user22937: I had started playing this game with Scandinavian Defense opening. How it is been denoted as French Advanced variation as of 3rd move. Please refer to the attached screen-shot.


user11629: As explained in the fine answer by AlwaysLearningNewStuff, you have transposed into the Advanced French. 
Such transpositions are common in chess. That's why, if you are assigning an opening to a game you would normally go backwards and base it on the last known theoretical position in that game.
Concerning the moves of that game. 2. e5 is objectively not the best move for white as it allows black a good version of the French defense. 
More popular replies than 2....e6 are 2...c5 (with the idea to develop the bishop from c8 before playing e6) or an immediate 2....Bf5. In either case, black gets a French defense pawn structure but has solved the problem of having a weak light squared bishop.

user2042: I apologize for posting a comment as an answer, but this is the only way for me to include diagrams, which I find helpful.
You have entered Advanced French defense by transposition. 
After 1.e4 d5 2. e5 e6 3.d4 we get the following position:
[StartFlipped "0"]
[fen "rnbqkbnr/ppp2ppp/4p3/3pP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq - 0 3"]

The usual way of reaching the above position is with 1.e4 e6 2. d4 d5 3. e5
[StartFlipped "0"]
[fen "rnbqkbnr/ppp2ppp/4p3/3pP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq - 0 3"]

Lichess was smart enough to figure this out.

22937: <p>I had started playing <a href="https://lichess.org/1sQrvuhA#5" rel="nofollow noreferrer">this</a> game with Scandinavian Defense opening. How it is been denoted as French Advanced variation as of 3rd move. Please refer to the attached screen-shot.</p>

<p><a href="https://i.stack.imgur.com/ZKKru.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ZKKru.png" alt="enter image description here"></a></p>
 11629: <p>As explained in the fine answer by AlwaysLearningNewStuff, you have transposed into the Advanced French. </p>

<p>Such transpositions are common in chess. That's why, if you are assigning an opening to a game you would normally go backwards and base it on the last known theoretical position in that game.</p>

<p>Concerning the moves of that game. 2. e5 is objectively not the best move for white as it allows black a good version of the French defense. </p>

<p>More popular replies than 2....e6 are 2...c5 (with the idea to develop the bishop from c8 before playing e6) or an immediate 2....Bf5. In either case, black gets a French defense pawn structure but has solved the problem of having a weak light squared bishop.</p>
 2042: <p>I apologize for posting a comment as an answer, but this is the only way for me to include diagrams, which I find helpful.</p>

<p>You have entered Advanced French defense <em>by transposition.</em> </p>

<p>After <strong>1.e4 d5 2. e5 e6 3.d4</strong> we get the following position:</p>

<pre><code>[StartFlipped "0"]
[fen "rnbqkbnr/ppp2ppp/4p3/3pP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq - 0 3"]
</code></pre>

<p>The usual way of reaching the above position is with <strong>1.e4 e6 2. d4 d5 3. e5</strong></p>

<pre><code>[StartFlipped "0"]
[fen "rnbqkbnr/ppp2ppp/4p3/3pP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq - 0 3"]
</code></pre>

<p>Lichess was smart enough to figure this out.</p>
