C00 French defense	C00 "French defense" 1. e4 e6 C00 "French defense, Steiner Variation" 1. e4 e6 2. c4 C00 "French - Reti (Spielmann) Variation" 1. e4 e6 2. b3 C00 "French - Steinitz attack" 1. e4 e6 2. e5 C00 "French - Labourdonnais Variation" 1. e4 e6 2. f4 C00 "French defense" 1. e4 e6 2. Nf3 C00 "French - Wing gambit" 1. e4 e6 2. Nf3 d5 3. e5 c5 4. b4 C00 "French defense" 1. e4 e6 2. Nc3 C00 "French - Pelikan Variation" 1. e4 e6 2. Nc3 d5 3. f4 C00 "French - Two knights Variation" 1. e4 e6 2. Nc3 d5 3. Nf3 C00 "French - Chigorin Variation" 1. e4 e6 2. Qe2 C00 "French - King's Indian attack" 1. e4 e6 2. d3 C00 "French - Reversed Philidor formation" 1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 Nc6 5. Be2
C00 French defense	C00 "French defense" 1. e4 e6 2. d4 C00 "Lengfellner system" 1. e4 e6 2. d4 d6 C00 "St. George defense" 1. e4 e6 2. d4 a6 C00 "French defense" 1. e4 e6 2. d4 d5 C00 "French - Schlechter Variation" 1. e4 e6 2. d4 d5 3. Bd3 C00 "French - Alapin Variation" 1. e4 e6 2. d4 d5 3. Be3
C01 French - Exchange Variation	C01 "French - Exchange Variation" 1. e4 e6 2. d4 d5 3. exd5 C01 "French - Exchange, Svenonius Variation" e4 e6 2. d4 d5 3. exd5 exd5 4. Nc3 Nf6 5. Bg5 C01 "French - Exchange, Bogolyubov Variation" 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nc3 Nf6 5. Bg5 Nc6
C02 French - Advance Variation	C02 "French - Advance Variation" 1. e4 e6 2. d4 d5 3. e5 C02 "French - Advance, Steinitz Variation" 1. e4 e6 2. d4 d5 3. e5 c5 4. dxc5 C02 "French - Advance, Nimzovich Variation" 1. e4 e6 2. d4 d5 3. e5 c5 4. Qg4 C02 "French - Advance, Nimzovich system" 1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 C02 "French - Advance Variation" 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 C02 "French - Advance, Wade Variation" 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Bd7 C02 "French - Advance Variation" 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 C02 "French - Advance, Paulsen attack" 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 C02 "French - Advance, Milner-Barry gambit" 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 C02 "French - Advance, Euwe Variation" 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7
C03-C09 French - Tarrasch	C03 "French - Tarrasch" 1. e4 e6 2. d4 d5 3. Nd2 C03 "French - Tarrasch, Haberditz Variation" 1. e4 e6 2. d4 d5 3. Nd2 f5 C03 "French - Tarrasch, Guimard Variation" 1. e4 e6 2. d4 d5 3. Nd2 Nc6 C04 "French - Tarrasch, Guimard Main line" 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 C05 "French - Tarrasch, Closed Variation" 1. e4 e6 2. d4 d5 3. Nd2 Nf6 C05 "French - Tarrasch, Botvinnik Variation" 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 b6 C05 "French - Tarrasch, Closed Variation" 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 C06 "French - Tarrasch, Closed Variation , Main line" 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cxd4 8. cxd4 C06 "French - Tarrasch, Leningrad Variation" 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cxd4 8. cxd4 Nb6 C07 "French - Tarrasch, Open Variation" 1. e4 e6 2. d4 d5 3. Nd2 c5 C07 "French - Tarrasch, Eliskases Variation" 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd8 C08 "French - Tarrasch, Open, 4.ed ed" 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 C09 "French - Tarrasch, Open Variation , Main line" 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6
C10 French - Paulsen Variation	C10 "French - Paulsen Variation" 1. e4 e6 2. d4 d5 3. Nc3 C10 "French - Marshall Variation" 1. e4 e6 2. d4 d5 3. Nc3 c5 C10 "French - Rubinstein Variation " 1. e4 e6 2. d4 d5 3. Nc3 dxe4 C10 "French - Fort Knox Variation" 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bd7 5. Nf3 Bc6 C10 "French - Rubinstein Variation" 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 C10 "French - Rubinstein, Capablanca line" 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Ne5 C10 "French - Frere (Becker) Variation" 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Qd5
