A SMALL CHALLENGE FOR YOUR DAY.

Give curiosity a puzzle.

Play a compact number puzzle, test a deduction, and enjoy the moment a pattern falls into place. No account or payment needed.

01 / EXPLORE AN IDEA02 / TRY IT YOURSELF03 / KEEP LEARNING

THE INTERACTIVE DESK

Logic games / TOOL 01

4 × 4 mini Sudoku

Fill each row, column and 2 × 2 box with 1–4 exactly once. Check your answer or reset and try again.

No sign-up. No paywall.

2 starter guides

Search the libraryTopic

2 guides found

Puzzle skills

A four-by-four Sudoku uses the same core constraints as its larger cousin, with fewer symbols to track.

Reasoning

A deduction follows from the constraints. A guess proposes a possibility that still needs testing.