A good beginning is the game half won - that is something that can be easily said about chess. Experts divide a game into three divisions - opening game, middle game, and end game. Each of these divisions of games has its own rules and strategies. However, the opening game remains the most important part. There is more research and study to be done on it than the other two parts of a chess game combined; that is, it is widely studied in chess course for beginners.
There are several excellent chess openings, but they can all be broadly categorized - e4 openings, d4 openings, and others.
The Italian game is one of the most popular, common, and best kinds of opening games. It begins as follows:
The pawns make claims on pawns (like all e4 and d4 openings), and then knights are developed. That is generally followed by the development of minor pieces.
The Italian game has black going for a second defensive move. In Sicilian Defence, black responds with a more aggressive 4.d4. If the pawns are exchanged, the black queen will be in the center. Otherwise, black has two pawns in the center as against white’s one. The moves are
Another answer from black to popular e4 opening is with e6. White will hasten to take better control of the center with d4, thus having two pawns in the center. That is responded with d5. Here, black relinquish some of the control of the center unless pawns are immediately exchanged. Black bishop at c8 will also find it hard to develop.
One of the most important d4 openings to learn is slave defense. The defense is a response to an aggressive 2.c4 move by white. Exchanging pawns would mean giving away the control of the center, and thus black must respond with a defensive c6. The downside for black is that it is now difficult to develop the knight at b8.
This opening is a less aggressive approach to the d4 opening by white. White develops a knight rather than making a pawn in the second move.
The opening best for you is one you are comfortable with. However, you must study all popular openings because sometimes your opponent may force you to play an opening you only. You can also learn the openings from chessbrainz using their online chess course for beginners.