[pierrec]

I love the concept. I was left wanting more because larger puzzles are apparently not more difficult, they just seem to have a lot of solutions. But can we make them more difficult? Just in case anyone else wants more of a challenge... I hand-wrote a 10x10 that should be harder to crack:

    1  2  1  2  2  3  1  1  2  2
    3  2  3  3  3  3  3  3  3  3
    3  3  3  3  3  3  3  3  3  3
    2  1  2  2  3  2  1  1  3  1
    2  1  3  3  1  3  3  1  3  1
    3  3  1  3  3  3  3  3  3  3
    2  3  2  2  2  2  1  2  2  3
    3  3  3  3  1  3  3  1  3  2
    1  3  2  3  3  3  3  3  3  3
    2  1  3  3  2  2  2  2  1  F

Unless I made a mistake, the simplest solution is not easy to find. Obviously I was thinking about an algorithm to create harder "Jumping Julia" puzzles. Definitely doable, but for now I'll leave it at that!