Chess/Puzzles/Directmates/Three-move 5/Solution

1. d4 Kh5

If 1... Kg4 then 2. e4+ Kh4 3.g3#

2. Qd3, and

3.Qh3#

a b c d e f g h
8 8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
a b c d e f g h

Note that h4 is the only place on the board where the black king is mated so quickly.