6/18/2018 - Fine Tuning Your Endgames

spectorsky

Arisktotle

I see how white wins (1.Kf8 h6 (h5) 2.g6, so on), however I don't see checkmate in 4 moves. I see white needs 5 or 6moves: Kf8, g6,g7,g8Q, ...

BryanCFB
spectorsky wrote:

Arisktotle

I see how white wins (1.Kf8 h6 (h5) 2.g6, so on), however I don't see checkmate in 4 moves. I see white needs 5 or 6moves: Kf8, g6,g7,g8Q, ...

That's because it is a black to move puzzle.  Has to be because if it was white to move black had no legal move the move before the puzzle leading to the starting position.

spectorsky

Arisktotle

Retrograde analysis... Nice. However, there is 4.5 moves (the  first move is only half) which is also greater than 4.

BryanCFB
spectorsky wrote:

Arisktotle

Retrograde analysis... Nice. However, there is 4.5 moves (the  first move is only half) which is also greater than 4.

Arisktotle wrote:

Interesting that the problem interface makes it seem as if the solution requires 5 moves. It is actually 4.5 moves but problemists have agreed that the count only refers to the white moves in most problem types.