Ever play Center Counter before? :) I have been playing it since I play chess again back 3-4 years ago. But that does not make me a master of this opening but I do feel attach to this opening. Many grandmasters play this as black such GM Michael Adam, GM Ian Rogers, and give new ideas in this opening which is known for its solid as such in Caro Kahn. At the very 1st move, black put a direct threat to white 1. e4 d5. Note that, any other than 2.exd5 for white does not give an advantage for white as the 1st mover.
2. exd5 ......
After this move black have 2 main ideas to reply. 1st -> 2. Qxd5 (Center Counter) and 2nd -> 2. Nf6 (Scandinavian Defence). The later is more tactical with many gambits which if white treat lightly maybe lethal. The 1st is many GM favourite when armour with this opening. It is obvious the solid move for black.
2. ...... Qxd5
3. Nc3 ....... threat the black queen. This is the obvious direct tactical move. Others, simply unuseful or lack of threat.
Now, black have many moves to position the black queen. The most popular one is at a5 square. Others, Qd6 and Qd8 still going through the experiment and theories are evolving. Back to the topic, 'Patzer' variation dubbed by James Plaskett is actually Mieses Kotroc Gambit which seem so typical blunder or lack of tempos(!!). But to tell the truth, white never get to gain real advantage or mating attack although white play solidly. At the end I will share it why.
3. ...... Qe5+ 
4. Be2 c6
5. Nf3 Qc7
6. O-O Bf5
7. e4 f6
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Although white obviously have 2 tempos but it never get the advantage due to solidity of the structure as such achieve in Caro-Kahn. Below is the diagram of black final structure in this opening. ( ;) although it can be varied.) I would analogy this opening as "I want to see your moves 1st before I act". For further review of the opening, please see:
THE SCANDINAVIAN DEFENSE by James Plaskett.
