The f3-e4/f6-e5 Barrier ♜♞♝♛♚♝♞♜♟♟♟♟♟♟♟♟♟♟♟♟♟♟♟♟♜♞♝♛♚♝♞♜a8b7c6d5e4f3g2h1◀◀◀Start▶▶▶Petrosian, Tigran V — Spassky, Boris V World Championship 27th · 1969.05.09 · 1-0 ♜♞♝♛♚♝♞♜♟♟♟♟♟♟♟♟♟♟♟♟♟♟♟♟♜♞♝♛♚♝♞♜a8b7c6d5e4f3g2h1◀◀◀Start▶▶▶Kasparov, Garry — Kortschnoj, Viktor World Cup · 1989.08.?? · 1-0 ♜♞♝♛♚♝♞♜♟♟♟♟♟♟♟♟♟♟♟♟♟♟♟♟♜♞♝♛♚♝♞♜a8b7c6d5e4f3g2h1◀◀◀Start▶▶▶Capablanca, Jose Raul — Vidmar, Milan Sr New York · 1927.??.?? · 1-0 ♜♞♝♛♚♝♞♜♟♟♟♟♟♟♟♟♟♟♟♟♟♟♟♟♜♞♝♛♚♝♞♜a8b7c6d5e4f3g2h1◀◀◀Start▶▶▶Gligoric, Svetozar — Smyslov, Vassily Candidates Tournament · 1959.10.10 · 0-1 ♜♞♝♛♚♝♞♜♟♟♟♟♟♟♟♟♟♟♟♟♟♟♟♟♜♞♝♛♚♝♞♜a8b7c6d5e4f3g2h1◀◀◀Start▶▶▶Drumev, Avram — Matulovic, Milan Stip (Yugoslavia) · 1975.??.?? · 0-1 ♜♞♝♛♚♝♞♜♟♟♟♟♟♟♟♟♟♟♟♟♟♟♟♟♜♞♝♛♚♝♞♜a8b7c6d5e4f3g2h1◀◀◀Start▶▶▶Sokolov, Andrei — Portisch, Lajos World Cup · 1989.??.?? · 1-0 ◀ Triangle Attack hg-fg ▶