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Wesley So vs Wei Yi
Reykjavik Open (2013)  ·  Sicilian Defense: Richter-Rauzer. Dragon Variation (B60)  ·  1-0
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Kibitzer's Corner
Feb-22-13  AndrewMD: First! Good that Wesley share the lead. Good morning po.
Feb-22-13  AndrewMD: Who's next opponent?
Feb-22-13  iking: a gooo thumping of this pure chinese prodigy ... he hits a boulder
Feb-22-13
Premium Chessgames Member
  chancho: W vs W and W won.
Feb-22-13  AndrewMD: We won!
Feb-22-13
Premium Chessgames Member
  Maatalkko: Let the record show that this was a really tense and exciting game to follow in real time. It was pretty accurately played until both players got low on time.

42...Re5? is the key mistake, leading Black towards a inferior rook endgames.

Also, let the record show that certain kibitzers - names aren't important - declared the game a "dead draw" around move 40. This shows how much Houdini's 0.00 evaluation can bias perceptions of an endgame. If you actually played through what Houdini was looking at, you saw a race of connected passed pawns, which is probably the sharpest type of position there is.

Houdini's 0.00 is a garbage eval in that situation; it just means that a possible promotion is so many ply away that Houdini can't see it and thus rates it as zero. A real eval would either be or , but barring a tablebase it is impossible to say which.

Feb-22-13  SugarDom: Or 0.0 eval if both players played perfectly to the end, which in an highly complex position is unlikely...
Feb-22-13  maelith: Maatalkko: <Also, let the record show that certain kibitzers - names aren't important - declared the game a "dead draw" around move 40. This shows how much Houdini's 0.00 evaluation can bias perceptions of an endgame. If you actually played through what Houdini was looking at, you saw a race of connected passed pawns, which is probably the sharpest type of position there is.

Houdini's 0.00 is a garbage eval in that situation; it just means that a possible promotion is so many ply away that Houdini can't see it and thus rates it as zero. A real eval would either be or , but barring a tablebase it is impossible to say which.>

I don't know about Houdini, but the programmer of stockfish told that his progam weakness is this kind of technical endgame of passed pawns. You are right we should not trust Houdini in this kind of technical endgame positions of passed pawns(specially rook passed pawns)..

Feb-22-13  SugarDom: There's a difference between a 0.0 eval and a "drawish" position.

In a highly complex position, the engine may judge it as 0.0, but the result is unlikely a draw.

Feb-22-13  crisP: Im just so happy for this win by Wesley!
Feb-23-13  dumbgai: It could be that the position really was equal but black blundered later. There are plenty of positions that are correctly evaluated as 0.00 but which are difficult to play. I haven't taken a close look yet so I don't know.
Feb-23-13  SugarDom: Computers nowadays are so good, i trust them more than humans...
Feb-27-13
Premium Chessgames Member
  Check It Out: <Maatallko> It's amazing that a harmless looking move as 42...Re5 could be the key mistake. Chess is tricky.

White's centralized king and active rook really took over the initiative.

Jan-01-14  erniecohen: I don't see the 0.0 eval as garbage. I'm very surprised that Black lost the endgame; it looks like a draw until at least move 46.

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