#probchat slow chat problem of the cubes for October 25, 2015

An approach to the slowchat #probchat problem of a 5x6x9 cube building with lines drawn to intersect opposite corners. How many cubes would have writing on them from the line segment diagonal? Submitted by Fred Harwood @HarMath

Click the link below to view the .doc

Diagonals on checkerboard

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