On: Ask HN: Who has had a successful PWA product?

[palsecam]

Oh, you can play in “draw 3 by 3” mode too: https://FreeSolitaire.win/turn-three ;-)

(You can also choose the mode in the New Game dialog.)

And yes, it’s indeed harder. The solving algorithm has a winning rate of 52% in “turn one” mode, but only 18% in “turn three”.