 Nb3+ 5.Kc2 Na1+ 6.Kc1 Nb3+ 7.Kc2 Na1+ 8.Kc1 Nb3+ 9.Kc2
16/35 00:12 90k 7k +M10 1.Qa1+ Kxa1 2.Kc1 Bd3 3.Bd2 Bf5 4.Bg5 Be4 5.Bh4 g5 6.Bxg5 Bf5 7.Bh4 Bg6 8.Bg3 Nc3 9.Be5 Bc2 10.Bxc3+
15/35 00:12 91k 7k +M10 1.Qa1+ Kxa1 2.Kc1 Bd3 3.Bd2 Bf5 4.Bg5 Be4 5.Bh4 g5 6.Bxg5 Bf5 7.Bh4 Bg6 8.Bg3 Nc3 9.Be5 Bc2 10.Bxc3+
14/35 00:12 98k 8k +M10 1.Qa1+ Kxa1 2.Kc1 Bd3 3.Bd2 Bf5 4.Bg5 Be4 5.Bh4 g5 6.Bxg5 Bf5 7.Bh4 Bg6 8.Bg3 Nc3 9.Be5 Bc2 10.Bxc3+
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peter
Posts: 3696
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: Which other engines can solve the mate in 10?

Post by peter »

Sivkov N.:

Code: Select all

8/6Qp/p5pP/P2n4/8/5p2/p2K1P2/1k2Bb2 w - -

Engine: Crystal9 (1024 MB)
von the Stockfish developers (see AUTHORS f

33/19  0:01   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 La4 
                       4.Lg5 Le8 5.Lh4 g5 6.Lxg5 Lf7 7.Lh4 Lg6 
                       8.Lg3 Sf4 9.Lxf4 Lb1 10.Le5+ (9.572.232) 7794 
...

83/19  0:12   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 La4 
                       4.Lg5 Le8 5.Lh4 g5 6.Lxg5 Lf7 7.Lh4 Lg6 
                       8.Lg3 Sf4 9.Lxf4 Lb1 10.Le5+ (147.423.567) 11534 

Bester Zug: Dg7-a1 Zeit: 0:12.953 min  K/s: 11.534.587  Knoten: 147.423.567
Of course single thread too, regards
Peter.
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Ajedrecista
Posts: 2290
Joined: Wed Jul 13, 2011 9:04 pm
Location: Madrid, Spain.

Re: Which other engines can solve the mate in 10?

Post by Ajedrecista »

Hello:

What a problem! I immediately found 1.- Qa1+, Kxa1; 2.- Kc1 (what else?), but did not see the bishop tour to enter the a1-h8 diahonal in the right square.

Chest 5.2 mate solver finds the #10 quickly with default settings:

Code: Select all

FEN: 8/6Qp/p5pP/P2n4/8/5p2/p2K1P2/1k2Bb2 w - - 0 1

ChestUCI:
FEN: 8/6Qp/p5pP/P2n4/8/5p2/p2K1P2/1k2Bb2 w - -   (6+8)
Stellungs-Analyse:  C0/R0/K1/P4/X19   W:2/18
Suche nach Matt in 10 ...  (Hash=64MB)
  10	00:02	     718.093	729.769	+M10	Qg7a1+
Suche abgeschlossen ...  (Zeit=2.33s)
Matt in 10 gefunden !  (1 Lösung in 00:02)
 10/10	00:03	   1.772.602	761.426	+M10	Qg7a1+ Kb1xa1 Kd2c1 Bf1g2 Be1d2 Bg2h3 Bd2g5 Bh3g2 Bg5h4 g6g5 Bh4xg5 Bg2h3 Bg5h4 Bh3g2 Bh4g3 Nd5c3 Bg3e5 Bg2h3 Be5xc3+
A post at TalkChess points to Sivkov as the author and date 1927.09.07, but I could not find anything more. Arves excellent site gives the full name Nikolay Ivanovich Sivkov.

