In BDG World 29, December 1987, we printed a BDG from the 1950 Hungarian Championship between two players who would later become international masters.
Honfi Jr, Karoly - Füster, Geza
6th Hungarian Championship, 1950
BDG, Ryder Gambit
1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Qxf3
5...c6 6.Bd3 Bg4 7.Qf2 e6 8.h3 Bh5 9.Nge2 Nbd7 10.0-0 Be7 11.g4 Bg6 12.g5 Qa5 13.gxf6 gxf6 14.Nf4 0-0-0 15.Bd2 Qg5+ 16.Kh1 h6?
17.Qh2? [ 17.Nxg6 fxg6+- (17...Qh5 18.Nxe7+ Kb8 19.Qg3+) ] 17...Qh4?
[ 17...Bxd3 18.cxd3+/-] 18.Rg1 [ 18.Bxg6 f5+- (18...fxg6 19.Be1! and Black loses his Queen.) ] 18...f5
19.b4 [ 19.Rxg6 Bd6 (19...fxg6 20.Nxe6) 20.Rgg1+-] 19...e5 20.b5 exf4 21.bxc6 Nb6 22.cxb7+ Kxb7 23.Bxf4
23...Bd6? [Black is lost anyway. 23...Rxd4 24.Qg2+] 24.Bxd6 Rxd6 25.Qxd6 Bh5 26.Qg3 1-0.
This game appeared in a small book by Laszlo Alfoldy, titled in its German edition, Gambit Eröffnungen. According to its author, in Hungary the BDG was advocated by the IM Karoly Honfi and his father.
N. J. Jensen wrote IM Honfi, asking him about his experiences with the BDG, and received a friendly reply. He wrote that his game against Füster was the only BDG he ever played in a tournament, but that his father had played the BDG for several years. Mr. Honfi, Sr., who worked in a post office, achieved the category of a candidate master. His son did not have that many of his father's games, but did enclose several with his letter. Here is one of those games.
Honfi Sr, Karoly – Serfozo
BDG, Ryder Gambit
1.d4 Nf6 2.f3 d5 3.e4 dxe4 4.Nc3 exf3 5.Qxf3 e6 6.Bd3 Nc6 7.Nge2 Bb4 8.Be3 Nd5 9.0-0
9...Qe7?! [9...0-0 10.Qh3 f5 11.Nxd5 exd5 12.Bxf5 Bxf5 13.Rxf5 Rxf5 14.Qxf5 Ne7 15.Qe6+ Kh8 16.c3 Bd6 17.Rf1 Qg8 18.Rf7 Re8 19.Bh6 Nf5 20.Qxf5 Bf8 21.Nf4 gxh6 22.Ne6 Bg7 23.Rxg7 1-0 Dravnieks,O-Dalgleish, Canada 1964.] 10.Bd2 [10.Nxd5 exd5 11.Nf4+/-] 10...Bxc3 11.bxc3 Bd7 12.c4 Nf6 13.Rab1 Rb8 14.Bg5 h6 15.Bh4 0-0
16.Qg3 [16.Bxf6?! Qxf6 17.Qxf6 gxf6 18.Rxf6+/-] 16...Qd6 17.Bxf6 Qxg3 18.Nxg3 gxf6 19.Nh5 Rfd8 20.Nxf6+ Kg7 21.c3 Ne7 22.Rf4 Ng6 23.Nh5+ Kg8 24.Rf6 Be8 25.Rbf1
25...c5?? [>=25...Ne5 26.Be2 Ng6+-] 26.Bxg6+- fxg6
And White mates in four. 27.Rf8+ Kh7 28.Nf6+ Kg7 29.Nxe8+ Rxe8 30.R1f7# 1-0.
Play through the games and download PGN here.