C11 French defense	C11 "French defense" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 C11 "French - Swiss Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bd3 C11 "French - Henneberger Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Be3 C11 "French - Steinitz Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 C11 "French - Steinitz, Bradford attack" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. dxc5 Bxc5 7. Qg4 C11 "French - Steinitz Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. dxc5 Nc6 C11 "French - Steinitz, Brodsky-Jones Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. dxc5 Nc6 7. a3 Bxc5 8. Qg4 O-O 9. Nf3 f6 C11 "French - Steinitz Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 C11 "French - Steinitz, Boleslavsky Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 C11 "French - Steinitz, Gledhill attack" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. Qg4 C11 "French - Burn Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4
C12 French - MacCutcheon Variation	C12 "French - MacCutcheon Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 C12 "French - MacCutcheon, Bogolyubov Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. exd5 Qxd5 6. Bxf6 gxf6 7. Qd2 Qa5 C12 "French - MacCutcheon, Advance Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 C12 "French - MacCutcheon, Chigorin Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. exf6 C12 "French - MacCutcheon, Grigoriev Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. exf6 hxg5 7. fxg7 Rg8 8. h4 gxh4 9. Qg4 C12 "French - MacCutcheon, Bernstein Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bh4 C12 "French - MacCutcheon, Janowski Variation 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Be3 C12 "French - MacCutcheon, Dr. Olland (Dutch) Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bc1 C12 "French - MacCutcheon, Tartakower Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Nfd7 C12 "French - MacCutcheon, Lasker Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3 C12 "French - MacCutcheon, Duras Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3 7. bxc3 Ne4 8. Qg4 Kf8 9. Bc1 C12 "French - MacCutcheon, Lasker Variation , 8...g6" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3 7. bxc3 Ne4 8. Qg4 g6
C13 French - Classical	C13 "French - Classical" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 C13 "French - Classical, Anderssen Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. Bxf6 C13 "French - Classical, Anderssen-Richter Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. Bxf6 Bxf6 6. e5 Be7 7. Qg4 C13 "French - Classical, Vistaneckis Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Ng8 C13 "French - Classical, Frankfurt Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Ng8 6. Be3 b6 C13 "French - Classical, Tartakower Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Ne4 C13 "French - Albin-Alekhine-Chatard attack" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 C13 "French - Albin-Alekhine-Chatard attack, Maroczy Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 a6 C13 "French - Albin-Alekhine-Chatard attack, Breyer Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 c5 C13 "French - Albin-Alekhine-Chatard attack, Teichmann Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 f6 C13 "French - Albin-Alekhine-Chatard attack, Spielmann Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 O-O
C14 French - Classical Variation	C14 "French - Classical Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 C14 "French - Classical, Tarrasch Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Bd3 C14 "French - Classical, Rubinstein Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Qd2 C14 "French - Classical, Alapin Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Nb5 C14 "French - Classical, Pollock Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. Qg4 C14 "French - Classical, Steinitz Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. f4 C14 "French - Classical, Stahlberg Variation" 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. f4 O-O 8. Nf3 c5 9. Qd2 Nc6 10. O-O-O c4
