The weekend challenges can be solved without wasting points until Monday 11:59:59pm (CET). For more information see the rules of the game.
Enjoy the puzzle!
Project: 4TU.AMI
Challenge:
Mondrian the painter pixy has designed a square Christmas card, which he has divided into 64 little square cells, as shown in the picture. Mondrian dips the paintbrush into the red paint pot and draws a long continuous brushstroke that traverses each of the 64 square cells exactly once and that returns to the starting cell in the end.
The picture shows a red brushstroke that traverses 48 cells in a straight line and 16 cells in quarter circles. Since a quarter circle consumes less paint than a straight line, Mondrian would like to find an efficient brushstroke that maximizes the number of quarter circles.
What is the largest possible number M of quarter circles in such a brushstroke?
Artwork: Julia Nurit SchÃ¶nnagel
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Possible answers: