Mostly middlegames · usually a rook move · found over the board
30% 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
924 positions, mostly middlegame. 85% of the moves are quiet (neither capture nor check) and the piece moved is most often a rook. In the engine's representation this group is closest to exposedKing (0.19), and only weakly. Real players at the board found these moves 29.9% of the time, losing an average of 328 centipawns by choosing otherwise.
924 positions found
29.9% found over the board
85% quiet moves
−328cp average human error
closest named motifs:
exposedKing 0.19 · defensiveMove 0.11 · quietMove 0.08