(D71) Counterthrust
1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7
0/100 games played
(D71) Exchange
1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5.cxd5 Nxd5
0/100 games played