Choose mate distance

Start with short mates and progress to deeper calculation training.

Chess Checkmate Trainer — Mate in 1 to Mate in 5

Start with a single mating move, then calculate longer forcing lines. Themed courses let you focus on one king-confinement pattern; mixed practice asks you to recognize the idea without a theme hint.

Check the whole defense

A check is not necessarily mate. Before choosing the move, examine king escapes, captures of the checking piece, and possible blocks. Learn the final pattern first; longer courses then ask you to reach it against the available defenses.