Strategy challenges
Strategy challengesBlockblock strategy puzzles
Study focused board positions, find the correct move, and learn from immediate feedback. Sign in to save progress, build a puzzle rating, and play daily challenges.
Puzzle modes
Train board reading and move choice
Rated puzzles
Solve tactical positions, earn puzzle rating, and progress through ranks.
Daily challenge
Return for a dated position and review its move-by-move explanation.
Clear feedback
See which moves are correct, spot mistakes, and replay the solution.