• NPR Sunday Puzzle (Jan 6, 2013): Sam Loyd Puzzle (16 boxes, 10 markers)

    Updated: 2013-01-06 18:49:49
    : , Blaine's Puzzle Blog Weekly discussion on the NPR puzzler , brain teasers , math problems and . more Sunday , January 06, 2013 NPR Sunday Puzzle Jan 6, 2013 Sam Loyd Puzzle 16 boxes , 10 markers NPR Sunday Puzzle Jan 6, 2013 Sam Loyd Puzzle 16 boxes , 10 markers Q : This challenge appeared in a puzzle column in the Woman's Home Companion in January 1913, exactly 100 years ago . Draw a square that is four boxes by four boxes per side , containing altogether 16 small boxes and 18 lines across , down and diagonal There are 10 ways to have four boxes in a line four horizontal rows , four vertical columns , plus the two long diagonals . There are also eight other shorter diagonals of two or three squares each . The object is to place markers in 10 of the boxes so that as many of the lines

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