C15 French - Winawer (Nimzovich) Variation	C15 "French - Winawer (Nimzovich) Variation" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 C15 "French - Winawer, Kondratiyev Variation" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd3 c5 5. exd5 Qxd5 6. Bd2 C15 "French - Winawer, fingerslip Variation" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd2 C15 "French - Winawer, Alekhine (Maroczy) gambit" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Ne2 C15 "French - Winawer, Alekhine gambit, Alatortsev Variation" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Nge2 dxe4 5. a3 Be7 6. Nxe4 Nf6 7. N2g3 O-O 8. Be2 Nc6 C15 "French - Winawer, Alekhine gambit" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Nge2 dxe4 5. a3 Bxc3+ C15 "French - Winawer, Alekhine gambit, Kan Variation" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Nge2 dxe4 5. a3 Bxc3+ 6. Nxc3 Nc6
C16 French - Winawer, Advance Variation	C16 "French - Winawer, Advance Variation" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 C16 "French - Winawer, Petrosian Variation" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Qd7 C17 "French - Winawer, Advance Variation" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 C17 "French - Winawer, Advance, Bogolyubov Variation" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 C17 "French - Winawer, Advance, Russian Variation" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Qg4 C17 "French - Winawer, Advance, 5.a3" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 C17 "French - Winawer, Advance, Rauzer Variation" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 cxd4 6. axb4 dxc3 7. Nf3 C18 "French - Winawer, Advance Variation" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 C18 "French - Winawer, Classical Variation" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qc7 C19 "French - Winawer, Advance, 6...Ne7" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 C19 "French - Winawer, Advance, Smyslov Variation" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. a4 C19 "French - Winawer, Advance, positional Main line" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Nf3 C19 "French - Winawer, Advance, poisoned pawn Variation" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 C19 "French - Winawer, Advance, poisoned pawn, Euwe-Gligoric Variation" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 Qc7 8. Qxg7 Rg8 9. Qxh7 cxd4 10. Kd1 C19 "French - Winawer, Advance, poisoned pawn, Konstantinopolsky Variation" 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 Qc7 8. Qxg7 Rg8 9. Qxh7 cxd4 10. Ne2

C20 King's pawn game	C20 "King's pawn game" 1. e4 e5 C20 "KP - Indian Opening" 1. e4 e5 2. d3 C20 "KP - Mengarini's Opening" 1. e4 e5 2. a3 C20 "KP - King's head Opening" 1. e4 e5 2. f3 C20 "KP - Patzer Opening" 1. e4 e5 2. Qh5 C20 "KP - Napoleon's Opening" 1. e4 e5 2. Qf3 C20 "KP - Lopez Opening" 1. e4 e5 2. c3 C20 "Alapin's Opening" 1. e4 e5 2. Ne2
C21 Center game Централен дебют, Северен Гамбит	C21 "Center game" 1. e4 e5 2. d4 exd4 C21 "Сenter game, Kieseritsky Variation" 1. e4 e5 2. d4 exd4 3. Nf3 c5 4. Bc4 b5 C21 "Halasz gambit" 1. e4 e5 2. d4 exd4 3. f4 C21 "Danish gambit" 1. e4 e5 2. d4 exd4 3. c3 C21 "Danish gambit - Collijn defense" 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 Qe7 C21 "Danish gambit - Schlechter defense" 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 d5 C21 "Danish gambit - Soerensen defense" 1. e4 e5 2. d4 exd4 3. c3 d5 C21 "Center game" 1. e4 e5 2. d4 exd4 3. Qxd4
C22 Center game	C22 "Center game" 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 C22 "Center game - Paulsen attack" 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 C22 "Center game - Charousek Variation" 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Bb4+ 5. c3 Be7 C22 "Center game - l'Hermet Variation" 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 f5 C22 "Center game - Berger Variation" 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Nf6 C22 "Center game" 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Nf6 5. Nc3 Bb4 6. Bd2 O-O 7. O-O-O Re8 8. Bc4 d6 9. Nh3 C22 "Center game - Hall Variation" 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qc4
