The “Damped Harmonic Oscillator” Maneuver

Categorizing DHO, as an exceptional example of a “zwischenzung” would probably make some sense, although an in-between move is usually made instead of an expected recapturing, which is not the case here. Moreover, the “intermezzo” rarely occurs with the same piece moving twice in a row. Finally, don't forget that in order to form a “Damped Harmonic Oscillator" maneuver, no captures are allowed!

A fascinating pattern which can be carried out with or without a check, and based on my knowledge, has never been thoroughly explored or even properly defined, for that matter.