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Etienne Bacrot vs Shakhriyar Mamedyarov
4th FIDE Grand Prix (2009), Nalchik RUS, rd 9, Apr-24
Sicilian Defense: Paulsen Variation (B46)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Given 2 times; par: 39 [what's this?]

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Kibitzer's Corner
Apr-24-09  kingsindian2006: he didnt hurry the attack, nice game by bacrot
Apr-24-09  whiteshark: Un tiens vaut mieux que deux tu l'auras.
Apr-24-09  MarbleSkull: Does Bacrot ever hurry an attack?
Apr-24-09  messachess: A very nice 4-move combination to end the game. Good for Bacrot.
Apr-24-09  Illogic: I like the Bd2-e1 maneuver. Two seemingly quiet bishop retreats but deadly!
Apr-25-09  kurtrichards: White's 10. e4 and 11. Qg4 are the key moves to victory. Kingside castling is denied to Black and therefore the Black king seeks haven in the queenside where it is subjected to attack by white's heavy and minor artilleries.
Apr-26-09
Premium Chessgames Member
  Mateo: 20...Kd8? was a blunder. Of course, Mamedyarov wanted to unpinn his Knight. But he allowed a killing pinn on the open file. After this blunder it is a forced win for White. Better was 20...Rc8 preparing Bc6.
Mar-09-13  wachter123680: white won quicker with 17. Bd2
Mar-09-13  wachter123680: but he realized that at 22. oh well. a win with even a blunder. guess it happens at tournas. Lige
Mar-09-13  fokers13: Qxa4 and white is losing.

Think before you speak.

Mar-09-13  Garech: Fantastic game from Bacrot; worthy of GOTD.

-Garech

Mar-20-14  Xeroxx: white using the bishops to get the advantage, then the knight to finish it off.
Dec-15-23  Brenin: 28 Rxd7, and if Qxd7 then 29 Rb8+ Bd8 30 Rxa8, Black is a piece down and still in deep trouble. If 20 ... Kxd7 then 29 Qd1+ is deadly, e.g. 29 ... Qd5 30 Nb6+winning the Q, or 29 ... Ke8 30 Rb8+ with mate. or 29 ... Kc7 30 Ba5+ Kc8 31 Nb6+, similar to the game line. It is remarkable how many of White's strongest moves were retreats: 14 Qd1, 17 Nc3, 20 Ba4, 23 Bd2, 24 Be1. He was able to sit back and watch Black's position weaken until it was time to strike with 28 Rxd7.
Dec-15-23  mel gibson: I chose the first ply within 15 seconds.

Stockfish 16 says:

8. Rxd7

(28. Rxd7 (1.Rxd7 Qxd7 2.Rb8+ Bd8 3.Rxa8 Qc6 4.Rb8 Qc7 5.Qb2 g5 6.Kf1 Rf8 7.Qb7 Qxb7 8.Rxb7 f5 9.Rxh7 Rf7 10.Rxf7 Kxf7 11.Nxc5 Bb6 12.Nxa6 Bd4 13.Nb4 Bxe5 14.h3 Ke8 15.Nc2 Kd7 16.Ne3 Kc6 17.Nxc4 Bd4 18.a4 Kd5 19.Nd2 Bc3 20.Nb3 Bxe1 21.Kxe1 Kd6 22.a5 Kc7 23.Ke2 Kb8 24.Kd2 f4 25.Kd3 Ka7 26.Kc4) +5.65/51 702)

score for White +5.65 depth 51.

When Black resigns it's mate in 12:

31. Nd5+ Ka7

(1. ... Ka7 2.Nxe7 Qc7 3.Ba5 Rd8 4.Qa4 Rb8 5.Rxb8 Qxe7 6.Bd8 Kxb8 7.Bxe7 Bb7 8.Bd6+ Ka7 9.Bxc5+ Kb8 10.Qd7 g5 11.Qd6+ Kc8 12.Bb6 h5 13.Qd8+) -M12/87 108

White wins _ mate in 12.

Dec-15-23  FM David H. Levin: My main calculation went 28.Rxd7 Kxd7 29.Qd1+ Kc8 30.Nb6+ Kc7 31.Ba5 Bb7 32.Nd5+ Kd7 33.Nxe7+ Kxe7 34.Rxb7+ Qxb7 35.Qd6+ Ke8 36.Qd8#.
Dec-15-23
Premium Chessgames Member
  scormus: Didn't quite make it, was expecting 28 Rxd7 Qxd7 and not 29 ... Kxd7? which leaving the K fatally exposed. Then I chose 29 Qd2+, thinking of the continuation ... Kc7 30 Qa5+.

Why is 29 Qd1+ better? The action on the d-file is the same, but it leaves a5 free for the bishop. If ... Kc8 30 Nb6+ Kc7, 31 Ba5 is a killer.

Dec-15-23  Mayankk: My line was 28 Rxd7 Qxd7 (28 ... Kxd7 seemed worse as it brings Black King right in the firing line) 29 Nb6 Qa7 (to guard the a8 Bishop) 30 Qa4+ Kf8 (preventing any casting possibilities) 31 Nxa8 Qxa8 32 Qd7 with ideas of 33 Rb7 and attacking the 7th rank.

Now the Black King can't move as it is guarding the e7 Bishop. Moving the Bishop just allows 33 Rb7 anyways. So we have 32 ... Qe8 33 Qxe8+ Kxe8 34 Rb8+ and Black has to let go of either its Bishop or Rook.

Dec-15-23
Premium Chessgames Member
  chrisowen: Gad wit quick rom jah it is Rxd7 abluff frazzled it is goof it is ace me bfg it is zag it is Rxd7 etc
Dec-15-23  stacase: 28.Rxd7 Kxd7 ???
29.Qd1+ Kc8
30.Nb6+ Kb7
31.Nd5+ 1-0

28 was pretty obvious for White as it's a puzzle, Black's response didn't make sense. The rest nearly played itself.

Dec-15-23
Premium Chessgames Member
  PawnSac: That works nicely too <David>. Apparently (and mistakenly) black thought he had time to tuck his king in "safely" at a7. OOPS!

The alternative is ..Qxd7 but that drops the Ba8 to Rb8+ (which of course is losing), so by default black ops for Kx hoping to wiggle out of it.

Dec-15-23  FM David H. Levin: Given that Black's king moved earlier, 28.Rxd7 Qxd7 29.Rb8+ Bd8 30.Bh4 could not be answered by 30...O-O. However, the prospective solver doesn't know whether Black could still castle. Maybe puzzles in which at least one side's king is on its original square should be accompanied by a statement of whether the applicable side(s) can castle.

(After posting this originally, I realized that 30.Bh4 could be answered by 30...Qd4+. So, this isn't the ideal puzzle to support my suggestion.)

Dec-15-23
Premium Chessgames Member
  takebackok: White is completely kicking it with both rooks eyeing big gains. Black playing without the h8 rook so it's minus 5 at least. Time is right for 28 Rxd7 when if king or queen takeback both lose quick black is paralyzed.

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