The65thSquare Chess Openings and Variations
Classic Openings - P

Opening Name Variation Date Added
Paris Opening 1. Nh3 30 September 2002
Paris Opening Amar Gambit 1. Nh3 d5 2. g3 e5 3. f4 Bxh3 4. Bxh3 exf4 30 September 2002
Petrov's Defense 1. e4 e5 2. Nf3 Nf6 30 September 2002
Petrov's Defense Chigorin Variation 5. d4 d5 6. Bd3 Be7 7. 0-0 Nc6 8. Re1 14 October 2002
Petrov's Defense Chigorin Variation - Berger Variation 8. Re1 Bg4 9. c3 f5 10. Nbd2 14 October 2002
Petrov's Defense Ch Berger - Krause Var - Maroczy Variation 9. c3 f5 10. c4 Bh4 14 October 2002
Petrov's Defense Classical Attack 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 07 October 2002
Petrov's Defense Closed Variation 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 Nf6 14 October 2002
Petrov's Defense Cochrane Gambit 3. Nxe5 d6 4. Nxf7 14 October 2002
Petrov's Defense Damiano Variation 3. Nxe5 Nxe4 14 October 2002
Petrov's Defense French Attack 3. Nxe5 d6 4. Nf3 Nxe4 5. d3 07 October 2002
Petrov's Defense Italian Variation 2. Nf3 Nf6 3. Bc4 30 September 2002
Petrov's Defense Jaenisch Variation 5. d4 d5 6. Bd3 Be7 7. 0-0 Nc6 07 October 2002
Petrov's Defense Kaufmann Attack 3. Nxe5 d6 4. Nf3 Nxe4 5. c4 07 October 2002
Petrov's Defense Lasker Variation 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2 14 October 2002
Petrov's Defense Marshall Variation 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 07 October 2002
Petrov's Defense Marshall - Tarrasch Variation 7. 0-0 0-0 8. c4 Bg4 07 October 2002
Petrov's Defense Marshall Tarrasch - Marshall Trap 9. cxd5 f5 10. Re1 Bxh2+ 07 October 2002
Petrov's Defense Mason Variation 5. d4 d5 6. Bd3 Be7 7. 0-0 0-0 14 October 2002
Petrov's Defense Nimzowitsch Variation 4. Nf3 Nxe4 5. Nc3 14 October 2002
Petrov's Defense Paulsen Variation 3. Nxe5 d6 4. Nc4 07 October 2002
Petrov's Defense Steinitz Variation 2. Nf3 Nf6 3. d4 30 September 2002
Petrov's Defense Steinitz - Bardeleben Variation 3. d4 exd4 4. e5 Ne4... 30 September 2002
Petrov's Defense Steinitz - Modern Attack 3. d4 exd4 4. e5 Ne4 5. Qxd4 30 September 2002
Petrov's Defense Steinitz - Symmetrical Variation 3. d4 Nxe4 30 September 2002
Petrov's Defense Steinitz Symmetrical - Trifunovic Variation 4. Bd3 d5... 30 September 2002
Petrov's Defense Three Knights Game 2. Nf3 Nf6 3. Nc3 30 September 2002
Philidor's Defense 1. e4 e5 2. Nf3 d6 21 October 2002
Philidor's Defense Berger Variation 4. Nxd4 Nf6 5. Nc3 Be7 6. Be2 0-0... 21 October 2002
Philidor's Defense Boden Variation 3. d4 exd4 4. Qxd4 Bd7 21 October 2002
Philidor's Defense Duke of Brunswick Gambit 3. d4 Bg4 4. dxe5 Nd7 28 October 2002
Philidor's Defense Exchange Variation 3. d4 exd4 21 October 2002
Philidor's Defense Exchange Variation 4. Nxd4 Nf6 3. d4 exd4 4. Nxd4 Nf6 21 October 2002
Philidor's Defense Hanham Variation 2. Nf3 d6 3. d4 Nd7 11 November 2002
Philidor's Defense Hanham Variation - Delmar Variation 4. Bc4 c6 5. c3 11 November 2002
Philidor's Defense Hanham Variation - Kmoch Variation 4. Bc4 c6 5. Ng5 11 November 2002
Philidor's Defense Hanham Kmoch - Berger Variation 6. f4 Be7 7. 0-0 0-0 8. c3 11 November 2002
Philidor's Defense Hanham Variation - Krause Variation 4. Bc4 c6 5. 0-0 11 November 2002
Philidor's Defense Hanham Krause - Steiner Variation 5. 0-0 Be7 6. dxe5 11 November 2002
Philidor's Defense Hanham Variation - Schlechter Variation 4. Bc4 c6 5. Nc3 11 November 2002
Philidor's Defense Larsen Variation 3. d4 exd4 4. Nxd4 g6 21 October 2002
Philidor's Defense Lopez Countergambit 3. Bc4 f5 28 October 2002
Philidor's Defense Lopez CG - Jaenisch Variation 4. d4 exd4 5. Ng5 Nh6 6. Nxh7 28 October 2002
Philidor's Defense Nimzowitsch (Jaenisch) Variation 3. d4 Nf6 11 November 2002
Philidor's Defense Nimzowitsch (Jaenisch) Variation 3. d4 Nf6 4. dxe5 11 November 2002
Philidor's Defense Nimzowitsch - Improved Hanham Variation 4. Nc3 Nbd7 11 November 2002
Philidor's Defense Nimzowitsch - IHV - Sozin Variation 5. Bc4 Be7 6. 0-0 0-0... 11 November 2002