------------

OTOH, I found a similar theme thanks to the chess column of the best selling Spanish newspaper El País (link), with the following PGN in Spanish language:

https://share.chessbase.com/SharedGames ... n3FW72Raab

[pgn][Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Estudio de A. Kalinin"]
[Black "'Shájmaty URSS', 1957"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/2R5/3n4/1p4p1/1P6/1P6/p2K4/1k2B3 w - - 0 1"]
[PlyCount "17"]
[GameId "2160108261130377"]

{Disfrutemos de un pasmoso final artístico, resaltado en el número 139 de la revista Finales y Temas (de José Copié), y creado por uno de los autores más prolíficos. Alexánder Konstantínovich Kalinin (Volgogrado, 1914-2004) compuso 50 estudios y 320 problemas, que han merecido 23 primeros premios. El que hoy nos ocupa es una obra de arte tan bella como sibilina. Un análisis somero de la posición inicial lleva a deducir que la torre dará jaque perpetuo o tendrá que inmolarse para evitar la coronación en a1, dado que el caballo podrá saltar oportunamente a e4 para reforzar la defensa. Sin embargo, el enunciado de Kalinin es tajante: "Blancas juegan y ganan". También es cierto que la única manera de hacerlo está sumamente oculta:} 1. Rc1+ Kb2 2. Ra1 $3 {(la primera clave, tan rebuscada y profunda que incluso los amigos inhumanos tardan mucho en comprenderla)} Kxa1 $1 ({(esta defensa es la más difícil de rebatir; la alternativa} 2... Ne4+ {tiene muchas ramificaciones; lo más importante:} 3. Kd3 Kxa1 ({-o bien} 3... Nd6 4. Bc3+ Kxb3 5. Rg1 {, con una victoria muy fácil-}) 4. Kc2 $1 {, que lleva a la línea principal; tampoco resiste mucho}) (2... Kxb3 {por} 3. Kd3 Nc4 4. Bc3 Nb2+ 5. Kd4 Na4 6. Bd2 g4 ({-o bien} 6... Kb2 7. Kd3 Kxa1 8. Kc2 g4 9. Be3 {y mate-}) 7. Bf4 Nc3 8. Be5 g3 9. Ke3 Nd5+ ({-o bien} 9... g2 10. Rg1 Kxb4 11. Kd3 Nd5 12. Kd2 Nb6 13. Bd4 Nc4+ 14. Kc2 Ka3 15. Kc3 Na5 16. Bg7 $1 Nc4 17. Bf6 Ne3 18. Be7+ Ka4 19. Kb2 {, ganando-}) 10. Kd3 Nxb4+ 11. Kd2 Nc6 12. Bf6 Na5 13. Rg1 Nc4+ 14. Kc1 {, ganando)}) 3. Kc1 $1 Ne4 4. Kc2 $3 {(la segunda clave es forzar g4 -el caballo está atado a evitar el mate en c3- para permitir la maniobra ganadora del alfil)} g4 5. Bh4 $1 g3 6. Bd8 g2 7. Bc7 $1 ({(pero no} 7. Bb6 $2 {por} Nc5 $3 8. Bxc5 g1=Q 9. Bxg1 {, ¡y tablas por ahogado!)}) 7... g1=Q 8. Be5+ Nc3 9. Bxc3# {, mate.} 1-0[/pgn]

The PGN points to a reprint at issue 139 of Finales... y Temas magazine in Spanish language, where both the PGN and the magazine (page 2992 of the magazine, this is, page 3 of the PDF) tells about author Aleksandr Konstantinovich Kalinin and published at Shakhmaty v SSSR magazine in 1957.

You can note in the mainline that after 8.- Be5+, the checkmate can be delayed a move with 8.- ..., Qd4; 9.- Bxd4+ before we reach the common final moves of 9.- ..., Nc3; 10.- Bxc3#. However, Chest 5.2 mate solver did not find #10 with default settings. Probably not a forced checkmate but a winning endgame after 1.- Rc1+, Kb2; 2.- Ra1, Nf5; 3.- Bf2, deviating from the given 2.- ..., Kxa1; 3.- Kc1.

Regards from Spain.

Ajedrecista.
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peter
Posts: 3696
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: Which other engines can solve the mate in 10?

Post by peter »

In HHdbVII it's given like this:
[pgn][Event "no ty"]
[Site "; Izvestia#216 7-9-1927"]
[Date "1927.09.07"]
[Round "?"]
[White "Sivkov=N"]
[Black "(+1043.35d2b1)"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/6Qp/p5pP/P2n4/8/5p2/p2K1P2/1k2Bb2 w - - 0 1"]
[PlyCount "15"]
[GameId "2373949365461771"]
[EventDate "1927.09.07"]

{source: Izvestia#216 7-9-1927} 1. Qa1+ Kxa1 2. Kc1 g5 3. Bd2 g4 4. Bg5 g3 5. Bh4 g2 6. Bg3 g1=Q 7. Be5+ Nc3 8. Bxc3# 1-0
[/pgn]
So the longest DTM with Bishop- move at 2nd for Black isn't even mentioned there, only the for the author apparently more thematic 2...g5 (!?). We once in a while can see well the difference between composing puzzles for human beings and (mis)using them for "engine-testing"
:)
Peter.
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Eelco de Groot
Posts: 4765
Joined: Sun Mar 12, 2006 2:40 am
Full name:   Eelco de Groot

Re: Which other engines can solve the mate in 10?

