Thanks, that's a good puzzle. I look forward to seeing the new puzzles you offer every Tuesday
Puzzle 4

Can you tell me opening name. I seen such positions by Caro kann & scotch. This look different if you have please post total game.
Thank you.

hmm, actually i just create such things!
so it´s not based on a game, but on an idea of the ´double check´ - tactic.
sorry!
Another tuesday, so here´s my fourth puzzle: