Objectives / Rules
- Find all of the surrounding squares, and complete the grid such that every square is either Black or White.
- The clues tell you how many Black squares surround that square, horizontally, vertically, and diagonally, including the numbered square.
- Every other square is White.
- SurrounDoku™ is a trademark owned by Kevin Stone.
See Getting Started and the Walkthrough below for extra tips and tricks.
What are the numbers for?
These are the number of Black squares that surround that number, including the number itself.
Click or move your mouse over the puzzle to see the answer.
Getting Started
A 0 must be surrounded by White squares.
A 9 must be surrounded by Black squares.
A 6 along an edge must be surrounded by Black squares.
A 4 in a corner must be surrounded by Black squares.
A 9 must be surrounded by Black squares.
A 6 along an edge must be surrounded by Black squares.
A 4 in a corner must be surrounded by Black squares.
Walkthrough
Step 2
The squares surrounding this 0 must be all be White.
The squares surrounding this 0 must be all be White.
Step 3
The remaining squares surrounding this 2 must be Black.
The remaining squares surrounding this 2 must be Black.
Step 4
The remaining squares surrounding this 2 must be White.
The remaining squares surrounding this 2 must be White.
Step 5
The remaining squares surrounding this 4 must be Black.
The remaining squares surrounding this 4 must be Black.
Step 6
The remaining squares surrounding this 3 must be White.
The remaining squares surrounding this 3 must be White.
Step 7
The remaining squares surrounding this 4 must be Black.
The remaining squares surrounding this 4 must be Black.
Step 8
The remaining square surrounding this 4 must be White.
The remaining square surrounding this 4 must be White.
Step 9
The remaining square surrounding this 4 must be Black.
The remaining square surrounding this 4 must be Black.
Step 10
The remaining square surrounding this 4 must be Black.
The remaining square surrounding this 4 must be Black.
Step 11
The remaining square surrounding this 4 must be White.
The remaining square surrounding this 4 must be White.
Step 12
The remaining square surrounding this 1 must be White.
The remaining square surrounding this 1 must be White.
Step 13
The remaining squares surrounding this 3 must be Black.
The remaining squares surrounding this 3 must be Black.
Step 14
This square must be White.
This square must be White.
Step 15
The completed puzzle.
The completed puzzle.