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Tic tac toe points (Posted on 2020-12-07) Difficulty: 3 of 5
You have an n × n grid of empty squares. You place a cross in all the squares, one at a time. When you place a cross in an empty square, you receive i+j points if there were i crosses in the same row and j crosses in the same column before you placed the new cross. Which are the possible total scores you can get?

No Solution Yet Submitted by Danish Ahmed Khan    
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  Subject Author Date
Solution Tom Ran2020-12-08 09:11:30
SolutionSolution (spoiler)Steve Herman2020-12-07 18:01:46
solnSteven Lord2020-12-07 09:07:19
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