Skip to main content
### Number and algebra

### Geometry and measure

### Probability and statistics

### Working mathematically

### Advanced mathematics

### For younger learners

# Two Stones

**Resources:**

A game board like the one above.

Each player needs two distinctive pieces such as two pebbles.

**To play:**

## You may also like

### Nim

Or search by topic

Age 5 to 18

- Game

In China this game is known as Pong hau k'i and in Korea it is called Ou-moul-ko-no.

A game for two players.A game board like the one above.

Each player needs two distinctive pieces such as two pebbles.

Place the two pebbles at the top and two at the bottom as shown below .

Take turns to slide one pebble along a line to an empty spot.

The first move will be to the middle.

**To win:** block your opponent so that they cannot move.

Next time you play swap start positions on the board with your opponent.

Printable NRICH Roadshow resource.

Start with any number of counters in any number of piles. 2 players take it in turns to remove any number of counters from a single pile. The loser is the player who takes the last counter.