Your improvement centre
Build a repeatable training routine. All features are free. Play variants · Your performance insights · Opening explorer and analysis
Sign in to save training results, join studies and use account features. Guest tactics and local preferences remain available.
Adaptive tactics and survival
Guest practice works offline. Sign in to save ratings and start timed runs.
Back rank
Find the best continuation. The opponent replies automatically.
abcdefgh
abcdefgh
87654321
87654321
Timed training
Three lives. One scored attempt per assigned puzzle. Opponent replies are automatic. Difficulty increases as you solve.
Best: 3 min 0 · 5 min 0 · Survival 0
What is your plan?
Write your intention before moving; compare it with the explanation after solving.
Basic puzzles and existing lessons