Must be defined A00 on wikipedia for reference https://en.wikipedia.org/wiki/List_of_chess_openings https://en.wikipedia.org/wiki/Irregular_chess_opening Update 2024-28-12 (PST): - The resolution criteria will be based on the official A00 designation, not on Wikipedia's definition. (AI summary of creator comment)

Probably not — Manifold Markets prediction market estimates a 28% chance (11 traders, as of Sep 24, 2026).

Will an Irregular Opening be played in at least one game of the World Chess Championship 2026?

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Will an Irregular Opening be played in at least one game of the World Chess Championship 2026?

Ṁ100Ṁ216

Dec 19

28%

chance

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Must be defined A00 on wikipedia for reference

https://en.wikipedia.org/wiki/List_of_chess_openings

https://en.wikipedia.org/wiki/Irregular_chess_opening

Update 2024-28-12 (PST): - The resolution criteria will be based on the official A00 designation, not on Wikipedia's definition. (AI summary of creator comment)

2024 World Chess Championship

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What it was'nt before the game, but someone writes the article immediately after the game and so defines it with citations (on wikipedia)

@JussiVilleHeiskanen Wikipedia doesn't decide what is A00

@marvingardens yes but the market maker is guided by it

@JussiVilleHeiskanen ill only go off the official A00 not wiki, good catch lol

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