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2026-09-20 Problems

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