A00: Irregular Openings

• Amar Opening
  1. Nh3
• Amar Opening: Paris Gambit
  1. Nh3 d5 2. g3 e5 3. f4
• Amar Opening: Paris Gambit, Gent Gambit
  1. Nh3 d5 2. g3 e5 3. f4 Bxh3 4. Bxh3 exf4 5. O-O fxg3 6. hxg3
• Amsterdam Attack
  1. e3 e5 2. c4 d6 3. Nc3 Nc6 4. b3 Nf6
• Anderssen's Opening
  1. a3
• Anderssen's Opening: Polish Gambit
  1. a3 a5 2. b4
• Barnes Opening
  1. f3
• Barnes Opening: Fool's Mate
  1. f3 e5 2. g4 Qh4#
• Barnes Opening: Gedult Gambit
  1. f3 d5 2. e4 g6 3. d4 dxe4 4. c3
• Barnes Opening: Gedult Gambit
  1. f3 f5 2. e4 fxe4 3. Nc3
• Barnes Opening: Hammerschlag
  1. f3 e5 2. Kf2
• Clemenz Opening
  1. h3
• Clemenz Opening: Spike Lee Gambit
  1. h3 h5 2. g4
• Creepy Crawly Formation: Classical Defense
  1. h3 d5 2. a3 e5
• Formation: Hippopotamus Attack
  1. a3 e5 2. b3 d5 3. c3 Nf6 4. d3 Nc6 5. e3 Bd6 6. f3 O-O 7. g3
• Formation: Shy Attack
  1. a3 e5 2. g3 d5 3. Bg2 Nf6 4. d3 Nc6 5. Nd2 Bd6 6. e3 O-O 7. h3
• Global Opening
  1. h3 e5 2. a3
• Grob Opening
  1. g4
• Grob Opening: Alessi Gambit
  1. g4 f5
• Grob Opening: Double Grob
  1. g4 g5
• Grob Opening: Double Grob, Coca-Cola Gambit
  1. g4 g5 2. f4
• Grob Opening: Grob Gambit
  1. g4 d5 2. Bg2
• Grob Opening: Grob Gambit Declined
  1. g4 d5 2. Bg2 c6
• Grob Opening: Grob Gambit, Basman Gambit
  1. g4 d5 2. Bg2 h5 3. gxh5
• Grob Opening: Grob Gambit, Fritz Gambit
  1. g4 d5 2. Bg2 Bxg4 3. c4
• Grob Opening: Grob Gambit, Fritz Gambit, Romford Countergambit
  1. g4 d5 2. Bg2 Bxg4 3. c4 d4 4. Bxb7 Nd7 5. Bxa8 Qxa8
• Grob Opening: Grob Gambit, Keres Gambit
  1. g4 d5 2. Bg2 e5 3. d4 exd4 4. c3
• Grob Opening: Grob Gambit, Richter-Grob Gambit
  1. g4 d5 2. Bg2 c6 3. c4 dxc4 4. b3
• Grob Opening: Keene Defense
  1. g4 d5 2. h3 e5 3. Bg2 c6
• Grob Opening: Keene Defense, Main Line
  1. g4 d5 2. h3 e5 3. Bg2 c6 4. d4 e4 5. c4 Bd6 6. Nc3 Ne7
• Grob Opening: London Defense
  1. g4 e5 2. h3 Nc6
• Grob Opening: Romford Countergambit
  1. g4 d5 2. Bg2 Bxg4 3. c4 d4
• Grob Opening: Spike Attack
  1. g4 d5 2. Bg2 c6 3. g5
• Grob Opening: Spike, Hurst Attack
  1. g4 e5 2. Bg2 d5 3. c4
• Grob Opening: Zilbermints Gambit
  1. g4 d5 2. e4 dxe4 3. Nc3
• Grob Opening: Zilbermints Gambit, Schiller Defense
  1. g4 d5 2. e4 dxe4 3. Nc3 h5
• Grob Opening: Zilbermints Gambit, Zilbermints-Hartlaub Gambit
  1. g4 d5 2. e4 dxe4 3. Nc3 e5 4. d3
• Hungarian Opening
  1. g3
• Hungarian Opening: Asten Gambit
  1. g3 Nc6 2. Nc3 d5 3. d4 e5 4. dxe5 d4 5. Ne4 f5
• Hungarian Opening: Burk Gambit
  1. g3 e5 2. a3 d5 3. Nf3 e4 4. Nh4 Be7 5. d3
• Hungarian Opening: Bücker Gambit
  1. g3 d5 2. Bg2 e5 3. b4
• Hungarian Opening: Catalan Formation
  1. g3 d5 2. Bg2 e6
• Hungarian Opening: Dutch Defense
  1. g3 f5
• Hungarian Opening: Indian Defense
  1. g3 Nf6
• Hungarian Opening: Myers Defense
  1. g3 g5
• Hungarian Opening: Pachman Gambit
  1. g3 f5 2. e4 fxe4 3. Qh5+ g6
• Hungarian Opening: Paris Gambit
  1. g3 e5 2. Nh3 d5 3. f4 Bxh3 4. Bxh3 exf4 5. O-O
