Posts Tagged ‘ suraromu ’

Puzzle 2 – Suraromu

Following the tradition of being too lazy to recodify rules, https://mellowmelon.wordpress.com/slalom/ are the rules, don’t worry that Slalom != Suraromu, they are the same puzzle type.

Basically: Dotted lines are gates. You must go through each gate perpendicular to them. Numbered gates must be traversed in that order, i.e. the gate marked 3 is to be traversed third, starting and ending at the circled number. (the direction is up to your interpretation) The number in the circle indicates the total number of gates for convenience.

pheno_0002_suraromu

This is more of a proof of concept than a legitimately hard puzzle. This construction however proves that Suraromu is NP-complete though. Also very belated Pi Day imagery? Difficulty: Pretty easy.

(Spoiler: The heart of the puzzle is isomorphic to finding a Hamiltonian cycle in the trianglar prism graph, provided that you have to go through two particular edges.)

EDIT: Darn, I totally failed to capitalize on making the two gates 3-3 and 14-14. (antisymmetric pattern). Edited it slightly but it doesn’t affect anything besides aesthetics. If you’re an unlucky subscriber, you can count this one solved if you solved it through email.

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