H. G. Muller wrote on Thu, Nov 9, 2017 09:07 PM UTC:
There is a difference between restraining three Pawns statically, and being able to restrain three Pawns under zugzwang. I don't think the Knight can do the latter either.
BTW, Frogs have mating potential in pairs (maximally 30 moves), and together with Bishop (37 moves) or Knight (39 moves). Bishop + Knight also takes 39 moves, worst case.
[Edit] Interesting. I fed your position to Fairy-Max (which indeed thinks it is draw), and then I tried some other Pawn constellations. But instead of trying to prevent their promotion, it plays Fc4-f4-i4-h5-i6-i3, to deliver a perpetual check between i3 and j4! :-)
There is a difference between restraining three Pawns statically, and being able to restrain three Pawns under zugzwang. I don't think the Knight can do the latter either.
BTW, Frogs have mating potential in pairs (maximally 30 moves), and together with Bishop (37 moves) or Knight (39 moves). Bishop + Knight also takes 39 moves, worst case.
[Edit] Interesting. I fed your position to Fairy-Max (which indeed thinks it is draw), and then I tried some other Pawn constellations. But instead of trying to prevent their promotion, it plays Fc4-f4-i4-h5-i6-i3, to deliver a perpetual check between i3 and j4! :-)