Chessのオープニング。気が向いた時に追加。

A. Double King Pawn Openings 1.e4 e5
2.d4 exd4
   3.Qxd4    [Center Game]
      3...Nc6  4.Qa4   (Hall Variation)
               4.Qe3   (Paulsen Attack)
   3.Be4     [Center Gambit]
   3.Nf3     [Center Gambit]
   3.c3 dxc3    [Danish Gambit]
      4.Bc4 Bb4    (Danish Declined)
         4...cxb2  (Danish Accepted)
      4.Nxc3    (Half Danish)

2.Bc4    [Bishop's Opening]
   2...Bc5    (Classical Variation)
   2...Nf6    (Berlin Defence)
      3.d4 exd4  4.Nf3    (Urusov Gambit)

2.Nc3    [Vienna Game]
   2...Bc5    (Anderssen Variation)
   2...Nc6 3.f4    (Vienna Gambit)
           3.Bc4 Bc5    (Bishop Variation)
   2...Nf6    (Falkbeer Variation)
      3.Bc4 Nxe4    (Frankenstein-Dracula Variation)
      3.f4 d5  4.fxe5 Nxe5  5.d3    (Oxford Variation)

2.Ne2    [Alapin Opening]

2.f4
   2...exf4    [King's Gambit Accepted]
      3.b3    (Orsini Gambit)
      3.Bc4   (Bishop's Gambit)
      3.Nf3   (King's Knight Gambit)
         3...Be7    (Cunningham Defence)
         3...d5     (Abbazia Defence)
         3...Nf6    (Schallopp Defence)
         3...g5     (Classical Defence)
            4.Bc4 g4  5.d4    (Ghulam-Kassim Gambit)
                      5.Nc3   (McDonnell Gambit)
            4.Nc3    (Quaade Gambit)
            4.h4 g4  5.Ne5    (Kieseritzky Gambit)

   2...Nf6    [King's Gambit Declined] (Bernstein Defence)
   2...d6     [King's Gambit Declined] (Nimzovich Defence)
   2...Bc5    [King's Gambit Declined] (Classical Defence)
   2...d5     [Falkbeer Counter-Gambit]
      3.Nf3    (Anti-Falkbeer)
      3.Nc3    (Hoffmann Variation)
      3.exd5 Qxd5    (Greco Variation)
         3...e4  4.Nc3    (London Variation)
                 4.Bb5+   (Nimzovich Variation)

2.Nf3
   2...f6    [Damiano Defence]
   2...f5    [Latvian Counter Gambit]  
   2...d5    [Queen's Pawn Counter Gambit]
   2...d6    [Philidor Defence]
   2...Nf6   [Petroff Defence]
        3.Bc4    (Boden-Kieseritzky Gambit)
        3.d4     (Steinitz Variation)

   2...Nc6 
        3.d4 exd4  4.c3    (Goring Gambit)
                   4.Bc4   (Scotch Gambit)
                   4.Nxd4  (Scotch Game)
                        4...Qh4    (Pulling Counter-Attack)
                        4...Bc5    (Classical Variation)
                        4...Nf6    (Shmidt Variation)
                           5.Nc3     (Scotch Four Knights)

        3.c3    [Ponziani Opening]
        3.Nc3   [Three Knights Game]
           3...Nf6    [Four Knights Game]
              4.Bc4 Bb4    (Vienna Four Knights)
              4.Bb5        (Spanish Four Knights Game)
        3.Bc4 
           3...Be7    [Hungarian Defence]
           3...d6     [Paris Defence]
           3...Bc5    [Guioco Piano]
              4.Nc3 Nf6    (Italian Four Knights Game)
              4.c3         (Greco Variation)
              4.Bxf7+      (Jerome Gambit)
              4.b4    [Evans Gambit]
                 4...Bxb4    (Accepted)
                 4...Bb6     (Declined)
           3....Nf6    [Two Knights Defence]
                      4.d4 exd4  5.0-0 Bc5  6.e5    (Max Lange Attack)
                      4.Ng5 Bc5    (Wilkes Barre Variation)

        3.Bb5    [Ruy Lopez]
           3...d6    (Steinitz Defence)
           3...Nf6   (Berlin Defence)
           3...Bc5   (Cordel Defence)
           3...f5    (Schliemann Defence)
           3...Nd4   (Bird Defence)
           3...Nge7  (Cozio Defence)

