Back
Magnets (diagonal) (942)
Instruction:
The grid is partitioned into regions of two square cells each (note that only region borders are drawn). Put "positive" (+) and "negative" (–) symbols into some cells, at most one symbol per cell, such that each region either has two symbols or no symbols at all. Adjacent cells (even within a region) cannot contain the same symbol.
The numbers around the grid indicate the exact number of symbols of the specified type that must be placed in each diagonal. If a number is not given, there might be any number of symbols of the specified type.