Example, Part 3
1
1
2
6
9
6
5
5
4
3
4
2
1
1
4
2
1
3
1
8
8
7
5
3
The 1,1 row is complete, so fill in the remaining black square. The 2,1 row is also complete, so X out the remaining white squares there. For the completed 3,1 row, X out the remaining white square. Finally, fill in the remaining black square for the 3 row.
1
1
2
6
9
6
5
5
4
3
4
2
1
1
4
2
1
3
1
8
8
7
5
3
You're done! Congratulations!