Author: Darren Rushton
Date: 04:19:09 10/18/03
[D]qn6/rp1p4/pPkP1R2/K7/2P5/B1pP4/2P1P3/8 w - - 0 1 Y. G. Vladimirov 1st Prize Macleod Memorial Tourney 1994 Forced mate in 17! An amusing problem illustrating the use of pendulum manoeuvres and interferences to reposition pieces. White would like to play Rf8 and Rc8 mate, but must avoid giving stalemate. By allowing the king to shuttle between c5 and c6 and checking every second move (otherwise Nc6+ frees the Black forces) White is able to reposition his bishop at g1 and e2 pawn at e5 to allow the rook to reach f8 via a discovered check. The solution is worth close study. 1.Bc1 Kc5 2.Be3+ Kc6 3.Bf4 Kc5 4.Rf5+ Kc6 (If 4…Kd4 5.Rd5 mate) 5.Be5 Kc5 6.Bh2+ Kc6 (If 6…Kd4 7.Bg1 mate) 7.Rf6 Kc5 8.Bg1+ Kc6 9.e3 Kc5 10.e4+ Kc6 11.Bh2 Kc5 12.Rf5+ Kc6 (If 12…Kd4 13.Bg1 mate) 13.e5 Kc5 14.Bg1+ Kc6 15.Rf2 Kc5 16.Rf8+ Kc6 17.Rc8 mate. Can a program find it? Regards, Daz
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