Solution to Puzzle #185: Marker on a 9×9 Board

This was a great puzzle, and I received correct answers from Suman Saraf and Prakhar – very well done!

Please see the figure below.

Solution to Puzzle #185

Let’s divide the entire board, except for the central square, into 2×1 dominos. For example, it can be done as shown in the diagram. At each move, Anisha shifts the marker into some square of the same domino. If Arushi then moves the marker to the second square of the same domino, she will always be able to move, and thus Arushi will win.

Hope you all enjoyed the puzzle!

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1 Response to Solution to Puzzle #185: Marker on a 9×9 Board

  1. This was a beautiful puzzle. Thanks

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