Here is an early tournament game by GM Duncan Suttles, which remained undiscovered at the time of publication of Chess on the Edge, the monumental three-volume work by FM Bruce Harper and GM Yasser Seirawan.
Jose Ramon Alonso - Duncan Suttles, Gijon 1965 Modern Defence [A42]
1.d4 g6 2.c4 Bg7 3.Nc3 d6 4.e4 Nc6 5.Be3 e5 6.Nge2 Nh6 7.d5 Ne7 8.f3 f5 9.Qd2 Nf7 10.h4
White has no real attacking prospects on the kingside, so perhaps he is merely looking for complications. If so, he has met a worthy associate in Mr Suttles!
Radically forestalling a possible c4-c5 pawn break by White.
11.Ng1 h5 12.Nh3 f4 13.Bf2 Bh6 14.Bd3 a6 15.Ke2
Black is not well-placed for a queenside attack, so White should consider castling long, perhaps following up with Rdg1 and g2-g3!?
15...Bd7 16.a4 Qa5 17.b4 cxb4 18.Na2 Rc8 19.Rhb1 Bxh3 20.gxh3 Qxa4
With White's king still in the centre, Black should not be thinking about exchanging queens.
Stronger was 21.Qxb4! with queenside pressure for White.
21...Qd7 22.Rab1 Nd8
Here Black could make White's life difficult with 22...Qxh3! and if 23.Rxb7 then 23...g5!
23.Rb6 Rc7 24.c5 Nc8 25.cxd6 Nxd6 26.Qb2 N8f7 27.Rg1 Rg8 28.Nc3 Bf8 29.Qb3 Be7
Here too 29...Qxh3 would have posed problems for White.
30.Na4 (diagram) 30...Qxh3!?
But now it seems better to play 30...Qc8 and if 31.Qb1 then simply 31...Kf8 with advantage to Black.
This looks like a time trouble error. 31...Bxh4! was still good for Black. Now things turn around dramatically.
32.Bxc5 Bxh4 33.Rxb7 Nxb7 34.Qxb7 Nd8 35.Qh7! Rf8 36.Qxg6+ Rf7 37.Bxa6 Qh2+ 38.Rg2 1-0
In many ways a typical Suttles game: strategically deep, but tactically... not so deep!