How to to interpret the analysis

Hi all,

this is my first post on lichess.org - please have mercy if i miss something.

I played a Dutch Stonewall (http://en.lichess.org/eT0PKOzc/black).

After i lost the game i clicked on "analysis" to see why i failed ;-)

I must admit that i don't really understand what the "Local computer evaluation" tells me.

For example: 25 ♖xb7 +1 ♕c8 +1.5

I guess this means that the rook beats b7 and this move is ranked +1 and the queen moves to c8. Intuitive, but what do these units (+1 .. +1.5) mean?

And what does #6 mean in: 29 ♖c7 +0.3 ♘d2 #6 ?

Perhaps someone can point me to some manual (AKA RTFM) where i can figure this out myself?

Thanks in advance for any hint.

Best regards, Karl

Hi,

The game is evaluated by a strong computer engine running in your browser. This is what the arrow indicates, the move it think is the best.

IF you ask for an analysis, that would be performed on another machine (more accurate)The idea is that positive value -- white has advantage. Also, +1 means advantage worth a pawn in equal position, and so on. #5 means that it sees a forced mate in 5, and so on. Blunders are move that lose a lot of advantage (or become losing), and there are other types of errors (mistakes or innaccuracy, where a move would have been better, but yours is not-so-disastrous). In case of these inaccuracy, the machine provides with an example line of best play.

This should cover it I think?

Have fun!

J

Also: local evaluation is fun, because you can try moves after the game, and it will tell you what it thinks it is worth :)

"...forced mate in 5"

Yep. It seems that was the point i missed.

"...yours is not-so-disastrous...should cover it I think"

Yes. Thanks for this advice.

Regards, Karl