ONE THREE FIVE SEVEN GAME
This is a game for 2 players. You should have 16 objects.
Arrange the objects in 4 rows with 7 on the bottom row, then a row of 5, then 3, then 1 at the top.
Players take turns to choose a row and to remove at least one object from that row.
The player who removes the last object wins the game.
Click here to download a worksheet.
Click here for an article that explains the winning strategy.
Resources: 16 small objects. Bottle tops or stones are good for this.
This Daisy and Nim-7 games are adapted from NRICH tasks with permission of the University of Cambridge. All rights reserved. See DAISY and NIM-7
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