Originally posted by ilywrin
Looking at the original problem, I thought whta if White play 1. d3 2. Kd2 3. Kc3 4. Kb4, however all my attempts to mate with Black fell short of one move. Interestingly enough, [b]1.d3 2.Kd2 3. Kc3. 4. Kd4 leads to mate in four moves (perhaps there's more than one solution to that)! Hehehe, I found that mental excercise quite enjoyable[/b]
In this version, Black doesn't even have to wait for move 4.
1.d3 e6 2.Kd2 Qe7 3.Kc3 Qb4#
Or he can interpret the stipulation strictly and play
1.d3 f5 2.Kd2 e6 3.Kc3 Qe7 4.Kd4 Qc5#
I can't find a mate if white is allowed to play 4.Kb4 though.