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puzzles1_unbiased
4..........7..4.161.9...2.....2.3.....2.9.1.......7.9.8..56...1.5.....3..4..2.58.
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1
puzzles4_forum_hardest_1905
.1.2..6....7....3.5...6...4..6..13..3...8..4..7.9.....6...5.4....2....85.....9...
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88
puzzles1_unbiased
.9.8.3.......7.6..8..54.2...4....5.29..62.43.2....1.8.......3...6......91.49.....
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3
puzzles1_unbiased
.49.5.1.6.7...9..38.....9.7...7......51.8........43..836..7.......53....1......6.
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0
puzzles1_unbiased
....8...479...6.8.......9...561.......32.5..........586......2.2.1..7..5....6..97
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2
puzzles4_forum_hardest_1905
.59.....3.........4..19.5..7.......5.4.65.7.........8.6...12.....497.6...7...4.1.
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54
puzzles4_forum_hardest_1905
.9..2.6.7.......35.8..7.2...3.9...6.....3...8...2.63....91......6..9.8..4......7.
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12
puzzles1_unbiased
......8.9.217..5....6.48.....3.6.9..4.5....7.....7...5...4..3.71.4....6.....9.4..
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0