How many openings can you name

200

Bird, English, King's Indian, Queen's Indian, Slav, Semi-Slav, Ruy Lopez, Giuco Piano, French, King's Gambit, Queen's Gambit, French, Caro-Khan,Alekhine, Réti, Larssen, Scandinavian, Sicilian, 4 knights, Scotch, Catalan, Benoni.

0 and proud of it

Manhattan Variation, Dutch, Meran, Stonewall, Russian

King's indian and Queen's Indian, because I am an Indian. I don't know any other opening. Thank you.

That's a synch!  Added a few extra in case you wanted to try to claim duplicate.

1) Norfolk Gambit (1.Nf3 d5 2.b3 c5 3.e4 dxe4 4.Ne4)

2) Semi-Slav Defense (Not the same as the "Slav" you mention)

3) Goring Gambit (1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.c3 dxc3 5.Nxc3)

4) Catalan (1.d4 Nf6 2.c4 e6 3.g3 or 1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3)

5) Torre Attack (1.d4 Nf6 2.c4 e6 3.Bg5 or 1.d4 Nf6 2.c4 g6 3.Bg5)

6) Veresov Attack (1.d4 Nf6 2.Nc3 d5 3.Bg5)

7) Owen's Defense (1.e4 b6 2.d4 Bb7 w/o c4 By White)

8) English Defense (1.d4 e6 2.c4 b6 3.e4 Bb7 and now 4.Bd3 Nc6 or 4.Nc3 Bb4)

9) English Opening (1.c4)

10) Reti Opening (1.Nf3 d5 2.c4)

11) Petroff (1.e4 e5 2.Nf3 Nf6)

12) Philidor's Defense (1.e4 e5 2.Nf3 d6 3.d4 or 1.e4 d6 2.d4 Nf6 3.Nc3 e5)

13) Old Indian Defense (1.d4 Nf6 2.c4 d6 w/o g6)

tarrasch defense, bowlder attack, apocalypse attack, blumenfeld gambit and jaenisch gambit

, French, bird, Philidor, Petroff, London.  Did I spell those wrong?

A00, A01, A02, A03, Reti, A05, ...

The three Marshall Gambit, William's Gambit, Max Lange Attack. Can I claims the Russian, the Petroff's, and the Petrov's as different openings?