Sudoking vs Tsuidoku

SudoKing reinvents Sudoku with 2 superimposed grids: the first with 9 numbers, the second with 9 colors. Each number from 1 to 9 and each color must appear only once in every row, column, and 3 × 3 box. But 1 additional rule changes everything: each of the 81 number-color combinations must also be unique. A simple rule that opens up new deductions and completely transforms the Sudoku experience. Progress through 7 levels, watch your avatar evolve, solve historical riddles, and hunt for the Easter egg hidden in every grid. The Beginner level is free and unlimited. Other levels and options are available as in-app purchases, with no subscription. 9 numbers × 9 colors = 81 unique combinations. You’ve never played Sudoku like this.

Tsuidoku is a logic puzzle for players who have mastered classic Sudoku. The 9×9 grid remains, but a fourth constraint changes everything. THE 4 RULES Each row, column, and 3×3 region must contain the numbers 1 through 9 AND the 9 colors. The twist: each color must also contain all 9 numbers. The result: 81 unique number-color pairs. Place a "Red 5," and it cannot appear anywhere else. DAILY CHALLENGE A unique global grid every day—the same one for the whole world. Maintain your streak, earn monthly medals, and check the daily rankings. MASTER THE TECHNIQUES - Rainbow Technique: Track a single number across all nine colors. - Color Wheel: Track a single color across all nine numbers. Tap a cell to cycle through highlight modes and see the logic light up. PLAY TOGETHER Add friends, compare stats, and chat directly within the app. A detailed profile tracks your records across every difficulty level. Think you’ve mastered Sudoku? The real game starts here. Download now and create your first 81 perfect pairs.