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Block Tour (Posted on 2004-05-19) Difficulty: 1 of 5
In Gridland, the cities are arranged in a 4 by 6 grid:
A-B-C-D-E-F
| | | | | |
G-H-I-J-K-L
| | | | | |
M-N-O-P-Q-R
| | | | | |
S-T-U-V-W-X
A man born in A (and never ventured outside his city) has to visit a man in X but wants to take a detour to get there. He wants to visit every city but not enter any city more than once during his tour. How should his trip go?

See The Solution Submitted by Gamer    
Rating: 3.5714 (7 votes)

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Solution Solution | Comment 4 of 22 |
The problem states he is visiting city X.  This means he has to return to city A.  The trip A to X, which has a detour, is AGHIJKQPONMSTUVWX.  The trip back home is XRLFEDCBA.  The round trip visits every city.
  Posted by Brian Smith on 2004-05-19 09:20:39
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