Chessoku is a logic puzzle made from chess pieces. A few pieces belong somewhere on a small board, and each number tells you how many of them attack that square. Work out where every piece stands. Every puzzle has exactly one solution.

You don't need to know chess. Each piece is taught with a short animated lesson the first time you meet it.

HOW TO PLAY
• Drag pieces from your tray onto the board.
• A number counts the pieces attacking that square. A 0 means none do.
• Rooks, bishops and queens are stopped by anything in their way. Knights jump over.
• Place every piece so all the numbers match, and the puzzle is solved.

JOURNEY
One long path of levels. It starts with a single rook on a 3×3 board and grows to 5×5 boards with several pieces at once. New rules arrive as you go: stones that block attacks, pieces already fixed on the board, revealed threats, colored regions and more. Each one is explained when it first appears, and Discoveries keeps them all, with coins for every one you find. Hard and Very Hard levels are marked and pay extra coins.

DAILY PUZZLE
A new puzzle every day, the same one for everyone. Each day has its own sticker: solve the puzzle to add it to your collection, then share it. Missed a day? Earlier days of the current month stay open. Collect stickers through the month to earn coin rewards.

POWER-UPS
Power-ups unlock as you progress through the Journey:
• Reveal Number shows the count on a hidden square.
• Reveal Threat shows which piece type attacks a square.
• Reveal Piece shows where one hidden piece stands.

ALSO
• No timer in Journey or Daily puzzles. Take as long as you like.
• Weekly and global leaderboards open at level 40.
• Available in 18 languages.
• A one-time No Ads purchase removes ads and lets you play the Journey offline.