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Miguel Illescas Cordoba vs Michael Adams
Nikiti/Afytos (1992), rd 3
English Opening: Symmetrical Variation. Hedgehog Defense (A30)  ·  1-0


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Kibitzer's Corner
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Premium Chessgames Member
  johnlspouge: Tuesday (Easy)

Illescas-Cordoba vs Adams, 1992 (12.?)

White to play and win.

Material: N for B. The Black Kg8 has 1 legal move. The White Bg2 x-rays the Black Bb7 and Ra8 through the White Nf3, a potential discovered attack. The discovery 12.Ng5 also threatens 13.Qh7#, making it an interesting candidate. The White Kg1 is secured from check.

Candidates (12.): Ng5

12.Ng5 (threatening 13.Qh7# or 13.Bb7 then 14.Bxa8)

Black can capture at most Ng5 and Bb7 in exchange for Bb7 and Ra8, dropping an exchange.

Sep-22-09  YetAnotherAmateur: It took me a good 20 seconds or so, because at first I wanted to see if I could pull the king out of his corner with Qh7+ followed by Ng5+. Then I noticed that after Ng5 the long diagonal would be completely free for the g2 bishop.

Lastly, I realized that the threat of Qh7 is mate if there's a knight at g5, so playing Ng5 first wins the day.

Premium Chessgames Member
  Patriot: Ok, 12.Ng5 wins at least the exchange--not hard to spot. How many of you as black would've thought "If I play 11...O-O, I lose the exchange to 12.Ng5 hxg5 13.Bxb7 Nd7 14.Bxa8 Qxa8?"

Seeing the combination on offense is great, but seeing it from a defensive standpoint is just as important.

Is there anything wrong with 11...Nc6?

Premium Chessgames Member
  ZUGZWANG67: It seems to me that W wins the exchange: 12.Ng5 Bxg5 (12. ...Bxg2?? 13.Qh7 is mate) 13.Bxb7 Nd7 and 14.Bxa8.

Time to check! (GULP!)


That was it.

Premium Chessgames Member
  patzer2: Illescas-Cordoba's 12. Ng5! surprises Adams in the opening with a strong double attack, which wins decisive material due to the dual threat of 13. Qh7# or 13. Bxb7 .

It also solves today's Tuesday puzzle with a simple but instructive example of this tactic (double attack).

Premium Chessgames Member
  JG27Pyth: This kind of amateurish lose-the-exchange in the opening two-mover is so known to me as to constitue a core part of my repertoire, as is the continuation, which is to place my hands on top of my head and moan sorrowfully, "...idiot... why did god make me an idiot?"

But for an elite GM this has to be a real embarassment.

Got the problem exactly in the manner described by You Rang.

Premium Chessgames Member
  ZUGZWANG67: <<chesskidnate>: why did black decide to resign after 22.Rc7 as opposed to immediately when he lost the exchange or not at all?>

I think that after 14. ...Qxa8, B had the following in mind: Ok, you won the exchange, but to convert, you will have to activate your booty as opposed to what I got in the trade, e.g. my bishop, which already is very strong. As opposed to the position after 22.Rc7, when the R is finally under the sun on the 7th, enabling W to prove his point.


Premium Chessgames Member
  chrisowen: Mickey's hedgehog squashes any spider sense he might have getting caught up in his own cobwebs. 11..0-0 is just too dangerous as the silken Ng5 wraps it safely for white.
Premium Chessgames Member
  johnlspouge: < <JG27Pyth> wrote: This kind of amateurish lose-the-exchange in the opening two-mover is so known to me as to constitute a core part of my repertoire >

LOL. Nice to see you back, <Pyth>.

