Two players · triangle of circles
How to play Black Hole
Take turns writing your numbers, 1 up to 10, in a triangle of 21 circles. The circle left empty is a black hole that swallows its neighbours. The player who loses fewer points to it wins.
What you need
- Two pens of different colours (or one pen and underlining)
- A sheet of paper
- Two players
How to set up
Draw a triangle of 21 circles in six rows. Each player uses their own colour, or one of you underlines.
1. Draw a triangle of 21 circles: rows of 1, 2, 3, 4, 5 and 6.
2. Take turns writing your numbers from 1 to 10, one circle each turn.
3. The circle left empty is the black hole: add up your numbers touching it.
How to play
- Write your next number in any empty circle: your 1 first, then 2, up to 10.
- Players take turns; the starting player writes first each round.
How to win
Lose fewer points to the black hole than your rival. After twenty turns, one circle is empty: the black hole. Each player adds up their numbers in the circles touching it. The lower total wins; equal totals are a draw.
Tip Keep your high numbers next to full circles, and save a few low ones for the end.
Play Black Hole in the app
- Play against doodled characters, from beginner to expert.
- Pass and play with a friend on one device.
Every game comes with a step-by-step tutorial and printable sheets.