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Pen-and-paper game for two or three people

The Black Hole

You take turns putting your numbers into the circles. The last free circle becomes the black hole. Whoever has the most points around it wins. (Detailed rules at the very bottom)

Set up the game

Who is playing?

Game mode
Who starts?
Rules and controls
  • In the normal game with two players, the board has 21 circles in a triangle of 6 rows. You take turns writing your numbers from 1 to 10 into a free circle: first the 1 of the first person, then the 1 of the second, then the 2 of the first, the 2 of the second, and so on. After 20 numbers exactly one circle is left free.
  • In the normal game with three players there is a seventh row, so the triangle has 28 circles. Everyone writes the numbers from 1 to 9, taking turns in the same order: 1, 1, 1, then 2, 2, 2 and so on. After 27 numbers exactly one circle is left free.
  • The quick game with two players is shorter: the board is a diamond standing on its point. It has 9 circles in rows from top to bottom with 1, 2, 3, 2 and 1 circles. You only write the numbers 1 to 4. After 8 numbers exactly one circle is left free.
  • The quick game with three players has a diamond with 16 circles in rows with 1, 2, 3, 4, 3, 2 and 1 circles. Everyone writes the numbers 1 to 5. After 15 numbers exactly one circle is left free.
  • The free circle is the black hole.
  • The numbers in the circles that touch the black hole are counted. Everyone adds up only their own numbers. Whoever has the most points wins. There is only one winner. If several people have the same number of points, the game ends in a draw.
  • Controls: tap or click a circle, check the preview and confirm with “Place”. With a mouse, a double-click on a circle places the number straight away. With the keyboard, choose the circle with the arrow keys and place with Enter.