How many computers see a winning for black after 21.Nxc7....

[pichy]

How many computers see a winning for black after giving up the rook 21. Nxc7..... Check the game Beliavsky vs Nakamura 0-1

http://www.nhchess.com/PGNViewer/live.html

I Love the title five experienced GM versus five talented young rising stars:

http://www.chessbase.com/newsdetail.asp?newsid=5706
PS: I believe that GM Nakamura should also be in the older side:roll:

[Vinvin]

Are you sure it's winning for black after 21. Nxc7 ?

How many computers see a winning for black after giving up the rook 21. Nxc7..... Check the game Beliavsky vs Nakamura 0-1

[pichy]

Are you sure it's winning for black after 21. Nxc7 ?

How many computers see a winning for black after giving up the rook 21. Nxc7..... Check the game Beliavsky vs Nakamura 0-1

That is the point a computer does not see an immediate winning after move 21 NXc7 and will never allowed to give the rook away, since it is not within its horizon. Rybka 3 with 16 cores will not sacrifice the rook because computer are like a cancer, they like to beat you little buy little until they destroy you. That is the reason you can NOT count a GM out when they are behind in material.

[pichy]

Are you sure it's winning for black after 21. Nxc7 ?

How many computers see a winning for black after giving up the rook 21. Nxc7..... Check the game Beliavsky vs Nakamura 0-1

That is the point a computer does not see an immediate winning after move 21 NXc7 and will never allowed to give the rook away, since it is not within its horizon. Rybka 3 with 16 cores will not sacrifice the rook because computer are like a cancer, they like to beat you little buy little until they destroy you. That is the reason you can NOT count a GM out when they are behind in material.

It is not an automatic win for black, Rybka3 found after a few moves later that white can still draw. GM Nakamura was not forced to give the rook away, he simply sacrificed it

[pichy]

[quote="pichy"]How many computers see a winning for black after giving up the rook 21. Nxc7..... Check the game Beliavsky vs Nakamura 0-1.

Usually computer are very materialistic and do NOT give away valuable pieces, but after 2 hours on my slow P.C. Rybka3 saw that this rook sacrifice was winning for black.
http://www.chessbase.com/newsdetail.asp?newsid=5711

This brillian rook sacrifice by GM Nakamura the best game of this tournament so far, was played with HN being sick