Tuesday, May 10, 2011

Fences Solving techniques

(Click here for rules)

Technique 4:

Search for DOUBLE 3's

Case 1:   Corner Point meets.

Case 2 :  An edge meets.

If two 3s are adjacent to each other horizontally or vertically, their common edge must be filled in, because the only other option is a closed oval that is impossible to connect to any other line. Second, the two outer lines of the group (parallel to the common line) must be filled in. Thirdly, the line through the 3s will always wrap around in an "S" shape. Therefore, the line between the 3s cannot continue in a straight line, and those sides which are in a straight line from the middle line can be X'd out.

(Click here for rules)

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