Sudoku Collection

All files are in CPT library format and you should have CPT Crosswords program to read these files. Extract the archives downloaded from this page into separate directory, adjust the folder setting of the program (in Browse tab as Folder Type select Libraries, click on 'Add New' button and select the directory), and browse the new libraries (click on 'Start' button.)

Masks

The 'masks' are empty sudoku diagrams showing the positions of the givens. These files are used by the generator CPT Sudoku for constrained generation.

Size: 09x09, 195 KB, 20717 non-symmetric masks, 17 givens, 2010, these are the masks known to have sudoku puzzles.
Warning: the masks below are not known if they have puzzles:
Size: 09x09, 10 masks, 18 givens, 2010
Size: 09x09, 30 masks, 19 givens, 2010
Size: 09x09, 10 masks, 20 givens, 2010


Puzzles

The 'puzzles' are sudokus, ready for printing - in CPT Editor's menu select File | Document View-Print.
To obtain an answer (solved sudoku), in CPT Editor's menu select Run | Solver. To print the obtained answer, in CPT Editor's menu select File | Document Options; in Style tab of the dialog select By Settings radio button; in Include tab select only Answers as Grid check box; then in CPT Editor's menu select File | Document View-Print.

Size: 06x06, 25 puzzles, 8 givens, 2010
Size: 08x08, 30 puzzles, 16 givens, 2010
Size: 09x09, 2 puzzles, 18 givens, 2010
Size: 09x09, 5 puzzles, 19 givens, 2010
Size: 09x09, 25 puzzles, 20 givens, 2010
Size: 09x09, 50 puzzles, 21 givens, 2010
Size: 09x09, 20 puzzles, 22 givens, 2010
Size: 09x09, 20 puzzles, 23 givens, 2010
Size: 09x09, 20 puzzles, 24 givens, 2010
Size: 09x09, 25 puzzles, 25 givens, 2010
Size: 09x09, 30 puzzles, 26 givens, 2010
Size: 10x10, 20 puzzles, 28 givens, 2010
Size: 12x12, 20 puzzles, 44 givens, 2010
Size: 15x15, 20 puzzles, 72 givens, 2010
Size: 16x16, 10 puzzles, 82 givens, 2010
Size: 18x18, 20 puzzles, 130 givens, 2010
Size: 20x20, 10 puzzles, 150 givens, 2010
Size: 25x25, 15 non-symmetric puzzles, 271-180 givens, 2010

top of page | cpt home