Can White Win Here Without Black Making a Mistake? How?
Sure, don't take the knight, get the triangle setup Qg3 vs Kg1/Ph2 when Kh1 won't do because it's not stalemate because of the remaining knight, bring the king.
After Qxb1, Q vs h2 pawn is a draw when the white king is too far away.
Sure, don't take the knight, get the triangle setup Qg3 vs Kg1/Ph2 when Kh1 won't do because it's not stalemate because of the remaining knight, bring the king.
After Qxb1, Q vs h2 pawn is a draw when the white king is too far away.
No. The question clearly applies to the final diagram where there are no knights. I agree though that white could have won earlier, e.g. with a better choice on move 1