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Alexander Khalifman vs Daniil Yuffa
Aeroflot Open (2016), Moscow RUS, rd 1, Mar-01
King's Indian Defense: Orthodox Variation. Bayonet Attack (E97)  ·  1/2-1/2

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 1 OF 2 ·  Later Kibitzing>
May-01-17
Premium Chessgames Member
  Plaskett: Wowsa!
May-01-17  Bruce Graham: Yes, <Plaskett> nice forced stalemate.
Oct-04-17
Premium Chessgames Member
  FSR: After 42...Rb7! Black easily holds a draw.
Oct-04-17  Magnus Kasparov: Amazing swindle. Khalifman must have been congratulating himself over having built up a winning position when Yuffa played the rook sacrifice
Oct-04-17
Premium Chessgames Member
  Dionysius1: 42...Rb7 drawsbecause 43 Rxb7 is stalemate and if the white rook moves off the b file, 43...Rxb4 is a draw (black is only 1 pawn down in a single rooks endgame with all pawns on same side of the board)
Oct-04-17  lost in space: Nice safe.
Oct-04-17
Premium Chessgames Member
  WorstPlayerEver: Rookie b7
Oct-04-17  Abdunnaser: Fantastic
Oct-04-17  diagonalley: easiest wednesday i can remember :-)
Oct-04-17  TheBish: Khalifman vs D Yuffa, 2016

Black to play (42...?) "Medium/Easy"

This one is easier than yesterday's! That is, after I realized it was Black's move! At first I thought, 2 pawns up, what's the deal here? Rc5 or Kd4, easy win. But with Black to play, obviously you're looking for a draw, and easiest way to achieve that is with a stalemate, if one is so lucky to find one. And then it's so obvious...

42...Rb7! forcing a draw after 43. Rxb7 (stalemate) or 43. Rc5 (or other lateral move to a safe square) Rxb4 and it's an easy draw with Black's doubled pawns holding White's 1 pawn advantage, as White is not likely to create a passed pawn, or if he does, it will become a theoretical draw, if it isn't already considered one.

Oct-04-17
Premium Chessgames Member
  al wazir: That was obvious.

But I can't help wondering what happens if white lets black have the b-♙. Of course black doesn't want to swap ♖s, but how does black stop the white ♔ from advancing into black territory?

I guess it can be done, but as white I would have played on a few more moves.

Oct-04-17  unferth: <al wazir> don't see any way for white to make progress if black just shuttles his rook on the 4th rank.
Oct-04-17  Cheapo by the Dozen: <unferth>,

White can put a protected rook on the 4th rank.

Of course, that does leave his h-pawn hanging on the 3rd. :)

Oct-04-17  Cheapo by the Dozen: Steps to solving puzzle:

1. Try to find a win. Fail conclusively.

2. Look for draw.

3. Aha!

Oct-04-17  ozmikey: When something like this is given as a "problem", you can spot it in two seconds. When something like this occurs over the board...
Oct-04-17
Premium Chessgames Member
  Sally Simpson:

I'm thinking it would have better to set it back here with Black to play.


click for larger view

This is where the trap was contrived. White's previous move was 41. g3-g4 setting the stalemate up.

The beauty of 41...Rc7 is that it has a threat. 42...Rc3+ winning the h3 pawn. This leads to a loss ending for Black but it was enough to lower Khalifman's guard making him think this is where he was going.

Oct-04-17  Walter Glattke: 43.Rc5 Rxb4 44.Kf3 +-
Draw not forced.
Oct-04-17
Premium Chessgames Member
  whiteshark: <Draw (is) not forced> but ultimately unavoidable.
Oct-04-17  makinavaja: Instead 42.R:b5, it would have won 42.Rc5, preparing f4 or h4, because the black rook has to remain too passive. There are no chances for active compensaton with two pawns less here. It is always necessary to pay attention until the opponent's resign!
Oct-04-17
Premium Chessgames Member
  Richard Taylor: Nice draw. The ending is a draw otherwise....
Oct-04-17  mel gibson: Wow - I didn't see that but I only looked for 10 seconds. LOL
Oct-04-17  jinkinson: Yeah, this seems like it was definitely easy enough to be a Monday problem-I got it in just a few seconds.
Oct-04-17  ChatGrognon: Great idea! (missed it)
Oct-04-17
Premium Chessgames Member
  Check It Out: It would be good experience to see if after 43.Rc5 Rxb4 one can hold the draw against a computer.
Oct-04-17  dumbgai: The draw should be quite easy after Rxb4. At some point if white wants to win he will need to move his pawns, and after exchanging down black will always reach a drawn endgame since his king is well placed.
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