Detail of chess problem

Chess problem details


	Category:	Helpmates
	Type:	h#n
	Stipulation(s):	h#4 b) bPf6-->f7 c) wKh7-->d6 d)=c) -bSg7 bPf6-->g7
	Magazine:	Shachmatija No.2, 7/2019, Pr.4066
	Year of Publishing:	2019

	Conditions:


	Solution:
	a) diagram 1.Sg7-h5 Bd8-e7 2.Qe4-h4 Be7-f8 3.Ra4-g4 e3-e4 + 4.Kf5-g5 Bf8-h6 # b) bPf6-->f7 1.Qe4-e6 Bd8-g5 2.Ra4-f4 Bg5-h6 3.Kf5-f6 e3f4 4.Sg7-f5 Bh6-g5 # c) wKh7-->d6* 1.Sg7-e6 Kd6-d7 2.Kf5-e5 Bd8-e7 3.Qe4-f5 Kd7-c6 4.Ra4-e4 Be7-d6 # d)=c) -bSg7 bPf6-->g7 1.Qe4-f3 Kd6-c5 2.Ra4-g4 e3-e4 + 3.Kf5-f4 Kc5-d4 4.g7-g5 Bd8-c7 #

	Comments:

	Tags:
	Ideal mates, exchange of pieces' sqaures, royal cross