• Hungarian Opening: Reversed Alekhine
  1. g3 e5 2. Nf3
• Hungarian Opening: Reversed Brooklyn Defense, Brooklyn Benko Gambit
  1. g3 e5 2. Nf3 e4 3. Ng1 Nf6 4. b4
• Hungarian Opening: Reversed Modern Defense
  1. g3 d5 2. Bg2 c5
• Hungarian Opening: Reversed Norwegian Defense
  1. g3 e5 2. Nf3 e4 3. Nh4
• Hungarian Opening: Sicilian Invitation
  1. g3 c5
• Hungarian Opening: Slav Formation
  1. g3 d5 2. Bg2 c6
• Hungarian Opening: Symmetrical Variation
  1. g3 g6
• Hungarian Opening: Van Kuijk Gambit
  1. g3 h5 2. Nf3 h4
• Hungarian Opening: Winterberg Gambit
  1. g3 d5 2. Bg2 e5 3. c4 dxc4 4. b3
• Kádas Opening
  1. h4
• Kádas Opening: Beginner's Trap
  1. h4 d5 2. Rh3
• Kádas Opening: Koola-Koola Variation
  1. h4 a5
• Kádas Opening: Kádas Gambit
  1. h4 c5 2. b4
• Kádas Opening: Kádas Gambit
  1. h4 d5 2. d4 c5 3. Nf3 cxd4 4. c3
• Kádas Opening: Kádas Gambit
  1. h4 e5 2. d4 exd4 3. c3
• Kádas Opening: Myers Variation
  1. h4 d5 2. d4 c5 3. e4
• Kádas Opening: Schneider Gambit
  1. h4 g5
• Kádas Opening: Steinbok Gambit
  1. h4 f5 2. e4 fxe4 3. d3
• Lasker Simul Special
  1. g3 h5
• Mieses Opening
  1. d3
• Mieses Opening: Myers Spike Attack
  1. d3 g6 2. g4
• Mieses Opening: Reversed Rat
  1. d3 e5
• Mieses Opening: Venezolana Variation
  1. d3 c5 2. Nc3 Nc6 3. g3
• Polish Opening
  1. b4
• Polish Opening: Baltic Defense
  1. b4 d5 2. Bb2 Bf5
• Polish Opening: Birmingham Gambit
  1. b4 c5
• Polish Opening: Bugayev Advance Variation
  1. b4 e5 2. Bb2 f6 3. b5
• Polish Opening: Bugayev Attack
  1. b4 e5 2. a3
• Polish Opening: Czech Defense
  1. b4 e5 2. Bb2 d6
• Polish Opening: Dutch Defense
  1. b4 f5
• Polish Opening: German Defense
  1. b4 d5 2. Bb2 Qd6
• Polish Opening: Grigorian Variation
  1. b4 Nc6
• Polish Opening: Karniewski Variation
  1. b4 Nh6
• Polish Opening: King's Indian Variation
  1. b4 Nf6 2. Bb2 g6
• Polish Opening: King's Indian Variation, Schiffler Attack
  1. b4 Nf6 2. Bb2 g6 3. e4
• Polish Opening: King's Indian Variation, Sokolsky Attack
  1. b4 Nf6 2. Bb2 g6 3. c4 Bg7 4. e3 d6 5. Nf3 O-O 6. d4
• Polish Opening: Myers Variation
  1. b4 d5 2. Bb2 c6 3. a4
• Polish Opening: Outflank Variation
  1. b4 c6
• Polish Opening: Queen's Indian Variation
  1. b4 e6 2. Bb2 Nf6 3. b5 b6
• Polish Opening: Queenside Defense
  1. b4 e6 2. Bb2 Nf6 3. b5 a6
• Polish Opening: Rooks Swap Line
  1. b4 e6 2. Bb2 Nf6 3. b5 a6 4. a4 axb5 5. axb5 Rxa1 6. Bxa1
• Polish Opening: Schiffler-Sokolsky Variation
  1. b4 e6 2. Bb2 Nf6 3. b5 d5 4. e3
• Polish Opening: Schuehler Gambit
  1. b4 c6 2. Bb2 a5 3. b5 cxb5 4. e4
• Polish Opening: Symmetrical Variation
  1. b4 b5
• Polish Opening: Tartakower Gambit
  1. b4 e5 2. Bb2 f6 3. e4
• Polish Opening: Wolferts Gambit
  1. b4 e5 2. Bb2 c5
• Saragossa Opening
  1. c3
• Sodium Attack
  1. Na3
• Sodium Attack: Celadon Variation
  1. Na3 e5 2. d3 Bxa3 3. bxa3 d5 4. e3 c5 5. Rb1
• Sodium Attack: Chenoboskion Variation
