In the following game, Bill Wall sends one piece, then another, far from the action - or so it seems. Each returns, only to be traded off - yet they are active in helping win the game. The final position is very interesting.
Wall, Bill - NN
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+
4...Kxf7 5.Nxe5+ Nxe5 6.d4 Qf6
An unusual defense, but, according to The Database, one faced by other Jerome Gambiteers such as blackburne, chessmanjeff, drumme, HauntedKnight, jfhumphrey, stretto, Teterow, and yorgos. Black, having to lose a piece, decides not to move either, but develops a piece instead.
7. dxc5 Ne7
Further development. Black also had 7...d6, e.g. 8.O-O dxc5 (8...Be6 9.cxd6 cxd6 10.f4 Ng4 11.f5 Qd4+ 12.Qxd4 Black resigned, Wall,B - Anonymous, lichess.com, 2016) 9.Qd5+ Be6 10.Qxb7 Ne7 11.Qxc7 Rac8 12.Qxa7 Qg6 13.f4 Bh3 14.fxe5+ Ke8 15.Qa4+ Rc6 16.Rf2 Rf8 17.Qa8+ Rc8 18.Qa3 Rxf2 19.Qxh3 Rxc2 20.Na3 Re2 21.Nb5 Kf8 22.Qf3+ Ke8 23.Qxe2 h5 24.Nd6+ Kd7 25.Nxc8 Nxc8 26.Qb5+ Kd8 27.Bg5+ Qxg5 28.Rd1+ Ke7 29.Qd7+ Kf8 30.e6 Qe3+ 31.Kh1 Ne7 32.Qd8 checkmate, Wall,B - NN, lichess.org, 2016
8.O-O Rf8 9.Nc3 Kg8
Black has castled-by-hand and has seen to his piece development. What will White do? A hint can be found in an earlier Bill Wall game, with a different defense: 9...c6 10.f4 N5g6 11.Be3 d5 12.cxd6 Ng8 13.d7 Rd8 14.dxc8=Q Raxc8 15.Qh5 Kf8 16.e5 Qf7 17.f5 Nxe5 18.Bc5+ Ne7 19.Qxh7 Qf6 20.Ne4 Qh6 21.Qxh6 gxh6 22.f6 Black resigned, Wall,B - Guest4060198, PlayChess.com, 2013.
10.f4 N5c6 11.Nb5 a6 12.Nxc7 Rb8 13.c3 Qg6
It looks like White has sent his one developed piece off on a risky pawn-hunt, but the Knight still has influence on the center, and the first player still has things under control - thanks, in part, to the "Jerome pawns".
14.f5 Qf6 15.Bf4 Ne5 16.Nd5 Nxd5 17.Qxd5+ Nf7 18.Bxb8 Re8
White has retrieved (and traded off) his far-flung Knight, and now has a Bishop off in the wilderness (admittedly, it captured a Rook). An interesting comparison can be made between the two Bishops left on the board, as one is actively involved, while the other is a passive observer.
19.Rae1 Kh8 20.e5 Qe7 21.Bd6 Nxd6
The Bishop, too, is exchanged, but by now White has a powerful, checkmating attack.
22.f6 gxf6 23.cxd6 Qe6 24.exf6 Black resigned
What a position!
Black can simply take White's Queen with 24...Qxd5, but it will be checkmate in a few moves after 25.Rxe8+ Qg8 26.f7!
Black's best option is to win two Rooks for his Queen with 24...Qxe1 25.Rxe1 Rxe1+ 26.Kf2 but it is clear that he has no way of dealing with White's advanced pawn, for example 26...Re6 27.Qg5 or 26...Re8 27.f7.