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lichess-org / lila-openingexplorer

Opening explorer for lichess.org that can handle all the variants and trillions of unique positions
http://lichess.org/analysis#explorer
GNU Affero General Public License v3.0
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Nimzo-Indian Defense E20 Premature Naming #61

Closed landry314 closed 5 years ago

landry314 commented 5 years ago

The Nimzo-Indian Defense E20 is described as:

  1. d4 Nf6 2. c4 e6 3. Nc3 Bb4

but if you make the moves

  1. d4 Nf6 2. c4 e6 3. Nc3

it is already prematurely calling this the Nimzo-Indian Defense.

If black does not make the move Bb4 and makes any other move the game will be described as a Nimzo-Indian Defense game which it is not.

Proof of the official E20 game moves:

https://www.365chess.com/eco/E20 http://www.chessgames.com/chessecohelp.html https://en.m.wikipedia.org/wiki/Nimzo-Indian_Defence

The Bb4 move is an essential part of this opening...

landry314 commented 5 years ago

Is this the right place to report this?

niklasf commented 5 years ago

Thanks @landry314, will fix. The right repository for similar issues would probably be https://github.com/ornicar/scalachess.

niklasf commented 5 years ago

Done. It can take a while before this lands in production.