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Have You Got It?

Can you explain the strategy for winning this game with any target?


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.


A new card game for two players.

Diamond Collector

Age 11 to 16
Challenge Level

In the game below, twenty diamonds have been placed on a grid.

You can enter the equations of three straight lines.
Any diamond that lies on one of your lines counts towards your total.

Try to collect as many diamonds as you can!

Once you've had a go at Level 1, you can click on the purple cog to access the Settings menu and try Levels 2 and 3.