Chigorin Tournament

Chigorin Memorial tournament is taking place right now in St Petesburg.
I was always hoping that there will be a tournament which require the participants to use the same opening bearing a legend's name.

For example, players have to use Chigorin Defense (d4 d5; c4 Nc6)

or any of the Chigorin's variation, for example in Ruy Lopez
1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O Be7 6 Re1 b5
7 Bb3 O-O 8 c3 d6 9 h3 Na5 10 Bc2 c5 11 d4 Qc7 12 Nbd2 cxd4 13 cxd4

Simpler variations would be:
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Nd7

There are some other openings too:

French
1. e4 e6 2. Qe2
or
1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. exf6

Dutch
1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 c6

Petrov
1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. Re1

Queen's Gambit
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3 Nbd7 6. Bd3 Bd6

It's hard to achieve in a huge tournament though.
Maybe a Round-robin of 6 people would be a nice number.

More study of the openings will be developed throughout the tournament.

All draw positions might also be the result of it though.
Hehehe