Mostly middlegames · usually a rook move · found over the board
26% of the time.
Now study them together
The same four positions, side by side, each with the engine's move and what follows.
There is no commentary on purpose. The pattern is easier to absorb than to describe,
which is the whole reason it has no name. Step through each line, then look at the
starting positions again.
Redo the try round
The numbers behind this pattern
258 positions, mostly middlegame. 77% of the moves are quiet (neither capture nor check) and the piece moved is most often a rook. In the engine's representation it has no measurable similarity to any of the twelve named motifs; the closest, exposedKing, sits at 0.00. Real players at the board found these moves 26.0% of the time, losing an average of 440 centipawns by choosing otherwise.
258 positions found
26.0% found over the board
77% quiet moves
−440cp average human error
closest named motifs:
exposedKing 0.00 · quietMove −0.05 · defensiveMove −0.07