ArchivesSpace at the University of Iowa

The suite of 28 prints are stored in one single folder. -- Source of annotation: Marvin or Ruth Sackner.

Each page depicts an image in color or black & white that recapitulates Noel's visual ideas. -- Source of annotation: Marvin or Ruth Sackner.

Luis created numerical and letter texts on a computer and overpainted the printed text. -- Source of annotation: Marvin or Ruth Sackner.

Wolfgang Schmidt was born in 1929 and died in 1995. -- Source of annotation: Marvin or Ruth Sackner.

This print is modelled after the Japanese number game using colors for mathematical symbols. Sudoku, also known as Number Place or Nanpure, is a logic-based placement puzzle. The aim of the puzzle is to enter the digits 1 through 9 in each cell of a 9×9 grid made up of 3×3 subgrids (called "regions") so that each row, column, and region contains exactly one instance of each digit. A set of clues, or "givens", constrain the puzzle such that there is only one way to correctly fill in the remainder. Completed sudoku puzzles are a type of Latin square, with the additional constraint on the contents of individual regions. Leonhard Euler is sometimes cited as the source of the puzzle based on his work with Latin squares. -- Source of annotation: Marvin or Ruth Sackner.