Re: Test Position
Posted: Fri Sep 11, 2009 9:30 am
Well, Togas there are many
In most of them, history pruning can be switched off, which mostly doesn't lower speed so much. Extremely configurable (therefore the name, I guess) is a version of Cylone 4.4, called Cyclone xTreme, there was no success within a quarter of an hour as for my Quad with default settings, neither turning off nullmove, neither forward pruning off, but as for history pruning off:
5k2/5p2/2b1p1pN/1p2P1P1/5Q1p/1Pb4P/4KP2/1q1B4 b - - 0 1
Analysis by Cyclone xTreme:
1...Le8 2.Sg4 Db2+ 3.Kf1 Da1 4.Se3 Lxe5 5.Db4+ Kg8 6.Dxh4
-/+ (-0.81) Tiefe: 6/17 00:00:00 10kN
...
1...Le8 2.Sg4 b4 3.Se3 Da1 4.Dxh4 Lb5+ 5.Kf3 Lc6+ 6.Ke2 Da6+ 7.Sc4 Lxe5 8.Lc2 Lc3 9.Df4 e5 10.Dh4 Ld5 11.Dh6+ Ke7
-/+ (-1.28) Tiefe: 16/52 00:00:19 68760kN
1...f5 2.exf6 e5 3.Dg4 Lb7 4.Kf1 Dd3+ 5.Kg1 Dd5 6.Lf3 Dxf3 7.Dxf3 Lxf3 8.Kf1 Ld5 9.Ke2 Lxb3 10.Kd3 b4 11.Sg4 Ld5 12.Se3 e4+ 13.Ke2
-+ (-3.35) Tiefe: 16/71 00:02:33 561mN
...
1...f5 2.exf6 e5 3.Dg4 Lb7 4.Sf5 Le4 5.Kf1 Lxf5 6.Df3 e4 7.Dxc3 Dxd1+ 8.Kg2 Df3+ 9.Dxf3 exf3+ 10.Kxf3 b4 11.Kg2 Le6 12.Kf3 Lxb3 13.Ke3 Le6 14.Kd4 Lxh3 15.f4 b3 16.Kc3
-+ (-3.66) Tiefe: 19/72 00:11:22 2558mN
The same did work with Toga II 1.4.25 SE, you can swith off history pruning as well, but it takes up to depth 21 and 35 minutes:
Neue Partie, Blitz:4'+2" Dort
5k2/5p2/2b1p1pN/1p2P1P1/5Q1p/1Pb4P/4KP2/1q1B4 b - - 0 1
Analysis by Toga II 1.4.25SE:
1...Le8 2.Sg4 Db2+ 3.Kf1 Ld2 4.Df6 Lc6 5.Dh8+ Ke7 6.Dxh4
-/+ (-0.98) Tiefe: 6/19 00:00:00 12kN
...
1...Le8 2.Sg4 b4 3.Se3 Da1 4.Dxh4 Lb5+ 5.Kf3 Lc6+ 6.Ke2 Da6+ 7.Sc4 Lxe5 8.Dg4 Lc3 9.Kf1 Da1 10.h4 Db1 11.Kg1 Da2 12.Df4 Ld5 13.Db8+ Ke7 14.Dc7+ Kf8
-+ (-1.50) Tiefe: 20/71 00:08:37 1909mN
1...f5 2.exf6 e5 3.Dg4 Lb7 4.Sf5 Dxf5 5.Dxf5 gxf5 6.Kf1 e4 7.Kg2 Ld5 8.f3 e3 9.Kf1 f4 10.Ke2 Kf7 11.Lc2 Le6 12.Ld3 Lxh3 13.Lxb5 Le6
-+ (-3.46) Tiefe: 20/72 00:35:09 7854mN
Remark, Cyclone does it within 16 plies, that's as well as Deep Fritz 10, which was best solver of this position for me, see my other posting,
In most of them, history pruning can be switched off, which mostly doesn't lower speed so much. Extremely configurable (therefore the name, I guess) is a version of Cylone 4.4, called Cyclone xTreme, there was no success within a quarter of an hour as for my Quad with default settings, neither turning off nullmove, neither forward pruning off, but as for history pruning off:
5k2/5p2/2b1p1pN/1p2P1P1/5Q1p/1Pb4P/4KP2/1q1B4 b - - 0 1
Analysis by Cyclone xTreme:
1...Le8 2.Sg4 Db2+ 3.Kf1 Da1 4.Se3 Lxe5 5.Db4+ Kg8 6.Dxh4
-/+ (-0.81) Tiefe: 6/17 00:00:00 10kN
...
1...Le8 2.Sg4 b4 3.Se3 Da1 4.Dxh4 Lb5+ 5.Kf3 Lc6+ 6.Ke2 Da6+ 7.Sc4 Lxe5 8.Lc2 Lc3 9.Df4 e5 10.Dh4 Ld5 11.Dh6+ Ke7
-/+ (-1.28) Tiefe: 16/52 00:00:19 68760kN
1...f5 2.exf6 e5 3.Dg4 Lb7 4.Kf1 Dd3+ 5.Kg1 Dd5 6.Lf3 Dxf3 7.Dxf3 Lxf3 8.Kf1 Ld5 9.Ke2 Lxb3 10.Kd3 b4 11.Sg4 Ld5 12.Se3 e4+ 13.Ke2
-+ (-3.35) Tiefe: 16/71 00:02:33 561mN
...
1...f5 2.exf6 e5 3.Dg4 Lb7 4.Sf5 Le4 5.Kf1 Lxf5 6.Df3 e4 7.Dxc3 Dxd1+ 8.Kg2 Df3+ 9.Dxf3 exf3+ 10.Kxf3 b4 11.Kg2 Le6 12.Kf3 Lxb3 13.Ke3 Le6 14.Kd4 Lxh3 15.f4 b3 16.Kc3
-+ (-3.66) Tiefe: 19/72 00:11:22 2558mN
The same did work with Toga II 1.4.25 SE, you can swith off history pruning as well, but it takes up to depth 21 and 35 minutes:
Neue Partie, Blitz:4'+2" Dort
5k2/5p2/2b1p1pN/1p2P1P1/5Q1p/1Pb4P/4KP2/1q1B4 b - - 0 1
Analysis by Toga II 1.4.25SE:
1...Le8 2.Sg4 Db2+ 3.Kf1 Ld2 4.Df6 Lc6 5.Dh8+ Ke7 6.Dxh4
-/+ (-0.98) Tiefe: 6/19 00:00:00 12kN
...
1...Le8 2.Sg4 b4 3.Se3 Da1 4.Dxh4 Lb5+ 5.Kf3 Lc6+ 6.Ke2 Da6+ 7.Sc4 Lxe5 8.Dg4 Lc3 9.Kf1 Da1 10.h4 Db1 11.Kg1 Da2 12.Df4 Ld5 13.Db8+ Ke7 14.Dc7+ Kf8
-+ (-1.50) Tiefe: 20/71 00:08:37 1909mN
1...f5 2.exf6 e5 3.Dg4 Lb7 4.Sf5 Dxf5 5.Dxf5 gxf5 6.Kf1 e4 7.Kg2 Ld5 8.f3 e3 9.Kf1 f4 10.Ke2 Kf7 11.Lc2 Le6 12.Ld3 Lxh3 13.Lxb5 Le6
-+ (-3.46) Tiefe: 20/72 00:35:09 7854mN
Remark, Cyclone does it within 16 plies, that's as well as Deep Fritz 10, which was best solver of this position for me, see my other posting,