solitaire × sudoku
Sudoku, dealt from a deck of cards. Now with three fresh Daily Challenges every day — build your streak, earn monthly trophies, and share your best runs.
Solidoku 2.0 is out now on the App Store. Prefer your browser? Today's Easy and Hard dailies are playable right here — the exact same puzzles the app deals.
New in 2.0
Every day deals an Easy, a Medium, and a Hard — the same three puzzles for every player in the world. Keep your streak alive, fill the calendar, and chase the monthly trophies.
Finish a daily on its day to keep the streak going — every difficulty tracks its own streak.
Complete a whole month on time for gold. Miss a day? Back-play it from the calendar and still take silver.
Brag about your time, mistakes, and streak with a tap — a tidy share card, ready for the group chat.
How it works
Flip from the deck to reveal your next play — a number and a suit. Each card belongs somewhere on the board.
Each 3×3 box belongs to a suit. Hearts go in one box, clubs in another — the suit tells you where to look.
Use classic elimination: each number 1–9 appears once per row, column, and box. Find the one cell that works.
Place every card correctly to win. Stuck? A hint shows exactly where the current card belongs.
The game
New to Sudoku? We'll Teach You
Keep the Streak Alive
Track Streaks, Records & Trophies
Features
Stuck mid-game? A hint reveals exactly where the current card belongs. Three per game — unlimited in Zen Mode.
Two chapters: first how classic sudoku works, then the Solidoku card twist. Never played sudoku? No problem.
Your stats, streaks, trophies, and card back unlocks follow you across your devices. Nothing to set up.
An optional nudge so your streak never dies. It knows which difficulties you play — and stays quiet once you're done.
A toggle for purists: turn off the suit glow on the board and work out every placement the hard way.
From a relaxed Easy to a properly tricky Hard — for normal games and every day's dailies alike.
No score. No clock. No pressure. Just you and the puzzle, at your own pace — with unlimited free hints.
Leave mid-game and come back exactly where you left off — your normal game and your daily, independently.
No internet required — even the dailies are dealt on your device. Perfect for flights and commutes.
Collect
Earn collectible card back designs by playing your way — perfect games, zen wins, speed records, comebacks, and a few surprises. Daily Challenges count too. Each one is a badge of honour.
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Play Easy and Hard free in your browser now — or download Solidoku 2.0 for iPhone and iPad on the App Store today.