Reasoning based on this Japanese activity.
A game somewhat similar to 'noughts and crosses' on a much larger
This game is known as Pong hau k'i in China and Ou-moul-ko-no in Korea. Find a friend to play or try the interactive version online.
This is a game for two or more players.
Each player begins by writing 50 on their score sheet.
Place two dried peas into a plastic cup.
Toss the peas onto the game board.
Add the two numbers the peas land on.
Take the sum away from 50 and record the remainder.
Next player takes a turn.
In the following turns, the players take the sum of the numbers
away from the new remaining number.
The first player to reach zero wins.
Change the game by:
Using three peas instead of two.
Altering the starting number from 50 to 100.
Multiplying the numbers that the peas land on.
Making a different size game board with a different set of