C23 Bishop's Opening Дебют на офицера	C23 "Bishop's Opening" 1. e4 e5 2. Bc4 C23 "Bishop's Opening - Philidor counter-attack" 1. e4 e5 2. Bc4 c6 C23 "Bishop's Opening - Lisitsyn Variation" 1. e4 e5 2. Bc4 c6 3. d4 d5 4. exd5 cxd5 5. Bb5+ Bd7 6. Bxd7+ Nxd7 7. dxe5 Nxe5 8. Ne2 C23 "Bishop's Opening - Calabrese counter-gambit" 1. e4 e5 2. Bc4 f5 C23 "Bishop's Opening - Calabrese counter-gambit, Jaenisch Variation" 1. e4 e5 2. Bc4 f5 3. d3 C23 "Bishop's Opening - Classical Variation" 1. e4 e5 2. Bc4 Bc5 C23 "Bishop's Opening - Lopez gambit" 1. e4 e5 2. Bc4 Bc5 3. Qe2 Nc6 4. c3 Nf6 5. f4 C23 "Bishop's Opening - Philidor Variation" 1. e4 e5 2. Bc4 Bc5 3. c3 C23 "Bishop's Opening - Pratt Variation" 1. e4 e5 2. Bc4 Bc5 3. c3 Nf6 4. d4 exd4 5. e5 d5 6. exf6 dxc4 7. Qh5 O-O C23 "Bishop's Opening - Lewis counter-gambit" 1. e4 e5 2. Bc4 Bc5 3. c3 d5 C23 "Bishop's Opening - del Rio Variation" 1. e4 e5 2. Bc4 Bc5 3. c3 Qg5 C23 "Bishop's Opening - Lewis gambit" 1. e4 e5 2. Bc4 Bc5 3. d4 C23 "Bishop's Opening - Wing gambit" 1. e4 e5 2. Bc4 Bc5 3. b4 C23 "Bishop's Opening - MacDonnell double gambit" 1. e4 e5 2. Bc4 Bc5 3. b4 Bxb4 4. f4 C23 "Bishop's Opening - Four pawns' gambit" 1. e4 e5 2. Bc4 Bc5 3. b4 Bxb4 4. f4 exf4 5. Nf3 Be7 6. d4 Bh4+ 7. g3 fxg3 8. O-O gxh2+ 9. Kh1
C24 Bishop's Opening - Berlin defense	C24 "Bishop's Opening - Berlin defense" 1. e4 e5 2. Bc4 Nf6 C24 "Bishop's Opening - Greco gambit" 1. e4 e5 2. Bc4 Nf6 3. f4 C24 "Bishop's Opening - Ponziani gambit" 1. e4 e5 2. Bc4 Nf6 3. d4 C24 "Bishop's Opening - Urusov gambit" 1. e4 e5 2. Bc4 Nf6 3. d4 exd4 4. Nf3 C24 "Bishop's Opening - Urusov gambit, Panov Variation" 1. e4 e5 2. Bc4 Nf6 3. d4 exd4 4. Nf3 d5 5. exd5 Bb4+ 6. c3 Qe7+

C25 Vienna game	C25 "Vienna game" 1. e4 e5 2. Nc3 C25 "Vienna - Zhuravlev countergambit" 1. e4 e5 2. Nc3 Bb4 3. Qg4 Nf6 C25 "Vienna game, Max Lange defense" 1. e4 e5 2. Nc3 Nc6 C25 "Vienna - Paulsen Variation" 1. e4 e5 2. Nc3 Nc6 3. g3 C25 "Vienna - Fyfe gambit" 1. e4 e5 2. Nc3 Nc6 3. d4
C25 Vienna gambit	C25 "Vienna gambit" 1. e4 e5 2. Nc3 Nc6 3. f4 C25 "Vienna - Steinitz gambit" 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 C25 "Vienna - Steinitz gambit, Zukertort defense" 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 Qh4+ 5. Ke2 d5 C25 "Vienna - Steinitz gambit, Fraser-Minckwitz Variation" 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 Qh4+ 5. Ke2 b6 C25 "Vienna gambit" 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 C25 "Vienna - Hamppe-Allgaier gambit" 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. h4 g4 6. Ng5 C25 "Vienna - Hamppe-Allgaier gambit, Alapin Variation" 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. h4 g4 6. Ng5 d6 C25 "Vienna - Hamppe-Muzio gambit" 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. Bc4 g4 6. O-O C25 "Vienna - Hamppe-Muzio, Dubois Variation" 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. Bc4 g4 6. O-O gxf3 7. Qxf3 Ne5 8. Qxf4 Qf6 C25 "Vienna - Pierce gambit" 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. d4 C25 "Vienna - Pierce gambit, Rushmere attack" 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. d4 g4 6. Bc4 gxf3 7. O-O d5 8. exd5 Bg4 9. dxc6
C26 Vienna - Falkbeer Variation	C26 "Vienna - Falkbeer Variation" 1. e4 e5 2. Nc3 Nf6 C26 "Vienna - Mengarini Variation" 1. e4 e5 2. Nc3 Nf6 3. a3 C26 "Vienna - Paulsen-Mieses Variation" 1. e4 e5 2. Nc3 Nf6 3. g3 C26 "Vienna game" 1. e4 e5 2. Nc3 Nf6 3. Bc4
C27-С28 Vienna game	C27 "Vienna game" 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 C27 "Vienna - Frankenstein-Dracula Variation" 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Nc6 6. Nb5 g6 7. Qf3 f5 8. Qd5 Qe7 9. Nxc7+ Kd8 10. Nxa8 b6 C27 "Vienna - Adams' gambit" 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Nc6 6. d4 C27 "Vienna game" 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Be7 C27 "Vienna - Alekhine Variation" 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Be7 6. Nf3 Nc6 7. Nxe5 C27 "Boden-Kieseritsky gambit" 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Nf3 C27 "Boden-Kieseritsky gambit - Lichtenhein defense" 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Nf3 d5 C28 "Vienna game" 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nc6
