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Iolo Ceredig Jones vs Juergen Dueball
Nice Olympiad Final-A (1974), Nice FRA, rd 10, Jun-24
King's Indian Defense: Fianchetto Variation. Classical Fianchetto (E67)  ·  0-1

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Aug-08-15
Premium Chessgames Member
  perfidious: <FSR> To coin a phrase.
Oct-05-19
Premium Chessgames Member
  Fusilli: 26...Re1!!


click for larger view

One of the most beautiful moves ever.

The rook can be taken with FOUR pieces and all captures are poisonous. And not taking it loses too. Just fantastic.

May-21-21
Premium Chessgames Member
  perfidious: <thegoldenband: Amazing move, and I didn't come anywhere near it....>

Presented with this position in an OTB game, not at all likely that I should have managed either.

A key point to the soundness of Dueball's idea is that, as in the far better-known games Lasker vs J Bauer, 1889 and Nimzowitsch vs Tarrasch, 1914, material is gained at the end of the combination which produces a clearly won position.

May-21-21  Walter Glattke: Did not expect Nb2 after Re1
A) 26.-Re1 27.Nxe1 Nb2! 28.Ng2 Nxb1 29.Rxd1 Qe2 30.Ne3 Qxf3+ Q for R+N+P B) 27.Rxe1 Nf2+ 28.Kg2 Nxd1 29.Rxd1 Qe2+!
C) 27.Nb4 Nf2+ 28.Kg2 Qxf1#
D) 27.Qxe1 Nxe1 28.Rxe1 Ne5 29.Kg2 -+ Q for R+N
May-21-21
Premium Chessgames Member
  al wazir: How did I miss this one???

I know how.

I counted *four* pieces that could capture the ♖ after 26...Re1: ♕, ♖, ♗, ♘.

So I said, that *can't* be right.

May-21-21  nikonoel: A good way to start a Friday but I expected something a bit more difficult. Did the CCTP method. Check for Checks, Captures, Threats and Pawn breaks (in that order).

1. Checks : none relevant

2. Captures: Qxa4 doesn't seem promising to say the least

3. Threats: I see 2 pieces which could potentially be vulnerable: Rf1 and Nc2. There is also Nf2 looming over the queen (fork). I briefly considered Ne1 attacking the rook but it quickly became obvious that Re1 followed by either Nf2+ or Nb2 is winning.

4: Pawn breaks: no need to look for them as #3 made them irrelevant anyway.

May-21-21  nalinw: What is the point of having an engine that does not find the solution to this problem?

It gives 26.... d4 (-1.35) as the best move!

Once the correct move is played the eval drops to - 7.85

May-21-21  agb2002: I know this game. Surely that's why I didn't post 10 years ago.
May-21-21  TheBish: I got this rather quickly. Maybe it was familiar because I posted the correct solution almost 10 years ago? Or more likely, it was a tactic I came across on my phone tactics app in the last year!
May-21-21  murkia: <nalinw>I think the engine has just been serviced ;-)
May-21-21  malt: 26...Re1 27.B:e1 (27.N:e1 )

(27.R:e1 Nf2+ and 28...N:d1 )

27...Nb2! wins the Queen, Δ 28...♕:f1#

May-21-21  Brenin: Oh, dear! I looked carefully at 26 ... Re1!!, and thought I had refuted it, but I missed the follow-up 27 ... Nb2. What a beautiful and unexpected combination. The role of the P on f3 is critical to its success.
May-21-21  Lambda: I like the way white can lose the same, slightly unusual material balance in three different ways.
May-21-21
Premium Chessgames Member
  Dionysius1: Ah chess, thou art a heartless beast. A familiar self blocking tactic provoked in a totally unfamiliar situation. Hurtful and beautiful!
May-21-21  awfulhangover: Omg, what a fantastic play by black. Too hard for me.
May-21-21  griga262: One of the VERY rare Fridays I got. After 26. ..Re1, either the queen or the king must fall.
May-21-21  griga262: <FSR: I've heard that the 1974 Olympiad was very Nice.> Very funny!
May-21-21  mel gibson: I didn't see it but once I was shown
it was so obvious - I'm embarrassed.

