Chess tactic
Endgame Puzzle (540)
After the setup move Rf7, it is Black to move. Find the forcing continuation before checking the solution.
What to look for
A tactic from a reduced-material position where king activity and promotion threats matter.
Solution
42... Re1+ 43. Rxe1 43... Rxe1#The full forcing line from the source position is:
42. Rf7 42... Re1+ 43. Rxe1 43... Rxe1#
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