How long until checkmate in 9 moves?

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

Moderator: Ras

Vinvin
Posts: 5298
Joined: Thu Mar 09, 2006 9:40 am
Full name: Vincent Lejeune

Re: How long until checkmate in 9 moves?

Post by Vinvin »

16 seconds for Houdidit 6.03 1 thread. 1 second with 16 threads

Code: Select all

Houdidit 6.03-modern:
...
 15/63	00:00	 2.766k	2.883k	+34,49	17.Bd3 Qf6 18.Qh5+ g6 19.Qh6 Ra4 20.Bxf6 Kxf6 21.Bxg6 Rg4 22.Bh5+ Rg6 23.Bxg6 hxg6 24.Qxh8+ Kf7 25.Ne5+ Ke7
 16/63	00:01	 3.673k	2.897k	+M13	17.Bd3 Qf6 18.Qh5+ g6 19.Qh6 Nc6 20.Bxf6 Kxf6 21.Rhe1 Ra4 22.Bxg6 Rg4 23.Bh5+ Rg6 24.Bxg6 hxg6 25.Qxh8+ Kf5 26.dxc6 g5 27.Nbd4+
 17/63	00:01	 3.814k	2.880k	+M13	17.Bd3 Qf6 18.Qh5+ g6 19.Qh6 Nc6 20.Bxf6 Kxf6 21.Rhe1 Ra4 22.Bxg6 Rg4 23.Bh5+ Rg6 24.Bxg6 hxg6 25.Qxh8+ Kf5
 18/63	00:01	 4.036k	2.888k	+M13	17.Bd3 Qf6 18.Qh5+ g6 19.Qh6 Nc6 20.Bxf6 Kxf6 21.Rhe1 Ra4 22.Bxg6 Rg4 23.Bh5+ Rg6 24.Bxg6 hxg6 25.Qxh8+ Kf5 26.dxc6 g5 27.Nbd4+
 19/63	00:03	 11.227k	2.976k	+M11	17.Re1 Rf8 18.Bd3 Qh6 19.d6 Kg8 20.Bc4+ Kh8 21.Qe8 Qh4+ 22.g3 Qd8 23.Re7 Qxe7 24.Qxe7 Rg8 25.Bxg7+ Rxg7 26.Qe8+
 20/63	00:04	 13.587k	2.959k	+M11	17.Re1 Rf8 18.Bd3 Qe6 19.dxe6+ dxe6 20.Bxh7 Ke8 21.Qxc7 Bd7 22.Bg6+ Rf7 23.Rxe6+ Bxe6 24.Bxf7+ Bxf7 25.Re1+ Kf8 26.Qd8+ Be8
 21/63	00:05	 15.769k	2.967k	+M10	17.Re1 Rf8 18.Bd3 Qh6 19.d6 Kg8 20.Bc4+ Kh8 21.Qe8 Qh4+ 22.g3 Qd8 23.Re7 Qxe7 24.Qxe7 Rg8 25.Bxg8 Kxg8 26.Qxg7+
 21/63	00:05	 16.619k	2.954k	+M10	17.Re1 Rf8 18.Bd3 Qh6 19.d6 Kg8 20.Bc4+ Kh8 21.Qe8 Qh4+ 22.g3 Qd8 23.Re7 Qxe7 24.Qxe7 Rg8 25.Bxg8 Kxg8 26.Qxg7+
 22/63	00:05	 16.814k	2.950k	+M10	17.Re1 Rf8 18.Bd3 Qh6 19.d6 Kg8 20.Bc4+ Kh8 21.Qe8 Qh4+ 22.g3 Qd8 23.Re7 Qxe7 24.Qxe7 Rg8 25.Bxg8 Kxg8 26.Qxg7+
 22/63	00:06	 18.056k	2.946k	+M10	17.Re1 Rf8 18.Bd3 Qh6 19.d6 Kg8 20.Bc4+ Kh8 21.Qe8 Qh4+ 22.g3 Qd8 23.Re7 Qxe7 24.Qxe7 Rg8 25.Bxg8 Kxg8 26.Qxg7+
 23/63	00:06	 18.185k	2.945k	+M10	17.Re1 Rf8 18.Bd3 Qh6 19.d6 Kg8 20.Bc4+ Kh8 21.Qe8 Qh4+ 22.g3 Qd8 23.Re7 Qxe7 24.Qxe7 Rg8 25.Bxg8 Kxg8 26.Qxg7+
