(A00) Twyble
1. Nc3 c5 2. Rb1
(A00) Novosibirsk
1. Nc3 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qh4
(A00) Nimzovich
1. Nc3 e5
(A00) Nimzovich Battambang
1. Nc3 e5 2. a3
(A00) Nimzovich Napoleon
1. Nc3 e5 2. Nf3 Nc6 3. d4
(A00) Nimzovich Scandinavian
1. Nc3 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qa4
(A00) Gambit
1. Nc3 d5 2. e4 dxe4 3. d3
(A00) Kluver
1. Nc3 f5 2. e4 fxe4 3. d3
(A00) Anti-Pirc
1. Nc3 g6 2. h3
(A00) Tubingen
1. Nc3 Nf6 2. g4