Stockfish 13 says:

26... Re1

(26. .. Re1 (♖e8-e1 ♗d2xe1 ♘d3-b2 ♗e1-b4 ♘b2xd1 ♖f1xd1 ♕a6-e2 ♖d1-e1 ♕e2xc2 ♖e1-e8+ ♘d7-f8 ♘a4-c3 ♕c2-f2 ♘c3-e2 d5-d4 ♘e2-g1 d4-d3 ♗b4-e1 ♕f2-f1 ♗e1-d2 ♕f1-d1 ♗d2-b4 ♗g7-d4 ♖e8-e1 ♕d1-c2 a2-a4 ♘f8-e6 ♖e1-f1 ♘e6-f4 g3xf4 h7-h6 ♖f1-e1 ♔g8-h7 ♖e1-e8 ♕c2-f2 ♖e8-e1 g6-g5 f4xg5 d3-d2) +8.70/35 161)

score for Black +8.70 depth 35

May-21-21
Premium Chessgames Member
  chrisowen: Ribs, keys i Re1 feel like amalgamate kong aqua keys ribs flicks mast desk wiggle bring keys ins quandry quotas keys i jays photon beam have its centrifuge kestrel lost family keys i map within o width jank adds ear earth flick orgy keys gets hoggy eg keys i cio et 9 10 ear its read Re1 its boxed,
May-21-21
Premium Chessgames Member
  mjmorri: LOL. I spent my time analyzing the hallucination 26...Ne1 27.Rxe1 Nf2+. Of course the N is no longer on d3 to play Nf2+.
May-21-21
Premium Chessgames Member
  Jimfromprovidence: I missed it back in November, 2011 and I missed it today. At least I am consistent.

<brenin> <The role of the P on f3 is critical to its success.>

Duly noted. Also check the role of the pawn on h2, (now on h3)


click for larger view

and the king on h1 (now on g1).


click for larger view

May-21-21  Refused: 26...Re1! took me a bit longer to work it out than it should've. a) 27.Rxe1 Nf2+ -+
b) 27.Bxe1 Nb2!! and the dual threat of Qxf1# and Nxd1 makes this -+.
May-21-21  cormier: sf Depth 34

-0.28 15....b6 16.c6 Nc5 17.Ba3 Ne6 18.Bb2 Ba6 19.Rf2 Rc8 20.Rc1 Nxd4 21.Bxd4 Rc7 22.Rd2 Qd6 23.Rdc2 Qe6

May-21-21  RandomVisitor: Earlier, 16.Ba3 was called for:


click for larger view

Stockfish_21051710_x64_modern:

<49/57 08:36 -0.00 16.Ba3> Nb8 17.Nb5 Nc6 18.Nd6 Rd8 19.Re1 Be6 20.Bh3 Qd7 21.Bxe6 fxe6 22.Rc1 Ne8 23.f4 Rab8 24.Qe2 Nc7 25.Kg2 Nd4 26.Qd3 Nc6

May-22-21  RandomVisitor: As others have said, all 4 ways to capture the rook fail, even not capturing it:


click for larger view

Stockfish_21051710_x64_modern:

47/50 9:31:55 -9.67 27.Rxe1 Nf2+ 28.Kg1 Nxd1 29.Be3 Ne5 30.Rxd1 Qe2 31.Rf1 Qxc2 32.Bxa7 Qxa2 33.Bc5 Nd3 34.Be3 Qe2 35.Ba7 Ne1 36.Rf2 Nxf3+ 37.Kg2 Ne1+

47/50 9:31:55 -10.55 27.Bxe1 Nb2 28.Qe2 Qxe2 29.Rf2 Qd1 30.Nxb2 Bxb2 31.Kg2 Ne5 32.Bd2 Qxc2 33.Bf4 Qb1 34.Be3 Qd1 35.Bxa7 Bc3 36.Rf1 Qe2+ 37.Rf2 Qa6

46/62 9:31:55 -11.17 27.Qxe1 Nxe1 28.Rxe1 Qd3 29.Re8+ Nf8 30.Ne3 Qxd2 31.Ng2 Qxa2 32.Re1 Nd7 33.Nf4 Qf2 34.Re8+ Nf8 35.h3 Qxg3 36.Ne2 Qxf3+ 37.Kg1 Qxb3

46/50 9:31:55 -11.40 27.Ne3 Rxd1 28.Nxd1 Nb2 29.Ne3 Nxa4 30.Kg2 Nab6 31.Re1 Qxa2 32.Nf1 f5 33.h4 Nc5 34.Kh3 Nxb3 35.Bb4 Qf2 36.Re8+ Kf7 37.Re7+ Kf6

46/54 9:31:55 -11.48 27.Nxe1 Nb2 28.Ng2 Nxd1 29.Rxd1 Qe2 30.Re1 Qxd2 31.Re8+ Bf8 32.Nf4 Qxa2 33.Nc5 Nxc5 34.Nh3 Qxb3 35.Kg2 Qc2+ 36.Kg1 Nd7 37.Nf2 d4

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