 23/63	00:06	 20.279k	2.949k	+M10	17.Re1 Rf8 18.Bd3 Qh6 19.d6 Kg8 20.Bc4+ Kh8 21.Qe8 Qh4+ 22.g3 Qd8 23.Re7 Qxe7 24.Qxe7 Rg8 25.Bxg8 Kxg8 26.Qxg7+
 24/63	00:06	 20.604k	2.950k	+M10	17.Re1 Rf8 18.Bd3 Qh6 19.d6 Kg8 20.Bc4+ Kh8 21.Qe8 Qh4+ 22.g3 Qd8 23.Re7 Qxe7 24.Qxe7 Rg8 25.Bxg8 Kxg8 26.Qxg7+
 24/63	00:07	 23.204k	2.938k	+M10	17.Re1 Rf8 18.Bd3 Qh6 19.d6 Kg8 20.Bc4+ Kh8 21.Qe8 Qh4+ 22.g3 Qd8 23.Re7 Qxe7 24.Qxe7 Rg8 25.Bxg8 Kxg8 26.Qxg7+
 25/63	00:08	 23.562k	2.940k	+M10	17.Re1 Rf8 18.Bd3 Qh6 19.d6 Kg8 20.Bc4+ Kh8 21.Qe8 Qh4+ 22.g3 Qd8 23.Re7 Qxe7 24.Qxe7 Rg8 25.Bxg8 Kxg8 26.Qxg7+
 25/63	00:09	 26.632k	2.957k	+M10	17.Re1 Rf8 18.Bd3 Qh6 19.d6 Kg8 20.Bc4+ Kh8 21.Qe8 Qh4+ 22.g3 Qd8 23.Re7 Qxe7 24.Qxe7 Rg8 25.Bxg8 Kxg8 26.Qxg7+
 26/63	00:09	 26.991k	2.960k	+M10	17.Re1 Rf8 18.Bd3 Qh6 19.d6 Kg8 20.Bc4+ Kh8 21.Qe8 Qh4+ 22.g3 Qd8 23.Re7 Qxe7 24.Qxe7 Rg8 25.Bxg8 Kxg8 26.Qxg7+
 26/63	00:10	 31.706k	2.971k	+M10	17.Re1 Rf8 18.Bd3 Qh6 19.d6 Kg8 20.Bc4+ Kh8 21.Qe8 Qh4+ 22.g3 Qd8 23.Re7 Qxe7 24.Qxe7 Rg8 25.Bxg8 Kxg8 26.Qxg7+
 27/63	00:10	 32.310k	2.975k	+M10	17.Re1 Rf8 18.Bd3 Qh6 19.d6 Kg8 20.Bc4+ Kh8 21.Qe8 Qh4+ 22.g3 Qd8 23.Re7 Qxe7 24.Qxe7 Rg8 25.Bxg8 Kxg8 26.Qxg7+
 27/63	00:12	 37.579k	2.999k	+M10	17.Re1 Rf8 18.Bd3 Qh6 19.d6 Kg8 20.Bc4+ Kh8 21.Qe8 Qh4+ 22.g3 Qd8 23.Re7 Qxe7 24.Qxe7 Rg8 25.Bxg8 Kxg8 26.Qxg7+
 28/63	00:12	 38.190k	3.003k	+M10	17.Re1 Rf8 18.Bd3 Qh6 19.d6 Kg8 20.Bc4+ Kh8 21.Qe8 Qh4+ 22.g3 Qd8 23.Re7 Qxe7 24.Qxe7 Rg8 25.Bxg8 Kxg8 26.Qxg7+
 28/63	00:14	 44.903k	3.021k	+M10	17.Re1 Rf8 18.Bd3 Qh6 19.d6 Kg8 20.Bc4+ Kh8 21.Qe8 Qh4+ 22.g3 Qd8 23.Re7 Qxe7 24.Qxe7 Rg8 25.Bxg8 Kxg8 26.Qxg7+
 29/63	00:15	 45.514k	3.021k	+M10	17.Re1 Rf8 18.Bd3 Qh6 19.d6 Kg8 20.Bc4+ Kh8 21.Qe8 Qh4+ 22.g3 Qd8 23.Re7 Qxe7 24.Qxe7 Rg8 25.Bxg8 Kxg8 26.Qxg7+
 29/63	00:16	 49.034k	3.041k	+M9	17.Ng5+ Kf8 18.Qf4+ Kg8 19.Bd3 Qe8 20.d6 Ra4 21.Rhe1 Qf8 22.Qxf8+ Kxf8 23.Nxh7+ Kg8 24.Bg6 Rxh7 25.Re8+

