Big Chess vs Coverage Chess

Big Chess takes classic chess to a larger 10×10 board with new pieces and deeper strategy. Play online with ELO matchmaking, challenge friends, train against AI at 7 levels, play two players on one device, solve hundreds of puzzles, and review your game history. All 9 variants work in every mode (online, with friends, against AI and two players on one device): Big Chess, Grand Chess, Capablanca Chess, Chess 960, Duck Chess, Makruk, Crazyhouse, Atomic Chess, and Fog of War. Puzzles cover all 9 variants. Customize time controls, boards, hints, sound and more. Track ratings and statistics, climb the leaderboard, and export games as PGN. Free: online play, friend challenges and two players on one device in every variant; AI levels 0–4; 3 puzzles a day plus the daily puzzle; 3 hints and 3 undos per game against AI; 1 engine game analysis a day; basic statistics and game archive; standard boards and pieces. Big Chess Premium (optional) adds AI levels 5–6, unlimited puzzles, hints, undos and game analysis, advanced statistics for every variant (rating history and openings), and premium board themes and piece sets. Plans: a monthly or yearly subscription (the yearly plan has a 7-day free trial for eligible new subscribers) or a one-time lifetime purchase. Prices are shown in the app and vary by country. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period; renewal is charged within 24 hours before the period ends. Manage or cancel subscriptions in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

*Core Features* • Auto Save after every turn (protects against crashes, battery loss, etc.) • Game Export to save/share games • Game Import to load previous/shared games • Undo Moves to step back to any earlier move • View Score to see full move list *Coverage Indicators* Passive Coverage  • Squares show red (opponent), green (you), or a yellow/orange if both cover • The more pieces you have covering a square the darker it will be (likewise for your opponent) Active Coverage • Tap empty square to see all pieces covering it • Double-tap occupied square to view coverage instead of moves Piece Coverage • Tap piece to highlights everything it controls *Alerts* • Green Alert on your piece that have a capture available • Red Alert on your opponent’s piece which are vulnerable to capture