I haven't seen this before, but maybe you have. And no, looking at the grid below, it's not Battleship. It's a Sudoku puzzle (well, sorta), that on first glance looks easy, but I started to find some that range from ridiculously easy to brain-wrenchingly complex -- and they only consist of ONE's and ZERO's. I'm keeping the difficulty somewhere in between -- this one really isn't that hard to solve once you get started.
The rules to fill in the grid are simple:
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Each box contains either a zero or a one.
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No more than two equal numbers immediately next to or below each other are allowed (i.e., "000" or "111" are not allowed). Ignore diagonals.
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Each row and each column should contain an equal number of zeros and ones.
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Each row is unique and each column is unique. Thus, any row cannot be exactly equal to another row, and any column cannot be exactly equal to another column.
Each binary puzzle has a unique solution. It is always possible to make a next step by reasoning. In other words, the solution can always be found without guessing.
And that's it. Piece of cake. Fill in the squares and then solve for the final location.
Cache can be found at:
N 33 5 (A*B)-(C+F).(B*C)-(D+C) (B+D)+(F-A) (E*D)-(F*B) W 117 4 (B+F).E-A*D (A*C)-(E+A) (F*D)-(B+C)
You can validate your puzzle solution with certitude.