Philidor's Defense Nimzowitsch - Klein Variation 3. d4 Nf6 4. Bc4 11 November 2002
Philidor's Defense Nimzowitsch - Locock Variation 3. d4 Nf6 4. Ng5 11 November 2002
Philidor's Defense Nimzowitsch - Rellstab Variation 4. dxe5 Nxe4 5. Qd5 11 November 2002
Philidor's Defense Nimzowitsch - Sokolsky Variation 4. dxe5 Nxe4 5. Nbd2 11 November 2002
Philidor's Defense Paulsen Attack 3. d4 exd4 4. Nxd4 d5 5. exd5 21 October 2002
Philidor's Defense Philidor Countergambit 3. d4 f5 28 October 2002
Philidor's Defense Philidor CG - del Rio Attack 4. dxe5 fxe4 5. Ng5 d5 6. e6 28 October 2002
Philidor's Defense Philidor CG del Rio - Berger Variation 6. e6 Bc5 7. Nc3 28 October 2002
Philidor's Defense Philidor Countergambit - Zukertort Variation 3. d4 f5 4. Nc3 28 October 2002
Philidor's Defense Steinitz Variation 3. Bc4 Ne7 4. c3 28 October 2002
Pirc Defense 1. e4 d6 18 November 2002
Pirc Defense 2. d4 Nf6 1. e4 d6 2. d4 e6 18 November 2002
Pirc Defense 3. Nc3 g6 4. Be2 3. Nc3 g6 4. Be2 18 November 2002
Pirc Defense 4. f3 System 3. Nc3 g6 4. f3 18 November 2002
Pirc Defense Austrian Attack 3. Nc3 g6 4. f4 18 November 2002
Pirc Defense Austrian Attack 5. Nf3 O-O 4. f4 Bg7 5. Nf3 O-O 18 November 2002
Pirc Defense Austrian Attack 6. e5 5. Nf3 O-O 6. e5 18 November 2002
Pirc Defense Austrian Attack 6. Bd3 5. Nf3 O-O 6. Bd3 18 November 2002
Pirc Defense Austrian Attack 6. Be3 5. Nf3 O-O 6. Be3 18 November 2002
Pirc Defense Austrian Attack - Dragon Formation 4. f4 Bg7 5. Nf3 c5 18 November 2002
Pirc Defense Austrian Attack - Ljubojevic Variation 4. f4 Bg7 5. Bc4 18 November 2002
Pirc Defense Bayonet Attack 3. Nc3 g6 4. Be2 Bg7 5. h4 25 November 2002
Pirc Defense Byrne Variation 3. Nc3 g6 4. Bg5 25 November 2002
Pirc Defense Chinese Variation 3. Nc3 g6 4. Be2 Bg7 5. g4 25 November 2002
Pirc Defense Classical Variation 3. Nc3 g6 4. Nf3 25 November 2002
Pirc Defense Classical Variation 5. h3 4. Nf3 Bg7 5. h3 25 November 2002
Pirc Defense Classical Variation 5. Be2 4. Nf3 Bg7 5. Be2 25 November 2002
Pirc Defense Classical Variation - Two Knights System 3. Nc3 g6 4. Nf3 Bg7 25 November 2002
Pirc Defense Czech System 2. d4 Nf6 3. Nc3 c6 18 November 2002
Pirc Defense Fianchetto Variation 3. Nc3 g6 4. g3 25 November 2002
Pirc Defense Kholmov Variation 3. Nc3 g6 4. Bc4 25 November 2002
Pirc Defense Roscher Gambit 2. d4 Nf6 3. Nf3 25 November 2002
Pirc Defense Small Center System 1. e4 d6 2. d4 e6 18 November 2002
Pirc Defense Variation 150 Attack 3. Nc3 g6 4. Be3 c6 5. Qd2 25 November 2002
Polish Defense 1. d4 b5 16 December 2002
Polish Defense Spassky Gambit 2. e4 Bb7 3. Bxb5 f5 16 December 2002
Polish Opening 1. b4 16 December 2002
Polish Opening Polish Gambit 1...e5 2. Bb2 f6 3. e4 Bxb4 16 December 2002
Polish Opening Labahn Gambit 1...d5 2. Bb2 d4 3. Nf3 c5 16 December 2002
Polish Opening Lewin Double Gambit 1...e5 2. e4 Bxb4 3. f4 exf4 16 December 2002
Polish Opening Outflank Variation 1. b4 c6 16 December 2002
Polish Opening Schiffler Gambit 1...e6 2. Bb2 f5 3. e4 16 December 2002
Polish Opening Tuebingen Variation 1...Nh6 16 December 2002
Ponziani Opening 1. e4 e5 2. Nf3 Nc6 3. c3 23 December 2002
Ponziani Opening 3. c3 f5 2. Nf3 Nc6 3. c3 f5 23 December 2002
Ponziani Opening Caro Variation 3. c3 d5 4. Qa4 Bd7 23 December 2002
Ponziani Opening Jaenisch Counterattack 3. c3 Nf6 23 December 2002
Ponziani Opening Jaenisch - Fraser Defense 4. d4 Nxe4 5. d5 Bc5 23 December 2002
Ponziani Opening Leonhardt Variation 3. c3 d5 4. Qa4 Nf6 23 December 2002
Ponziani Opening Reti Variation 3. c3 Nge7 23 December 2002
Ponziani Opening Romanishin Variation 3. c3 Be7 23 December 2002
Ponziani Opening Schmidt Attack 3. c3 f5 4. d4 d6 5. d5 23 December 2002
Ponziani Opening Schmidt - Cordel Variation 5. d5 fxe4 6. Ng5 Nb8... 23 December 2002
Ponziani Opening Steinitz Variation 3. c3 d5 4. Qa4 f6 23 December 2002
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