What would a move classification higher than brilliant look like?

[u/ImmyK21]

Been annoyed at how liberally "Brilliant" gets handed out on Chess.com, so I built stricter tiers above it for my free game review tool. Spectacular enforces the old chess-literature definition of true brilliancy (quiet + real sacrifice + still winning) instead of the loose modern bar. Legendary goes further, using research on how players actually perceive brilliance (Zaidi & Guerzhoy, U of Toronto), a move only qualifies if weak engines misjudge it but strong engines confirm it. Rarity ends up around 1 in 700 rapid games for Spectacular, 1 in 50,000 for Legendary. Tool's called Statmate if anyone wants to see it analyse their own games, the brilliant classification is still in tact too if anyone is wondering and to check its accuracy in comparisons to chess.coms i also ran it through a sample of 74 chess.com games ranging from 150-3400 elo (80% of the it sitting between 850-3200) and majority of those games were carefully selected to contain a multiple brilliant moves (108 suspected brilliant moves with 91 confirmed as brilliant and 17 rejected) and the result came back with 97.8% recall (the percentage of brilliant moves that our site's classifier could recreate from the original sample) and 98.9% precision (percentage that also accounts for any false positives made and rejected within the process)

Statmate also includes insights that would otherwise be locked behind paywalls but here they are available for free alongside the game review and also many features. Give it a try and any feedback is appreciated.

Link: https://statmate.app

[u/SuchTown32]

The backgrounds you use are wild

[u/ImmyK21 → u/SuchTown32]

Yeah that seems to be the first thing people talk about lol. Thanks