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Frank de la Paz Perdomo vs Yuniesky Quesada Perez
2nd UNAM Open Section I (2012), Mexico City MEX, rd 6, Nov-24
Sicilian Defense: Najdorf Variation. English Attack (B90)  ·  1-0

ANALYSIS [x]

FEN COPIED

Annotations by Stockfish (Computer).      [35437 more games annotated by Stockfish]

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sac: 36.Rg7+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
Oct-08-24  King.Arthur.Brazil: The king's line is 36. Rg7+ Kxg7 37. Rc6+ Kh7 38. Rxc4 Rxc4 39. Qe7+ Kg8 40. Qd8+ Kg7 41. Qxb6... or similarly 37. Rc6+ Kf7 38. Qf6+ Ke8 39. Qe6+ Kf8 40. Qxc8+ Kf7 41. Rxc4... Refusing the gift: 36... Kh8 37. Rf8+ Rxf8 38. Rf7+ Kg8 39. Qg7#.
Oct-08-24
Premium Chessgames Member
  offramp: The moves that end the game are like little Krakatoas.
Oct-08-24  mel gibson: I saw the first ply and that Black was exposed to discoveries on its Queen.

Stockfish 17 says:

36. Rg7+

(36. Rg7+ (1.Rg7+ Kxg7 2.Rf4+ Kh6 3.Rxc4 Rxc4 4.Qe3+ Rf4 5.Qxf4+ g5 6.Qf8+ Kh7 7.Qe7+ Kh6 8.bxa3 Rg6 9.Qe5 Rg7 10.Qg3 Rg6 11.Kb2 g4 12.h4 Rb6+ 13.Ka1 Re6 14.a4 Kg6 ) +9.86/46 604)

score for White + 9.86 depth 46.

Oct-08-24
Premium Chessgames Member
  takebackok: Nice tough Tuesday for this amateur, because of blacks mating threats. Think you also needed to see after 36. Rxg7+ Kh8 leads to 37. Rf8+ Rxf8 38. Rxg6+ and mate on g7 or h5. I went for 36. Rg7+ Kxg7 37. Rf4+ Kh6 38. Rxc4 and Q ck on e3 picking up R on b6 but lots of moves to look at!
Oct-08-24  saturn2: 36.Rg7 and win the Qc4 by a discovered attack. But it is not over yet. You have to see white gets another rook by a skewer. Not so easy.
Oct-08-24  daladno: I found, although not very quickly, the winning sequence of 36. Rxg7+ Kxg7 37.Rc6+ Kf8, but then rushed for an easy Q win, 38.Rxc4 � which SF says is only a draw after 38... axb2+, when Black manages to save his rooks. I've seen the 37. Rf4+ alternative but thought there was no difference. Sigh(
Oct-08-24  TheaN: I eh, played 36.Rxg6+ only considering 36....Kxf7 37.Rg7+ Kf8 38.Qe7#. Missed the lateral defense of g6. I'll see myself out.
Oct-08-24
Premium Chessgames Member
  chrisowen: I q it's brawn it's yap it's eh x jum Rg7+ it's aoc ji c it's duh it's axiom juggle it's back it's go it's wag Rg7+ duh it's x
Oct-08-24
Premium Chessgames Member
  chrisowen: Bug
Piping up it was wag Rg7+
Oct-08-24  Andrew Chapman: <I found, although not very quickly, the winning sequence of 36. Rxg7+ Kxg7 37.Rc6+ Kf8, but then rushed for an easy Q win, 38.Rxc4 � which SF says is only a draw after 38... axb2+, when Black manages to save his rooks. I've seen the 37. Rf4+ alternative but thought there was no difference. Sigh(> Likewise, that's instructive that Rf4+ is better if one has missed the back rank skewer idea. Point is that if Kf8 is played and white (mistakenly) takes the queen, then he no longer has Qe8+.
Oct-08-24  Rosbach: I played:
36. Rg7+ Kxg7 37. Rf4+ Kh7 38. Rxc4 Rxc4 39. Qe7+ Kg8 40. Qd8+ Kg7 41. Qxb6 Or 36. Rg7+ Kxg7 37. Rf4+ Kh6 38. Rxc4 Rxc4 39. Qe3+ Kg7 40. Qxb6 Yes, 37. Rc6+ was better and more efficient.

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