Keres vs Y Estrin, 1941  (C32) King's Gambit Declined, Falkbeer Counter Gambit, 27 moves, 0-1 Krasinski vs Y Estrin, 1947  (C32) King's Gambit Declined, Falkbeer Counter Gambit, 11 moves, 0-1 Y Shteinsapir vs Y Estrin, 1949 (C32) King's Gambit Declined, Falkbeer Counter Gambit, 40 moves, 0-1 Antoshin vs Y Estrin, 1953 (C31) King's Gambit Declined, Falkbeer Counter Gambit, 31 moves, 0-1 F Cheremisin vs Y Estrin, 1956  (C31) King's Gambit Declined, Falkbeer Counter Gambit, 39 moves, 0-1 J Kellner vs Y Estrin, 1968  (C31) King's Gambit Declined, Falkbeer Counter Gambit, 33 moves, 1-0 6 games