About this app
Improve your chess skills by solving chess problems composed over the centuries. For each problem, you are given an initial position from which you must checkmate your opponent in the specified number of moves. Some problems have many solutions, while others have only one! FEATURES - 300 problems in six collections - All solution variations are recognized - Legal move visualization - Next move hint - Step forward and backward through move history - "View Solution" mode for exploring all solution combinations - "Analyze" mode for freely exploring all legal moves - "Play Chess" mode for that impromptu game at the coffee shop - High resolution artwork for retina display devices - iOS4 compatible with multi-tasking support
Latest release
What’s New
- New puzzle collection with 50 puzzles - "View Solution" mode for exploring all solution combinations
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 26, 2026 · 4:42 AM $0.99