Title

Question

Prespective:

White

Black

Turn:

White

Black

Validate

Castle

Re3

fxe3

Ne5

fxe5

Be6

Rf5

f1=Q

Bd7#

This one features a striking blend of line opening and zugzwang. It's White to play and mate in 5. What is the key move?
0
1.Re3 fxe3 (Black stops the threat of Rexe7#) - How does White continue?
0
2.Ne5 fxe5 (Black prevents Bc6#) - How does White proceed?
0
3.Be6 f1=Q - How should White play?
0
4.Rxf1 e2 - Final move?
0
3.Be6 g3 - What should White play?
0
4.Rf3 f1=Q and now?
0
3.Be6 e4 - What should White play?
0
4.Rf4 g5 - And now?
0
What if 3.Be6 g5? What should White play?
0
4.Rf5 f1=Q and now?
0