Code: Select all

Houdidit 6.03-modern:
...
 18/47	00:00	 4.658k	33.272k	+M13	17.Bd3 Qf6 18.Qh5+ g6 19.Qh6 Rg8 20.Bxf6 Kxf6 21.Rhe1 Nc6 22.Qh4+ Kg7 23.dxc6 Rf8 24.Qd4+ Kg8 25.Bc4+ d5 26.Re7 Rf7
 19/47	00:00	 5.341k	33.380k	+M13	17.Bd3 Qf6 18.Qh5+ g6 19.Qh6 Rg8 20.Bxf6 Kxf6 21.Rhe1 Nc6 22.Qh4+ Kg7 23.dxc6 Rf8 24.Qd4+ Kg8 25.Bc4+ d5 26.Re7 Rf7 27.Re8+
 20/47	00:00	 8.317k	33.133k	+M12	17.Bd3 Qf6 18.Qh5+ g6 19.Qh6 Rxa2 20.Bxf6 Kxf6 21.Rxa2 Nc6 22.Re1 d6 23.Bxg6 Ne5 24.Bh5+ Ke7 25.Qg7+ Kd8 26.Rxe5 dxe5
 21/47	00:00	 16.477k	33.151k	+M12	17.Bd3 Qf6 18.Qh5+ g6 19.Qh6 Rxa2 20.Bxf6 Kxf6 21.Rxa2 Nc6 22.Re1 d6 23.Bxg6 Ne5 24.Bh5+ Ke7 25.Qg7+ Kd8 26.Rxe5 dxe5 27.Qf6+
 22/47	00:00	 23.061k	33.085k	+M11	17.Bd3 Qf6 18.Qh5+ g6 19.Qh6 Rxa2 20.Bxf6 Kxf6 21.Bxg6 Rxb2+ 22.Bc2+ Kf7 23.Ng5+ Kg8 24.Qf6 Rxc2+ 25.Kf1 Rc1+ 26.Nxc1 d6 27.Qf7+
 23/47	00:01	 37.422k	33.234k	+M11	17.Bd3 Qf6 18.Qh5+ g6 19.Qh6 Nc6 20.Bxf6 Kxf6 21.Bxg6 hxg6 22.Qxh8+ Kf5 23.Nbd4+ Ke4 24.Nxc6 Kxd5 25.Qe5+ Kc4 26.Rac1+ Kd3 27.Nb4+
 24/47	00:01	 47.753k	33.510k	+M9	17.Ng5+ Kf8 18.Qf4+ Kg8 19.Bd3 Qe8 20.Rhe1 Qf8 21.Qxf8+ Kxf8 22.Nxh7+ Kf7 23.Ng5+ Kf8 24.Bg6 Rxh2 25.Re8+
 25/47	00:01	 51.759k	33.653k	+M9	17.Ng5+ Kf8 18.Qf4+ Kg8 19.Bd3 Qe8 20.Rhe1 Qf8 21.Qxf8+ Kxf8 22.Nxh7+ Kf7 23.Ng5+ Kf8 24.Bg6 Rxh2 25.Re8+
 26/47	00:01	 55.454k	33.813k	+M9	17.Ng5+ Kf8 18.Qf4+ Kg8 19.Bd3 Qe8 20.Rhe1 Qf8 21.Qxf8+ Kxf8 22.Nxh7+ Kf7 23.Ng5+ Kf8 24.Bg6 Rxh2 25.Re8+
Top
peter
Posts: 3412
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: How long until checkmate in 9 moves?

Post by peter »

Single thread with mate extensions on:

rnb4r/1ppp1kpp/1p4q1/3PQ3/3B4/1N3N2/PP3KPP/R4B1R w - - 0 1

Analysis by Zappa Mexico II x64:

