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2026-09-19 Problems

Beginner
5
6
9
8
1
2
4
9
3
2
6
5
4
7
8
1
3
5
1
9
8
7
6
6
1
9
8
5
8
7
4
9
9
6
5
3
8
1
7
8
3
Intermediate
9
3
4
3
6
4
2
9
5
8
2
7
6
1
2
9
7
5
6
5
4
2
8
1
2
7
3
7
3
8
4
Advanced
7
6
2
1
6
4
8
5
3
4
1
6
8
9
1
3
5
9
6
1
6
3
2
5
7