Classic backgammon · Cube

The doubling cube, simple version

The cube changes the value of the game. You can see it resting in the middle of the board: nobody owns it yet, and the game is worth one point. When one player doubles, the other must take the game at twice the value, or drop and concede one point.

5 min · 3 steps

This is the written edition of an interactive Boardgammon lesson — in the app, the coach narrates while you play every move on a live board.

Step 1 · Cube value

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The cube changes the value of the game. You can see it resting in the middle of the board: nobody owns it yet, and the game is worth one point. When one player doubles, the other must take the game at twice the value, or drop and concede one point.

Coach narration

Step 2 · Early cube decision

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On the board: Even start

At the starting position neither side has an advantage. What should White do with the cube?

Choose the cube action.

Quick check

  • Do not double
  • Double now
  • Drop, refusing a double
Show the correct answer

Correct answer: Do not double — Correct. Roll first; earn an advantage before doubling.

  • Double now — Not yet. A good double asks the opponent a real question.
  • Drop, refusing a double — Only the player receiving a double can drop. White owns the turn here.

Coach narration

Step 3 · What a double asks

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On the board: Lead

Later, White may earn a real race lead. A double is strongest when it asks the opponent whether the game is worth continuing at twice the value.

Choose what a good double asks.

Quick check

  • Play for more or concede now
  • Move twice this turn
  • Reroll bad dice
Show the correct answer

Correct answer: Play for more or concede now — Correct. A double turns board pressure into a stake decision.

  • Move twice this turn — The cube never grants extra checker moves. Dice still control movement.
  • Reroll bad dice — The cube cannot reroll dice. It only changes the game value.

Coach narration

What you learned

You now know the cube is optional, strategic, and strongest when your position creates real pressure.

Coach narration