Originally posted by David113
I want to construct a proof game for the following position:
White moved last.
White captured bQ on the d-file. Black made 4 captures to get the pawn structure [b- and c-pawns cross-capture to get behind wP's, and g- and f- shifted one left each]. This accounts for all captures.
wPg2 is not on the board, and could not have been captured; it must have promoted.
Retraction could run: 1.Rb4 Bb5 2.Ka4 Be2 3.Rg4 Nb5 4.Ra3 Nd4 5.b5 cb6[+R] 7.Rc3 Kc5 8.Rcg3 etc. The 3rd Rook is the promoted g-pawn.
Edit: This is a good enough hint to allow construction of a PG. Giving the whole thing would be a bit tedious.