Here is an interesting logic number game. You cannot play on the screen, it is a solver. First you must enter a valid Sudoku puzzle, and the lisp routine will solve the puzzle.
It's not a platform to play on screen, it's actually a Sudoku game solver. There are a lot of sudoku online games such as: http://www.online-sudoku.org/
The code contains only 2 functions, c:Sudoku and c:Input. Open the dwg and there is a 9x9 standard sudoku grid. Look for a valid game online and enter values with the c:Input function.
It is tricky at the beginning to make all the input, but once you get used to it it's not that hard. Once all the input is done enter c:Sudoku to run it. And it will give you the answer.
At the beginning I wanted it to be played on screen, but that meant I had to make a huge data base of games and their solutions. So the challenge was to make it viceversa, solve it but cannot play it. To enter new game erase all values except grid.
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AutoCAD Games
Sudoku Solver