  1. Na3 g6 2. g4
• Sodium Attack: Durkin Gambit
  1. Na3 e5 2. Nc4 Nc6 3. e4 f5
• Valencia Opening
  1. d3 e5 2. Nd2
• Van Geet Opening
  1. Nc3
• Van Geet Opening: Battambang Variation
  1. a3 e5 2. Nc3
• Van Geet Opening: Billockus-Johansen Gambit
  1. Nc3 e5 2. Nf3 Bc5
• Van Geet Opening: Damhaug Gambit
  1. Nc3 d5 2. f4 e5
• Van Geet Opening: Dougherty Gambit
  1. Nc3 d5 2. e4 dxe4 3. f3
• Van Geet Opening: Dunst-Perrenet Gambit
  1. Nc3 d5 2. e4 dxe4 3. d3
• Van Geet Opening: Düsseldorf Gambit
  1. Nc3 c5 2. b4
• Van Geet Opening: Gladbacher Gambit
  1. Nc3 e5 2. b3 d5 3. e4 dxe4 4. d3
• Van Geet Opening: Hector Gambit
  1. Nc3 d5 2. e4 dxe4 3. Bc4
• Van Geet Opening: Hergert Gambit
  1. Nc3 d6 2. f4 e5 3. fxe5 Nc6
• Van Geet Opening: Hulsemann Gambit
  1. Nc3 e5 2. e3 d5 3. Qh5 Be6
• Van Geet Opening: Jendrossek Gambit
  1. Nc3 d5 2. f4 d4 3. Ne4 f5 4. Nf2 Nf6 5. Nf3 c5 6. b4
• Van Geet Opening: Kluever Gambit
  1. Nc3 f5 2. e4 fxe4 3. d3
• Van Geet Opening: Laroche Gambit
  1. Nc3 b5
• Van Geet Opening: Liebig Gambit
  1. Nc3 e5 2. e3 d5 3. Qh5 Nf6
• Van Geet Opening: Melleby Gambit
  1. Nc3 d5 2. f4 d4 3. Ne4 c5
• Van Geet Opening: Myers Attack
  1. Nc3 g6 2. h4
• Van Geet Opening: Napoleon Attack
  1. Nc3 e5 2. Nf3 Nc6 3. d4
• Van Geet Opening: Novosibirsk Variation
  1. Nc3 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qh4
• Van Geet Opening: Nowokunski Gambit
  1. Nc3 e5 2. f4 exf4 3. e4
• Van Geet Opening: Pfeiffer Gambit
  1. Nc3 d5 2. f4 d4 3. Ne4 e5
• Van Geet Opening: Pfeiffer Gambit, Sleipnir Countergambit
  1. Nc3 d5 2. f4 d4 3. Ne4 e5 4. Nf3
• Van Geet Opening: Reversed Nimzowitsch
  1. Nc3 e5
• Van Geet Opening: Reversed Scandinavian
  1. Nc3 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qa4
• Van Geet Opening: Sicilian Two Knights
  1. Nc3 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4
• Van Geet Opening: Sleipnir Gambit
  1. Nc3 d5 2. e3 e5 3. d4 Bb4
• Van Geet Opening: Twyble Attack
  1. Nc3 c5 2. Rb1
• Van Geet Opening: Tübingen Gambit
  1. Nc3 Nf6 2. g4
• Van Geet Opening: Venezolana Variation
  1. Nc3 d5 2. d3 Nf6 3. g3
• Van Geet Opening: Warsteiner Gambit
  1. Nc3 d5 2. f4 g5
• Van't Kruijs Opening
  1. e3
• Van't Kruijs Opening: Bouncing Bishop Variation
  1. e3 e5 2. Bc4 b5 3. Bb3
• Van't Kruijs Opening: Keoni-Hiva Gambit, Akahi Variation
  1. e3 e5 2. Nc3 Nf6 3. f4 exf4 4. Nf3
• Van't Kruijs Opening: Keoni-Hiva Gambit, Alua Variation
  1. e3 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3
• Van't Kruijs Opening: Keoni-Hiva Gambit, Ekolu Variation
  1. e3 e5 2. Nc3 d5 3. f4 exf4 4. Nf3
• Ware Opening
  1. a4
• Ware Opening: Cologne Gambit
  1. a4 b6 2. d4 d5 3. Nc3 Nd7
• Ware Opening: Crab Variation
  1. a4 e5 2. h4
• Ware Opening: Meadow Hay Trap
  1. a4 e5 2. Ra3
• Ware Opening: Symmetric Variation
  1. a4 a5
• Ware Opening: Ware Gambit
  1. a4 e5 2. a5 d5 3. e3 f5 4. a6
• Ware Opening: Wing Gambit
  1. a4 b5 2. axb5 Bb7