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The game uses a 3x3 square board. 2 players take turns to play, either placing a red on an empty square, or changing a red to orange, or orange to green. The player who forms 3 of 1 colour in a line wins.

Sumo

A number game requiring a strategy.

Daisy

A game for 2 players. Draw a daisy with at least 5 petals. Shade 1 or 2 petals next to each other. The winner shades the last petal.

Board Block Challenge

Age 7 to 11 Challenge Level:

Since this is essentially a game we did not expect many "solutions" although we do like to hear about strategies you use in games, even if you haven't come up with a strategy which always works yet.
The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.
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