I found a method to generate all the Sudoku problems and find a method to solve all in a second
My software make a precalcul since 10 mn (but I can save the rresult for the next execution and generate all combinations
There is more than 5 000 000 000 of combinations: I can ggive you 10 000 000 000 if you want
The code is in Delphi (600 lines)
Give me problems (a lot) and I give you the answer
To have à UNIQUE probleme you have to give 72 numbers
and only at this time you havea unique possibility to win after yo have
a lot of solution for a pb!
Vive la France !!!!