What Makes a Move "Brilliant"?

For engines like Stockfish, a "brilliant" move typically means: a move that is objectively best (or very close to best) and involves a non-obvious sacrifice. The move must give up material and yet maintain or increase the evaluation. In practical terms: if Stockfish evaluates a position as +1.0, the brilliant move sacrifices material (dropping the evaluation to, say, -2.0 if the opponent accepts) but the resulting position is actually +3.0 after the forced continuation. The move is "brilliant" because it requires seeing through the material loss to the deeper truth.

For human players, brilliance is aesthetic, it involves surprise, elegance, and a violation of expectations. A move is brilliant when:

1. It violates general principles (sacrificing material, retreating when attacking, making a "quiet" move in a sharp position).
2. It requires deep calculation to verify (the consequences are not obvious).
3. It produces a beautiful result (checkmate, domination, a winning endgame).
4. It feels "impossible", the kind of move that makes you wonder how a human could find it.

The most interesting cases are moves that engines consider brilliant but humans find ugly (a passive-looking move that prevents a deep threat) and moves that humans consider brilliant but engines dismiss (a sacrifice that is technically "not best" but produces a stunning visual result). The greatest moments in chess history combine both: moves that are objectively best and aesthetically beautiful.

Some candidates: Kasparov's Rxd4!! (vs. Topalov, 1999), Shirov's Bh3!! (vs. Topalov, 1998), Fischer's Be6!! (vs. Larsen, 1971), Tal's countless piece sacrifices, and Wei Yi's queen sacrifice (vs. Bruzon, 2015). Each combines objective correctness with aesthetic beauty, the hallmark of true brilliance. Explore these games in our legends archive.