Mate in 31 (Zugzwang)

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F.Huber
Posts: 903
Joined: Thu Mar 09, 2006 4:50 pm
Location: Austria
Full name: Franz Huber

Re: Mate in 31 (Zugzwang)

Post by F.Huber »

peter wrote: Analysis by Sting SF 4.7 64bit:
1.Sc5
+- (#13 ++) Tiefe: 22 00:00:06 37234kN
1.Sc5 Kf6 2.Sd7+ Kg5 3.Sf8 Kf6 4.Ke4 Kg5 5.Le2 Kf6 6.Kd5 Kg5 7.Se6+ Kf6 8.Sc5 Kg5 9.Se4+ Kf4 10.Sf2 Kg5 11.Ke5 Lf4+ 12.Ke6
+- (#13) Tiefe: 22/44 00:00:06 37234kN
...
Yes Peter, much better than the so-called 'top' engines! :mrgreen:

Franz
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peter
Posts: 3629
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: Mate in 31 (Zugzwang)

Post by peter »

F.Huber wrote: Yes Peter, much better than the so-called 'top' engines! :mrgreen:
Edited my posting above in the meantime and here is the change of mind of SF dev now:


8/1p4p1/6P1/P3kN1P/2B1N1P1/pPp2K2/1p1b4/rn6 w - - 0 1

Analysis by Stockfish 040914 64 SSE4.224:

1.Sc5 Kf6 2.a6 Le3 3.Sxe3 c2 4.axb7 c1D 5.b8D Dh1+ 6.Kf2 Dh4+ 7.Kg2 Dh1+ 8.Kxh1 Sc3+ 9.Kh2 Th1+ 10.Kg3 Tg1+ 11.Kf4 Se2+ 12.Lxe2 Tf1+ 13.Lxf1 b1D 14.Sd5#
+- (#14) Tiefe: 57/47 00:08:02 11956MN
1.Sc5 Kf6 2.Sd7+ Kg5 3.Sf8 Kf6 4.Ke4 Kg5 5.Le2 Kf6 6.Kd5 Kg5 7.Se6+ Kf6 8.Sc5 Kg5 9.Se4+ Kf4 10.Sf2 Kg5 11.Ke5 Lf4+ 12.Ke6 c2 13.Sh3#
+- (#13) Tiefe: 58/47 00:09:20 13882MN

:)
Peter.
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Ajedrecista
Posts: 2264
Joined: Wed Jul 13, 2011 9:04 pm
Location: Madrid, Spain.

Re: Mate in 13.

Post by Ajedrecista »

Hello Franz:

Code: Select all

FEN: 8/1p4p1/6P1/P3kN1P/2B1N1P1/pPp2K2/1p1b4/rn6 w - - 0 1 

ChestUCI_52:
FEN: 8/1p4p1/6P1/P3kN1P/2B1N1P1/pPp2K2/1p1b4/rn6 w - -   (9+9)
Stellungs-Analyse:  C0/R0/K1/P5/X11   W:8/33
AutoTurbo-Suche nach Spezial-Matt [C1/R0/K0/P0/X0] in 20 ...  (Hash=64MB)
AutoTurbo-Suche nach Spezial-Matt [C0/R1/K0/P0/X0] in 20 ...  (Hash=64MB)
 13/20	00:00	           0	0	+M13	Ne4c5
 13/13	00:00	      33.840	735.652	+M13	Ne4c5 Ke5f6 Nc5d7+ Kf6g5 Nd7f8 Kg5f6 Kf3e4 Kf6g5 Bc4e2 Kg5f6 Ke4d5 Kf6g5 Nf8e6+ Kg5f6 Ne6c5 Kf6g5 Nc5e4+ Kg5f4 Ne4f2 Kf4g5 Kd5e5 Bd2f4+ Ke5e6 c3c2 Nf2h3+
AutoTurbo-Suche nach Spezial-Matt [C0/R1/K2/P0/X0] in 13 ...  (Hash=64MB)
 13/13	00:00	      33.840	735.652	+M13	Ne4c5
 13/13	00:00	       9.015	290.806	+M13	Ne4c5 Ke5f6 Nc5d7+ Kf6g5 Nd7f8 Kg5f6 Kf3e4 Kf6g5 Bc4e2 Kg5f6 Ke4d5 Kf6g5 Nf8e6+ Kg5f6 Ne6c5 Kf6g5 Nc5e4+ Kg5f4 Ne4f2 Kf4g5 Kd5e5 Bd2f4+ Ke5e6 c3c2 Nf2h3+
AutoTurbo-Suche nach Spezial-Matt [C0/R1/K2/P6/X0] in 13 ...  (Hash=64MB)
 13/13	00:00	       9.015	290.806	+M13	Ne4c5
 13/13	00:00	       6.893	459.533	+M13	Ne4c5 Ke5f6 Nc5d7+ Kf6g5 Nd7f8 Kg5f6 Kf3e4 Kf6g5 Bc4e2 Kg5f6 Ke4d5 Kf6g5 Nf8e6+ Kg5f6 Ne6c5 Kf6g5 Nc5e4+ Kg5f4 Ne4f2 Kf4g5 Kd5e5 Bd2f4+ Ke5e6 c3c2 Nf2h3+
AutoTurbo-Suche nach Spezial-Matt [C0/R1/K2/P6/X15] in 13 ...  (Hash=64MB)
 13/13	00:00	       6.893	459.533	+M13	Ne4c5
 13/13	00:00	       6.893	459.533	+M13	Ne4c5 Ke5f6 Nc5d7+ Kf6g5 Nd7f8 Kg5f6 Kf3e4 Kf6g5 Bc4e2 Kg5f6 Ke4d5 Kf6g5 Nf8e6+ Kg5f6 Ne6c5 Kf6g5 Nc5e4+ Kg5f4 Ne4f2 Kf4g5 Kd5e5 Bd2f4+ Ke5e6 c3c2 Nf2h3+
Matt in 13 gefunden !  (1 Lösung in 00:00)
 13/13	00:00	       6.893	459.533	+M13	Ne4c5 Ke5f6 Nc5d7+ Kf6g5 Nd7f8 Kg5f6 Kf3e4 Kf6g5 Bc4e2 Kg5f6 Ke4d5 Kf6g5 Nf8e6+ Kg5f6 Ne6c5 Kf6g5 Nc5e4+ Kg5f4 Ne4f2 Kf4g5 Kd5e5 Bd2f4+ Ke5e6 c3c2 Nf2h3+
Wow! 15 ms in my 8-year old computer. Thanks for your database updates.

