Correct answer: c2-c4 1.c2-c4 ! zugzwang. 1...d4*c3 ep. 2.g2-g4 + 2...f4*g3 ep. 3.e2-e4 # 2...h5*g4 + 3.h3*g4 # 1...c7-c5 2.b5*c6 e
