No. 1574 Vitaly Medintsev &
Aleksey Oganesjan Russia
original - 26.12.2020
Solution: (click to show/hide)
(C+ by Popeye 4.85)
We have managed to implement probably a NEW idea which might be called
'Promoted Anticipatory Grimshaw'.
Anticipatory Grimshaw — Grimshaw interferences on thematic lines which are yet to emerge (Encyclopedia of Chess Problems, p.194).
Apparently, the idea is a type of Anticipatory Grimshaw when both thematic pieces promote during the solution.