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Wednesday (Wednesday, 27th September 2006)
PuzzleLover
Kwon-Tom Obsessive
Puzzles: 1033
Best Total: 38m 17s
Posted - 2006.09.27 03:25:56
Is there a logical progression from here that doesn't require massively long lookahead?  Thanks.

foilman
Kwon-Tom Admin
Puzzles: 1720
Best Total: 24m 8s
Posted - 2006.09.27 08:01:18
First thing I can see is the 3 towards the top-left must have a line on top of it, otherwise it fairly quickly results in a loop, like this:-


And that same 3 must have a line on the bottom of it too, or it very quickly goes very wrong:-


Next thing is in the top-right corner - if the line running along the top went down past the 1, I can quite easily see that all solutions would result in closed loops or isolated ends without having to use fix position (one potential solution is fairly long but still quite easy to see):-

Last edited by foilman - 2006.09.27 08:18:17
tilps
Kwon-Tom Obsessive
Puzzles: 4324
Best Total: 20m 22s
Posted - 2006.09.27 08:17:37
the left hand side of the two to the left of the zero in the middle right hand side - can't be set to true or the entire righthand side closes a loop (relatively deep, but not hard to see). That causes the top of the puzzle to join across, ruling out the line traveling through the middle of the puzzle near the two.
... that helped me a bit at least.
Jankonyex
Kwon-Tom Obsessive
Puzzles: 3818
Best Total: 9m 35s
Posted - 2006.09.27 09:58:28
first make a cross on the left of the "2" at r8c5,

then by counting, there are two lines on the left and the top of the "3" at r3c3...
of course in KTW, there are two lines on the right and the bottom.
Last edited by Jankonyex - 2006.09.27 09:59:27

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