Suko

Play Suko — the world’s most delightful number-placement puzzle.

With its clean, compact design, Suko is the perfect puzzle companion for quiet moments or quick breaks on the go.

How to Play
Place the numbers 1 through 9 on the grid so that:
• The numbers around each inner circle add up to the number inside it
• The numbers in each color group add up to the number in that color’s outer circle

If you get stuck, hints will gently guide you — or use the Board Calculator to solve any Suko puzzle instantly.

Key Features
• Play unlimited Suko puzzles, anytime
• Sharpen your logic and mental math skills
• Instantly check your solutions
• Discover whether any puzzle is solvable
• Beautiful, minimal design for a truly zen experience