C29 Vienna gambit	C29 "Vienna gambit" 1. e4 e5 2. Nc3 Nf6 3. f4 d5 C29 "Vienna gambit - Kaufmann Variation" 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Nf3 Bg4 6. Qe2 C29 "Vienna gambit - Breyer Variation" 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Nf3 Be7 C29 "Vienna gambit - Paulsen attack" 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Qf3 C29 "Vienna gambit - Bardeleben Variation" 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Qf3 f5 C29 "Vienna gambit - Heyde Variation" 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Qf3 f5 6. d4 C29 "Vienna gambit" 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. d3 C29 "Vienna gambit, Wurzburger trap" 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. d3 Qh4+ 6. g3 Nxg3 7. Nf3 Qh5 8. Nxd5 C29 "Vienna gambit, Steinitz Variation" 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. d3

C30 King's gambit	C30 "King's gambit" 1. e4 e5 2. f4 C30 "KGD - Keene's defense" 1. e4 e5 2. f4 Qh4+ 3. g3 Qe7 C30 "KGD - Mafia defense" 1. e4 e5 2. f4 c5 C30 "KGD - Norwalde Variation" 1. e4 e5 2. f4 Qf6 C30 "KGD - Norwalde Variation , Buecker gambit" 1. e4 e5 2. f4 Qf6 3. Nf3 Qxf4 4. Nc3 Bb4 5. Bc4
C30 KGD - Classical Variation	C30 "KGD - Classical Variation" 1. e4 e5 2. f4 Bc5 C30 "KGD - Classical, Svenonius Variation" 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. Nc3 Nf6 5. Bc4 Nc6 6. d3 Bg4 7. h3 Bxf3 8. Qxf3 exf4 C30 "KGD - Classical, Hanham Variation" 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. Nc3 Nd7 C30 "KGD - Classical, 4.c3" 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 C30 "KGD - Classical, Marshall attack" 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 Bg4 5. fxe5 dxe5 6. Qa4 C30 "KGD - Classical counter-gambit" 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 f5 C30 "KGD - Classical, Reti Variation" 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 f5 5. fxe5 dxe5 6. d4 exd4 7. Bc4 C30 "KGD - Classical, SOldatenkov Variation" 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. fxe5 C30 "KGD - Classical, Heath Variation" 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. b4 C30 "KGD - 2...Nf6" 1. e4 e5 2. f4 Nf6
C31 KGD - Falkbeer counter-gambit	C31 "KGD - Falkbeer counter-gambit" 1. e4 e5 2. f4 d5 C31 "KGD - Falkbeer, Tartakower Variation" 1. e4 e5 2. f4 d5 3. Nf3 C31 "KGD - Falkbeer, Milner-Barry Variation" 1. e4 e5 2. f4 d5 3. Nc3 C31 "KGD - Falkbeer counter-gambit" 1. e4 e5 2. f4 d5 3. exd5 C31 "KGD - Nimzovich counter-gambit" 1. e4 e5 2. f4 d5 3. exd5 c6 C31 "KGD - Falkbeer, 3...e4" 1. e4 e5 2. f4 d5 3. exd5 e4 C31 "KGD - Falkbeer, Rubinstein Variation" 1. e4 e5 2. f4 d5 3. exd5 e4 4. Nc3 Nf6 5. Qe2 C31 "KGD - Falkbeer, Nimzovich Variation" 1. e4 e5 2. f4 d5 3. exd5 e4 4. Bb5+ C31 "KGD - Falkbeer, 4.d3" 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 C31 "KGD - Falkbeer, Morphy gambit" 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. Nc3 Bb4 6. Bd2 e3
C32 KGD - Falkbeer, 5.de	C32 "KGD - Falkbeer, 5.de" 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 C32 "KGD - Falkbeer, Alapin Variation" 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Nf3 Bc5 7. Qe2 Bf2+ 8. Kd1 Qxd5+ 9. Nfd2 C32 "KGD - Falkbeer, Main line, 7...Bf5" 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Nf3 Bc5 7. Qe2 Bf5 C32 "KGD - Falkbeer, Tarrasch Variation" 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Nf3 Bc5 7. Qe2 Bf5 8. g4 O-O C32 "KGD - Falkbeer, Charousek gambit" 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Qe2 C32 "KGD - Falkbeer, Charousek Variation" 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Qe2 Qxd5 7. Nd2 f5 8. g4 C32 "KGD - Falkbeer, Keres Variation" 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. Nd2 C32 "KGD - Falkbeer, Reti Variation" 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. Qe2
