Question: What is the name of an American popular science magazine that included a discussion by Solomon W. Golomb and Martin Gardner on mutilated chessboard problem?
Sentence (from "Graham's number"): Other specific integers (such as TREE(3)) known to be far larger than Graham's number have since appeared in many serious mathematical proofs, for example in connection with Harvey Friedman's various finite forms of Kruskal's theorem.
Relevant evidence: No