23. Nf3 is a blockade and 24. ... b4 blockades *two* Pawns.
Ljubojevic vs A Planinc, 1971  (C78) Ruy Lopez, 35 moves, 0-1
58.Nce4, 61.Na2+, 63.Nb1 and 68.Ke2 blockaded vital Pawns
A Granovskiy vs U Grochocinska, 2013  (B06) Robatsch, 77 moves, 1-0
2 games |