Chess Codex

Content rating
Everyone
10+
Downloads
Content rating
Everyone
Learn more
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About this game

Chess Codex is a calm, beautiful place to get sharper at chess.

5,400 hand graded puzzles take you from your very first checkmate to
tactics that will test a club player. Every puzzle is a real position
with one best move to find. Spot the fork, land the pin, set up the mate.

Play offline, anywhere. No account, no sign up, no clutter.

A quiet, uncluttered board built for focus.

Chess Codex is part of Penrose Park Puzzles, a family of premium puzzle
games.
Train tactics. Find the mate.
Updated on
Jul 21, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, App activity, and Device or other IDs
  • This app may collect these data types
    Location, App activity and 2 others
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

Chess Codex now has dark mode! Also includes general performance enhacements.