           3...a6    [Ruy Popez with 3...a6]
              4.Ba4 Bb4    (Alapin Defence Deferred)
                 4...b5  5.Bb3 Bc5    (Graz Variation)
                            5...Bb7 (Tchigorin Variation)
                 4...d6    (Steinitz Defence Deferred)
                 4...f5    (Schliemann Defence Deferred)
                 4...Nf6  5.Qe2     (Wormald Attack)
                          5.Nc3     (Tarrasch Variation)
                          5.0-0 Be5    (Moller Defence)
                             5...Nxe4    (Open Defence)
                             5...d6      (Russian Defence)
                             5...Be7  6.Qe2  (Worrell Attack)
              4.Bxc6    (Exchange Variation)


B. Semi-Open Openings 1.e4
1...c5    [Sicilian Defence]
   2.Nf3
      2...d6  3.d4 cxd4  4.Nxd4 
         4...g6  5.Nc3 Bg7  6.Be3 Nf6
                          7.Be2 d5
                          7.f3 0-0  8.Qd2 d5
                 5.c4    (Maroczy Bind)
         4...Nf6  5.Nc3
            5...a6    [Najdorf Variation]
               6.Bg5 e6  7.f4 
                            7...Qb6    (Poisoned Pawn Variation)
                               8.Nb3
                               8.Qd2 Qxb2
                            7...Be7  8.Qf3 Qc7  9.0-0-0 Nbd7    (Old Main line)
                                                   10.g4
                            7...b5    (Palugaevsky Variation)
                            7...Nbd7
                            7...Qc7
               6.Be2
               6.Bc4
               6.Be3
               6.g3
               6.f4

            5...g6    [Dragon Variation]
               6.Be3  Bg7  7.f3 Nc6  8.Qd2 0-0    (Yugoslav Attack)
                  9.Bc4 Bd7  10.0-0-0 Rc8  11.Bb3 Ne5  12.h4 
                                                          12...h5 (Soltis line)
                                                             13.Bg5
                                                          12...Nc4
                  9.0-0-0 d5
                  9.g4
               6.Be2 Bg7  7.0-0 0-0  8.Be3 Nc6    (Classical Variation)
               6.f4    (Levenfish Variation)
                  6...Nc6
               6.g3

      2...e6  3.d4 cxd4  4.Nxd4
         4...Nf6  5.Nc3
            5...d6    [Scheveningen Variation]
               6.Be2 Be7  7.0-0 Nc6  8.f4 0-0  9.Be3 a6    (Main line)
                                                  10.a4
                                                  10.Qe1
               6.g4    (Keres Attack)
                  6...h6
                  6...a6
                  6...Be7
                  6...Nc6
               6.Be3
               6.f4
               6.g3
            5...Nc6    (Four Knights' Variation)
            5...Bb4    (Sicilian Counter Attack)
         4...Nc6    [Taimanov Variation]
            5.Nc3 a6  6.g3
                      6.Be2 d6
                      6.Be3
                      6.Nxc6
            5.Nb5 d6  6.c4
         4...a6    [Paulsen (or Kan) Variation]
            5.Nd3
            5.c4
            5.Nc3 Nc6
            5.Nd2
            5.g3

      2...Nc6  3.d4 cxd4  4.Nxd4
         4...g6    [Accelerated Dragon] 
         4...Nf6  5.Nc3
            5... d6    [Classical Variation]
               6.Bg5    (Richter-Rauzer Attack)
                  6...e6  7.Qd2 
                             7...Be7  8.0-0-0 0-0
                                         9.f4
                                         9.Nb3
                             7...a6  8.0-0-0 
                                        8...Bd7  9.f4 b5  10.Bxf6 gxf6
                                        8...h6  9.Be3 Be7  10.f4
               6.Be2 e5!    (Boleslavsky Variation)
               6.f3
               6.Bc4    (Sozin Variation)
                  6...e6  7.Be3    (Velimirovic Attack)
                  6...Qb6
            5...e5    [Sveshnikov (or Pelikan) Variation]
               6.Ndb5 d6  
                  7.Bg5 a6  8.Na3 
                               8...b5  
                                  9.Bxf6 gxf6  10.Nd5
                                  9.Nd5
                               8...Be6
                  7.Nd5
               6.Nf3
         4...e5  5.Nb5
                    5...d6    [Kalashnikov Variation]
                    5...a6    [Lowenthal Variation]
         4...Qb6

