Binary
Two symbols, no repeats
How to play
- Fill every cell with one of two symbols: a light dot or a dark dot.
- Never more than two identical symbols next to each other, across or down.
- Every row and every column holds as many light dots as dark dots.
- No two rows may be identical, and no two columns.
Tips
- Two identical symbols side by side force the opposite symbol on each end.
- Once a row has half of one symbol, the rest must be the other symbol.
- This puzzle is also known as Takuzu or Binairo.