I don't know if it is the first blunder, but I'd say move 7 for white was a blunder. Why not 7. Bxf7 and force the black king to move, and then follow it up with 8. Bh5 to get a knight.
Be on lookout: see the blunders and correct it.
Sort:
As I see it:
- 11. Ng6+?? { pointless knight sacrifice }
- 14. Bxg5?? { pointless bishop sacrifice }
- 16... Bxh2+?? { pointless bishop sacrifice }
The rule: find those blunders and write the best move.
Here's the game.
This game is for training. It didn't happened, so no people maked blunders.