BlueBlock: Block Sudoku

BlueBlock is a calm, satisfying block puzzle that's easy to learn and hard to put down.

Drag the shaped blocks onto the grid and fill complete rows, columns, or squares to clear them and score points. Plan your placements, chain clears together for big combos, and keep the board alive as long as you can. It's the classic block-sudoku loop — refined, relaxing, and endlessly replayable.

FEATURES

Simple one-finger controls — just drag and drop
No timer, no pressure — play at your own pace
Satisfying line-clear combos and score chasing
Clean, calming blue visuals that are easy on the eyes
Undo and hints to help you out of a tight spot
A daily challenge to test your skills
Works offline — play anywhere, anytime
Free to play

Whether you have two minutes or twenty, BlueBlock is the perfect brain break. Fill the grid, clear the lines, and chase that new high score.

Can you keep the board alive?