A move that checkmates is the only one without even a slight drawback.
Meesen White
Hans Mueller Black
Correspondence 1928
English Opening A28
1 c4 e5 2 ♘c3 ♘f6 3 ♘f3 ♘c6 4 d4
This was once the most popular way for White to play the English Opening.
4...exd4 5 ♘xd4 ♗b4!
The good news about 1 c4 is that it fights for control of d5. The slight drawback is that the c-pawn can become weak.
Black can exploit that after 6 ♗g5 h6 7 ♗h4 with 7...♗xc3+! 8 bxc3 d6 followed by ...♘e5.
A curiosity is Hans Mueller – Marcel Duchamp, The Hague 1928, 7...♘e4?? 8 ♗xd8 ♘xc3 9 ♘xc6 ♘xd1 10 ♘xb4 resigns.
6 ♘xc6? bxc6
White should play quietly and protectively (7 e3).
7 g3? ♕e7! 8 ♗g2 ♗a6!
Amazingly, White has no good defense of the c4-pawn (8 ♕b3 ♕c5).
Or 8 ♕d4 d5 9 cxd5?? ♕xe2 mate.
Question 33: But what about 9 b3 ?
9 ♕d3 d5 10 b3?
10...d4!
Quite good is 10...♖d8 since White cannot get out of the pin on the d3-a6 line without losing the c-pawn. But now he loses a piece.
11 ♕xd4
For example, 11 ♗xc6+ ♔f8 12 ♗d2 (or 12 ♗b2) dxc3.
11...♖d8 12 ♗xc6+ ♔f8 13 ♗d5 ♖xd5! White resigns.
Helmut Erhat White
Josef Lokvenc Black
Vienna 1950
1 c4 e5 2 ♘f3 ♘c6 3 ♘c3 ♘f6 4 d4 exd4 5 ♘xd4 ♗b4 6 ♗g5 h6 7 ♗h4 ♗xc3+ 8 bxc3 d6 9 ♕c2 ♘e5 10 e3 ♘g6 11 ♗g3 ♘d7!? 12 ♘e6 fxe6 13 ♕g6+ ♔f8 17 ♕xe6?? ♘f6 White resigns. The queen is trapped. Black would be OK after 17 ♗e2 ♕f6.