   2.Nc3 Nc6  3.g3 g6  4.Bg2 Bg7  5.d3 d6    [Closed Sicilian](Main line)
   2.d4 cxd4  3.c3    (Morra Gambit)
   2.c3
      2...Nf6
      2...d5
   2.Bb5
      2...Nc6
      2...d6  3.Bb5+
   2.Nc3  3.f4
   2.f4 d5

1...Nc6    [Nimzovich Defence]

1...f5     [Dutch Defence]

1...Nf6    [Alekhine Defence]
   2.e5 Nd5  3.d4 d6 
                4.Nf3        [Modern Variation]
                4.c4 Nb6
                   5.exd6    [Exchange Variation]
                   5.f4      [Four Pawns Attack]
   2.Bc4
   2.d3
   2.Nc3

1...c6     [Caro-Kann Defence]
   2.d4 d5  
      3.e6        [Advance Variation]
      3.exd5 cxd5
         4.Bd3    [Exchange Variation]
         4.c4     [Panov-Botvinnik Attack]
      3.Nc3 dxe4  4.Nxe4    [Main Line]
      3.f3    [Fantasy Variation]
   2.Nc3 d5  3.Nf3 Bg4    [Two Knights' Variation]
   2.d3
   2.c4

1...g6     [Modern Defence]
   2.d4 Bg7    [Robatsch Defence]

1...d6  2.d4 Nf6    [Pirc Defence]
           3.Nc3 g6  4.f4     [Austrian Attack]
                     4.Nf3    [Two Knights System]
           3.e5
           3.Qf3

1...e6     [French Defence]
   2.d4 d5 3.e5    [Advance Variation]
              3...c5
           3.exd5 exd5    [Exchange Variation]
           3.Nc3 
              3...Nf6  
                 4.Bg5 
                    4...Be7  5.e5 Nfd7  
                                6.Bxe7 Qxe7    [Classical Variation]
                                6.h4    (Alekhine-Chatard Attack)
                    4...Bb4     [MacCutcheon Variation]
                    4...dxe4    [Burn Variation]
                 4.e5    [Steinitz Variation]
              3...dxe4    [Rubinstein Variation]
              3...Bb4     [Winawer Variation]
           3.Nd2    [Tarrasch Variation]
              3...Nf6  4.e5 Nfd7  5.Bd3 c5  6.c3    (Main line)
              3...Nc6    (Guimard)
           3.f3
           3.e5
   2.Qe2    (Chigorin)
   2.b3
   2.d3
   2.f4
   2.Nf3

1...d5    [Center Counter (or Scandinavian) Defence]
   2.exd5 Nf3  3.d4 Bg4   [Portuguese Variation] 
      2...Qxd5
         3.d4
         3.Nc3
   2.Nc3

C. Double Queen Pawn Openings 1.d4 d5  
2.c4 
   2...e6      [Queen's Gambit Declined]
      3.Nc3 c5    [Tarrasch Defence]
   2...dxc4    [Queen's Gambit Accepted]
   2...c6      [Slav and Semi-Slav Defence]
   2...Nc6     [Chigorin's Defence]

D. Indian Openings 1.d4 Nf6  2.c4
2...e5    [Budapest Defence]
2...e6  3.g3    [Catalan Opening]
        3.Nc3 Bb4    [Nimzo-Indian Defence]
        3.Nf3 b6     [Queen's Indian Defence]
           3...Bb4+    [Bogo-Indian Defence]
2...g6    [King's Indian Defence]
   3.Nc3 d5    [Grunfeld Defence]
2...d6    [Old Indian Defence]
2...c5  3.d5 e6    [Benoni Defence]
             3...b5    [Benko Gambit]

E. Flank Openings
1.c4    [English Opening]
1.Nf3 d5  2.c4    [Reti Opening]
1.Nf3  2.g3  3.Bg2    [King's Indian Attack]
1.b3    [Larsen's Opening]
1.f4    [Bird's Opening]