Puzzle solving aid and method

Details Puzzle solving aid and method Puzzle solving aid and method

2008-09-02

2008-09-02

Wong, Steven (Department: 3711)

Amusement devices: games

Puzzles

Jumping movement

C273S14800B

Reexamination Certificate

active

11373677

ABSTRACT:
A puzzle solving aid in combination with a sudoku-type numerical puzzle. The puzzle solving aid (PSA) comprises a square or rectangular sheet having opaque or clouded portions at the four outer corners thereof and clear portions forming a vertical see-through column and a horizontal see-through row. The puzzle solving aid includes a central open area so a puzzle solver can pencil in the possible solution numbers for a particular space on a puzzle grid. A method of use related to puzzle solving and a business method for marketing a combined puzzle and puzzle solving aid are described.

REFERENCES:
patent: 1642424 (1927-09-01), Massey
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patent: 2055160 (1936-09-01), Scofield
patent: 4171815 (1979-10-01), Sturtz
patent: 4595203 (1986-06-01), DeLano et al.
patent: 4674192 (1987-06-01), Libit
patent: 5149097 (1992-09-01), Tonello et al.
patent: 5288068 (1994-02-01), Roth
patent: 2007/0182097 (2007-08-01), Dowe

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