Chess problem details
 Chess problem diagram
Category: Fairy
Type: h#n
Stipulation(s): H#5
b)bSh2-->h3
Magazine: Pat a Mat 110, 12/2019, Pr.451
Year of Publishing: 2019
Conditions:
Einstein + PWC
Solution:

a) diagram

1.Kf5-e4  Kh5-g5 
2.h7-h5   Kg5*h5[+bPg5]  
3.Ke4-f3 f4*g5=S[+bPf4] +  
4.Kf3-g3 Sg5-h3=P  
5.Kg3*h3[+wPg3] g3*f4=S[+bPg3] #

b) bSh2-->h3 

1.Sh3-g5=P Kh5-h6  
2.Kf5-g4  Kh6-g7  
3.Kg4-h5 f4*g5=S[+bPf4]  
4.Kh5*g5[+wSh5] Kg7-f7
5.Kg5-h6 Sh5*f4=B[+bPh5] #

Comments:

The white piece gives checkmate from the initial field f4, the black piece captured in the last move blocks the black king.(Author)

Tags:
Circuit, switchback, ideal mates, Davaine, sacrifice
        

       

       

       
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