That 5.a4 is gutless. It's an Evans GAMBIT
for christ sake.
Toss the opening out the window and play chess.
5.b5! Na5 6.Bxf7+ Kxb 7.Nxe5+
Two pawns and an uncatled King. (similiar to the Cochrane gambit).
I have played that OTB and won.
And I don't care what theory or a box says - OTB this OK.
Only one lad has had the nerve to play it one here. A 1400 player.
He mated Black in 13 moves.
And you - JDchess.
Take the b-pawn and stop being such a wimp by declining gambits.
Take all offered pawns and give them back with venom.
Captain Evans gives us a wonderful gambit and you lot want to decline it.
Call youselves Chess players.........
This is me playing this line OTB . I sac my Bishop, I sac my Knight,
still two piece down I sac my Queen. Then win.
And this was one of my quiet positional games.
G. Chandler - Dr. Ratcliff, Edinburgh League, 1983