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  2. Kakuro - Wikipedia

    en.wikipedia.org/wiki/Kakuro

    Kakuro or Kakkuro or Kakoro (Japanese: カックロ) is a kind of logic puzzle that is often referred to as a mathematical transliteration of the crossword. Kakuro puzzles are regular features in many math-and-logic puzzle publications across the world. In 1966, [1] Canadian Jacob E. Funk, an employee of Dell Magazines, came up with the ...

  3. Sum and Product Puzzle - Wikipedia

    en.wikipedia.org/wiki/Sum_and_Product_Puzzle

    Sum and Product Puzzle. The Sum and Product Puzzle, also known as the Impossible Puzzle because it seems to lack sufficient information for a solution, is a logic puzzle. It was first published in 1969 by Hans Freudenthal, [1][2] and the name Impossible Puzzle was coined by Martin Gardner. [3] The puzzle is solvable, though not easily.

  4. Word Sum Puzzle - Wikipedia

    en.wikipedia.org/wiki/Word_Sum_Puzzle

    A Word Sum Puzzle (also known as WSP) is a word game that requires simple mathematical operations, and vocabulary skills to be solved. The solution is always a single word that contains four or more letters. A WSP has a clue and two or more hints, where the clue is a meaning for the solution (a single word) and each hint gives the sum of the ...

  5. Nonogram - Wikipedia

    en.wikipedia.org/wiki/Nonogram

    Add the clues together, plus 1 for each "space" in between. For example, if the clue is 6 2 3, this step produces the sum 6 + 1 + 2 + 1 + 3 = 13. Subtract this number from the total available in the row (usually the width or height of the puzzle). For example, if the clue in step 1 is in a row 15 cells wide, the difference is 15 - 13 = 2.

  6. Sujiko - Wikipedia

    en.wikipedia.org/wiki/Sujiko

    Sujiko is a logic-based, combinatorial number-placement puzzle created by Jai Gomer of Kobayaashi Studios. [1] A completed Sujiko puzzle. The puzzle takes place on a 3x3 grid with four circled number clues at the centre of each quadrant which indicate the sum of the four numbers in that quadrant. The numbers 1-9 must be placed in the grid, in ...

  7. Wechsler Preschool and Primary Scale of Intelligence

    en.wikipedia.org/wiki/Wechsler_Preschool_and...

    The Wechsler Preschool and Primary Scale of Intelligence (WPPSI) is an intelligence test designed for children ages 2 years 6 months to 7 years 7 months developed by David Wechsler in 1967. It is a descendant of the earlier Wechsler Adult Intelligence Scale and the Wechsler Intelligence Scale for Children tests. Since its original publication ...

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