apps.mjanssen.nl/checkd/

Build 152

Play vs Computer — cooler, lighter, longer

Playing against Mr. No-Patzer should no longer run your battery down or warm up your iPhone quite so aggressively. We’ve made the chess engine work smarter during AI games: less redundant analysis, lower CPU priority, and lighter background processing — without changing how the opponent plays.

Smoother visuals

Seasonal effects (such as falling snow) now run at a lower frame rate, reducing unnecessary GPU use whilst you’re playing.

Reliability & compatibility

  • Fixed build issues that could prevent the app from compiling correctly
  • Ensured the app and iMessage extension always report matching version numbers
  • Improved Swift 6 concurrency safety in tactical analysis

Summary: 3.3.1 is primarily a performance and stability release focused on AI games, with under-the-hood fixes to keep builds and versions in sync.