(A50) Mexican
1. d4 Nf6 2. c4 Nc6
(A50) Mexican (Horsefly)
1. d4 Nf6 2. c4 Nc6 3. d5 Ne5 4. f4
(A50) Saemisch
1. d4 Nf6 2. c4 b6
(A50) Saemisch (Marienbad)
1. d4 Nf6 2. c4 b6 3. Nc3
(A50) Medusa
1. d4 Nf6 2. c4 g5