8419 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!
IM pfren
Here is an extremely difficult endgame study, made by the Yugoslav composer Dragutin Djaja. White to play and draw. The solution is amazing- even computers take a very long time to discover white's idea.
Ceinlys
0mg, I'm stuck after 3...Ra4, xD Wow :]
asdfv
wtf, how is that stalemate
Justified08
:]
unityjeauxx
why doesn't white just play Nxd4 followed by Nc2 to stop the pawn? Seems like that would be a winning position although I haven't analyzed it thoroughly
2.Nxd4 a2 3.Nc2 loses at once to 3...Rb2.
musiclife
Wow, pretty sweet how the Knight guards the f5 square which indirectly keeps the g5 square safe. Now I see why the K returns to h2 after kicking the Rh4+ w/ Kg3.
mrguy888
Wow. Crazy stuff.
shashi85
how is it draw... please somebody tell me....
Black can play better in that last variation: 8...Kc7, when the a7 pawn is lost. However, white can draw with either 9.Rg6 or the surprising 9.Rb1 (all other rook moves lose). That said, it's extremely difficult to handle the white position without aid (online tablebases, that is). Mind you that when the study was composed, there were no computers, and no online tablebases.
You can check the position at the usual place:
http://www.k4it.de/index.php?topic=egtb&lang=en
The solution given by the composer is a clear draw, as well as an "easy" one- provided of course that someone finds 4.Rg8!! and 5.Nh6!!, which pop up at the Houdini moves list after just a couple of hours thought...
PrawnEatsPrawn
I thought that maybe you were mistaken but Houdini seems to have no idea what is going on. Even when led up to the perpetual position, the latest Hoiudini on extreme hardware doesn't grasp the concept (I didn't bother to run for hours).
Thanks for showing this interesting position.
p.s. Although Houdini finds choumicha's draw in less than two seconds.
Houdini cannot compute the other draw, unless used under an UI which is using tablebases. It just gives an evaluation based on the material balance on the board, and the casual.
As for the engine's ability to find the composer's solution... look at these:
http://www.chessbase.com/newsdetail.asp?newsid=5634
http://www.chessbase.com/newsdetail.asp?newsid=5695
Of course the time mentioned is for 5.Nh6 alone, not for solving the whole study.
Your post clearly shows the benefits of letting more than one engine take a look at tricky positions.
Stockfish found the (a) solution fairly quickly: depth 32 in 150 seconds.
White threatens checking all the way from g8 to g1, and Black has nowhere to hide without allowing the a-pawn to queen.
marcofuics
a question: could white win the game?
RoffleMyWafflez
Way over my head.I got the first two moves just by inituitively trying to stir up counterplay, but wasn't able to see the perpetual.
CHCL
Nice.
p-wnfall7
kewl..
warrior689
wow!!!!!
Would it help to bring a mirror to a chess game?
by reflectivist 25 minutes ago
Unfair checkmate hint?
by Doggy_Style 31 minutes ago
NEW TITLE IN CHESS!
by chasm1995 32 minutes ago
Please analyze this game for me!
by jonnin 32 minutes ago
Jobs on Chess.com
by jaguar311 32 minutes ago
Member Analysis Auditions
by Mr_Norm 33 minutes ago
Resigned
by ARTCHESS1 33 minutes ago
Loss by Mate vs. Loss by Resignation
by capaz2 33 minutes ago
Ponziani Opening
by Schevenadorf 35 minutes ago
Scotch Opening w/ Knight Exchange
by Schevenadorf 36 minutes ago