C33 King's gambit accepted	C33 "King's gambit accepted" 1. e4 e5 2. f4 exf4 C33 "KGA - Tumbleweed gambit" 1. e4 e5 2. f4 exf4 3. Kf2 C33 "KGA - Orsini gambit" 1. e4 e5 2. f4 exf4 3. b3 C33 "KGA - Pawn's gambit (Stamma gambit)" 1. e4 e5 2. f4 exf4 3. h4 C33 "KGA - Schurig gambit" 1. e4 e5 2. f4 exf4 3. Bd3 C33 "KGA - Carrera (Basman) gambit" 1. e4 e5 2. f4 exf4 3. Qe2 C33 "KGA - Villemson (Steinitz) gambit" 1. e4 e5 2. f4 exf4 3. d4 C33 "KGA - Keres (Mason-Steinitz) gambit" 1. e4 e5 2. f4 exf4 3. Nc3 C33 "KGA - Breyer gambit" 1. e4 e5 2. f4 exf4 3. Qf3 C33 "KGA - Lesser Bishop's (Petroff-Jaenisch-Tartakower) gambit" 1. e4 e5 2. f4 exf4 3. Be2
C33 KGA - Bishop's gambit	C33 "KGA - Bishop's gambit" 1. e4 e5 2. f4 exf4 3. Bc4 C33 "KGA - Bishop's gambit, Chigorin's attack" 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 d5 5. Bxd5 g5 6. g3 C33 "KGA - Bishop's gambit, Greco Variation" 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 Bc5 C33 "KGA - Bishop's gambit, Classical defense" 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 C33 "KGA - Bishop's gambit, Grimm attack" 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 5. Nc3 Bg7 6. d4 d6 7. e5 C33 "KGA - Bishop's gambit, Classical defense" 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 5. Nc3 Bg7 6. d4 Ne7 C33 "KGA - Bishop's gambit, McDonnell attack" 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 5. Nc3 Bg7 6. d4 Ne7 7. g3 C33 "KGA - Bishop's gambit, McDonnell attack" 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 5. Nc3 Bg7 6. g3 C33 "KGA - Bishop's gambit, Fraser Variation" 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 5. Nc3 Bg7 6. g3 fxg3 7. Qf3 C33 "KGA - Bishop's gambit, Classical defense, Cozio attack" 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 5. Qf3 C33 "KGA - Bishop's gambit, Boden defense" 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 Nc6 C33 "KGA - Bishop's gambit, Bryan counter-gambit" 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 b5 C33 "KGA - Bishop's gambit, Bryan counter-gambit" 1. e4 e5 2. f4 exf4 3. Bc4 b5 C33 "KGA - Bishop's gambit, Steinitz defense" 1. e4 e5 2. f4 exf4 3. Bc4 Ne7 C33 "KGA - Bishop's gambit, Maurian defense" 1. e4 e5 2. f4 exf4 3. Bc4 Nc6 C33 "KGA - Bishop's gambit, Ruy Lopez defense" 1. e4 e5 2. f4 exf4 3. Bc4 c6 C33 "KGA - Bishop's gambit, Lopez-Gianutio counter-gambit" 1. e4 e5 2. f4 exf4 3. Bc4 f5 C33 "KGA - Lopez-Gianutio counter-gambit, Hein Variation" 1. e4 e5 2. f4 exf4 3. Bc4 f5 4. Qe2 Qh4+ 5. Kd1 fxe4 6. Nc3 Kd8 C33 "KGA - Bishop's gambit, Bledow Variation" 1. e4 e5 2. f4 exf4 3. Bc4 d5 C33 "KGA - Bishop's gambit, Gifford Variation" 1. e4 e5 2. f4 exf4 3. Bc4 d5 4. Bxd5 Qh4+ 5. Kf1 g5 6. g3 C33 "KGA - Bishop's gambit, Boren-Svenonius Variation" 1. e4 e5 2. f4 exf4 3. Bc4 d5 4. Bxd5 Qh4+ 5. Kf1 Bd6 C33 "KGA - Bishop's gambit, Anderssen Variation" 1. e4 e5 2. f4 exf4 3. Bc4 d5 4. Bxd5 c6 C33 "KGA - Bishop's gambit, Morphy Variation" 1. e4 e5 2. f4 exf4 3. Bc4 d5 4. Bxd5 Nf6 C33 "KGA - Bishop's gambit, Cozio (Morphy) defense" 1. e4 e5 2. f4 exf4 3. Bc4 Nf6 C33 "KGA - Bishop's gambit, Bogolyubov Variation" 1. e4 e5 2. f4 exf4 3. Bc4 Nf6 4. Nc3 C33 "KGA - Bishop's gambit, Paulsen attack" 1. e4 e5 2. f4 exf4 3. Bc4 Nf6 4. Nc3 Bb4 5. e5 C33 "KGA - Bishop's gambit, Jaenisch Variation" 1. e4 e5 2. f4 exf4 3. Bc4 Nf6 4. Nc3 c6
C34 King's knight's gambit	C34 "King's knight's gambit" 1. e4 e5 2. f4 exf4 3. Nf3 C34 "KGA - Bonsch-Osmolovsky Variation" 1. e4 e5 2. f4 exf4 3. Nf3 Ne7 C34 "KGA - Gianutio counter-gambit" 1. e4 e5 2. f4 exf4 3. Nf3 f5 C34 "KGA - Fischer defense" 1. e4 e5 2. f4 exf4 3. Nf3 d6 C34 "KGA - Becker defense" 1. e4 e5 2. f4 exf4 3. Nf3 h6 C34 "KGA - Schallop defense" 1. e4 e5 2. f4 exf4 3. Nf3 Nf6
C35 KGA - Cunningham defense	C35 "KGA - Cunningham defense" 1. e4 e5 2. f4 exf4 3. Nf3 Be7 C35 "KGA - Cunningham, Bertin gambit" 1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. Bc4 Bh4+ 5. g3 C35 "KGA - Cunningham, Three pawns gambit" 1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. Bc4 Bh4+ 5. g3 fxg3 6. O-O gxh2+ 7. Kh1 C35 "KGA - Cunningham, Euwe defense" 1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. Bc4 Nf6
