NIM-ble Thinking Puzzle - Solution

The Puzzle:

NIM-ble Thinking

The game of "NIM" involves rows of matches laid out to make a triangle. When it is your go, you must take one or more matches away BUT THEY ALL MUST COME FROM THE SAME ROW.

You win if you force the other person to take the last match.

The diagram shows the game at the start and in mid-play. It is your go. Which match(es) should you take to win the game?

Our Solution:

Then after three more moves your opponent takes the last match and you win!

Puzzle Author: Stephen Froggatt

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