Premium Chessgames Member
  Eggman: Today's puzzle reminds me of Fiedler-Brice, 1995 Canadian Open: 1.♘f3 d5 2.c4 e6 3.g3 c5 4.♗g2 dxc4 5.♘a3 ♘f6 6.♘xc4 b5? 7.♘ce5 ♗b7??

click for larger view

White to play and win

8.♘xf7! ♔xf7 9.♘e5+ ♔g8 10.♗xb7 ♘bd7 11.♘xd7 ♘xd7 12.♕b3! c4 13.♕xb5 ♖b8 14.♕xc4 ♔f7 15.♗g2

Three pawns up, the rest is routine:

15...♗b4 16.O-O ♕a5 17.d4 ♖hc8 18.♕d3 ♗d6 19.e4 h6 20.e5 ♗e7 21.♕f3+ ♔g6 22.♕g4+ ♔f7 23.d5 ♕a6 24.♕xe6+ ♕xe6 25.dxe6+ ♔xe6 26.♗h3+ 1-0

An amusing Master vs Expert drubbing.

Premium Chessgames Member
  offramp: 12.Qh7+!! Kxh7 13.Ng5+! picks up the bishop on b7. Easy one.
Premium Chessgames Member
  Eggman: <<12.Qh7+!! Kxh7 13.Ng5+! picks up the bishop on b7. Easy one.>>

You can't get full points here, <<offramp>>, because you forgot to mention that it also wins the exchange!

Sep-22-09  dumbgai: Surprising to see someone of Adams' level overlook this simple tactic.
Premium Chessgames Member
  TheaN: Tuesday 22 September 2009


Target: 1:25;000
Taken: 0:26;703

Material: Black is better, ♗ / ♘

Candidates: <[Ng5]>

Quite easy puzzle, with only one clear move and a well known pattern. White wins material after:

<12.Ng5!> as Black has to cope with the mate threat. After:

<12....Bxg5 13.Bxb7 > the exchange can no longer be saved. 12....Be4 13.Bxe4 leads to the same. Time to check.

Sep-22-09  paladin at large: A very close relative of the Monticelli Trap, first played in 1926 by Mario Monticelli.
Sep-22-09  fyad reject: another tuesday, another failure. took me like 10 mins to even see the bishop threat and hunted around for another 10 mins for a good move for the knight, examined and discarded the correct move because i didnt see qh7#, im the worst player on this site
Sep-22-09  RonB52734: <fyad reject> tied for worst. My experience was identical to yours. Well, it's a lesson, anyway. I knew that knight had to go someplace useful. I just need to look at its usefulness in conjunction with other pieces (like, you know, the big one).
Sep-22-09  MaczynskiPratten: Amazing Adams played on so long - either he was shellshocked or trying to pretend he'd intended an exchange sac :-)
Premium Chessgames Member
  Patriot: <fyad reject> Did you notice the b7-bishop is unprotected (LPDO - "loose pieces drop off")? That's a good indicator there might be a combination involving that piece.

Keep practicing tactics and you will improve.

Sep-22-09  cracknik: I did this to someone yesterday on yahoo blitz.
Premium Chessgames Member
  fm avari viraf: For all their vaunted powers of ratiocination, Grand Masters of Chess tend to be a skittery lot. In this game, Adams corroborates & loses the exchange in the opening itself after 12.Ng5 hxg5 13.Bxb7 Nd7 14.Bxa8 Qxa8 After losing the exchange it's difficult to survive unless your opponent falters but I'm sure Cordoba must have cashed in the vital point with great delight!
Sep-22-09  njchess: Got this after a couple of minutes. It took me a while to take in the position.

Adams gets caught flat footed and castles right into it. Ouch! Still, he puts up a good fight though White never gives him an opportunity to equalize.

Premium Chessgames Member
  Artar1: I don't know why it took me so long to see this one. I saw Black's weakened kingside and the undefended bishop on the queenside immediately, but it took me too long, a couple of minutes, to put the right sequence into motion.
Sep-22-09  antharis: Easy one. I saw the long diagonal g2-b7 and the fact that the Bb7 is unprotected. So after 12. Ng5 hxg5 is forced due to the mate via 13. Qh7#. White wins the exchange rook vs. minor piece with this combination. <<Patriot> wrote: Is there anything wrong with 11...Nc6? >> No. I actually think that this would be one really good move for black beside a few others for example 11...Na6, Bxc3 or Qd7.
Sep-22-09  soprano: 9.Ng5 of course
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