What's new in 1.6.4

• Updated the store information to accurately describe optional rewarded ads and the Remove Ads purchase

The latest update focused on bug fixes for chess rules, AI performance, and game state persistence. The current post-release period contains zero reviews, resulting in an inconclusive impact assessment. The neutral score reflects the absence of observable data rather than a failure of the technical changes.

What's new in 1.6.3

• Fixed several chess rule edge cases so every legal move is available and illegal ones are blocked
• The AI now always answers quickly — no more long thinking pauses
• Game results, streaks and achievements are recorded correctly every time
• Saved games, Daily and Weekly Challenges resume exactly where you left off
• Lots of smaller fixes and polish