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puzzles4_forum_hardest_1905
5..4...3...2..6..1.1..9.......8..7..8.....3.4..5.49.8..6......34..9...7...8.2....
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40
puzzles1_unbiased
..3.27..9......4.1...489.7..52..6......9.2..56..8..7...38.6.9.....2.4...2.4......
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2
puzzles1_unbiased
.29...4...5.....7..48.6.3....2..9..5....518....547.91..9.74......7..5.......23.8.
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2
puzzles1_unbiased
.9....6....2..4....5.9.2..1......4.6...7...5...63..9727.42..86.3........8...6.5..
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0
puzzles4_forum_hardest_1905
.29..1..3..8.4....5..8....9.9.7...38......94.85.4....727....3......6......52....4
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41
puzzles4_forum_hardest_1905
.......6.1..2..8.5.58..6..7.2...3.....58..6.28......7...1.4..5..8.6..9.1..9......
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15
puzzles4_forum_hardest_1905
..28....6.6....5..5.34....9..96....2.....1...6......7.2...84..33..2...9...4.3.2..
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19
puzzles1_unbiased
1......48..........958....1.....2.5..6..3...721..7.98.......7.....5948....376..9.
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4
puzzles4_forum_hardest_1905
62...74..9..6....8..4.......7...2.5...57..8..3..1....9...3..18.........68....693.
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32