Chess problem details
 Chess problem diagram
Category: Helpmates
Type: h#n
Stipulation(s): H#3,5 2 sol
Magazine: Shakhmatnaya kompozitsiya No.153, 9/2020, Pr.E35
Year of Publishing: 2020
Conditions:
Solution:

1...          Kf6-e6
2.Rd5-d3 Sf3-d4 
3.Bf4-g3   Ke6-d5 
4.Bg3-f2   Bd8-g5 #

1...          Sf3-e5 
2.Ke3-d4 Kf6-f5
3.Bf4-d2  Bd8-h4
4.Bd2-c3 Bh4-f2 #

Comments:
Tags:
Ideal mates, echo, delayed Umnov, interference, W-W gate opening, selfblock
        

       

       

       
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