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Leinier Dominguez-Perez vs Erling Mortensen
Politiken Cup 24th 2002  ·  Sicilian Defense: Paulsen. Bastrikov Variation English Attack (B48)  ·  1-0


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sac: 28.Rh8+ PGN: download | view Help: general | java-troubleshooting

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Kibitzer's Corner
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May-07-05
Premium Chessgames Member
  Gregor Samsa Mendel: 27...Rf8 loses in a very flashy way to 28 Rh8+ Kxh8 29 Qh6+ Kg8 30 Qxg7#.
May-07-05   mynameisrandy: Ah, so close. Everything but the final move...
May-07-05   RookFile: Ah, that's a little trick.....

27.... Rf8 28. Rh8+ Kxh8 29 Qh6
and lights out.

May-07-05   aw1988: Sorry, I forgot the king could move. I had formed a mental picture of the king being unable to move on the e-file, but that copied itself into other ideas.
May-07-05   ntc: I'm having trouble seeing the forced win here. How does white finish the job?
May-07-05   ntc: Nevermind. I forgot about the knight... I need a nap.
May-07-05   Madman99X: It looks like 25... hxg6 starts things down the dark path (so to speak) for black. Perhaps 25... Nxg6 is better? I don't have the energy to analyze it tonight, but it looks better.
May-07-05   Ezzy: I thought I'd solved this quite quickly, After 29...g5 30 Rh1 mate. Then when I looked at the solution - Shock, horror!! I saw that the rook could swoop to h6, I forgot that the black pawn on d6 was no longer there!!! Will have to be more careful! - Even though as black, I would not of seen the combination coming after 25..hxg6?? in general terms it is a bad move anyway. 25..hxg6?? Even as an amateur, I do not see the logic of this move. It weakens the kings defences, gives him doubled pawns and opens up the h file for whites rook! What did he fear after 25...Nxg6. This is a perfectly safe move!
May-07-05
Premium Chessgames Member
  jahhaj: Easiest Saturday puzzle ever? Nice forced sequence, none of the ideas too hard to spot. No Black counterplay.

This week has been a bit easy, I'm looking forward to getting my first ever Sunday puzzle.

May-07-05
Premium Chessgames Member
  kevin86: I answered the first few moves-owing mostly to this week's theme of rook sacs. This was somewhat simple but with a few spurs for we chess-blinded people.
May-07-05
Premium Chessgames Member
  jahhaj: <Ezzy> Not sure but 26. Qf5 looks strong. White's threatening 27. Qe6 Kh8 28. Qxg6 and 26... Bf8 allows 27. Qd5+.

In general terms 25... Nxg6 takes a piece away from the centre and opens the diagonal for white's bishop, but obviously if black had seen the rook sac he would have preferred it.

May-07-05   thorndeux: Whew! I got it until Qf7, but I didn't see the Ra6 as defensive resource. So I thought mate was not avoidable but didn't see g5 - luckily white still get's a piece and a winning position in the end, so I can pretend i saw that, too :)
May-07-05   Helloween: I think that 29...Qd8 is the stiffest defence. The idea is 30.Rxd8 Rxd8 31.Qxe7 Rd1 followed by 32...Rf6 and 33...Rff1. White can't save the Knight, but the Queen and extra pawns on the Queenside overpower the 2 Black Rooks in the ensuing ending, for instance: 29...Qd8 30.Rxd8 Rxd8 31.Qxe7 Rd1 32.Qxb4 Rf6 33.Qxa4 Rff1 34.b4 Rxc1+ 35.Kb2 Rb1+ 36.Kc3 Kh7 37.Kc4 g5 38.c3(38.b5? Rf2 and Black already has enough counterplay to draw.) A little precision would be required on White's part.
May-07-05   queensknight: Got Bxe5...but couldn't get the continuation from there...:(
May-07-05   prs: Funny, I was thinking in a different direction: if one could remove the Knight from e5, the win would have been a checkmate, for example: 27. Nd3 (or Rd3, for that matter) N:d3 28. Rh8+ K:h8 29. Qh6+ Kg8 30. Qg7#.

Most unfortunately, 27. ... N:d3 isn't forced in either case. However, once I saw that pattern, I couldn't see anything else.

May-07-05
Premium Chessgames Member
  YouRang: I got it - at least as far as Qf7 with double threat of Rh1# and Qxe8+.

Again, knowing that there is a 'move and win' situation makes me look for wild moves like Rh8+!, which I probably would never have found in a real game.

May-07-05   Backward Development: 27.Rd3 Rf8! =

I thought about Rd3 but overlooked Rf8. Good puzzle, very forcing.

May-07-05   trumbull0042: <Again, knowing that there is a 'move and win' situation makes me look for wild moves like Rh8+!, which I probably would never have found in a real game.> I think it's interesting that you say that. But I think studying these move-and-win puzzles brings several benefits.

1. They encourage you to look for winning combinations when you're playing in real games.

2. They encourage you to look at non-obvious moves and moves that, upon first examination, seem like giveaways.

3. They improve your calculating skills (I try to refrain from using a board when solving these puzzles, though sometimes it's a necessary step before doing calculations in your head).

4. They encourage you to sit down and think hard about the position because you know there's light at the end of the tunnel.

