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Beginner
Easy
Medium
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Expert
Master
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Mediumpuzzles
(45056 puzzles)
3
9
8
5
2
1
4
9
5
5
2
8
2
8
1
3
7
9
7
4
7
3
6
9
7
7
3
1
2
Difficulty rating: 4.2
Rating: 4.2
1
8
5
3
2
1
8
6
2
3
1
8
1
2
4
5
9
8
4
4
6
6
3
5
3
5
9
Difficulty rating: 4.4
Rating: 4.4
9
6
4
7
2
1
9
8
3
8
7
1
4
5
2
1
8
6
9
7
5
8
7
5
2
1
9
4
Difficulty rating: 4.2
Rating: 4.2
3
7
6
8
6
2
4
8
9
2
6
5
3
1
8
7
4
8
5
4
2
6
5
6
2
3
Difficulty rating: 4.2
Rating: 4.2
3
6
5
4
8
3
9
4
9
7
5
4
8
7
3
6
9
2
9
2
4
1
8
2
4
4
1
3
6
5
4
8
Difficulty rating: 4.2
Rating: 4.2
4
8
6
4
2
7
7
3
2
1
8
6
1
2
3
5
2
5
9
4
8
9
7
1
4
9
Difficulty rating: 4.2
Rating: 4.2
8
9
1
3
7
1
3
8
6
3
9
7
4
2
3
3
8
1
9
1
2
6
5
8
4
3
6
2
3
4
8
7
Difficulty rating: 4.2
Rating: 4.2
1
7
2
3
9
6
5
8
2
3
6
7
9
4
3
9
8
4
5
8
1
1
2
7
3
2
Difficulty rating: 4.2
Rating: 4.2
9
8
6
4
5
7
2
9
3
6
2
4
3
1
4
7
9
8
3
2
5
7
2
3
6
8
4
Difficulty rating: 4.4
Rating: 4.4
8
1
3
2
3
6
1
2
9
5
4
1
7
6
8
7
1
9
1
3
7
3
1
6
8
4
5
4
8
8
3
1
Difficulty rating: 4.2
Rating: 4.2
7
2
9
3
4
1
7
2
4
8
9
5
7
3
8
1
6
3
6
2
5
5
2
8
1
4
Difficulty rating: 4.2
Rating: 4.2
9
2
3
8
1
2
6
3
5
8
2
7
4
2
1
3
1
5
7
6
7
6
1
9
6
7
4
1
Difficulty rating: 4.2
Rating: 4.2
9
7
3
5
8
7
7
5
7
3
6
1
5
1
9
4
3
1
9
2
1
2
8
4
9
8
7
4
Difficulty rating: 4.2
Rating: 4.2
8
7
9
5
1
8
4
1
7
2
8
4
5
7
3
7
9
8
6
7
5
2
4
8
5
7
9
4
6
Difficulty rating: 4.2
Rating: 4.2
7
4
5
1
8
8
7
4
7
8
1
2
7
1
8
2
3
9
6
8
3
5
5
2
2
6
1
3
4
Difficulty rating: 4.4
Rating: 4.4
5
4
9
4
1
2
5
3
6
8
9
6
5
1
3
5
1
4
1
5
3
9
2
7
2
7
1
4
Difficulty rating: 4.2
Rating: 4.2
9
5
4
5
4
6
2
7
6
5
3
8
1
5
7
3
2
9
6
8
4
1
4
2
8
4
1
9
Difficulty rating: 4.2
Rating: 4.2
6
9
7
1
8
1
2
5
7
4
3
9
4
1
5
9
7
5
8
7
9
9
5
8
7
4
1
3
Difficulty rating: 4.2
Rating: 4.2
7
1
2
6
5
3
1
1
5
5
8
9
4
3
5
2
7
1
8
9
2
4
2
8
2
4
5
5
1
6
Difficulty rating: 4.4
Rating: 4.4
7
3
5
6
1
9
7
2
1
8
3
9
7
8
1
4
6
8
3
9
1
5
3
6
5
2
3
4
Difficulty rating: 4.2
Rating: 4.2
1
9
8
5
2
5
3
6
4
5
9
7
3
1
1
6
3
1
9
5
8
7
2
7
5
3
Difficulty rating: 4.4
Rating: 4.4
7
6
5
3
5
4
9
1
8
2
5
7
9
8
6
1
6
4
5
3
2
6
1
9
3
2
5
Difficulty rating: 4.2
Rating: 4.2
3
4
6
6
9
1
7
2
9
6
7
9
8
1
7
5
9
2
3
9
5
6
8
9
4
8
5
6
Difficulty rating: 4.2
Rating: 4.2
2
8
7
9
3
6
4
8
4
1
7
9
2
5
9
8
3
6
6
9
7
9
3
8
4
2
Difficulty rating: 4.2
Rating: 4.2
4
6
5
8
7
6
4
8
7
7
4
2
9
2
8
7
5
6
8
1
3
2
7
1
4
9
3
5
Difficulty rating: 4.2
Rating: 4.2
9
6
5
8
1
5
3
7
9
8
2
3
7
4
9
4
5
7
7
4
6
9
5
9
1
4
2
Difficulty rating: 4.2
Rating: 4.2
6
5
7
9
5
5
3
9
1
8
8
4
3
9
9
1
5
6
7
8
4
3
5
1
8
5
2
8
Difficulty rating: 4.4
Rating: 4.4
4
8
3
4
7
9
3
8
1
8
9
5
6
1
4
7
8
9
2
7
9
3
5
6
7
7
6
Difficulty rating: 4.4
Rating: 4.4
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