Like; what are they?
I understand them. I dont mean that.
I basically totally get Inaccuracies but Mistakes/Blunders..not sure which is which and what exactly the difference is.
I mean; okay in a game I get 3 Inaccuracies 0 Mistakes and 3 Blunders. Doesnt seem possible to make a blunder but you made no mistakes.
Blunder = You had a piece you could take but you didnt? Or moved a piece in a position where its free? Or its Blender except with a U?
Inaccuracy means that you tried to capture an opposing piece but you missed.
@Chiksan Freaking chess pieces are slippery. Sometimes it happens.
In lichess is plain mathematics:
Let’s say a deviation of >0.5, >1, >2 of your move compared to the engine proposal after a short analysis (few seconds + cache).
Hmmm. Sorry, Ya'll are making this WAY too difficult. Not understanding my question I guess.
Certainly wasnt looking for a equation to find my answer lol.
Lets try again:
I want to know
What is considered a Mistake.
What is considered a Blunder.
A example of each or something.
Example: here my only „mistake“ in this game was my last move after which my opponent resigned. I didn‘t go for the weird mate in 13 which no human ever calculates. It‘s only maths in lichess - a deviation > 1 - I was lucky that it wasn’t considered a blunder! :D
lichess.org/wqJVoTow/So, mathematics doesn‘t equal RL necessarily.
Let's translate numbers into words:
Inaccuracy:
You made a move that cause you to lose a slight advantage or to worsen slightly from an even position. Typically, inaccuracies that SF detects in the opening are not so important and really confusing so they shouldn't be the top of your concern for now.
Mistake:
You made a move that cause your position to worsen significantly although not immediately losing (losing a minor piece, allowing strong passed pawns, etc) or you were not able to convert to winning game (missed a tactic to win a minor piece, missed a mate in x no. of moves, missed a series of exchange that lead to winning endgame...)
Blunder:
You made a move that amounts to losing the game instantly (lost a major piece, forced mate, etc) or a move that allows opponent to escape from a totally losing position to say even or slightly worse.
The caveat is that if you're winning completely, the computer doesn't recognise your "mistakes" where you don't find the best combination of moves as the evaluation changes little.
Whether a move is an inaccuracy, mistake, or blunder, is determined by the change in engine evaluation score:
lichess.org/qa/75/how-are-these-determined-blunder-mistake-and-inaccuracy@Sarg0n After Qxf7 it's still #21 mind you, only it takes a bit longer for the engine to find it.
In this case it's only marked a mistake because the analysis is limited to save computational resources.
