Oh, what I did find claims a "good" player can force mate within 33 moves with bishop/knight. That seems very in depth, given the relative simplicity of 2 bishops.
Bishop/Knight mate
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Wikipedia is a good place for chess fundamentals:
http://en.wikipedia.org/wiki/Bishop_and_knight_checkmate
A player consulting a tablebase can certainly give mate within 33 moves with B+N but you cant use that OTB or in CC so
The lone king can only be mated (by force) in a corner controlled by the Bishop.
The Kt and/or the King control the color-sqs the Bishop doesn't.
The lone king must be forced to the edge of the bd, where he will flee to the "wrong" corner assuming he/she knows what they're doing. From there the King is "escorted" to the correct corner without being allowed to wander back to the ctr of the bd.
Any basic endgame book will show you how to do it, according to BCE the longest forced win is 34 moves but that's irrelevant once you know the technique. Any chess program can also show you how to do it, but it helps to have it explained in a book or by a person who knows how.
Its handy to know because it shows you how to coordinate a Kt + B in other situations as well, for instance a Kt + B is usually a big advantage over a lone Rook when there are still several pawns left on the bd.
NimzoRoy wrote:
The lone king can only be mated (by force) in a corner controlled by the Bishop.
The Kt and/or the King control the color-sqs the Bishop doesn't.
The lone king must be forced to the edge of the bd, where he will flee to the "wrong" corner assuming he/she knows what they're doing. From there the King is "escorted" to the correct corner without being allowed to wander back to the ctr of the bd.
Any basic endgame book will show you how to do it, according to BCE the longest forced win is 34 moves but that's irrelevant once you know the technique. Any chess program can also show you how to do it, but it helps to have it explained in a book or by a person who knows how.
Its handy to know because it shows you how to coordinate a Kt + B in other situations as well, for instance a Kt + B is usually a big advantage over a lone Rook when there are still several pawns left on the bd.
How so in the last paragraph? A rook is almost ALWAYS better then a bishop. There are only certain places where a bishop is better. Rooks have much more scope.
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jerry2468 wrote:
NimzoRoy wrote:
...
Its handy to know because it shows you how to coordinate a Kt + B in other situations as well, for instance a Kt + B is usually a big advantage over a lone Rook when there are still several pawns left on the bd.
How so in the last paragraph? A rook is almost ALWAYS better then a bishop. There are only certain places where a bishop is better. Rooks have much more scope.
His last paragraph is saying a knight+bishop, not a king+bishop (If I'm understanding you in saying lone rook vs. what you think he said was king/bishop)
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Where's a good place to learn? B/B v king is easy mate. N/N is impossible to mate in that you cannot -force- the mate, as opponent has to blunder. But Bishop/knight seem much harder. I saw on google that some masters have ended up drawing past 50 moves on B/N endings vs. king!