I played offence.
This is the basic "Caro-Kann Defence" opening from my standpoint as White.
The game was ended by resignation by me. Indeed.
You can use your left and right arrows on your keyboard or use the mouse scroll to see the moves back and forth on the chessboard. But first, click the board.
Chess can be seen as a game of mistakes. Because it is. Every other game is also that, essentially. Who has the least mistakes usually wins. Unless such as in that game above.