Hi Ruud,
I am glad to see a Samurai puzzle posted. It is amazing how few programs and websites really deal with this type of puzzle. I have only found one program that can generate samurai puzzles as a downloadable program. However, you cannot set techniques of anything else for that matter, so you have no clue as to what you are getting when the puzzle is generated.
I might suggest a samurai program like SudoCue would be a great project. I think even charging a fee would be well worth it. There have been so many samurais published, but no convenient way to solve them. Being able to input, through a text string, into a "Samurai SudoCue" program or a helper would really be fantastic.
What is the upper level technique needed for today's samurai?
Yes on the weekly question
Regards,
George