GAME RULES

What Is the 8-9-12 Rule?

The 8-9-12 rule is a classic backgammon formula used to quickly evaluate a position during a pure race. It helps you decide when to offer the doubling cube and whether your opponent should take it.


The rule is based on each player’s remaining pip count:

  • Double when your opponent’s pip count is at least 8% higher than yours.
  • Redouble when it is at least 9% higher and you own the cube.
  • Your opponent should take the double if their pip count is no more than 12% higher than yours.

To make pip-count comparisons easier, enable Show Pip Count and Advantage in the game settings. A numerical indicator at the edge of the screen will show your pip-count advantage as a percentage.

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