5. They show you original chess.

May-07-05
Premium Chessgames Member
  savuflorin1983: I missed the part with "to move and win", therefore I searched some more normal winning strategies. Here's what I found: 27. Qf1 Rc6 28. Qh3 Bf6 29. Bxe5 dxe5 [if 29...Bxe5 then 30. Qh8+ Kf7 31. Rf1+] Rd7. Of course, this is also a clear win, but the one found is admirable as an aestehetic achievement. I couldn't in a thousand years have found it on board! Well done!
May-07-05
Premium Chessgames Member
  Richard Taylor: I got everything except 29 .... g5 as a defence -

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahhhhhhhhhhhhhhhh- hhhhhh!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

<BLAAAAAAST and BOTHER !!!!!> I know it looked too easy - oh well, got the <main idea>

chessgames.com win again!!!!

May-07-05
Premium Chessgames Member
  Richard Taylor: <trumbull0042> Great points you make above my head - I never use a board except I used it partly - I mean I used the board chessgames provide -when I was looking at the Kasparov-Topalov (the great game) -as I didn't see that he (Topalov) was to play Kb5 I thnk it was - but from there I tried to work it all out in my noggin - and that is mostly what I do - but I try variations on the little board after I see the solution so to speak - we aren't really looking at a chess problem per se ..it's more like as if we were playing a game of chess - I find that moves such as Rh8 are what I look for very quickly (although here I first thought that Rdf1 might be the move to cut off the King's room) - in fact I thought of it as I was doing something else - washing my hands or something - the main idea is to get Rh8+ and then Qf7 - in my own defence if I had seen g5 I would have seen the fork on d7 - learnt all that from Fred Reinfeld's 'Winning Chess' years ago - BUT - I should rigorously practice - LOOKING for DEFENCES to what appear to be fairly quick or easy "wins" (are they wins? - that should be our question)..lol that is - as the attacker - we have to "walk around the board" and think like the opponent - that is one point you omitted - and I confess it's my own weakness and probably that of many others here...

Otherwise they are very good points you made..


May-11-05
Premium Chessgames Member
  patzer2: <Madman...>, you are correct that 25...hxg6? was the losing blunder. After 25...Nxg6! 26. Qg4 Bc4!=, Black should be able to hold the position.

After 25...hxg6? 26. Bxa6! White forces a winning double attack:

25. hxg6 hxg6? (Black could have held with 25... Nxg6! 26. Qg4 Bc4! =) 26. Bxa6! Rxa6 27. Bxe5 dxe5 28. Rh8+ Kxh8 29. Qf7 g5 [putting up more resistance, as noted by <Helloween>, but still losing, is 29... Qd8 30. Rxd8 Rxd8 31. Qxe7 Rd1 32. Qxb4 Rf6 (32... Kh7 33. b3 g5 (33... a3 34. c4 ) 34. Qe7 ) 33. Qxa4 ] 30. Qxe8+ (a mistake and apparently turning the tables and losing for White is 30. Rh1+? Rh6! 31. Qxe8+ Kh7! 32. Rd1 Rh2 33. Qxa4 Qc4 34. Re1 g4! ) 30... Kh7 31. Rd7 1-0.

May-12-05
Premium Chessgames Member
  Peligroso Patzer: After 29. Qf7, Black has a surprising resource in 29. ... Qd8!! For example, 30. Rxd8 Rxd8 31. Qxe7 Rd1 and Black will win the Knight with a dynamically balanced position.
May-13-05
Premium Chessgames Member
  patzer2: <Peligroso Patzer> I've got to admit the position is more complex than I first realized after 29...Qd8! 30. Rxd8 Rxd8 31. Qxe7 Rd1 32. Qxb4. The computer at first shows it as a clear win for White, but now I'm not so sure that's correct. Certainly, the line gives Black practical drawing chances, despite the computer's initial optimistic evalution of the line as a clear win for White.

One long look with the computer came up as a draw after:

29... Qd8! 30. Rxd8 Rxd8 31. Qxe7 Rd1 32. Qxb4 Rf6! (32... Kh7? 33. b3 g5 (33... a3 34. c4) 34. Qe7 ) 33. Qxa4 (My computer at this point has it as a 3.00+ evaluation for White at this point, but maintaining that plus is difficult.) 33...Rff1 34. b4 Rxc1+ 35. Kb2 Kh7 36. c3 Rb1+ 37. Kc2 Rbc1+ 38. Kd2 Kh6 39. b5 Rb1 40. Qa6 Kg5 41. a4 Kf4 42. Kd3 Rf3+ 43. Kc4 g5 44. Qe6 Ra1 45. b6 Rxa4+ 46. Kb5 Ra1 47. Qf5+ Ke3 48. Qxe5 Rb1+ 49. Kc5 Rf6 50. Qxg5+ Kxe4 51. Qd5+ Kf4 52. Qd2+ Kg4 53. Qg2+ Kf4 54. Qf2+ Kg4 55. Qd4+ Kh5 56. Qe5+ Kh6 57. Qh2+ Kg5 58. Qg3+ Kh5 59. Qxg7 Rbxb6 60. Qc7 Rb2 61. c4 Rf5+ 62. Kd4 Rc2 63. Kd3 Rff2 64. c5 Rfd2+ 65. Ke4 Rc4+ 66. Ke3 =.

I wouldn't be surprised if someone eventually finds a forced win for White, but your "dynamically balanced" is certainly a fair assessment of 28...Qd8!

Jul-06-05
Premium Chessgames Member
  JohnBoy: If black had played 25...Nxg6, I believe white gets a very strong attack after 26.Qh2. Black probably had to play 26...Nf8 to avoid 27.Bxg7. White plays 27.Bh3 and 28.Rdg1 - I am doing this w/o board, but would rather be white than black. By a long shot.
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