How many times have we all overlooked an attractive mate-in-two - not even bothering to look for it - because, being so consumed with our own plans, we don't notice that the opponent's last move was a serious tactical mistake ! And how often,
after having missed a brilliant shot, have we found that it was there for one move only and it was our one opportunity to win ?
212 Surprising Checkmates - Alberston/Wilson
In this position White has just moved his knight to c5 attacking the rook which allows Black a mate in 4 opportunity.
Max Euwe was the 5th World Champion (1935-37). This is an impressive checkmate game played when he was 18