March 10, 2006
#74: Su Doku
[[A square divided into 2x2 squares, the top-right one has an 1 in it, the bottom-right one has a 0, the two left ones are empty]]
[[Label: Binary Su Doku]]
March 10, 2006
[[A square divided into 2x2 squares, the top-right one has an 1 in it, the bottom-right one has a 0, the two left ones are empty]]
[[Label: Binary Su Doku]]