Names of all 400 openings in 2 plies, Deluxe Edition

We order moves by their popularity in master games. We indicate also associated pawn structures (PSCC system). Unofficial names are marked by [*].

2 colors mark approximately the border of sound/unsound openings. 😎

1. e4 King's Pawn opening (KP) 2E

• 1...c5 Sicilian Defense 2Ec
• 1...e5 King's Pawn Game (KPG) / Open Game 2Ee
• 1...e6 French Defense 2E1e
• 1...c6 Caro-Kann Defense 2E1c
• 1...d6 Pirc Defense 2E1d
• 1...g6 Modern Defense 2E1g
• 1...d5 Scandinavian Defense 2Ed
• 1...Nf6 Alekhine Defense 2E
• 1...Nc6 Nimzo Defense 2E
• 1...b6 Owen Defense 2E1b
• 1...a6 St. George Defense 2E1a
• 1...g5 Borg Defense 2Eg
• 1...h6 Carr Defense 2E1h
• 1...Nh6 Hippo Defense 2E
• 1...Na6 Lemming Defense 2E
• 1...a5 Ware Defense 2Ea
• 1...f5 Duras Gambit 2Ef
• 1...f6 Barnes Defense 2E1f
• 1...h5 Goldsmith Defense 2Eh
• 1...b5 Polish* Gambit 2Eb

1. d4 Queen's Pawn opening (QP) 2D

• 1...Nf6 Indian Game 2D
• 1...d5 Queen's Pawn Game (QPG) / Closed Game 2Dd
• 1...e6 Horwitz Defense 2D1e
• 1...d6 Tartakower-Wade* Defense 2D1d
• 1...f5 Dutch Defense 2Df
• 1...g6 Modern Defense 2D1g
• 1...c5 Old Benoni Defense 2Dc
• 1...Nc6 Mikenas Defense 2D
• 1...c6 Caro-Kann/Slav Invitation* 2D1c
• 1...b6 English Defense 2D1b
• 1...b5 Polish Defense 2Db
• 1...e5 Englund Gambit 2De
• 1...a6 St. George Defense 2D1a
• 1...Na6 Australian Defense 2D
• 1...h6 Basman* Defense 2D1h
• 1...f6 QP: Barnes* Defense 2D1f
• 1...g5 Borg Gambit 2Dg
• 1...a5 QP: Ware* Defense 2Da
• 1...h5 QP: Goldsmith*  Defense 2Dh
• 1...Nh6 QP: Hippo* Defense 2D

1. Nf3 Réti opening IP

• 1...Nf6 Symmetrical Réti* IP
• 1...d5 Réti: QP* 2d
• 1...c5 Réti: Sicilian Invitation 2c
• 1...g6 Réti: Kingside Fianchetto 1g
• 1...f5 Réti: Dutch Variation 2f
• 1...d6 Réti: Pirc Invitation 1d
• 1...e6 Réti: QG Invitation 1e
• 1...Nc6 Black Mustang Defense IP
• 1...b6 Réti: Queenside Fianchetto 1b
• 1...b5 Réti: Polish Defense 2b
• 1...c6 Réti: Slav Invitation 1c
• 1...h6 Réti: Basman Defense 1h
• 1...a6 Réti: St. George Defense 1a
• 1...e5 Ross Gambit 2e
• 1...g5 Herrstrom Gambit 2g
• 1...f6 Arctic Defense 1f
• 1...Nh6 Réti: Hippo* Defense IP
• 1...Na6 Réti: Australian/Lemming* Defense IP
• 1...h5 Réti: Goldsmith* Defense 2h
• 1...a5 Réti: Ware Defense 2a

1. c4 English opening 2C

• 1...Nf6 Anglo-Indian Defense 2C
• 1...e5 King's English Variation 2Ce
• 1...e6 Agincourt Defense 2C1e
• 1...c5 Symmetrical Variation 2Cc
• 1...g6 Great Snake Variation 2C1g
• 1...c6 English: Caro-Kann Defensive System 2C1c
• 1...f5 Anglo-Dutch Defense 2Cf
• 1...b6 Anglo-Saxon* Defense 2C1b
• 1...d6 Old Indian Invitation* 2C1d
• 1...Nc6 Anglo-Lithuanian Variation 2C
• 1...d5 Anglo-Scandinavian Defense 2Cd
• 1...g5 English: Borg* Defense 2Cg
• 1...b5 Jaenisch Gambit 2Cb
• 1...a6 English: St. George* Defense 2C1a
• 1...Na6 English Lemming* Defense 2C
• 1...a5 English: Ware* Defense 2Ca
• 1...h6 English: Basman* Defense 2C1h
• 1...f6 English: Barnes* Defense 2C1f
• 1...h5 English: Goldsmith* Defense 2Ch
• 1...Nh6 English Hippo* Defense 2C

1. g3 Benko / Hungarian opening 1G

• 1...d5 Benko: QP* Variation 2d1G
• 1...Nf6 Benko: Indian Defense 1G
• 1...g6 Benko: Symmetrical Variation 1Gg
• 1...e5 Benko: KP* Variation 2e1G
• 1...c5 Benko: Sicilian Invitation 2c1G
• 1...f5 Benko: Dutch Defense 2f1G
• 1...e6 Benko: French* Variation 1Ge
• 1...d6 Benko: Pirc* Variation 1Gd
• 1...c6 Benko: Slav* Variation 1Gc
• 1...Nc6 Benko: Black Mustang* Defense 1G
• 1...h5 Lasker Simul Special 2h1G
• 1...b6 BenkOwen* Opening 1Gb
• 1...b5 Benko: Polish* Defense 2b1G
• 1...g5 Benko: Myers Defense 2g1G

(to be continued)

1. d4 d6: The name Tartakower-Wade* Defense is motivated by 2 openings below.

Tartakower Defense:

Wade Defense:

d4 d6 is old indian

i think so

Not exactly, Old Indian is reserved for the following opening:

Aren’t there 1300 openings?

In 2 plies (1 move) there are exactly 20x20 = 400 openings.

Oh. I must be thinking of variations.

but this is at least as appropriate as wade-tartakower, right?

also tartakower-wade is much better 

nf3 c6 is not unsound 

ok

Well, it depends on your viewpoint, but the pawn structures are different cuz of the additional c4 in the true Old Indian.

Thanks, I've corrected it. 😎

ok

polish gambit is pretty unofficial

Ah yeah, right.

There are no names for 1. c4 b6 and 1. c4 d6 openings. 😼

uh anglo-english(since1.d4 b6 is the english defense) and old indian invitation??(since 1.c4 d6 2.d4 Nf6 is the old indian and black is "inviting" white into this)

On e4 there's bongcloud attack

1.e4 e5 2.Ke2

(should i be ashamed this is my first post?)

You may be interested in https://en.wikipedia.org/wiki/Encyclopaedia_of_Chess_Openings

HOW DARE YOU BORG IS OP