|sneaky pete: After 13... Kf8
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white is completely lost. All his pieces are on the wrong squares.
I was wondering why 9.Qb3 .. hasn't been played more often, but some research convinced me that it's not a very good move.
In this game 11.Re1 .. shows that white knows his Evans Gambit, but it's probably the losing move. Staunton, as we all know, didn't understand the Evans Gambit and played the more sensible 11.dxe5 .. here, but he lost just the same:
Staunton vs Rives, 1853
Black defenders wanting to avoid complications may play 9... Na5 exchanging white's precious LSB, but 9... Nxd4 cannot be recommended:
Van der Wiel vs J Welling, 1987