Ambassadeurs : Drasko, Milan (31x), Hausner, Ivan (20x), Shulman, Yury (14x), Matveeva, Svetlana (13x), Bartel, Mateusz (13x), Vysochin, Spartak (13x), Rendle, Thomas E (13x), Jansa, Vlastimil (12x)
4…Nf6 — 8.7% (313 parties)
Ambassadeurs : Wiebe, Patrick (3x), Walton, Alan J (3x), Radulov, Ivan (2x), Diez del Corral, Jesus (2x), Westerinen, Heikki M.J. (2x), Zivkovic, Momcilo (2x), Balog, Imre (2x), Ivan-Gal, Hanna Krisztina (2x)
4…Nc6 — 4.1% (146 parties)
Ambassadeurs : Hallqvist, Niklas (6x), Wrba, Klaus (5x), Shebetah, Wajdy (3x), Korzubov, Peter (2x), Hyldkrog, Lars (2x), Hergott, Deen (2x), Romanishin, Oleg M (2x), Lehikoinen, Pertti Ilari (2x)
1950 — Walther, Ernst vs Gabler, Bernd — 1-0 — ? 1959 — Arulaid, Alexander vs Villard, Feliks — 1-0 — Tartu 1970 — Christiansen, Hjalmar vs Leskowsky, Zoltan Emerk — 0-1 — ? 1971 — Callahan, Richard vs Leskowsky, Zoltan Emerk — 1/2-1/2 — corr NAICCC I 1975 — Kapengut, Albert vs Kupreichik, Viktor D — 1-0 — Minsk BLR
4…Nf6 — 8.7% (313 parties)
1974 — Ruotanen, Aarne vs Bjorkqvist, Armas — 1-0 — ? 1975 — Westerinen, Heikki M.J. vs Keene, Raymond D — 1-0 — Dortmund GER 1978 — Radulov, Ivan vs Diez del Corral, Jesus — 1/2-1/2 — Buenos Aires olm 1978 — Radulov, Ivan vs Diez del Corral, Jesus — 1/2-1/2 — olm Buenos Aires 1979 — Westerinen, Heikki M.J. vs Karlsson, Lars 1937 — 1-0 — Malmo SWE
4…Nc6 — 4.1% (146 parties)
1968 — Rittner, Horst vs Kellner, John Vincent — 1-0 — 6th CC World Ch Final 6871 1969 — Penrose, Jonathan vs Fuller, Maxwell Leonard — 1-0 — Rhyl ch-BCF 1977 — Helmertz, Per-Inge vs Ornstein, Axel — 1/2-1/2 — Stockholm SWE 1977 — Radulov, Ivan vs Romanishin, Oleg M — 1/2-1/2 — Leningrad RUS 1978 — Huergo Silverio, Jose Ramon vs Korzubov, Peter — 1-0 — Sas van Gent NED
4…dxe4 — 3.3% (119 parties)
1974 — Dalhuisen, Tiemen vs Kellner, John Vincent — 1/2-1/2 — ? 1980 — Dunne, David vs Qi, Jingxuan — 1/2-1/2 — La Valetta 1981 — Radulov, Ivan vs Dobosz, Henryk — 1/2-1/2 — Copenhagen DEN 1981 — Hulak, Krunoslav vs Skembris, Spyridon — 1-0 — Budva MNE 1982 — Rasmussen, Karsten vs Hergott, Deen — 1/2-1/2 — Copenhagen DEN
Ding, Liren — 1 partie
1959 — Arulaid, Alexander vs Villard, Feliks — 1-0 — Tartu
1970 — Christiansen, Hjalmar vs Leskowsky, Zoltan Emerk — 0-1 — ?
1971 — Callahan, Richard vs Leskowsky, Zoltan Emerk — 1/2-1/2 — corr NAICCC I
1975 — Kapengut, Albert vs Kupreichik, Viktor D — 1-0 — Minsk BLR
1975 — Westerinen, Heikki M.J. vs Keene, Raymond D — 1-0 — Dortmund GER
1978 — Radulov, Ivan vs Diez del Corral, Jesus — 1/2-1/2 — Buenos Aires olm
1978 — Radulov, Ivan vs Diez del Corral, Jesus — 1/2-1/2 — olm Buenos Aires
1979 — Westerinen, Heikki M.J. vs Karlsson, Lars 1937 — 1-0 — Malmo SWE
1969 — Penrose, Jonathan vs Fuller, Maxwell Leonard — 1-0 — Rhyl ch-BCF
1977 — Helmertz, Per-Inge vs Ornstein, Axel — 1/2-1/2 — Stockholm SWE
1977 — Radulov, Ivan vs Romanishin, Oleg M — 1/2-1/2 — Leningrad RUS
1978 — Huergo Silverio, Jose Ramon vs Korzubov, Peter — 1-0 — Sas van Gent NED
1980 — Dunne, David vs Qi, Jingxuan — 1/2-1/2 — La Valetta
1981 — Radulov, Ivan vs Dobosz, Henryk — 1/2-1/2 — Copenhagen DEN
1981 — Hulak, Krunoslav vs Skembris, Spyridon — 1-0 — Budva MNE
1982 — Rasmussen, Karsten vs Hergott, Deen — 1/2-1/2 — Copenhagen DEN