Author: Heiner Marxen
Date: 11:25:47 04/02/02
Go up one level in this thread
On April 02, 2002 at 12:01:05, Art Basham wrote:
>From one of my real old chess books - now out of print...!
>
>1. Nc6 mates in 5...! (maybe more than one solution...
>They had no computors back then to check their work...:-)
>
>[D]R7/4N3/7B/8/4k3/1B6/8/7K w - -
Chest on an Athlon 1500+ needs only 1.01 seconds to find that this is the
unique key for the mate in 5. The complete solution tree reads:
Nc6 Kd3 Bc1 Kc3 Rb8 Kd3 Re8 Kc3 Re3#
Ke2 Kg2 Kd3 Re8 Kc3 Re3#
Ke1 Re8#
Ke4 Rf8 Kd3 Re8 Kc3 Re3#
Kf3 Rf8+ Ke2 Bc2 Ke1 Bd3 Kd1 Rf1#
Kg2 Ke2 Re8#
Bc4+ Kd1 Bd3 Ke1 Rf1#
Nb4 Ke1 Rf1#
Nd4 Ke1 Rf1#
Rf2 Ke1 Rf1#
Ke1 Rf1#
Nb4 Ke1 Bc4 Kd1 Rf1#
Kg2 Ke2 Re8#
Ke4 Bc1 Kd3 Re8 Kc3 Re3#
Kg3 Bd1 Kh3 Bf4 Kh4 Rh8#
Kh4 Bf4 Kh3 Rh8#
Ne5 Kh3 Bf4 Kh4 Rh8#
Bg5 Kg3 Rf3#
Kh4 Bf4 =*= Rh8#
Rf3 Kh5 Rh3#
Kg4 Ne5+ Kg3 Bg5 Kh3 Rf3#
Kh3 Bf4 Kh4 Rh8#
Bg5 Kg3 Rf3#
Kh4 Bf4 =*= Rh8#
Rf3 Kh5 Rh3#
Kh5 Bf4 Kh4 Rh8#
Rh8 Kh4 Bf4#
Kf5 Bf7 Ke4 Ra3 Kf5 Ra4 Kf6 Rf4#
Kf6 Ra7 Kf5 Ra4 Kf6 Rf4#
Kg4 Kg2 Kf5 Ra4 Kf6 Rf4#
Kh4 Ra4#
Cheers,
Heiner
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