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Sk Nasir Ahmed vs Ziaur Rahman
Bangladesh Championship (2006), Dhaka BAN, rd 5, Mar-14
Sicilian Defense: Paulsen Variation (B46)  ·  0-1
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 4 OF 4 ·  Later Kibitzing>
May-29-07  Duque Roquero: <Sometimes I wonder why a strong player doesn't resign rather than playing a move like 27.Kxh1 which leads to forced mate in 2..> 27. ♔g3 leads to forced mate in 2 as well.
May-29-07
Premium Chessgames Member
  kevin86: I think I see a flaw in one of the variations: 27 ♔g3 ♕xh3+ 28 gxh3 h4+ is nOT mate because of ♔g4 How does black win?
May-29-07  Crowaholic: A missed opportunity for a similiar and very interesting (quality) sacrifice was discovered by user Shams in S Kriventsov vs J Shahade, 2003.

<kevin86: I think I see a flaw in one of the variations>

I tried that line too but nothing came of it. The trick is that Black plays 27. ..Qg4+, not ..Qxh3+. Now after 28. hxg4 (only move) h4#, there is no 29. Kg4 because g4 is blocked by a friendly pawn.

May-29-07  goodevans: <Duque Roquero: 27. Kg3 leads to forced mate in 2 as well.> Yeah, but not as obvious as for 27 Kxh1 so I think 27 Kg3 might have been worth a punt for white. After all, if Kramnik can overlook a simple mate in 1 (vs. Deep Fritz) then lesser mortals are capable of missing more complex ones.
May-29-07
Premium Chessgames Member
  playground player: Very obliging of Black to play Kxh1! Wish my opponents would make moves like that. Kg3 gave me tons of trouble. I did not find Qg4+ leading to mate; but what's wrong with Qg6?
May-29-07  waddayaplay: I completely missed it, instead trying to get Qxh3 to work.
May-29-07  siu02jm: <kevin86: I think I see a flaw in one of the variations: 27 Kg3 Qxh3+ 28 gxh3 h4+ is nOT mate because of Kg4 How does black win?> not 27..Qh3, the key is Qg4!!
May-29-07  siu02jm: <goodevans: <Duque Roquero: 27. Kg3 leads to forced mate in 2 as well.> Yeah, but not as obvious as for 27 Kxh1 so I think 27 Kg3 might have been worth a punt for white. After all, if Kramnik can overlook a simple mate in 1 (vs. Deep Fritz) then lesser mortals are capable of missing more complex ones.>

Same here, I ruled out Kxh1 as immediately losing. You are right there is something serene about Qg4+ eventhough its a mate in 2. Could be argued that the opponent didn't want the black to have a flashy finish. Imagine if one regigns in the middle of 'immortal game'.

May-29-07  LIFE Master AJ: I was going to say that this was way too dificult for a Tuesday puzzle, but the official CG post (see above) already covered that.
May-29-07  LIFE Master AJ: "Problem of The Day" (POTD)
Tuesday; May 29th, 2007.
(Corrected gamescore.)


click for larger view

White: Kh2, Qc5, Be3, Rb6; pawns - a2, c2, c4, f2, g2, & h3. Black: Kf7, Qe6, Bb7, Rd1; pawns - a6, e5, f6, g7, & h5.

Black to move. (26... ???)

May-29-07  Kleve: Yeah... I saw Rh1+, an easy enough mating pattern if Kxh1. But I couldn't find the winning line after Kh3 for the life of me!

Qg4+!! Fantastic. Thanks for your analysis, all!

May-29-07  schnarre: Rh1+ was obvious enough, though Qg4+! took longer. A nice finish!
May-29-07  Tactic101: Seen this sort of puzzle before, so the answer came instantly.
May-29-07  iceman77: The bishop on b7 prevented the pawn to take on the queen on h3. A fairly easy one but one can totally miss it.
May-29-07  Fezzik: Now that the game score has been corrected, 27...Qg4! (after 27.Kg3!) is not only the prettiest way to win, but the only way to mate!

The corrected puzzle is hard enough to warrant a Thursday slot, but I was happy enough to see it today. Maybe this week will be full of tough puzzles!

May-29-07
Premium Chessgames Member
  Beancounter: Did the editor wake up with a toothache this morning? This is a tuesday!!
May-29-07
Premium Chessgames Member
  fm avari viraf: Ziaur Rahman, the first GM of Bangladesh, finishes off with one of the prettiest combinations. Here, he first sacrifices his Rook & when grabbed White is mated in two & if the White King moves to g3 then the stunning Queen sac comes 27...Qg4+ 28.hxg4 h4#
May-29-07
Premium Chessgames Member
  patzer2: The daily puzzle solution 26...Rh1! is a decoy which allows the Black Queen to exploit the pin and force mate-in-three after 27. Kxh1 Qxh3+ 28. Kg1 Qxg2#.
May-29-07
Premium Chessgames Member
  patzer2: Of course as fm avari viraf notes above the more stunning decoy occurs after 27. Kg3 <Qg4+!> 28. hxg4 h4#.
May-29-07  Ashram64: 26..Rh1+ 27. Kg6 Rxh3+ 28.gxh3 Qg4+ 29.Kh2 Qg2#

so the king has nowhere to run

May-29-07
Premium Chessgames Member
  YouRang: <Ashram64: 26..Rh1+ 27. Kg6 Rxh3+ 28.gxh3 Qg4+ 29.Kh2 Qg2# so the king has nowhere to run >

(NOTE: You meant 27. Kg3; not Kg6)

But this doesn't work, I'm afraid. Instead of 29. Kh2??, white has 29. hxg4 . I'm pretty sure that 27...Qg4! is the only move that wins for black.

May-30-07
Premium Chessgames Member
  kevin86: Thanks for the solution mentioned-with Qg4+. Funny,I was trying a rook sac on h3-followed by Qg4+,but a pawn still remains on guard on g4. With the queen move first,the pawn prevents the king's escape to g4 after h4#
Jun-13-07  alimuzzaman: <fm avari viraf: Ziaur Rahman, the first GM of Bangladesh> Just for the information: Ziaur Rahman is the second of the 4 GMs of Bangladesh. Niaz Morshed was the First one and was also first in the Indian sub-continent.
Oct-25-09  abstract: 25 ... Rd1 is the winning move as it yields to series of force moves and if 27 kg3 then 27...h4+ 28.Kxh4 g5+ 29.Kh5 Bf3+ 30.gxf3 Rxh3#)

some good quality chess !!

Nov-01-10  sevenseaman: Till Zia hits White deep in the underbelly, it all looks like a routine drudge.

27. Kxh1 in lieu of resignation is a bit thick, one would say.

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