Enter at the S, and end at the E, collecting 100 points along the way. You may not enter the same corridor more than once.

    |E |
+---+  +-+-----+
|21            |
+  +-+   +--+  |
|  | |   |  |  |
+  +-+   +--+  |
|    |53 |  61 |
+-+  +---+  ---+
|  18          |
|  +--+   +  +-+
|     | 5 |    |
+---  +-+-+ 90 |
|34     | |    |
+  -+-  +-+  +-+
|   |     13   |
+---+  +-------+
    |S |

(In reply to Lazy! by brianjn)

Charlie mentioned backtracking which is what I had in mind in collected 13, 34, pass both 18 and 21 without collecting and then get 53 and backtrack to E.

Posted by brianjn on 2007-04-13 20:12:35