Puzzle

(1) Prokes,FJ - = 1925 [,A] A Chameleon Echo is the way study composers describe what happens in this problem. 1.Bh4!! Bxh4 2.Rxg4 Bf2 [2...Bf1 3.Rxh4 d2+ 4.Ka5 d1Q 5.Rd4+ Qxd4 ] 3.Rxg2 d2 4.Rg5! d1Q 5.Rd5+ Qxd5 *