How Can I Patent a Chess Opening

A patent can only be filed by the original inventor and if it was used before them then it's in the public domain. So to prove that he's the inventor he has to demonstrate when he first played it and if he's the first player to ever use it then he could in theory have a valid claim.

In this case the position he wants to patent first arose in Morphy - Hart (www.chessgames.com/perl/chessgame?gid=1336329) in 1854. So if the OP has played this variation earlier than Morphy did 170 years ago then I think he might have a chance to patent it. If OP is over 170 years old I'm sure monetising a chess patent isn't the best way to monetise their longevity.

However there is also problem that patents usually expire with most patents only lasting around 20 years while Mickey Mouse was 95 years so even if he could retroactively patent it 170 years ago by now it would have expired.

Just a FYI but this position is pretty much a Scotch Gambit transposition from the Italian Game.

@WalterTrentkamp said in #1:
> Hi everyone I have invented this opening. lichess.org/study/CVp2mcGF It doesn't have a name, but I would like to call it the Waterloo Gambit. How do I go about getting it's name recognized?

(FYI: that should be "its", not "it's". "It ́s" is always an abbreviation for "It is". Just saying. )

Write to these people; I ́m sure they ́ll be delighted to file your claim:

www.gov.uk/government/organisations/intellectual-property-office

(PS after 6... Qd7 Black already has the advantage; Nakamura played this 17 years ago and lost against a lower rated opponent: lichess.org/B3cuCIpf)

It's lit a weirdly layed Italian Game: Paris Defense

The OP seems to be trying very hard and desperate to claim an invention :D

lichess.org/forum/game-analysis/i-hereby-christen-this-trap-the-billie-bogan-trap#1

You have to love newbes.
I have played this some thirty years ago and I reckon so have many others, hundreds of years ago.
It's just a sub line of the Göring Gambit but the naming aside these "tricks" with c3 with Bc4/Qb3 exist in many variations including the Italian Gambit, Evans, Danish, etc.
Nothing new or special about it. It's just thematic.

you can patent chess openings with me. The fee is $5000 and you get a patent number which will be #0000001 and an embossed certificate with my seal to prove you hold the patent from me.

Have you tried phoning Napoleon? Field Marshall Bluther? If all else fails you can write to Wellington himself.