Regards from Spain.

Ajedrecista.
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Paloma
Posts: 1243
Joined: Thu Dec 25, 2008 9:07 pm
Full name: Herbert L

Re: Mate in 31 (Zugzwang)

Post by Paloma »

F.Huber wrote:
BTW, I've updated again my ChestUCI database with 25 new problems (containing now 6525 mates) ...

Franz
Thanks Franz
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Master Om
Posts: 456
Joined: Wed Nov 24, 2010 10:57 am
Location: INDIA

Re: Mate in 31 (Zugzwang)

Post by Master Om »

F.Huber wrote:Here's another mate problem that I've found in the previous issue of "Die Schwalbe":
it is listed as #19, but ChestUCI found immediately (0 sec!) a #13 (in AutoTurbo mode)!
(I wonder why they don't test their mate problems before publishing them)

[d]8/1p4p1/6P1/P3kN1P/2B1N1P1/pPp2K2/1p1b4/rn6 w - -
What are the top engines Komodo or Stockfish thinking? ;)

BTW, I've updated again my ChestUCI database with 25 new problems (containing now 6525 mates) ...

Franz

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Analysis "StaticFish 130914IPx 64 SSE4.2"]
[AnalysisTime "125"]
[FEN "8/1p4p1/6P1/P3kN1P/2B1N1P1/pPp2K2/1p1b4/rn6 w - - 0 1"]
[SetUp "1"]

1. Nc5 Kf6 2. a6 Be3 3. Nxe3 c2 4. axb7 c1=Q 5. b8=Q Qh1+ 6. Kf2 Qh4+ 7. Kg2
Qh1+ 8. Kxh1 Nc3+ 9. Kh2 Rh1+ 10. Kg3 Ne2+ 11. Bxe2 Rh3+ 12. Kxh3 b1=Q 13.
Nd5+ Kg5 14. Qf4# {(0:02:05) 988007kN}{[%eval 29986,41,StaticFish 130914IPx 64
SSE4.2][%meval 125s]} *


[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Analysis "Deep Rybka 4.1 SSE42 x64"]
[AnalysisTime "99"]
[FEN "8/1p4p1/6P1/P3kN1P/2B1N1P1/pPp2K2/1p1b4/rn6 w - - 0 1"]
[SetUp "1"]

1. Nc5 Kf6 2. a6 Be3 3. Nxe3 c2 4. axb7 c1=Q 5. b8=Q Qh1+ 6. Kf2 Qh4+ 7. Kg2
Qh1+ 8. Kxh1 Nc3+ 9. Kh2 Rh1+ 10. Kg3 Ne2+ 11. Bxe2 Rxh5 12. gxh5 b1=Q 13.
Nd5+ Kg5 14. Qf4# {(0:01:39) 62328kN}{[%eval 29986,23,Deep Rybka 4.1 SSE42
x64][%meval 99s]} *
Always Expect the Unexpected
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peter
Posts: 3629
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: Mate in 31 (Zugzwang)

Post by peter »

Master Om wrote: 1. Nc5 Kf6 2. a6 Be3 3. Nxe3 c2 4. axb7 c1=Q 5. b8=Q Qh1+ 6. Kf2 Qh4+ 7. Kg2 Qh1+ 8. Kxh1 Nc3+ 9. Kh2 Rh1+ 10. Kg3 Ne2+ 11. Bxe2 Rh3+ 12. Kxh3 b1=Q 13. Nd5+ Kg5 14. Qf4#
Hi Master Om!
2.a6 misses the one move shorter mate that 2.Nd7+ gives.
http://www.talkchess.com/forum/viewtopi ... 90&t=53682
Peter.
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