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2026-07-05 Problems

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