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Mark Hebden vs Ronaldo Cantero
Espoo (1986)
King's Gambit: Accepted. Fischer Defense (C34)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
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Jan-18-17  saturn2: Nd5.
If black accepts the sacrifice white`s rook on e1 becomes strong (<lost in space>even if the black queen can be saved by interposing the night on e5.) If black refutes there is Bxd6 or Nc7 to come.
Jan-18-17  AlicesKnight: I saw the points <YouRang> outlined - enough for a "won game". As mentioned a few days ago, 'not busted'.
Jan-18-17
Premium Chessgames Member
  agb2002: White has the bishop pair for a bishop and a knight.

The position of Black's king and queen suggest e5 and Nd5.

In the case of 18.e5:

A) 18... d5 19.e6 fxe6 (19... Ndf6 20.exf7+ wins) 20.Bf5

A.1) 20... Nf8 21.Bxg4 and White will win at least a pawn with an overwhelming position.

A.2) 20... exf5 21.Rxe7+ Nxe7 22.Qe3 looks winning. For example, 22... Kf8 (22... Ba6 23.Bg5 + -) 23.Bd6 Re8 24.Re1 f2 25.Bxe7+ Kf7 26.Qe6+ Kg7 27.Rf1 wins.

B) 18... dxe5 19.Bxe5 wins decisive material.

C) 18... Kf8 19.exd5 wins a pawn and looks horrible for Black.

-----

In the case of 18.Nd5:

A) 18... cxd5 19.exd5 wins decisive material.

B) 18... Qd8 19.Bxd6

B.1) 19... cxd5 20.exd5+ Ne5 21.Rxe5+ Kd7 22.Bc5 with two extra pawns and a won position.

B.2) 19... Rc8 20.Qf4 cxd5 (due to Bc7) 21.exd5+ Ne5 22.Qxe5+ Kd7 23.Bf5#.

-----

I think I'd play 18.Nd5.

Jan-18-17
Premium Chessgames Member
  whiteshark: <18.Nd5!> and that's it.

Alternatively to 18... Qd8, if <18...Qf8> (offering the Xchange) <19.Nc7+ Ke7 20.e5!> and white breaks through either with Bg5+ or exd6

Jan-18-17
Premium Chessgames Member
  morfishine: <18.Nd5> and Black's position soon falls apart

*****

Jan-18-17  saturn2: This game is a lesson in how to get back in development:

1. Move pieces more than once and exchange them afterwards. 2. Make many pawn moves.

Jan-18-17  gofer: I got this one quite quickly, but feel a little bit let down by the immediate resignation.

<18 Nd5 ...>


click for larger view

<OhioChessFan: Is it too prosaic just to push the e Pawn after 18...Qd8 ?>

That was exactly my thought too. Nd5 doesn't just do everything that everyone else has already mentioned. It also does something far more interesting. It halts Pd6 where it is. So now we can play e5 threatening exd6+ without any possibility of black playing d5...

<18 ... Qd8>
<19 e5 dxe5>
<20 Bxe5 ...>


click for larger view

White threatens Bd6+, so the knight is still immune.

29 ... cxd5
30 Bd6+ Ne7 (Ne5 22 Rxe5 Kd7 23 Qf4 )
31 Rxe7+ Qxe7
32 Bxe7

<20 ... Nxe5>
<21 Rxe5+ ...>

21 ... Kd7
22 Bf5+ Kd6
23 Qf4

<21 ... Kf8>

Hmmm, okay, perhaps this isn't as productive as I had hoped... ...it looks okay, but not as clean as the simple <19 Bxd6> winning another pawn (as the knight is still immune)...

Jan-18-17  Moszkowski012273: Actually 14.d5... was quite a bit stronger. As was playing it a few moves later.
Jan-18-17
Premium Chessgames Member
  PawnSac: < OhioChessFan: It's 2 AM and I'm satisified I'd win after 18. Nd5 regardless of the Black response. Maybe I'll look at this again after I wake up. >

not necessary. black resigned! lol

yea it took all of about 3 seconds to see Nd5, but I guess it didn't qualify as a Monday puzzle because there was no queen sac. <grin>

