Puzzle number: 137956
width:  50
height:  50
solved_count:  670
AVE_TIME:  '00:04:12'
ave_time_count:  134

top_values
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[1]
[1]
[2]
[1, 2]
[2, 1, 3]
[2, 2, 3]
[3, 3, 4]
[3, 9]
[4, 9]
[4, 10]
[4, 11]
[4, 11]
[5, 12]
[19]
[19]
[20]
[20]
[21]
[20]
[19]
[17]
[17]
[16]
[16]
[15]
[15]
[16]
[17]

left_values
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[]
[1]
[1]
[2]
[3]
[5]
[7]
[11]
[13]
[15]
[16]
[17]
[19]
[20]
[21]
[5, 15]
[5, 16]
[4, 18]
[18]
[18]
[18]
[18]
[18]
[14]
[14]
[16]
[17]
[18]
