Symmetry?

Each of the eight White pieces in the first rank made exactly three movements – except one of them who made a single movement: which one? 
(New version, September 12th, 2020; the old one was cooked by « Étienne » on Chess Stack Exchange)

The (hopefully sound and unique) solution is (in)visible hereunder (after the Lorem ipsum text) due to the extra-small white-on-white font.
To read it, copy/paste this page in your notepad.
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Only the White moves are listed – except when Black’s moves are relevant (we’ll use brackets for them) 1.a4 2.a5 3.a6 4.axb (Na6) 5.b8=R 6.Rb3 7.R3a3 8.c4 9.Qa4 10.d3 11.Bh6 12.Bd2 13.e3 14.Be2 15.Bf3 16.Be4 17.Nf3 18.Ke2 19.Rc1 20.Rc3 21.Rcb3 (Bb7) 22.Rb6 (cxR) 23.c5 24.c6 25.c7 26.c8=B 27.Bc6 (dxB) 28.Bg4 (Nb8) 29.Nc3 (Bc8) 30.Rh1 31.Ra1 32.Qd1 33.Bc1 34.Nd2 35.Nb1 36.Kd2 37.Ne2 38.Ng1 39.Ke1 40.Be2 (Bc8) 41.Bf1



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