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wu :: forums    riddles    medium (Moderators: towr, SMQ, Eigenray, Grimbal, william wu, Icarus, ThudnBlunder)    Dominoes on a chessboard « Previous topic | Next topic » Pages: 1  Reply Notify of replies Send Topic Print    Author  Topic: Dominoes on a chessboard  (Read 2277 times) Jeremiah Smith Full Member Beep!     Posts: 172 Dominoes on a chessboard   « on: Jul 28th, 2002, 12:43am » Quote Modify It can't be done.   You would need 31 dominoes to cover 62 squares, since each domino covers two squares. The way a chessboard is set up, each domino will cover one white square and one black square. So, you would need 31 squares of each color. But, the squares in opposite corners are the same. Thus, there's 30 of one color and 32 of the other. So, it can't be done. IP Logged Pages: 1  Reply Notify of replies Send Topic Print Forum Jump: ----------------------------- riddles -----------------------------  - easy => medium   - hard   - what am i   - what happened   - microsoft   - cs   - putnam exam (pure math)   - suggestions, help, and FAQ   - general problem-solving / chatting / whatever ----------------------------- general -----------------------------  - guestbook   - truth   - complex analysis   - wanted   - psychology   - chinese « Previous topic | Next topic »

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