It says “Mate in 3 —- not in 4”.

1. Rh2!!!! dxe2, 2. Rxe2! Rd3, 3. Rc2#!! (Black Rook is pinned by White Bishop on f1j.

1. Rh2!!! dxe2, 2. Rxe2! Rc3, 3. Rc2#!! (discovered check and mate)

1. Rh2!!!! (Waiting move) Bd4, 2. Qe6+! Bd5, 3. Qxa6#!

V-1

1.Rh2! Bf2
2.e3 Rxg4
3.Qc5#

V-2

1.Rh2 Bf2
2.e3 Rxe3
3.Qc5#

V-3

1.Rh2 Bd5
2.Qc3#

To my surprise I solved it quickly.