CHESS is a 3D Chinese Chess application on iPhone that brings a warm classic study room atmosphere, combining sharp 3D WebGPU/GL graphics with multi-style artificial intelligence and online chess tournaments.

FEATURES

• 3D lacquer & rosewood chessboard: 60fps 3D rendering with flexible study room lighting, animated piece capturing, warm sound effects of pieces moving, and subtle haptic feedback.
• 5 distinct AI personalities: From Mộc An (Beginner · 1000 Elo), Thu Sơn (Calm · 1250 Elo), Tần Kỳ (Aggressive · 1500 Elo), Hàn Phong (Profound · 1750 Elo) to Lâm Tuyền (Master · 2050 Elo).
• 20 classic endgame scenarios: A collection of classic endgame scenarios with strategic tips, explanations of checkmate moves, and a progressive unlocking path.
• Online tournament hall & Elo leaderboard: Quick matchmaking, create waiting rooms with a 3-digit code, direct challenges, and rank up through 6 levels of chess mastery.
• 2-player local mode & Game review: Automatic storage of the ongoing game, rewind moves, suggested moves, and review each move in the log.
• Comprehensive accessibility features: High-contrast 2D chessboard fully supports VoiceOver, Dynamic Type, and Reduce Motion mode on iOS.