Author: Vaclav Visnadjek
Date: 16:39:25 04/12/04
Go up one level in this thread
On April 12, 2004 at 11:24:31, Heiner Marxen wrote: >On April 11, 2004 at 21:54:57, douglas calvert wrote: > >>On April 08, 2004 at 07:37:40, Jouni Uski wrote: >> >>>Most amteurs announce instantly mate in 12, so here's a little more difficult: >>> >>>[D]5b1k/p1p1pBp1/1pP1P1P1/1P4p1/8/8/6p1/6Kb w - - >>> >>>Mate in 31 >>>Chest solves in 0,80s... > >That's ChestUCI (special mate mode), of course. >Normal Chest has no chance, here. > >>>Jouni >> >>I am at a loss. Any hints? > >Without asking Chest, my warmware sees the zugzwang theme here: >If white could pass (do null move) black were forced to move the g pawn. >Do this 3 times, and we get a6 bxa6 and its over soon. >Unfortunately I count more than 31 moves for this complete manoeuvre, >so I appear to miss something. > >Cheers, >Heiner 1.Be8 Kg8 2.Bd7 Kh8 3.Bc8 Kg8 4.Ba6 Kh8 5.Bb7 Kg8 6.Bc8 Kh8 7.Bd7 Kg8 8.Be8 Kh8 9.Bf7 g4 10.Be8 Kg8 11.Bd7 Kh8 12.Bc8 Kg8 13.Ba6 Kh8 14.Bb7 Kg8 15.Bc8 Kh8 16.Bd7 Kg8 17.Be8 Kh8 18.Bf7 g3 19.Be8 Kg8 20.Bd7 Kh8 21.Bc8 Kg8 22.Ba6 Kh8 23.Bb7 Kg8 24.Bc8 Kh8 25.Bd7 Kg8 26.Be8 Kh8 27.Bf7 a5 28.bxa6 b5 29.a7 b4 30.a8Q b3 31.Qxf8# or something...
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