Increase max difficulty?

[lauren01001000]

Hi, thanks for an awesome game! Love the clean interface! Would it be possible to increase the maximum difficulty? I like it when the levels reach a point where you can't solve it with single-row or -column logic, and you have to start building decision trees. This only happens ~~1/3 times on difficulty 10 with a 10x10 grid - it'd be nice to have difficulty 12 or maybe even 15 to experiment with. The best one I ever had took me 1.5hrs and I had to go down like 5 branches of a decision tree. Thank you!

[mueller-ma]

Increasing the maximum allowed value in the difficulty slider doesn't help. Increasing the difficulty that way produces often empty rows/columns and thus making the level easier.
It probably requires some work to get the algorithm produce harder levels when increasing the slider.