Correct answer: Ne41. d:c5? waiting 1. ... e2 2. Rh3# 1. ... Nc6~ 2. Rd4# 1. ... d4 2. B:c4# But 1. ... c3! 1. N:c4? waiting 1. ... e2 2. Qb3# 1. ... Nc6~ 2. N<