Hard AI "Cheating" Bug Fixed (v0.09) — Battle Hanafuda Steam update #663109

The Hard AI in Battle Hanafuda is designed to make decisions based only on information that is openly available to it.Specifically, it uses the following data:Its own handCaptured cards (both its own and the opponent’s)Cards on the fieldOn the other hand, the following “hidden” information is never accessed directly:The opponent’s handThe remaining deckInstead, these are handled through Monte Carlo-based estimation, allowing the AI to achieve high performance while maintaining fairness.However, a recent static analysis conducted using generative AI (Codex) revealed a critical issue: part of the algorithm was directly referencing hidden information that should not have been accessible (effectively, cheating).This update fixes that major bug.As a result, the Hard AI now achieves a 57.6% win rate against Normal difficulty (down 0.7% from the previous version).To prevent similar issues in th...