Project Euler #237: Tours on a 4 x n playing board

Hacker
Rank
Score
101
flag of India
02.50
102
flag of Ireland
02.50
104
flag of Argentina
02.50
105
flag of South Korea
02.50
109
flag of India
01.25
110
flag of India
01.25
111
flag of India
01.25
114
flag of India
01.25
116
flag of India
01.25
118
flag of United Kingdom
01.25
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