10952 Players currently online!
Man vs. Machine - good luck!
Turn-based games at any time!
Vote for the best move to win!
Do you have what it takes?
Sharpen your tactical vision!
Get advice and game insights!
Learn from top players & pros!
View millions of master games!
Your virtual chess coach!
Perfect your opening moves!
Test your skills vs. computer!
Find the right private coach!
Can you solve it each day?
Bring it all together!
Beginners, start here!
Make friends & play team games!
News from the world of chess!
Search all Chess.com members!
Find local clubs & events!
Who's the best of your friends?
Read what members are saying!
Hi everybody, my first post here. I ran a game that I finished today through the site computer analysis feature, and I noticed something I don't quite understand: the game score jumped from +6 to + 82 after a move by black that was not considered a mistake or a blunder. In fact the position was obviously lost before that move, but the computer just realized it then?
What am I missing here?
It must have reached its search depth.
Say it looks 10 moves ahead and there is an unstoppable mate in 11. It may know you are well ahead but play a move and it now see your opponent can't stop mate.
That's a very basic explanation and I'm not fully sure how it works but I bet that's why.
It was something like this: the black bishop had a choice to take either the white pawn that was one square short of promoting or the white rook. If it takes the rook, pawn promotes on the next move and it's a queen vs. bishop ending. If it takes the pawn (which actually happened), the white rook then takes the white bishop and it's a rook vs. king and 2 pawns ending. For some reason before the bishop made its choice it was a +6, and after that it jumped to an 82.
"Melik & Me with Grandmaster Melik Khachiyan and Brother Josh!"
If Fischer would played Karpov for the World Champion, who would win?
by varelse1 3 minutes ago
winning on time....ethical. ..??
by hugofianchetto 3 minutes ago
What is your favorite chess quote?
by Brendanzeros 6 minutes ago
Post your best comeback from an absolute losing positon.
by AmishHacker 6 minutes ago
7/29/2014 - Full House
by nguyenxuanhien 7 minutes ago
Who is more physically attractive
by ielosubmarine 14 minutes ago
Feature re Resignation
by ielosubmarine 15 minutes ago
Help, I can't improve. Any tips?
by Thetrouncer 16 minutes ago
What do I do if there are noisy people around my game?
by pelly13 16 minutes ago
What animal would make the best chess player?
by colinsaul 20 minutes ago
Why Join | Chess Topics |
Help & Support |
© 2014 Chess.com
• Chess - English
We are working hard to make Chess.com available in over 70 languages. Check back over the year as we develop the technology to add more, and we will try our best to notify you when your language is ready for translating!