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2026-09-16 Problems

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