Multiple paths can be drawn on the grid below following along ten of the twelve segments but never using any segment twice.
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+--+--+
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+--+--+
How many such paths are there?
(In reply to
re: As many as I found by Charlie)
Categorizing the paths:
path missing missing segs description
segs
hkifcadgjl be adjacent at outside corner like a&c
hkifcadgeb jl adjacent at outside corner like a&c
hkifcabegd jl adjacent at outside corner like a&c
hkifcabejl dg adjacent spokes of the wheel like d&f
hkidacfgjl be adjacent at outside corner like a&c
hkidacfgeb jl adjacent at outside corner like a&c
hkidbegfca jl adjacent at outside corner like a&c
hkigebacfd jl adjacent at outside corner like a&c
hkigebdfca jl adjacent at outside corner like a&c
hkljgfcadi be adjacent at outside corner like a&c
hkljgfcabe di opposite spokes of the wheel like f&g
hkljgdacfi be adjacent at outside corner like a&c
hkljebacfi dg adjacent spokes of the wheel like d&f
hkljebacfd gi adjacent spokes of the wheel like d&f
hkljebacfg di opposite spokes of the wheel like f&g
hkljebdfca gi adjacent spokes of the wheel like d&f
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Posted by Charlie
on 2016-02-19 14:37:35 |
re(2): As many as I found
