Southport Chess Club
Challenge 4: Solution to Part 2: White to Move - Botvinnik: "White can gain a tempo and win."."
White can force a win by "Gaining a tempo" so that the pieces ended up in the same position, but with Black to play.
David Hull: "This sounds like defying gravity or cheating, but it is neither".
This analysis includes a move variation which is shown surrounded by [ ]. To play a move variation highlight the first move.