Sudoku86 is a Sudoku game designed to run under DOS. It is a 16-bit, real mode application using CGA or VGA video output (320x200). It has been compiled using Turbo C 2.0.1. Sudoku86 comes with 100 embedded Sudoku grids of variable difficulty, and allows to load external level files, too.Sudoku86 requires:- 50K of free conventional memory- a 8086/8088 compatible CPU- a CGA, MCGA or VGA graphic card- a two-button mouse- a DOS 3.0+ compatible operating systemSudoku86 is published under the 2-clause BSD license.