| http://www.w3.org/ns/prov#value | - Each light is a word from which three consecutive letters have been omitted; the clue is a 'number plate' showing the discarded letters, the light-length and sum of the letter-values of the light. 1502 12/03/1959 Four Square Det Numerical puzzle; the grid represents a 4 x 4 determinant, the values of 5 of whose second-order minors are given. 1503 19/03/1959 Today???s Code Leon Down clues, and top
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