Author: Ernst Walet
Date: 13:08:00 03/07/00
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On March 07, 2000 at 01:19:20, Harald Faber wrote: >On March 07, 2000 at 01:08:22, Jouni Uski wrote: > >>[D]8/k7/8/2R5/8/4q3/8/4B2K w - - >> >>Latest version wants to play losing Kg2, when original version plays instantly >>drawing Bg3. Why? I have 3+4 piece TBs. > > >Because this position has *5* pieces on the board, therefore, as I always say, >also use *ALL* 5-man and you won't see this behaviour. Fritz6 shows 1.Bg3 0.00 >up to d=47/47 with 971 TB accesses. > And with a position with 6 pieces, can that only be solved with 6 piece TBs? Nevertheless, with *ALL* 3 and 4 piece TBs Fritz6a analysis this position as follows over here. New position 8/k7/8/2R5/8/4q3/8/4B2K w - - 0 1 Analysis by Fritz 6: 1.Bc3 -+ (-3.22) Depth: 1/2 00:00:00 1.Bc3 Qxc5 -+ (-5.97) Depth: 1/6 00:00:00 1.Bf2 -+ (-5.00) Depth: 1/6 00:00:00 1.Bf2 Qxf2 -+ (-4.31) Depth: 1/6 00:00:00 1.Bb4 -+ (-4.25) Depth: 1/6 00:00:00 1.Rc7+ -+ (-3.94) Depth: 1/6 00:00:00 1.Rc7+ Kb6 -+ (-1.44) Depth: 1/6 00:00:00 1.Rc7+ -+ (-1.81) Depth: 2/5 00:00:00 1.Rc7+ Kb6 2.Rf7 Qxe1+ 3.Kg2 -+ (-4.31) Depth: 2/9 00:00:00 1.Ra5+ -+ (-4.28) Depth: 2/9 00:00:00 1.Ra5+ Kb6 2.Ra1 -+ (-1.56) Depth: 2/9 00:00:00 1.Ra5+ -+ (-1.87) Depth: 3/9 00:00:00 1.Ra5+ Kb6 2.Kg2 Qxe1 -+ (-4.31) Depth: 3/11 00:00:00 1kN 1.Bb4 -+ (-4.25) Depth: 3/11 00:00:00 1kN 1.Bb4 Qe4+ 2.Kh2 Qxb4 3.Rc8 -+ (-4.22) Depth: 4/13 00:00:00 4kN 1.Kg2! -+ (-4.19) Depth: 4/13 00:00:00 5kN 1.Kg2 Qxe1 2.Kf3 Kb6 3.Rc8 -+ (-4.16) Depth: 5/14 00:00:00 9kN 1.Kg2-- -+ (-#28) Depth: 6/6 00:00:00 11kN, tb=8 1.Kg2 -+ (-#28) Depth: 6/15 00:00:00 13kN, tb=12 1.Bb4! -+ (-12.62) Depth: 6/15 00:00:00 17kN, tb=13 1.Bb4 Qe4+ 2.Kh2 Qxb4 3.Rh5 Qf4+ 4.Kh3 Kb6 -+ (-4.37) Depth: 6/15 00:00:00 22kN, tb=14 1.Bg3! -+ (-4.34) Depth: 6/16 00:00:00 34kN, tb=36 1.Bg3 Kb6 2.Bd6 Qh6+ 3.Kg2 Qxd6 4.Rc8 Qd3 -+ (-4.37) Depth: 7/18 00:00:00 57kN, tb=60 1.Bg3! -+ (-4.06) Depth: 8/20 00:00:00 139kN, tb=186 1.Bg3 Kb6 2.Rc2 Qd3 3.Rb2+ Kc5 4.Kg2 Qe4+ 5.Kh2 Qe3 -+ (-1.41) Depth: 8/20 00:00:01 175kN, tb=222 1.Bg3 Kb6 2.Rc2 Qd3 3.Rb2+ Kc5 4.Kg2 Qe4+ 5.Kh2 Qe3 µ (-1.37) Depth: 9/22 00:00:01 263kN, tb=415 1.Bg3 Kb6 2.Rc2 Qd3 3.Rb2+ Kc5 4.Kg2 Kd5 5.Rb8 Qe2+ µ (-1.37) Depth: 10/24 00:00:02 420kN, tb=817 1.Bg3 Kb6 2.Rc2 Qe4+ 3.Rg2 Kb5 4.Kg1 Kc4 5.Bf2 Qb1+ µ (-1.37) Depth: 11/26 00:00:03 780kN, tb=1847 1.Bg3 Kb6 2.Rc2 Qe4+ 3.Rg2 Kb5 4.Kh2 Kc4 5.Rd2 Qe3 µ (-1.34) Depth: 12/29 00:00:06 1826kN, tb=4610 1.Bg3 Kb6 2.Rc2 Qe4+ 3.Rg2 Kc6 4.Kh2 Qh7+ 5.Kg1 Qd3 µ (-1.34) Depth: 13/30 00:00:11 3807kN, tb=9856 1.Bg3 Kb6 2.Rc2 Qe4+ 3.Rg2 Kc6 4.Kg1 Qf3 5.Kh2 Qh5+ µ (-1.34) Depth: 14/32 00:00:22 7860kN, tb=20135 1.Bg3 Kb6 2.Rc2 Qe4+ 3.Rg2 Kc6 4.Kg1 Qf3 5.Rc2+ Kd5 µ (-1.31) Depth: 15/34 00:00:50 19040kN, tb=44516 1.Bg3 Kb6 2.Rc2 Qe4+ 3.Rg2 Kc6 4.Kg1 Qf3 5.Rc2+ Kd5 µ (-1.31) Depth: 16/35 00:01:33 36509kN, tb=88574 1.Bg3 Kb6 2.Rc2 Qe4+ 3.Rg2 Kc6 4.Kg1 Qf3 5.Rc2+ Kd5 µ (-1.31) Depth: 17/37 00:02:58 71048kN, tb=171103 1.Bg3 Kb6 2.Rc2 Qe4+ 3.Rg2 Kc6 4.Kg1 Qf3 5.Rc2+ Kd5 µ (-1.28) Depth: 18/39 00:06:56 164197kN, tb=363232 1.Bg3 Kb6 2.Rc2 Qe4+ 3.Rg2 Kc6 4.Kg1 Qf3 5.Rc2+ Kd5 µ (-1.28) Depth: 19/43 00:15:03 351811kN, tb=737392 No draw score, but no Kg2 as well! Ernst. > >>But still Fritz solves 41/43 from my end suite (Junior6 got 37)! >> >>Jouni
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