NRICH: Two Stones

This game is known as Pong hau k’i in China and Ou-moul-ko-no in Korea.  

Age 5 to 18

A game for two players.

A game board like the one above.
Each player needs two distinctive pieces such as two pebbles.

To play:

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.

Math Topics
Deductive Reasoning & Logical Thinking
K-6, Middle School, High School
Kindergarten, 1st Grade, 2nd Grade, 3rd Grade, 4th Grade, 5th Grade, 6th Grade, 7th Grade, 8th Grade, 9th Grade, 10th Grade, 11th Grade, 12th Grade

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NRICH (University of Cambridge)

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Type of Resource

Board/Card Game

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