Puzzle number: 20967
width:  40
height:  50
solved_count:  2685
AVE_TIME:  '00:01:07'
ave_time_count:  1764

top_values
[2, 2]
[2, 3]
[2, 1]
[2]
[2]
[2]
[2]
[2]
[1, 1]
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[]

left_values
[]
[]
[]
[]
[]
[]
[]
[]
[]
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[]
[1]
[2]
[2]
[2]
[2]
[1, 2]
[2, 2]
[1, 2, 1]
[2, 2]