Code: Select all

17.Ld3 Df6 18.Dh5+ g6 19.Dh6 Dxd4+ 20.Sfxd4 Sa6 21.Lxg6+ hxg6 22.Dxh8 Sb4 
  White is clearly winning.  
  +- (15.53)  Depth: 9/37   00:00:01  497kN
...
17.Ld3 Df6 18.Dh5+ g6 19.Dh6 Dxd4+ 20.Sfxd4 d6 21.Lxg6+ hxg6 22.Dxh8 Sc6 23.dxc6 b5 24.Ke3 bxc6 
  White is clearly winning.  
  +- (20.20)  Depth: 12/43   00:00:09  17030kN
17.Ld3 Df6 18.Dh5+ g6 19.Dh6 Txa2 20.Lxf6 Kxf6 21.Lxg6 Txb2+ 22.Lc2+ Kf7 23.Sg5+ Kg8 24.Tae1 Txc2+ 25.Kg1 Txg2+ 26.Kxg2 c5 27.Te8# 
  White mates.  
  +- (#11)  Depth: 13/45   00:00:23  47808kN
17.Sg5+ Kf8 18.Df4+ Kg8 19.Ld3 De8 20.The1 Df8 21.Dxf8+ Kxf8 22.Sxh7+ Kf7 23.Sg5+ Kf8 24.Lg6 Th7 25.Te8# 
  White mates.  
  +- (#9)  Depth: 13/45   00:00:32  66531kN
...
17.Sg5+ Kf8 18.Df4+ Kg8 19.Ld3 De8 20.The1 Df8 21.Dxf8+ Kxf8 22.Sxh7+ Kf7 23.Sg5+ Kf8 24.Lg6 Th7 25.Te8# 
  White mates.  
  +- (#9)  Depth: 14/47   00:00:49  101MN
With 30 threads of 16x3.5GHz CPU default (mate extensions off)

Code: Select all

17.Ld3 Df6 18.Dh5+ g6 19.Dh6 Dxd4+ 20.Sfxd4 c5 21.Lxg6+ hxg6 22.Dxh8 
  White is clearly winning.  
  +- (15.30)  Depth: 13/42   00:00:01  4466kN
...
17.Ld3 Df6 18.Dh5+ g6 19.Dh6 Sa6 20.Lxf6 Kxf6 21.Sg5 Sc5 22.Sxh7+ Txh7 23.Dxg6+ 
  White is clearly winning.  
  +- (16.17)  Depth: 14/47   00:00:01  11158kN
17.Sg5+ Kg8 18.De7 Df5+ 19.Ke1 Df8 20.d6 Ta4 21.Lc4+ Txc4 22.Tf1 Tc1+ 23.Txc1 Df2+ 24.Lxf2 h6 25.Df7# 
  White mates.  
  +- (#9)  Depth: 14/47   00:00:01  18198kN
...
17.Sg5+ Kg8 18.De7 Df5+ 19.Ke1 Df8 20.d6 Ta4 21.Lc4+ Txc4 22.Tf1 Tc1+ 23.Txc1 Df2+ 24.Lxf2 h6 25.Df7# 
  White mates.  
  +- (#9)  Depth: 19/47   00:00:07  263MN
Single thread:

rnb4r/1ppp1kpp/1p4q1/3PQ3/3B4/1N3N2/PP3KPP/R4B1R w - - 0 1

Analysis by Deep Shredder 13 x64:

