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Richard Rapport vs Dmitry Jakovenko
FIDE Grand Prix Geneva (2017), Geneva SUI, rd 3, Jul-08
Nimzo-Indian Defense: Romanishin Variation (E20)  ·  0-1
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Jul-08-17
Premium Chessgames Member
  whiteshark: Poor Rapport!
Jul-08-17  devere: 80.Rf1+?? loses.
Jul-08-17  goodevans: There are always folk who WRITE EVERYTHING IN CAPITALS or use multiple exclamation or question marks to emphasise their point. A profligate overuse of punctuation!!!!

The chess equivalent is to award "!!" to every good move and "??" to every poor one.

80.Rfl+ loses when other R moves keep to black working for the win. But as blunders go it's hardly obvious and a single "?" would seem rather more appropriate.

Jul-08-17
Premium Chessgames Member
  An Englishman: Good Afternoon: Interesting struggle of White's pawn center and Bishops vs. Black's mobility and Knights. Two questions. First, after 27...Nh5, why didn't White accept the pawn sacrifice? Second, could Black have won with 71...Rf2? It *appears* that White must play 72.Rxe3,Kxe3; 73.Bd5, but if he can win the g2 pawn, the White King is stuck in the wrong corner, isn't he?
Jul-08-17
Premium Chessgames Member
  ChessHigherCat: <An Englishman: Good Afternoon: Interesting struggle of White's pawn center and Bishops vs. Black's mobility and Knights. Two questions. First, after 27...Nh5, why didn't White accept the pawn sacrifice? >

I think he must have been afraid of 28. gxh6 Qh3 with the threat of Ng3 (forking the king and rook and attacking d4 three times)

<Second, could Black have won with 71...Rf2? It *appears* that White must play 72.Rxe3,Kxe3; 73.Bd5, but if he can win the g2 pawn, the White King is stuck in the wrong corner, isn't he?>

What about 71...Rf2 72.Bh3 covering f1? Then if black plays a waiting move like 72... Ra2, isn't 73. Rxe3 Kxe3, 74. Bxg2 a theoretical draw?

Jul-08-17
Premium Chessgames Member
  tamar: CHC <What about 71...Rf2 72.Bh3 covering f1? Then if black plays a waiting move like 72... Ra2, isn't 73. Rxe3 Kxe3, 74. Bxg2 a theoretical draw?>

No, it is a forced win for Black. That is what <An Englishman> was alluding to when he said White was in the wrong corner. White would like to have a dark square for his King in the corner so when he blocked a check with the rook with his bishop, it would set up a stalemate.

Here Black can just tempo with his rook winning the bishop.

after 74 Bxg2 Ra1+ 75 Kh2 Kf2 76 Bd5 Ra3 77 Be6 Ra6 78 Bd7 Rh6+ 79 Bh3


click for larger view

Jul-08-17
Premium Chessgames Member
  ChessHigherCat: : <tamar> Okay, thanks, I didn't know what he meant by the "wrong corner". So is the right honourable Englishman, Knight of the Orders of the Garter, Bath and Thistle, right that black could have won the game with 71...Rf2?
Jul-08-17
Premium Chessgames Member
  tamar: 72 Bh3 holds since King has to guard e3 and mate on f1 is covered.

if 72...Rd2 73 Bc8 Rb2 74 Bd7 Rb6 75 Rxe3+ Kxe3 76 Kxg2


click for larger view

Sacrifice works if King can capture, and not get trapped in the corner.

Jul-08-17
Premium Chessgames Member
  ChessHigherCat: I see, at least I found Bh3 but the sac would be bad in that position. White must have made some mistake after that, then, because in the game line 79. Bxg2 really was forced since if 79. Bd7 Rc7 80. Bf5 Rc5 threatening Rh5 & Rh1# and the bishop can't play g4 or g6 to prevent it, right?
Jul-09-17
Premium Chessgames Member
  alexmagnus: In the position before the blunder, white had only four drawing moves (Ra1, Rb1, Re7 and Re8).

R+N vs Rook is won in only 8% of positions, but one must never forget those 8% exist. Many assume it is kind of a self-playing draw. But of course it is more likely to end in a draw than R+B vs R.

Jul-09-17
Premium Chessgames Member
  ChessHigherCat: <alexmagnus: In the position before the blunder, white had only four drawing moves (Ra1, Rb1, Re7 and Re8).>

You guys seemed to have mastered all the mysteries of endgame technique! So those are the only 4 choices on move 80 that would have prevented this finish five moves later?: 85. Re1 Ng2 86. Rd1 Nh4 87. Rd3+ Ng3+ 88. Rxg3 (if Kh8 Rh7# or if Kf8 Rf2#)?

Jul-09-17
Premium Chessgames Member
  An Englishman: Good Afternoon: 71...Rf2; 72.Bh3! is a clever move to secure the draw. Good find, <tamar>. So it appears that Jakovenko did find the best chance of inducing a decisive mistake in a theoretical draw.
Jul-10-17  mqhelisi: i wonder if it was a coincidence or what i stumbled upon the posibility of a supposed quick win with 71...Rf2 as well thanks 72.Bh3 makes it very drawn i get the idea
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