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Challenge 2: 20 stones

20 Pebble Tinies Miniature Pebbles Tiny Craft Stones Bulk | Etsy | Miniatures, Pebble art, Pebbles

Try playing the game in different ways with a pile of 20 stones. What will be the winning strategy in this case? Should you take the 1st turn or the 2nd turn? Why?

What students worked out4

  • Student 3

    person with first turn will win for all even numbers

  • Student 6

    sir I think 1st turn

  • Student 1

    1’st turn wins

  • Student 4

    we should take the second turn