MyChessArena

♟️ MyChessArena - Offline Chess

Classic offline chess: clean, fast, and ad-free. Perfect for learning the basics, practicing tactics, or studying your own games.

🎯 KEY FEATURES

- 🤖 10 Opponents with Personality: Ranging from "The Peasant" (350 ELO) to "The Judge" (2000 ELO). Each has a unique name, avatar, and skill level. Lower-level opponents make mistakes typical of their rank, while higher-level ones play with precision.

- 🧩 Tactical Puzzles: Over 20,000 puzzles from a CC0 database. Filter by theme (mate in 1, fork, pin, skewer, endgames, and more)—complete with hints, step-by-step solutions, and a dedicated puzzle ELO rating.

- 🎯 Spaced Repetition: Puzzles you get wrong return to your review queue after 1, 3, and 7 days to help solidify the pattern.

- 📊 Game Analysis: After finishing, view your performance curve, identify your errors and blunders, and retry your worst move from that position.

- 📋 FEN and PGN: Load a position by pasting a FEN string, import games via PGN, and navigate through them move by move. Export and share your games in standard PGN (SAN) format, or copy the FEN for any given position.

- ⏱️ Integrated Clock: Play Casual, Blitz, or Rapid games (3+2, 5+3, 10+5) with an increment—either against the AI ​​or in a local, face-to-face setting.

- 🎮 Flexible Controls: Drag pieces or use double-tap.

- ⚖️ Advantage and Captures: Track captured pieces and material advantage in real time.

- 📈 Indicative ELO: Your skill level is calculated as you defeat the engine and is displayed in your statistics. (An internal estimate for entertainment and personal progress.)

- 👥 2-Player Mode: Play on the same device; the board rotates after every turn.

- 🎨 Visual Themes: Brown, Green, and Blue, plus unlockable themes: Walnut, OLED Black, Newspaper, Ice, and Marble.

- 📳 Haptic feedback and configurable sounds.

- 💾 Save Games: Up to 20 save slots, so you can pick up right where you left off.

- ↩️ Undo (games played with assistance do not count toward your ELO).

- 🔒 100% Offline and Ad-Free: No registration required; no network permissions needed.

- 🌍 English, Spanish, and Portuguese.


⚙️ CUSTOM ENGINE IN C++

A traditional engine built from scratch (featuring Minimax, alpha-beta pruning, Zobrist hashing, and iterative deepening). It evaluates material, pawn structure, and piece mobility. At higher difficulty levels, the engine searches deeper as the number of pieces on the board decreases.

📜 OFFICIAL FIDE RULES

- Castling, *en passant* captures, and pawn promotion to any piece.
- Check, checkmate, and stalemate.
- Draws by threefold repetition or the 50-move rule.
- Game history using SAN (Standard Algebraic Notation), with captures highlighted.

Download MyChessArena for free and enjoy chess at your own pace.

Recent changes:
- Post-game analysis.
- 10 opponents with distinct personalities.
- 20,000 tactical and thematic puzzles.
- PGN and FEN importer.
- Optimized engine and save system protected against corruption.