Jan-18-17
Premium Chessgames Member
  kevin86: Double attack! White chases the queen, then forks king and rook to win!
Jan-18-17  ColeTrane: 'tis true...even after precise play white is up three pawns and a queen to a knight....
Jan-18-17  stst: Not much time for this, but the Q-harass and K-R fork jumps to the eye instantly, so try: 18.Nd5 .....
(A)...... cxN, 19.exd5 and R pins Q-K.
(B)...... Qf8, 19.Nc7 forks K-R
(C)...... Qd8, 19.Bg5 then multiple lines, one: (C1)..... Ngf6
20.NxN NxN
21.e5 dxe5
22.Rxe5 Kf8
23.Rde8 Qd6
24.BxN QxB
25.Rf5 Qxd4
26.c3 Qd7 White got a strong center.
Jan-18-17  StevieB: I don't get 14 Bxb5. Why no capture?
Jan-18-17
Premium Chessgames Member
  patzer2: One of the positional principles my seven-year-old grandson recently studied in an instructional video was "don't develop your opponent's pieces."

That principle appears to have been violated with 10...Bxf4?, allowing White to expedite his development with 11. Bxf4 .

Jan-18-17
Premium Chessgames Member
  swclark25: I also thought 18)e5, but I now see the superiority of Nd5. As someone seeking to learn, is one takeaway that earlier castling is better? Looks like Black focused on pushing a couple pawns, but left King & Queen vulnerable.
Jan-18-17  drollere: i too thought 18. Nd5 was the obvious line.

<I don't get 14 Bxb5. Why no capture?>

most likely

14. ... cb5
15. Nxb5 Bb7
16. Bxd6 Qd8
17. Nc7+ Kf8
18. Nxa8 Bxa8

and white has R and 3P for the B+N.

Jan-18-17
Premium Chessgames Member
  ChessHigherCat: Privet <Moszkowski012273: Actually 14.d5... was quite a bit stronger> What's the continuation? 14..Ne5, 15. dxc6 b4 and?
Jan-18-17  StevieB: <drollere> The move 17...Kf8 looks illegal to me.
Jan-18-17  kevinatcausa: For me this didn't feel like a particularly easy Wednesday, mainly because of the need to work through why Qd8 doesn't do enough for black to keep things together.
Jan-18-17  Carlos0012358: A bit late to the party today. I'll just make some comments.

Both Nd5 and e5 are obvious and winning moves.

The more interesting aspect of this game through is how naively Cantero got himself in this hopeless position, and in only 17 moves.

Early reckless push of the two pawns without a specific aim while not developing and positioning pieces.

Lining up the Q in front of the K not recognizing the potential pin, while shifting to pushing the A pawn for no good reason.

Leaving a gaping fork on C7 not seeing that the Nc3 would be ready to exploit it.

White on the other hand developing its R and positioning Q and the two B along contiguous diagonals ready to strike the K side.

Both these players were at about 2500 ELO. Cantero played like a rookie.

Jan-18-17
Premium Chessgames Member
  gawain: Instructive puzzle. I would have played the correct 18 Nd5 on spec but I admit I did not appreciate how completely Black's game collapses after 18 ...cxd5 19 exd5 Ne5 20 dxe5. One amusing sequence is 20...Qd7 21 exd6+ Kd8:


click for larger view

The lineup on the d-file is nearly complete.

In this position White can force mate in seven, starting with 22 Qc3

Jan-18-17  Patriot: <Gawain> <18 ...cxd5 19 exd5 Ne5 20 dxe5> I prefer <20.Bxe5> threatening <21.Bxh8> or if <20.Bxe5 dxe5 21.Rxe5> with a deadly pin.
Jan-19-17  RandomVisitor: The computer does not think much of the "Fischer Defense"

After 3...d6


click for larger view

Komodo-10.1-64bit:

<-0.27/38 4.Bc4 h6 5.h4 Nf6 6.Nc3 Be7 7.d4> Nh5 8.Ne2 Nc6 9.Bxf4 Bg4 10.Qd2 Bxf3 11.gxf3 Bxh4+ 12.Kd1 Nxf4 13.Qxf4 Bf6 14.Rh5 Qe7 15.c3 0-0-0 16.Kc2 Kb8 17.Qh2 g6 18.Rh3 h5 19.Re1 Bg5 20.Kb1 Rhe8 21.f4 Bh6 22.Bd3 a6 23.e5 Na7 24.Nc1 Nc8 25.Nb3 Nb6 26.Na5 dxe5

Jan-19-17
Premium Chessgames Member
  gawain: <Patriot> In that sequence, your 20 Bxe5 is overwhelming too. And quicker.
Sep-08-19
Premium Chessgames Member
  master8ch: One of these days, Black is going to play 8...f3 and win (in style.)
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