Ever play a game, and think "Masterpiece"...

Then flip the computer analysis engine on, and it slaps you with all sorts of blunders and inaccuracies like 1/4 of your moves are wrong...

However in spite of saying you are a horribly moronic player that makes all sorts of errors, you never relinquish a strong advantage the entire game.

The engine said I made 3 blunders this game. After the 2nd and 3rd blunders I maintained about plus a rook advantage. So blunders like these I'm not going to fry my brain to figure out why it's a blunder when I'm still very much playing the winning moves.

However the first blunder to me, just makes no sense.

Then you delve into some stuff the call a blunder. The move I'm talking about is 6. dxc4 I mean ya, it helps black get the bishop out, but keep in mind I want the d file open for after I castle. I'll admit I had better moves, and it's probably a mistake. The computer instead is like just play 6g4!! a move I never would have considered playing. And it only offers the 1 move, not a line after it... So it's like this crazy looking move is good! Just trust me, not gonna analyze that for you any deeper though.

Thoughts on this game?

Would you have played 6.g4?

Yes 6 g4! punishes the early queen's sortie. After you let his bishop out, your advantage vanishes until he makes some more mistakes.

> The computer instead is like just play 6g4!! a move I never would have considered playing. And it only offers the 1 move, not a line after it... So it's like this crazy looking move is good! Just trust me, not gonna analyze that for you any deeper though.

Yeah, when the computer line is just one move it means the move failed high: the evaluation is just a lower bound, and analysis was stopped before it could establish an exact score.

The other possibility is that the move failed low: maybe black had some great tactical shot at the end of his ingenious queen sacrifice, but the only thing we know is that the evaluation is no better than +5.2 for white.

So. The evaluation is either no more than +5.2 or no less than +5.2 and the only way to find out is to run Stockfish for longer (Stockfish's raw output would have at least told you which, but I don't think Lichess shows this information even during analysis - you just have to deduce it from seeing whether the score went up or down).

Sometimes, until i check the analysis. =)

A blunder does not necessarily LOSE a piece/pawn..., missing the chance to WIN something is also a blunder @lurarose. Here we have a very beautiful example for that!

7.g4!! and black faces big problems to secure his queen, just count the possible flight squares for the queen. The pawn is untouchable e.g. 7.g4 Qxg4 8.Rg1 Qh3 9.Rg3 Qh5 10.Rg5 Qh3 11.Bf1 Qh6 12.Rxc5 - a beautiful variation!
Best option is maybe 8.g4 Qg6 9.Bd3 f5 but that doesn't look good for black either.