Yes, I believe 1.d4 d5 2. Bf4 Nf6 3. Nf3 c5 is the mainline.
Steinitz counter gambit
I thought the point of 2Bf4 was to be able to avoid this line?, couldn't say how don't play this as white.
not having played Nf3 is a better version for white if black adopts c5 Qb6 set up. For instance :
If u compare with Nf3 before Bf4 line, then Qxf5 is a mistake because d5 not "en prise", Nf6 would be played for black in this position...
For example :
And true also, 3.e4 is an interesting (strong?) Albin with white.
Yes but what about e3 and Nc3 instead of c3, and there's nothing wrong with Qc1 either as far as I know, exchanging the c for the d pawn is probably safer, in case of Nd4 from white Nd7 gives black a good game.
When do u play Nc3?
Nc3 is good only if black plays Qb6 too early, for instance :
1.d4 d5 2.Bf4 c5 3.e3 Qb6?! 4.Nc3!
But if Black waits one move with 3...Nc6 4.c3 u can no longer plays Nc3 idea.
Then u can also play 4.Nf3 transposing into normal London system's move order with Nf3 and Bf4, but u lose Bf4's sting as i mentionned earlier...
And again, if black is aware about Nc3 stuff, he will wait u play c3 before going for Qb6...
For example, 1.d4 d5 2.Bf4 c5 3.e3 Nc6 4.Nf3 (what a pity...) Nf6 and the best move is c3...
Black's best move may well be 3...Nc6!
Hi friends as i showed you the London system in my earlier article Holy king told me a move 3.c5 well Holy king it is played earlier and in a surprising manner known as Steinitz counter gambit it is played like this 1.d4 d5 2.Bf4 c5 is known as the Steinitz counter gambit