Code: Select all

17.Ld3 Df6 18.Dh5+ g6 19.Dh6 Dxd4+ 20.Sfxd4 c5 21.Lxg6+ hxg6 22.Dxh8 cxd4 23.The1 d3 24.Dxc8 Kg7 25.Dxb7 d2 26.Te7+ Kf6 
  White is clearly winning.  
  +- (19.87)  Depth: 10/29   00:00:00
...
17.Ld3 Df6 18.Dh5+ g6 19.Dh6 Dxd4+ 20.Sfxd4 Ta5 21.Sxa5 d6 22.Lxg6+ hxg6 23.Dxh8 c5 24.Dxc8 cxd4 25.Sxb7 g5 26.Dxb8 Kg7 27.Sxd6 d3 28.Se4 d2 29.Dxb6 d1D 30.Taxd1 Kf8 31.Sxg5 
  White is clearly winning.  
  +- (32.18)  Depth: 22/52   00:00:10  32490kN
17.Ld3 Df6 18.Dh5+ g6 19.Dh6 Dxd4+ 20.Sfxd4 Sc6 21.dxc6 dxc6 22.Df4+ Kg7 23.De5+ Kh6 24.Dxh8 Lg4 25.Dxa8 Kg7 26.Dxb7 Kf8 27.Dxc7 b5 28.Sxc6 Kg8 29.Dd8+ Kg7 30.Dd4+ Kh6 31.Dxg4 Kg7 32.Dd4+ Kh6 33.Df6 Kh5 34.Le2+ Kh6 35.h4 b4 36.Df8# 
  White mates.  
  +- (#20)  Depth: 23/52   00:00:14  47719kN
...
17.Ld3 Df6 18.Dh5+ g6 19.Dh6 Dxd4+ 20.Sfxd4 Sc6 21.dxc6 bxc6 22.Lxg6+ hxg6 23.Dxh8 La6 24.Dxa8 c5 25.Dxa6 Kf6 26.Sxc5 Kg7 27.Sxd7 c6 28.Dxb6 Kf7 29.Dxc6 Ke7 30.Se5 Kf8 31.Dxg6 
  White mates.  
  +- (#17)  Depth: 26/52   00:00:15  49906kN
17.Ld3 Df6 18.Dh5+ g6 19.Dh6 Sc6 20.Lxf6 Kxf6 21.Lxg6 Se5 22.Lxh7+ Kf7 23.Sxe5+ Ke8 24.The1 d6 25.Sc6+ Le6 26.Dxe6+ Kf8 27.De7# 
  White mates.  
  +- (#11)  Depth: 27/52   00:00:17  55468kN
...
17.Te1 Tf8 18.Ld3 Dh6 19.d6 Sc6 20.Dd5+ De6 21.Txe6 dxe6 22.Dh5+ g6 23.Dxh7+ Ke8 24.Lxg6+ Tf7 25.Dxf7+ Kd8 26.dxc7# 
  White mates.  
  +- (#10)  Depth: 38/52   00:01:00  185MN
17.Sg5+ 
  White mates.  
  +- (#9 ++)  Depth: 38/52   00:01:04  195MN
17.Sg5+ Kf8 18.Df4+ Kg8 19.Ld3 De8 20.Tae1 Df8 21.Dxf8+ Kxf8 22.Thf1 d6 23.Kg3+ Lf5 24.Txf5+ Kg8 25.Te8# 
  White mates.  
  +- (#9)  Depth: 38/52   00:01:08  208MN
17.Sg5+ Kf8 18.Df4+ Kg8 19.Ld3 De8 20.Tae1 Df8 21.Dxf8+ Kxf8 22.Thf1 d6 23.Kg3+ Lf5 24.Txf5+ Kg8 25.Te8# 
  White mates.  
  +- (#9)  Depth: 39/52   00:01:11  216MN
