Chess/Puzzles/Directmates/Three-move 1/Solution

1.e7 Kc7

1... Kb5 leads to 2.e8Q+ and 3.Qea4#

2.e8B! Kc8 (2.e8Q?? would stalemate the black king.)

3.Qd7#

a b c d e f g h
8 a8 b8 c8 d8 e8 f8 g8 h8 8
7 a7 b7 c7 d7 e7 f7 g7 h7 7
6 a6 b6 c6 d6 e6 f6 g6 h6 6
5 a5 b5 c5 d5 e5 f5 g5 h5 5
4 a4 b4 c4 d4 e4 f4 g4 h4 4
3 a3 b3 c3 d3 e3 f3 g3 h3 3
2 a2 b2 c2 d2 e2 f2 g2 h2 2
1 a1 b1 c1 d1 e1 f1 g1 h1 1
a b c d e f g h