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

Hacker
Rank
Score
180
flag of India
00.00
180
flag of Brazil
00.00
180
flag of India
00.00
180
flag of India
00.00
180
flag of Pakistan
00.00

[deleted]

180
flag of null
00.00
180
flag of India
00.00
180
flag of Canada
00.00
180
flag of India
00.00
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