Here are 4 examples of the checkmate in 3 puzzles in the 2012 Susan Polgar Nationwide Open Puzzle Solving Championship. How fast can you solve these four puzzles? (Click on the puzzle to see the enlarge version.)
Chess Daily News from Susan Polgar
SPNO Puzzle Solving Mate in 3
4:56 to solve the monkey in my brain was working overtime.
Took 7 – 8 minutes..