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Anonymous
9 years agoAny 2 x 2 square on the grid may not contain the same symbol twice...
Anonymous
9 years agoI had failed to observe that the grid is marked that way. So I thought I had a viable row/column clear, but didn't realize the square mattered too. Well! That sure changes things a bit!
- 9 years ago
Yeah, it actually makes things easier.
- SofaJockeyUK9 years agoHero+
Not every puzzle has squares, but the areas are outlined.