Challenge Yourself

Before using pencil marks, see how far you can get with pure logic and mental candidate tracking.

Challenge Yourself
✓ Completed! 👍
2
5
1
6
3
4
8
9
4
7
1
1
4
2
8
3
7
5
2
3
5
9
7
4
8
3
7
1
9
7
1
4
6
2
6
5
7
7
3
1
9
3
1
6
8
5
Challenge Yourself

Before using pencil marks, see how far you can get with pure logic and mental candidate tracking.

Challenge Yourself