C36 KGA - Abbazia defense (Classical defense, Modern defense)	C36 "KGA - Abbazia defense (Classical defense, Modern defense)" 1. e4 e5 2. f4 exf4 3. Nf3 d5 C36 "KGA - Abbazia defense, Modern Variation" 1. e4 e5 2. f4 exf4 3. Nf3 d5 4. exd5 Nf6 C36 "KGA - Abbazia defense, Botvinnik Variation" 1. e4 e5 2. f4 exf4 3. Nf3 d5 4. exd5 Nf6 5. Bb5+ c6 6. dxc6 bxc6 7. Bc4 Nd5
C37 KGA - Quaade gambit	C37 "KGA - Quaade gambit" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Nc3 C37 "KGA - Rosentreter gambit" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. d4 C37 "KGA - Soerensen gambit" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. d4 g4 5. Ne5 C37 "KGA - King's knight's gambit" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 C37 "KGA - Blachly gambit" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Nc6 C37 "KGA - Lolli gambit (wild Muzio gambit)" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Bxf7+ C37 "KGA - Lolli gambit, Young Variation" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Bxf7+ Kxf7 6. O-O gxf3 7. Qxf3 Qf6 8. d4 Qxd4+ 9. Be3 Qf6 10. Nc3 C37 "KGA - Ghulam Kassim gambit" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. d4 C37 "KGA - MacDonnell gambit" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Nc3 C37 "KGA - Salvio gambit" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 C37 "KGA - Silberschmidt gambit" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 Nh6 7. d4 f3 C37 "KGA - Salvio gambit, Anderssen counter-attack4 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 Nh6 7. d4 d6 C37 "KGA - Cochrane gambit" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 f3 C37 "KGA - Herzfeld gambit" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 Nc6
C37 KGA - Muzio gambit	C37 "KGA - Muzio gambit" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O C37 "KGA - Muzio gambit, Paulsen Variation" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qf6 7. e5 Qxe5 8. d3 Bh6 9. Nc3 Ne7 10. Bd2 Nbc6 11. Rae1 C37 "KGA - double Muzio gambit4 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qf6 7. e5 Qxe5 8. Bxf7+ C37 "KGA - Muzio gambit, From defense" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qe7 C37 "KGA - Muzio gambit, Holloway defense" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Nc6 C37 "KGA - Muzio gambit, Kling and Horwitz counter-attack" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O Qe7 C37 "KGA - Muzio gambit, Brentano defense" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O d5
C38 King's knight's gambit	C38 "King's knight's gambit" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 C38 "KGA - Hanstein gambit" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 5. O-O C38 "KGA - Philidor gambit" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 5. h4 C38 "KGA - Greco gambit" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 5. h4 h6 6. d4 d6 7. Nc3 c6 8. hxg5 hxg5 9. Rxh8 Bxh8 10. Ne5 C38 "KGA - Philidor gambit, Schultz Variation" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 5. h4 h6 6. d4 d6 7. Qd3
C39 King's knight's gambit	C39 "King's knight's gambit" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 C39 "KGA - Allgaier gambit" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 C39 "KGA - Allgaier, Horny defense" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. Qxg4 Nf6 8. Qxf4 Bd6 C39 "KGA - Allgaier, ThorOld Variation" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. d4 C39 "KGA - Allgaier, Cook Variation" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. d4 d5 8. Bxf4 dxe4 9. Bc4+ Kg7 10. Be5+ C39 "KGA - Allgaier, Blackburne gambit" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. Nc3 C39 "KGA - Allgaier, Walker attack" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. Bc4+ C39 "KGA - Allgaier, Urusov attack" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. Bc4+ d5 8. Bxd5+ Kg7 9. d4 C39 "KGA - Allgaier, Schlechter defense" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 Nf6
