http://britishchessnews.com/2020/03/20/ ... -2020-rip/
Richard Guy was a mathematician of note who is well known in the studies and problem community.
He helped the RAF to predict weather.
He edited the British Chess Magazine Endings column between 1947 and 1951 and composed around 200 endgame studies and played in the British Championships.
He helped to develop the Guy-Blandford-Roycroft (GBR) Code for endgame classification.
He lived to be 103 years old.
Win, 3+2
Remembering Dr. Richard Guy (30-ix-1916 09-iii-2020)
- John Upham
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Remembering Dr. Richard Guy (30-ix-1916 09-iii-2020)
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Re: Remembering Dr. Richard Guy (30-ix-1916 09-iii-2020)
Struggling a bit to solve this one. What does "Win, 3+2" mean?
(I can see that immediate promotion to a queen fails to a stalemating tactic, and I doubt promoting to a rook helps, so that leaves moves of the king or bishop, some of which can be logically discounted, in fact all the moves of the White king fail, so the first move is a bishop move, and only one of those works, OK, so it wasn't that hard to solve!)
(I can see that immediate promotion to a queen fails to a stalemating tactic, and I doubt promoting to a rook helps, so that leaves moves of the king or bishop, some of which can be logically discounted, in fact all the moves of the White king fail, so the first move is a bishop move, and only one of those works, OK, so it wasn't that hard to solve!)
Last edited by Christopher Kreuzer on Tue Mar 09, 2021 7:41 pm, edited 1 time in total.
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Re: Remembering Dr. Richard Guy (30-ix-1916 09-iii-2020)
3 white pieces, 2 Black ones. I'll give you a chance to get it before giving the answer.
- Christopher Kreuzer
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Re: Remembering Dr. Richard Guy (30-ix-1916 09-iii-2020)
I have got it now, by a process of elimination. Should have seen it immediately. I don't think Black's checks starting on h2 make any difference, need to check that.
EDIT: Yes, White's king can get to the right squares (f7-e6-d5-d4) to prevent the Black rook from a final check to win the promoted queen. And no more stalemate tricks, I don't think.
EDIT: Yes, White's king can get to the right squares (f7-e6-d5-d4) to prevent the Black rook from a final check to win the promoted queen. And no more stalemate tricks, I don't think.
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Re: Remembering Dr. Richard Guy (30-ix-1916 09-iii-2020)
The Lomonosov tablebases confirm that that move wins and is the only winning move.