I recently played a game of speed chess at chess.com with a discovered checkmate. I moved my bishop and exposed it to capture. I will never forget this game because such a mate is rare. My opponent was Lontayao of the Phillipines who played black. Here are the moves of the game along with my commentary:
1. e4 e5
2. Nf3 Nc6
3. Bb5 d6
Here the most popular reply for black is a6.
4. d4 Bd7
5. h3 Nf6
6. dxe dxe
7. Nc3 Bd6
8. Bg5 0-0
9. Nd5 h6
A better move for black is Be7.
10. Nxf6+ gxf6
11. Bxh6 Re8
I gain a pawn and shatter the pawn shield around the black king.
12. 0-0 f5
13. Bg5 f6
I weaken black's pawn structure.
14. Bh6 Kh7
The black king attacks my bishop but is now more exposed.
15. Bd2 Rg8
Black prepares a counterattack against my king.
16. Nh4 fxe
My move opens a diagonal for my queen.
17. Qh5+ Kg7
Black's move is forced.
18. Bh6+ Kh8
I involve another piece in the attack. Again black's move is forced.
I move my bishop to discover a mate with my queen. Though my bishop is subject to capture, it is of no consequence. This is one of the most beautiful checkmates I have ever played.
In this game, material is even. However, I win because my king is well protected, my pieces are well-coordinated and my pawn structure is superior. I convert all of these advantages into victory.