C39 KGA - Kieseritsky, Paulsen defense	C39 "KGA - Kieseritsky, Paulsen defense" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Bg7 C39 "KGA - Kieseritsky, long whip (Stockwhip, Classical) defense" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 h5 C39 "KGA - Kieseritsky, long whip defense, Jaenisch Variation" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 h5 6. Bc4 Rh7 7. d4 Bh6 8. Nc3 C39 "KGA - Kieseritsky, Brentano (Campbell) defense" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d5 C39 "KGA - Kieseritsky, Brentano defense, Kaplanek Variation" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d5 6. d4 Nf6 7. exd5 Qxd5 8. Nc3 Bb4 9. Kf2 C39 "KGA - Kieseritsky, Brentano defense" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d5 6. d4 Nf6 7. Bxf4 C39 "KGA - Kieseritsky, Brentano defense, Caro Variation" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d5 6. d4 Nf6 7. Bxf4 Nxe4 8. Nd2 C39 "KGA - Kieseritsky, Salvio (Rosenthal) defense" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Qe7 C39 "KGA - Kieseritsky, Salvio defense, Cozio Variation" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Qe7 6. d4 f5 7. Bc4 C39 "KGA - Kieseritsky, Polerio defense" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Be7 C39 "KGA - Kieseritsky, Neumann defense" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nc6 C39 "KGA - Kieseritsky, Kolisch defense" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 d6 C39 "KGA - Kieseritsky, Berlin defense" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 C39 "KGA - Kieseritsky, Berlin defense, Riviere Variation" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Nxg4 d5 C39 "KGA - Kieseritsky, Berlin defense, 6.Bc4" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Bc4 C39 "KGA - Kieseritsky, Rice gambit" 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Bc4 d5 7. exd5 Bd6 8. O-O

C42 Petrov's defense	C42 "Petrov's defense" 1. e4 e5 2. Nf3 Nf6 C42 "Petrov - French attack" 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d3 C42 "Petrov - Kaufmann attack" 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. c4 C42 "Petrov - Nimzovich attack" 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 C42 "Petrov - Cozio (Lasker) attack" 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2
C42 Petrov - Classical attack	C42 "Petrov - Classical attack" 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 C42 "Petrov - Classical attack, Chigorin Variation" 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. Re1 C42 "Petrov - Classical attack, Berger Variation" 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. Re1 Bg4 9. c3 f5 10. Nbd2 C42 "Petrov - "Classical attack, Krause Variation" 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. Re1 Bg4 9. c3 f5 10. c4 C42 "Petrov - Classical attack, Maroczy Variation" 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. Re1 Bg4 9. c3 f5 10. c4 Bh4 C42 "Petrov - Classical attack, Jaenisch Variation" 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. c4 C42 "Petrov - Classical attack, Mason Variation" 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O C42 "Petrov - Classical attack, Marshall Variation" 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 C42 "Petrov - Classical attack, Tarrasch Variation" 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 Bg4 C42 "Petrov - Classical attack, Marshall trap" 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 Bg4 9. cxd5 f5 10. Re1 Bxh2+ C42 "Petrov - Classical attack, close Variation" 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 Nf6
C42 Petrov - Cochrane gambit	C42 "Petrov - Cochrane gambit" 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7 C42 "Petrov - Paulsen attack" 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nc4 C42 "Petrov - Damiano Variation" 1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nxe4 C42 - Petrov Three knights game" 1. e4 e5 2. Nf3 Nf6 3. Nc3 C42 "Petrov - Italian Variation"