Mate in 3 or 4 is possible though 1. Pe4 Rxe4 2. Qxd5++ 1. Pe4 Rd6/7/8 or Rxd4 2. b4++ 1. Pe4 xc2 2. Nxc2 + (Black should resign here) 1. Pe4 d2 2. Ne2 + (Black should resign here) 1. Pe4 Bf2 2. Bxf2 (Black should resign here)