I am sure that you have not seen elsewhere this sudoku variant : the Spark Sudoku (Rules of Spark Sudoku). This is a Sudoku, but instead of having a square form this puzzle has a shape of a star. So I present you three puzzles each ones having 7 branchs (a heptagram). You need to use numbers from 1 to 8.
#1
The printable files PDF.
Puzzle : spark_4_7_00003.pdf
Solution : spark_4_7_00003_sol.pdf
#2
The printable files PDF.
Puzzle : spark_4_7_00004.pdf
Solution : spark_4_7_00004_sol.pdf
#3
The printable files PDF.
Puzzle : spark_4_7_00005.pdf
Solution : spark_4_7_00005_sol.pdf
As I told you, this is the only place on the web that you can find these puzzles. If you like Spark Sudoku why not buying my book Spark Sudoku Challenge ? You will be happier and everyone will envy you.
You could also try a more complex version the Super Spark Sudoku in my book Super Spark Sudoku Challenge. This variant is a little bit larger so you need to use numbers from 1 to 12. I am going to publish new Super Spark puzzles soon (right now you could try the old ones - look in menu).
Enjoy !