30 threads:

Code: Select all

17.Ld3 Df6 18.Dh5+ g6 19.Dh6 Dxd4+ 20.Sbxd4 d6 21.The1 Ld7 22.Dg5 Sa6 23.Dh4 
  White is clearly winning.  
  +- (19.49)  Depth: 10/23   00:00:00
...
17.Ld3 Df6 18.Dh5+ g6 19.Dh6 Txa2 20.Lxf6 Kxf6 21.Txa2 Sc6 22.Te1 Td8 23.dxc6 bxc6 24.Dh4+ Kg7 25.De7+ Kh6 26.Dxd8 Kg7 
  White is clearly winning.  
  +- (31.75)  Depth: 16/44   00:00:01  12757kN
17.Ld3 Df6 18.Dh5+ g6 19.Dh6 Txa2 20.Lxf6 Kxf6 21.Txa2 Sc6 22.Te1 d6 23.dxc6 Le6 24.Dh4+ Kg7 25.Txe6 Tf8 26.Te7+ Tf7 27.Txf7+ Kxf7 28.cxb7 b5 
  White mates.  128kN
  +- (#17)  Depth: 17/44   00:00:01  15
17.Ld3 Df6 18.Dh5+ g6 19.Dh6 Dxd4+ 20.Sbxd4 Sc6 21.dxc6 d5 22.The1 Lh3 23.Dxh3 Kf6 24.cxb7 Tab8 25.De6+ Kg7 26.De5+ Kf7 27.Dxd5+ Kf8 28.De5 
  White is clearly winning.  
  +- (40.98)  Depth: 18/44   00:00:01  15381kN
17.Ld3 Df6 18.Dh5+ g6 19.Dh6 Txa2 20.Lxf6 Kxf6 21.Txa2 Sc6 22.Te1 d6 23.Lxg6 Se5 24.Lh5+ Ke7 25.Dg7+ Kd8 26.Dxh8+ Ke7 27.De8+ Kf6 28.Df8+ Sf7 29.Dxf7# 
  White mates.  
  +- (#13)  Depth: 19/44   00:00:01  21316kN
...
17.Ld3 Df6 18.Dh5+ g6 19.Dh6 Sc6 20.Lxf6 Kxf6 21.Lxg6 Se7 22.Lh5+ Sg6 23.Lxg6 d6 24.Le8+ Ke7 25.The1+ Le6 26.Dxe6+ Kf8 27.Df7# 
  White mates.  
  +- (#11)  Depth: 36/44   00:00:09  495MN
17.Sg5+ 
  White mates.  
  +- (#10 ++)  Depth: 36/44   00:00:11  579MN
17.Sg5+ Kf8 18.Df4+ Kg8 19.Ld3 De8 20.The1 Df8 21.Dxf8+ Kxf8 22.Sxh7+ Kf7 23.Sg5+ Kf8 24.Lg6 Txh2 25.Te8# 
  White mates.  
  +- (#9)  Depth: 36/44   00:00:13  709MN
17.Sg5+ Kf8 18.Df4+ Kg8 19.Ld3 De8 20.The1 Df8 21.Dxf8+ Kxf8 22.Sxh7+ Kf7 23.Sg5+ Kf8 24.Lg6 Txh2 25.Te8# 
  White mates.  
  +- (#9)  Depth: 37/44   00:00:14  747MN
Peter.
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acase
Posts: 994
Joined: Wed Mar 15, 2006 1:14 am
Location: Columbus, Ohio USA
Full name: Andrew R Case

