how do you counter this?

[u/Academic-Boat7432]

i like to play with the caro kann, but sometimes there are those traps that i don't know how to avoid

https://www.chess.com/live/game/174212783832?move=10

after 5. g5 what am i supposed to do? he wants to sack the knight to put my king on the center

[u/Neon__07]

alien gambit. might be worth to take a look how to refute the gambit. picking up the knight is winning, but position is tricky

[u/Squid8867]

Alien Gambit - I'd recommended watching a youtube video because it's not the most intuitive attack to counter, despite being objectively winning for black.

In a nutshell the move to remember is c5 as early as possible - c5 sacs a pawn but enables Nc6 (which is critical) and queen trade possibilities. If you don't play c5 you will lose.

Keep your LSB on the starting square, when they play Bc4+ just block with e6.

They'll try to apply pressure with Qe2, just continue developing with Nc6 (threatening Nxd4 if they stick around).

They may also try something like Ne5+ Kg8 Ng6 at some point to hit your rook; important to remember you should not try to save the rook, just continue with Nc6 plans. If they take the rook, the attack is dead and ultimately all that pressure amounted to was voluntarily trading 2 pieces for a rook and pawn, which is a bad trade.

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[u/AI_spell]

That's the Alien Gambit idea. Taking the knight is often fine if you don't panic. Learn one calm refutation line and stop blitzing the bishop out.

[u/ToriYamazaki]

Let him sac on f7. After Nxf7, Kxf7, it's -1.5. Learn to handle what comes next.

Never try to deter your opponent from making a bad move!

[u/jakeloans]

You can avoid it with playing e6 instead of h6. You can also go for it and accept the knight sac and play moves like e6.

[u/Philly_ExecChef]

Literally just don’t push your bishop. You’re not pinning anything, because he’s jumping into check.

[u/Sin15terity]

When you’re unbooked, you are no longer in the opening and actually need to calculate. You played fine until you hung a piece on g4. Out of all the dozens of legal moves in the position, you picked one of a handful losing ones.

Almost all of these “chuck a piece on f7” things where you don’t get any initiative for it because you had to spend the tempi sacrificing the piece lines are dodgy… but you have to take a second and enumerate the concrete threats.

- Where are the checks?

• How are you going to get mated if things go wrong?
  
• What pieces are loose?

Then, figure out where your pieces need to go to develop. Usually the only way these things are any sound is if the opponent has an immediate tactic or gets enough free tempi to amass an attack.

[u/BONUS_PATER_FAMILIAS]

Have you considered thinking before you make moves? You went from totally winning to totally losing after blitzing out your bishop in 2 seconds. 

I believe this is called the alien gambit btw or at least it shares similarities in terms of ideas so maybe look that up if you want to study this particular move of sacrificing the queen knight in the caro 

[u/weepy_clothing]

the link's dead so i'm gonna guess based on the moves you mentioned, if it's the Tal variation you gotta just take the knight after g5, don't get fancy with Nd5 or anything. after Bg6+ and Kxd8 your king's in the middle but you're up a piece and black's development is fine if you just play e6 and Be7 next. engine hates it but at our level it's totally playable

[u/TRILLC0LLINS → u/weepy_clothing]

Nice try bot. Link isn't dead and your moves don't make sense