Who's Queen

White to play and mate in two moves
 

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

  

Solution

  1. Bxe6+    Kf8
  2. Qa8       mate       or
  1. Bxe6+    Kh8
  2. Qh4       mate

(Note all other first moves by white will prevent mate in two moves)