Re: How long until checkmate in 9 moves?

Post by acase »

Spark 1.0 corei 16 cores (the maximum it will go, and a 2GB hash table which is also the maximum it will go, if you use a larger hash size it will crash like Ruffian 1.0.5 does when you go above a 512MB hash table):

Code: Select all

FEN: rnb4r/1ppp1kpp/1p4q1/3PQ3/3B4/1N3N2/PP3KPP/R4B1R w - - 0 1

Spark-1.0-win64-mp-corei:
 1	00:00	 1	16	+8.01	1.Qe5xc7
 1	00:00	 51	822	+8.17	1.Nf3-g5+ Kf7-g8 2.Qe5xc7
 2/2	00:00	 184	3k	+8.17	1.Nf3-g5+ Kf7-g8 2.Qe5xc7
 2/2	00:00	 1k	20k	+8.26	1.Qe5xc7 Qg6-f5
 3/3	00:00	 2k	21k	+8.89	1.Qe5xc7 Qg6-f5 2.Bd4xb6 Qf5xd5 3.Nf3-e5+ Kf7-f6
 3/4	00:00	 8k	109k	+9.47	1.Bf1-d3 Qg6-h6 2.Nf3-g5+ Kf7-f8 3.Qe5-f4+ Kf8-e7
 4/4+	00:00	 9k	92k	+9.72	1.Bf1-d3 Qg6-h6
 4/4+	00:00	 9k	93k	+9.97	1.Bf1-d3 Qg6-h6
 4/4+	00:00	 9k	80k	+13.97	1.Bf1-d3 Qg6-h6
 4/4	00:00	 10k	88k	+15.08	1.Bf1-d3 Qg6-f6 2.Qe5-h5+ g7-g6 3.Bd4xf6 g6xh5 4.Bf6xh8
 5/6	00:00	 10k	94k	+15.08	1.Bf1-d3 Qg6-f6 2.Qe5-h5+ g7-g6 3.Bd4xf6 g6xh5 4.Bf6xh8
 6/7	00:00	 11k	105k	+15.08	1.Bf1-d3 Qg6-f6 2.Qe5-h5+ g7-g6 3.Bd4xf6 g6xh5 4.Bf6xh8
 7/14	00:00	 42k	337k	+15.06	1.Bf1-d3 Qg6-f6 2.Qe5-h5+ g7-g6 3.Bd4xf6 g6xh5 4.Bf6xh8 Kf7-g8
 8/14+	00:00	 79k	5,262k	+15.31	1.Bf1-d3 Qg6-f6
 8/14+	00:00	 82k	5,444k	+15.56	1.Bf1-d3 Qg6-f6
 8/14+	00:00	 90k	5,996k	+16.56	1.Bf1-d3 Qg6-f6
 8/14	00:00	 93k	6,200k	+16.64	1.Bf1-d3 Qg6-f6 2.Qe5-h5+ g7-g6 3.Qh5-h6 d7-d6 4.Bd4xf6 Kf7xf6 5.Bd3xg6
 9/15+	00:00	 139k	9,235k	+16.89	1.Bf1-d3 Qg6-f6
 9/17+	00:00	 145k	4,665k	+17.14	1.Bf1-d3 Qg6-f6
 9/17	00:00	 167k	5,380k	+17.95	1.Bf1-d3 Qg6-f6 2.Qe5-h5+ g7-g6 3.Qh5-h6 Rh8-g8 4.Bd4xf6 Kf7xf6 5.Qh6xh7 Rg8-g7 6.Qh7-h4+ Kf6-f7 7.Nf3-e5+ Kf7-g8 8.Bd3xg6
 10/17+	00:00	 270k	8,703k	+18.20	1.Bf1-d3 Qg6-f6
 10/17+	00:00	 285k	6,062k	+18.45	1.Bf1-d3 Qg6-f6
 10/17+	00:00	 308k	6,547k	+19.45	1.Bf1-d3 Qg6-f6
 10/17	00:00	 359k	7,634k	+21.59	1.Bf1-d3 Qg6-f6 2.Qe5-h5+ g7-g6 3.Qh5-h6 Rh8-g8 4.Bd4xf6 Kf7xf6 5.Rh1-e1 Nb8-c6 6.d5xc6 Ra8-a4 7.Qh6xh7
 11/20+	00:00	 561k	9,050k	+21.84	1.Bf1-d3 Qg6-f6
 11/20+	00:00	 579k	9,332k	+22.09	1.Bf1-d3 Qg6-f6
 11/23+	00:00	 864k	11,081k	+25.59	1.Bf1-d3 Qg6-f6
 11/23	00:00	 979k	10,522k	+26.35	1.Bf1-d3 Qg6-f6 2.Qe5-h5+ g7-g6 3.Qh5-h6 Ra8-a3 4.Bd4xf6 Kf7xf6 5.b2xa3 Nb8-c6 6.d5xc6 b7xc6 7.Bd3xg6
 12/26+	00:00	 1,661k	13,288k	+26.60	1.Bf1-d3 Qg6-f6
 12/26+	00:00	 1,683k	13,464k	+26.85	1.Bf1-d3 Qg6-f6
 12/32+	00:00	 2,513k	14,611k	+32.85	1.Bf1-d3 Qg6-f6
 12/32	00:00	 2,648k	15,396k	+34.53	1.Bf1-d3 Qg6-f6 2.Qe5-h5+ g7-g6 3.Qh5-h6 Rh8-g8 4.Bd4xf6 Kf7xf6 5.Rh1-e1 Nb8-c6 6.d5xc6 Ra8-a5 7.Nb3xa5 Rg8-d8 8.Qh6-g5+ Kf6-g7 9.Qg5-e7+ Kg7-h6 10.Qe7xd8
 12/32+	00:00	 5,503k	20,765k	+38.85	1.Nf3-g5+ Kf7-f8
 12/32	00:00	 8,613k	26,259k	+M9	1.Nf3-g5+ Kf7-g8 2.Qe5-e7 Qg6-f5+ 3.Kf2-e1 Qf5-f8 4.d5-d6 Ra8-a4 5.Bf1-c4+ Ra4xc4 6.Rh1-f1 Rc4-c1+ 7.Nb3xc1 Qf8-f6 8.Qe7-e8+ Qf6-f8 9.Qe8xf8+
 12/32	00:01	 49,072k	42,449k	+M9	1.Nf3-g5+ Kf7-g8 2.Qe5-e7 Qg6-f5+ 3.Kf2-e1 Qf5-f8 4.d5-d6 Ra8-a4 5.Bf1-c4+ Ra4xc4 6.Rh1-f1 Rc4-c1+ 7.Nb3xc1 Qf8-f6 8.Qe7-e8+ Qf6-f8 9.Qe8xf8+
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cpeters
Posts: 186
Joined: Wed Feb 17, 2021 7:44 pm
Full name: Christian Petersen

Re: How long until checkmate in 9 moves?

Post by cpeters »

Last one/couldn't resist because it found a mate:

