
Original Fairy problems
JF-2021-I:
01.01.2021 - 30.06.2021
No. 1608 K. Seetharaman
India 
original - 29.04.2021
 white  Ra5 Pg7f7 Ke8
black  Kf6
h#1            b) Pg7-->h7            4+1 
All-in-Chess
All-in-Chess
Solution: (click to show/hide)

 
						    
It’s implemented in WinChloe since the last few versions. This problem is C+ by WinChloe!
Underpromotions on the mating move is impossible in orthodox chess. Recently I compiled a short article on this in Take&Make. I had also published two originals here earlier on this theme.
All-in-chess is now implemented in WinChloe. This problem is C+ with WinChloe 3.50.
It is also verified by Jacobi 0.7.5:
stip h#1 pieces white ke8 ra5 pf7 pg7 black kf6
cond allinchess