Post by Eelco de Groot »

A bit surprising perhaps is the difference between Rebel with EAS (EAS 3.0 and old version of search) and Rebel without (version 17 with faster search) I think Rebel could accomodate the EAS network (needs recompile) and it clearly would help, even with matestudies!
I did not try other versions, like Rebel Maniac or Tal Assassin too scary :)

Rebel with EAS:

[d]8/6Qp/p5pP/P2n4/8/5p2/p2K1P2/1k2Bb2 w - -

Code: Select all

Engine: Rebel EAS 3.0 (1024 MB)
gemaakt door Ed Schroder & Chris Whittington (C) 200

27/49  0:01   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ 6.Kc1 Pb3+ (814.389) 478 

28/35  0:02   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ 6.Kc1 Pb3+ (1.234.320) 499 

29/48  0:03   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ 6.Kc1 Pb3+ (1.642.587) 510 

30/42  0:04   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ 6.Kc1 Pb3+ (2.353.361) 524 

31/50  0:05   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ 6.Kc1 Pb3+ (3.065.463) 535 

32/42  0:07   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ 6.Kc1 Pb3+ (3.907.667) 539 

33/61  0:10   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ 6.Kc1 Pb3+ (5.530.877) 548 

34/67  0:21   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ 6.Kc1 Pb3+ (11.991.854) 558 

35/61  0:42   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ 6.Kc1 Pb3+ (24.050.843) 568 

36/49  0:45   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ 6.Kc1 Pb3+ (25.669.707) 569 

37/63  0:58   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ 6.Kc1 Pb3+ (33.574.015) 569 

38/79  6:47   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ 6.Kc1 Pb3+ (239.905.796) 588 

39/63  7:29   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ 6.Kc1 Pb3+ (264.370.402) 588 

39/63  7:29   +0.10++  1.Da1+ (264.683.582) 588 

39/42  7:29   +0.20++  1.Da1+ (264.747.877) 588 

39/68  7:30   +0.35++  1.Da1+ (264.868.414) 588 

39/56  7:30   +0.58++  1.Da1+ (264.926.840) 588 

39/67  7:30   +0.92++  1.Da1+ (264.999.370) 588 

39/68  7:30   +1.43++  1.Da1+ (265.085.281) 588 

39/55  7:30   +2.20++  1.Da1+ (265.143.859) 588 

39/39  7:30   +3.35++  1.Da1+ (265.211.948) 588 

39/39  7:30   +5.06++  1.Da1+ (265.262.739) 588 

39/39  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.298.548) 588 

40/40  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.304.114) 589 

41/41  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.358.668) 589 

42/42  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.361.891) 589 

43/43  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.366.972) 589 

44/44  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.370.526) 589 

45/45  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.378.552) 589 

46/46  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.384.786) 589 

47/47  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.389.856) 589 

48/48  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.399.314) 589 

49/49  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.413.077) 589 

50/50  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.422.679) 589 

51/51  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.433.257) 589 

52/52  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.446.069) 589 

53/53  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.456.748) 589 

54/54  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.475.000) 589 

55/55  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.538.970) 589 

56/56  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.549.533) 589 

57/57  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.578.147) 589 

58/58  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.592.849) 589 

59/59  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.621.000) 589 

60/60  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.774.766) 589 

61/61  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.793.820) 589 

62/62  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.809.404) 589 

63/63  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.830.810) 589 

64/64  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.878.063) 589 

65/65  7:30   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (265.899.016) 589 

66/66  7:31   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (266.115.697) 589 

67/67  7:31   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (266.183.450) 590 

68/68  7:31   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (266.209.928) 590 

69/69  7:31   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (266.243.409) 590 

70/70  7:31   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (266.272.881) 590 

71/71  7:31   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (266.328.405) 590 

72/72  7:31   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (266.370.407) 590 

73/73  7:31   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (266.402.222) 590 

