Sudoku Chess

What if every piece on the board had to earn its square?

Sudoku Chess fuses the timeless strategy of chess with the logic of Sudoku puzzles. Each piece has a number, and no number can repeat in the same row, column, or 3x3 box - just like a Sudoku puzzle! That single rule transforms the game you already know into something completely new. Attacks you'd expect to land suddenly don't. Defenses you'd never consider become airtight. Every move is a logic puzzle hidden inside a chess match.

Whether you're a grandmaster hungry for a fresh chess variant or a puzzle lover who has never played a game of chess in your life, Sudoku Chess meets you where you are - and takes you on a fun, brain-teasing ride that will keep you coming back.

♟ Play Your Way - Online, Offline, or Against AI

-- Live Multiplayer Chess - Jump into live, time-controlled matches against players from around the world. Fast matchmaking pairs you with opponents at your skill level in seconds.
-- Challenge Friends - Invite friends directly or send a challenge link. Pick up games whenever both of you are ready.
-- Daily Games - Play asynchronously at your own pace with friends or worldwide players.
-- Bot Play - Not online? Play against a built-in AI at adjustable difficulty, anytime, no connection required.
-- Offline Chess - 1v1 challenge a friend in-person, solve puzzles, play a bot, or play in Explore mode, all completely offline.
-- Game review mode lets you step through your whole game
-- Import/export PGN or FEN

🏆 Compete and Climb

-- Competitive Rankings - Earn rating points with every rated win. Watch your rank rise on global leaderboards where everyone has a shot at the top.
-- Victories Board - View and filter global game histories. See the most frequent move sequences, the fewest-move victories, and much more.
-- Streaks - Play a live, daily, or offline game every day to build and protect your streak. Miss a day and it resets - consistency is rewarded.

🧩 Sharpen Your Skills

-- Puzzle Mode - Hundreds of curated Sudoku Chess puzzles, from beginner to expert. Each puzzle isolates a tactical idea - find the move that works under Sudoku constraints. A perfect warm-up before a rated match, or a satisfying challenge on its own.
-- Explore Mode - Import any position you want and experiment freely. Test opening ideas, reconstruct games, or just see what the Sudoku rules do to positions you already know. No pressure, no clock.

🎨 Make It Yours

-- Custom Avatars - Choose from a variety of avatar styles to represent yourself in every match and on the leaderboard.
-- Personalized Profile - Track your match history, puzzle completion, rating progression, and daily streaks all in one place.

✅ Free to Play

Sudoku Chess is completely free to download and play. Every core feature — multiplayer, daily games, puzzles, bot matches, rankings — is available at no cost. No paywalls blocking competitive play. There is a paid option to remove ads, get unlimited puzzle hints, and earn a special badge that shows you love supporting indie-developed games!

Why Players Love Sudoku Chess

"It feels like chess but I actually have to think differently. The Sudoku layer is genuinely brilliant."

"Finally a chess variant that makes sense and isn't just chess with weird piece movements."

"Daily games with friends keep me coming back every morning. Highly addictive."