Author: Heiner Marxen
Date: 07:44:44 04/17/01
Go up one level in this thread
On April 17, 2001 at 01:43:58, Uri Blass wrote:
>On April 17, 2001 at 01:39:13, Uri Blass wrote:
>
>>On April 17, 2001 at 01:07:08, John Hatcher wrote:
>>
>>>On April 17, 2001 at 00:58:23, Aloisio Ponti Lopes wrote:
>>>>[D] 4k3/3R4/6p1/4K1P1/6P1/8/8/8 w - - 0 78
>>>>
>>>>Very interesting, I could not see the reason why Tiger did not play Ke6 here.
>>>>The funniest thing is that Fritz 6 thinks that this is the strongest too.
>>>>Nalimov tablebases enabled for both of them (all 3-4-5 men from the WM-Paket 4
>>>>Cds Nalimov collection, installed to a separate partition of the hard disk).
>>>>
>>>>78.Kf6 Kxd7 79.Kxg6 Ke6 80.Kh6 Ke5 81.g6 Ke6 82.g7
>>>>Kf7 83.Kh7 Kf6 84.g8Q Ke5 85.Qd8 Ke4 86.g5 Ke3 87.g6 Ke2 88.g7 Ke1 89.g8Q Ke2
>>>>90.Qg2+ Ke1
>>>>91.Qdd2# 1-0
>>>>
>>>>Not the way a GM or a strong human player would mate Fritz...
>>>>
>>>>A. Ponti
>>>
>>>Well, this is just one man's opinion, but I would play 78. Kf6 without giving it
>>>much thought. It's simple, it's sure, and an elementary win can be calculated
>>>(by a human) in a few seconds. The simpler, the cleaner, the better.
>>>
>>>The humble opinion of a 2116 rated Expert.
>>>
>>>John
>>
>>The simplest way to win is the following:
>>1.Ke6 Kf8 2.Re7 Kg8 3.Rf7 Kh8 4.Kf6 Kg8 5.Kxg6 Kh8 6.Rf8#
>>
>>Uri
>
>I can add that this is not the fastest way to mate.
>
>The fastest way to mate and 2.Kf6 Kg8 3.Rd3 Kh7 4.Kf7 Kh8 Rh3# is faster
Well, ther are several ways to achieve that. Here is the complete tree
for solving for shartest mate (computed by Chest):
Ke6 Kf8 Kf6 Kg8 Ra7 Kh8 Kxg6 Kg8 Ra8#
Kf8 Ra8#
Rb7 Kh8 Kxg6 Kg8 Rb8#
Kf8 Rb8#
Rc7 Kh8 Kxg6 Kg8 Rc8#
Kf8 Rc8#
Rd1 Kh7 Kf7 Kh8 Rh1#
Kh8 Kf7 Kh7 Rh1#
Kxg6 Kg8 Rd8#
Kf8 Rd8#
Rd2 Kh7 Kf7 Kh8 Rh2#
Kh8 Kf7 Kh7 Rh2#
Kxg6 Kg8 Rd8#
Kf8 Rd8#
Rd3 Kh7 Kf7 Kh8 Rh3#
Kh8 Kf7 Kh7 Rh3#
Kxg6 Kg8 Rd8#
Kf8 Rd8#
Ke8 Rd1 Kf8 Rd8#
Rd2 Kf8 Rd8#
Rd3 Kf8 Rd8#
Rd4 Kf8 Rd8#
Rd5 Kf8 Rd8#
Rd6 Kf8 Rd8#
Ra7 Kg8 Kf6 Kh8 Kxg6 Kg8 Ra8#
Kf8 Ra8#
Ke8 Ra8#
Rb7 Kg8 Kf6 Kh8 Kxg6 Kg8 Rb8#
Kf8 Rb8#
Ke8 Rb8#
Rc7 Kg8 Kf6 Kh8 Kxg6 Kg8 Rc8#
Kf8 Rc8#
Ke8 Rc8#
Heiner
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