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08 July 2010 @ 11:22 pm
Friday Puzzle #57 - Two by Four Winds  
I've only written one Four Winds (Eminent Domain) puzzle before, as part of this Color Puzzle Sampler. The construction lesson there was that having some unfixed values for Four Winds clues could give a more challenging but interesting back and forth solve. I decided to revisit this concept this week with two Four Winds puzzles that have some interlinked clues.

Rules: Draw one or more horizontal or vertical lines from each numbered clue so that all blank cells are connected to exactly one of the numbers. Lines cannot enter other numbered squares or intersect with other lines. Each number represents the total number of blank cells occupied by the lines from that number. Some clues are shaded in gray and are shared between the two grids; these values (10 or 20) represent the total number of cells connected to the number in that exact position in both grids (ie a 10 clue might have 4 cells in one grid and 6 in the other).

motrismotris on July 13th, 2010 01:20 am (UTC)
Yes, this is an astute observation. I didn't mention this above but I did discover what I'll call "cornering" while working on this puzzle, particularly around the two gray 10's positioned off the corner. I could probably make more out of a puzzle focusing on that kind of thinking, but probably not too much more. Four Winds was actually one of the better "solve on a 3D Cube" puzzles in my first WPC experience and some of that was certainly do to pinning cells with wrapping lines.