suspicious_openings wrote:
2. d4 or 3. d4 are both very strong continuations against 2...Nf6
How can you play 2. d4 after 2. ...Nf6 ? Not sure what you mean?
I don't understand the Scandinavian Defence
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#263 hrs ago
The beginner Alan Dewey (chessspy) who is not even a rated player wants to lecture us about Scandinavian!!"
To the contrary, Sm, I simply pointed out that as usual, your comments do not seem to mesh with known fact.
I've played this opening OTB quite a bit. I got up to 1910 USCF playing it, and my success above that level is not due to the opening. I have a book written by a GM who uses it frequently as well because he didn't have time to study all the main lines and compete at his level. Smeardon I think is his name. I would not really recommend dismissing the opening as inferior simply because it is not played as much. There is a lot of poison in the lines if you know them well, and not just for black. The games are often fairly sharp in the modern lines, and the main line is very solid. I've had the most success with the main line, however I've used both. I really don't like the Bb5+ lines in the modern as they seem problematic.
santiagomagno15 έγραψε:
1 e4 d5 2 exd5 Nf6 without loosing tempo
Very true! After ...Nf6 / ...Nxd5 / ...Nb6 (because of an eventual c2-c4) you are losing two tempos, not one... 
On a more serious point, both moves have their own (dis)advantages. I prefer 2...Qxd5, since white's road to a try for an advantage is very narrow- namely 3.Nc3, when the knight is less than ideally placed.
Stauntonmaster έγραψε:
After 2...Nf6 3. Bb5+. This is the way forward and it is black that should struggle to recover its pawn.
White's advantage after 3...Bd7 4.Be2 (I think Black has chances after 4.Bc4), is quite small.
The best line is 3.d4 Bg4 (Portuguese gambit) 4.f3 Bf5 5.g4 etc (Black is not in a good shape), but it's very sharp and requires good memorization, plus more.
Safest line for white is 4.f3 Bf5 5.Bb5+ Nbd7 (of course now 5...Bd7 is just a loss of time, while 5...c6 is playable, but not good) 6.Nc3! a6 7.Ba4 b5 8.Bb3 Nb6 9.Nge2, where white returns the pawn but gains a pretty respectable & enduring positional advantage. Actually this line is advocated by GM Shaw in his recent white repertoire book.
Apr 29, 2018
0
#27
what about 4 f3 Bf5 5Bb5+ Nbd7 and now 6c4 a6 7Bxd7+(7Ba4 b5)Qxd7 8Ne2 i have little problem to
understand what compensation have black here.Ok they have bishop pair but white position is super solid. Maybe this line is problemless for black in correspondence chess,but in over board chess is need lot memorization in order to prove enough compensation for pawn.And I think that one of ideas behind Scandinavian is to avoid long theoretical lines.
DavidStefanov έγραψε:
what about 4 f3 Bf5 5Bb5+ Nbd7 and now 6c4 a6 7Bxd7+(7Ba4 b5)Qxd7 8Ne2 i have little problem to
understand what compensation have black here.Ok they have bishop pair but white position is super solid. Maybe this line is problemless for black in correspondence chess,but in over board chess is need lot memorization in order to prove enough compensation for pawn.And I think that one of ideas behind Scandinavian is to avoid long theoretical lines.
6...a6 is probably a loss of time. Instead 6...e6 will also gain the bishop pair after a while (unless white doesn't mind having a misplaced bishop). All that are carefully covered in Smerdon's book.
6.Nc3! looks like a better move to me.
The beginner Alan Dewey (chessspy) who is not even a rated player wants to lecture us about Scandinavian!!
white wins 44% against 2...Nf6 as opposed to 42% against 2...Qxd5. 3.Bb5+ wins 46% against 2..Nf6.
That is why most top GMs prefer 2...Qxd5.
2...Nf6 is inferior and is second choice and played half as often as 2..Qxd5 but some chess players use it hoping to confuse their opponent. The antedote is 3.Bb5+. If black blocks the check with 3...Bd7 white just plays 4.Bc4 and gets a good position. White scores 44% win and (black only 28% )against this line. And if black plays 3..Nd7 white simply plays 4.c4 and gets very good position.
This is very good advice/information! [except after 1. e4 d5 2. exd5 Nf6
3. Bb5ch Nd7 play 4. d4 not 4. c4]