74/74  7:31   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (266.433.703) 590 

75/75  7:31   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (266.503.417) 590 

76/76  7:31   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (266.542.766) 590 

77/77  7:31   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (266.586.688) 590 

78/78  7:31   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (266.628.355) 590 

79/79  7:31   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (266.686.751) 590 

80/80  7:31   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (266.744.527) 590 

81/81  7:31   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (266.803.966) 590 

82/82  7:31   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (266.931.606) 590 

83/83  7:31   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (267.002.030) 591 

84/84  7:31   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (267.062.438) 591 

85/85  7:31   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (267.132.838) 591 

86/86  7:31   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (267.230.928) 591 

87/87  7:32   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (267.328.114) 591 

88/88  7:32   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (267.421.998) 591 

89/89  7:32   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (267.492.136) 591 

90/90  7:32   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (267.710.033) 591 

91/91  7:32   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (267.785.159) 591 

92/92  7:32   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (267.906.130) 592 

93/93  7:32   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (268.021.213) 592 

94/94  7:33   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (268.632.800) 593 

95/95  7:33   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (268.760.051) 593 

96/96  7:33   +M10     1.Da1+ Kxa1 2.Kc1 Lb5 3.Ld2 Le2 
                       4.Lg5 Lc4 5.Lh4 g5 6.Lxg5 Lb5 7.Lh4 La4 
                       8.Lg3 Pc3 9.Le5 Lc6 10.Lxc3+ (268.881.535) 593 

beste zet: Dg7-a1  tijd: 7:33.422 min  n/s: 593.269   nodes: 268.881.535
Rebel without EAS:

Code: Select all

8/6Qp/p5pP/P2n4/8/5p2/p2K1P2/1k2Bb2 w - -

Engine: Rebel-17.0 (1024 MB)
gemaakt door Ed Schroeder and Chris Whittington (C)

33/13  0:01   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (1.232.652) 819 

34/13  0:02   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (1.628.809) 801 

35/13  0:02   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (2.126.191) 793 

36/13  0:03   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (2.595.928) 791 

37/13  0:07   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (5.692.944) 786 

38/13  0:08   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (6.788.296) 790 

39/13  0:11   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (9.197.929) 782 

40/13  0:12   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (9.679.873) 783 

41/13  0:17   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (13.468.429) 788 

42/13  0:18   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (14.847.864) 787 

43/13  0:23   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (18.725.590) 782 

44/13  0:29   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (23.197.626) 784 

45/13  0:31   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (24.488.062) 785 

46/13  0:41   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (32.199.549) 783 

47/13  1:18   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (61.195.483) 778 

48/13  1:23   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (65.453.240) 779 

49/13  1:31   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (71.108.409) 781 

50/13  1:45   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (82.852.094) 785 

51/13  1:59   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (93.709.762) 784 

52/13  2:16   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (107.053.867) 786 

53/13  2:42   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (127.913.086) 785 

54/13  3:00   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (141.897.336) 786 

55/13  3:32   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (167.350.602) 788 

56/13  4:24   0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (211.843.446) 802 

57/13  16:05  0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (731.138.816) 757 

58/13  38:58  0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (1.766.040.184) 755 

59/13  52:21  0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (2.459.020.681) 782 

60/13  54:12  0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (2.550.842.736) 784 

61/13  56:48  0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (2.698.153.826) 791 

62/13  58:45  0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (2.797.066.269) 793 

63/13  77:04  0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (3.814.120.184) 824 

64/13  78:29  0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (3.885.740.172) 825 

65/13  80:18  0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (3.980.342.683) 826 

66/13  85:55  0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (4.235.455.401) 821 

67/13  89:58  0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (4.433.992.311) 821 

68/13  110:31 0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (5.475.870.026) 825 

69/13  113:27 0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (5.631.718.907) 827 

70/13  117:10 0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (5.830.904.864) 829 

71/13  154:34 0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (7.833.542.009) 844 

72/13  410:56 0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (20.440.165.989) 829 

73/13  477:50 0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (23.918.380.970) 834 

74/13  623:47 0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (31.104.419.500) 831 

75/13  668:17 0.00     1.Db7+ Lb5 2.Dc8 a1P 3.Dc1+ Ka2 
                       4.Dd1 Pb3+ 5.Kc2 Pa1+ (33.486.885.332) 835
Debugging is twice as hard as writing the code in the first
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
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