The rules are simple; place one number and one color in each tile, so that the
following three conditions are all true:
Every row and column contains each number exactly once
1234
Every row and column contains each color exactly once
1234
Every number + color combination appears exactly once
1234123114
✓ There’s a 1 in every color✓ Yellow includes every digit
Stuck? Remember rule #3!
Red and green are already in this row, so the uncolored 4 is either blue or yellow. However, there’s already a yellow 4 on the board, so it must be blue!
44
Worth knowing:
Pre-filled tiles are marked.
These marks show which numbers and colors were locked in at the start of the puzzle.
→
2Number
→
Color
→
3Both
That’s all there is to the rules! You're ready to get started now.