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Tango Puzzle

Balance suns and moons, avoid three in a line and follow every clue.

Tango rules, tactics & how to play

Learn the rules of Tango and the deductions that solve it, then play the board above.

Rules & how to play

The goal

Fill the grid with two symbols, suns and moons, so each row and column has an equal number of each and no three of the same symbol sit in a line.

The rules

  • No more than two of the same symbol may be next to each other, across or down.
  • Each row and each column holds equal numbers of suns and moons.
  • An equals sign between cells means they match; a cross means they differ.
Solving technique

Fill forced pairs first

Two identical symbols in a row force the opposite symbol on either side to avoid three in a line.

Use the sign clues

Equals and cross signs between cells lock relationships. Combine them with the balance rule to place symbols with certainty.

Count each line

Once half of a row is one symbol, every remaining cell in that row must be the other. Counting closes out lines fast.

Frequently asked questions

What are the rules of Tango?

Fill every cell with a sun or a moon so that each row and column has an equal number of each, no three identical symbols line up in a row or column, and any equals or cross sign between two cells is respected.

How do you solve a Tango puzzle?

Place forced symbols first, such as the opposite symbol beside any existing pair to avoid three in a row, use the equals and cross clues to lock relationships, and count each line so that once half is filled the rest is determined.

Is Tango solvable without guessing?

Yes. Tango is a logic puzzle with a single solution reachable by deduction. Combining the no-three-in-a-row rule, the equal-count rule and the sign clues always yields the next move.