Cray Blitz version 49h

Code: Select all

rnb4r/1ppp1kpp/1p4q1/3PQ3/3B4/1N3N2/PP3KPP/R4B1R w

                 time limit20:00. [-->nonsense<--]
                 depth   time     eval  variation
                   1     0:00    7.590  Bd3 Qg4 Qxc7 ...
                   1->   0:00    7.590  Bd3 Qg4 Qxc7 ...
                   2     0:00    7.590  Bd3 Qg4 Qxc7 ...
                   2->   0:00    7.590  Bd3 Qg4 Qxc7 ...
                   3     0:00    7.628  Bd3 Qh6 Qxc7 
                   3a    0:00     ++0   Qf4+                          
                   3     0:00    7.757  Qf4+ Kg8 Qxc7 Qe8 Qxb6 
                   3->   0:00    7.757  Qf4+ Kg8 Qxc7 Qe8 Qxb6 
                   4     0:00    7.757  Qf4+ Kg8 Qxc7 Qe8 Qxb6 
                   4a    0:00     ++0   d6                            
                   4a    0:00     ++1   d6                            
                   4     0:00    9.905  d6 Re8 Bc4+ Re6 Qxe6+ dxe6 Ne5+ Kg8 
                                        Nxg6 cxd6 
                   4a    0:00     ++0   Bd3                           
                   4a    0:00     ++1   Bd3                           
                   4     0:00   11.664  Bd3 Qf6 Qh5+ g6 Bxf6 gxh5 Bxh8 
                   4->   0:00   11.664  Bd3 Qf6 Qh5+ g6 Bxf6 gxh5 Bxh8 
                   5     0:00   11.664  Bd3 Qf6 Qh5+ g6 Bxf6 gxh5 Bxh8 
                   5->   0:00   11.664  Bd3 Qf6 Qh5+ g6 Bxf6 gxh5 Bxh8 
                   6     0:00   11.534  Bd3 Qf6 Qh5+ g6 Bxf6 gxh5 Bxh8 Kg8 
                   6->   0:02   11.534  Bd3 Qf6 Qh5+ g6 Bxf6 gxh5 Bxh8 Kg8 
                   7a    0:02     ++0   Bd3                           
                   7     0:03   11.957  Bd3 Qf6 Qh5+ g6 Qh6 Qxd4+ Nbxd4 Kg8 
                                        Rhf1 
                   7->   0:14   11.957  Bd3 Qf6 Qh5+ g6 Qh6 Qxd4+ Nbxd4 Kg8 
                                        Rhf1 
                   8a    0:15     ++0   Bd3                           
                   8a    0:15     ++1   Bd3                           
                   8     0:21   13.303  Bd3 Qf6 Qh5+ g6 Qh6 Qxd4+ Nbxd4 Na6 
                                        Rae1 Nb4 Bxg6+ hxg6 Qxh8 Nxd5 
                   8->   1:23   13.303  Bd3 Qf6 Qh5+ g6 Qh6 Qxd4+ Nbxd4 Na6 
                                        Rae1 Nb4 Bxg6+ hxg6 Qxh8 Nxd5 
                   9a    1:29     ++0   Bd3                           
                   9a    1:31     ++1   Bd3                           
                   9     2:29   14.943  Bd3 Qf6 Qh5+ g6 Qh6 Rg8 Bxf6 Kxf6 Rhe1 
                                        Nc6 dxc6 bxc6 Qxh7 
                   9->   8:32   14.943  Bd3 Qf6 Qh5+ g6 Qh6 Rg8 Bxf6 Kxf6 Rhe1 
                                        Nc6 dxc6 bxc6 Qxh7 
                  10a    9:04     ++0   Bd3                           
                  10a    9:34     ++1   Bd3                           
                  10    14:32   18.085  Bd3 Qf6 Qh5+ g6 Qh6 Qxd4+ Nbxd4 Rxa2 
                                        Rxa2 d6 Bxg6+ Kg8 Bxh7+ Rxh7 Qg6+ Rg7 
                                        Qe8+ Kh7 Qxc8 
                  10a   22:33     ++0   Ng5+                          
                  10a   23:11     ++1   Ng5+                          
                  10a   29:07     ++9   Ng5+                          
                  10    44:34  999.980  Ng5+ Kg8 Qe7 Qf5+ Kg3 Qf8 d6 Ra4 Re1 
                                        Qf6 Qe8+ Qf8 Bc4+ Rxc4 Qxf8+ Kxf8 Rhf1+ 
                                        Kg8 Re8++ 
                  10->  44:34  999.980  Ng5+ Kg8 Qe7 Qf5+ Kg3 Qf8 d6 Ra4 Re1 
                                        Qf6 Qe8+ Qf8 Bc4+ Rxc4 Qxf8+ Kxf8 Rhf1+ 
                                        Kg8 Re8++ 
                time:44:34 4:44  1.0p nodes:********* h  0% 99% 98%1025292 nps
 

     Cray Blitz will mate in 10 moves.

 
 my move    1. Ng5+      
                 clock time was 44:34 [-->nonsense<--]
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