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Helgi Olafsson vs Simen Agdestein
Reykjavik (1987), Reykjavik ISL, rd 6, Feb-25
Dutch Defense: Stonewall. Modern Variation (A90)  ·  0-1

ANALYSIS [x]

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Given 26 times; par: 39 [what's this?]

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sac: 25...Qf7 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Sep-28-21  Brenin: 25 ... Qf7, and mate is unstoppable, e.g. by Qf2+ and Qg2. If 26 Nxe2 Qf2+ 27 Kh1 d4+ with mate, or 26 Rf1 Qxf1 mate.
Sep-28-21
Premium Chessgames Member
  raymondhow: Found 25...Qf7, pretty easy though I was a bit suspicious because not a spectacular looking move.
Sep-28-21
Premium Chessgames Member
  An Englishman: Good Evening: A little tougher than Tuesdays usually prove for me. quiet and subtle, almost like a stiletto so sharp you can't feel it go in.
Sep-28-21
Premium Chessgames Member
  al wazir: <raymondhow: I was a bit suspicious because not a spectacular looking move.>

My thinking exactly.

Sep-28-21
Premium Chessgames Member
  agb2002: Black has a bishop for a knight.

White threatens Nxe2.

The lack of coordination of the white pieces allows Black to keep the control of White's second rank with 25... Rff2 26.Nxe2 Rxe2 (threatens Qh3):

A) 27.Kf1 Rxh2 28.Kg1 (28.Ke1 Qe6+ and mate in two; 28.Rdc1 Qf5+ and mate in two) 28... Qh3 wins.

B) 27.b4 Qf5 (27... Qh3 28.Qf3) 28.Rf1 Qh3 29.Rf2 Re1+ 30.Rf1 Q(R)xf1#.

Sep-28-21
Premium Chessgames Member
  agb2002: Still sleeping. I missed 29.Rf8+ in my line B and White wins.
Sep-28-21
Premium Chessgames Member
  Dionysius1: Hmm. For a moment, I wanted 25...Qh3 to work. More a court shoe than a stiletto.
Sep-28-21  Pedro Fernandez: ANALYSIS[x]25...Rxh2 26. Rc2 Rxc2 27. Nxc2 Qg4 28. Rd2 Qxg3+ 29. Rg2 Qd3 30. Qc1 d4 31. Rd2 Qg3+ 32. Rg2 Qxg2#
Sep-28-21  Autoreparaturwerkbau: I gave idea for puzzle more than 14 years ago, but completely forgot about it and rather embarrasingly missed it today, wanting 25...Qh3 to work, which draws at best.

No cake for me today. :)

Sep-28-21  Pedro Fernandez: My analysis does not work since 25...Rxh2 26.Kxh2, sorry.
Sep-28-21  Brenin: <Dionysius1>: Trying to stab someone with a court shoe would be pretty ineffective. This particular weapon leads to a draw after 25 ... Qh3 26 Nxe2 d4 27 Nf4 Rxf4 28 Qb2 Rf3 29.Rc2 d3 30 Rcd2 Rxg3+ 31 hxg3 Qh1+ 32 Kf2 Qg2+ 33 Ke3 Qe4+ 34 Kf2 etc.
Sep-28-21  saturn2: In < agb2002s> line B) 27....d4 and after 28.Qb3+Kh8 white is still in trouble.
Sep-28-21
Premium Chessgames Member
  Teyss: <al wazir: <raymondhow: I was a bit suspicious because not a spectacular looking move.> My thinking exactly.> Ditto.

Was desperately trying to make 25...Qh3 work then Rff2 then Ref2 which still gives Black a better position after 26.Rc2 Rxc2 27.Nxc2 d4 but thought it was too complex for a Tuesday.

Sep-28-21  Vermit: Yep, I saw 25...Qf7. Would I have seen it when Black played 24...fxg3? Not so sure. Good puzzle!
Sep-28-21
Premium Chessgames Member
  chrisowen: Ohm i verdict vocals Qf7 gestate a bluffs frazzled its low its ohm i verdict vocals volts u no ted ay victory mojos bunch fin i bin a fibonacci verdict fickle quagmire vocals aged its debts verdict it was waste it in i waves x only its lockheed its pinky mits verdict vocals times it was big catch changer fraggier magnificent account oxe it bled dracks v on da it hid z it figs guv hail it oe register it say ie doggerel minced it dj v ok tall it meld fees it sides in nemesis verdict glided it low boy key i gq it beef it see mins von guv electrical engineer in fighting it fits in destiny no age it sage v in packs o verdict hosanna vocals verdict ahoy in fun resistance is futile Qf7 cool?
Sep-28-21
Premium Chessgames Member
  chrisowen: Qf7 cadence vents rule no?
Sep-28-21
Premium Chessgames Member
  chrisowen: Hood no socket no?
Sep-28-21  Stefan Lukke: A beautiful combination
Sep-28-21
Premium Chessgames Member
  gawain: I mistakenly thought 25...Qh3 would win for Black.
Sep-28-21  NBZ: <agb2002>: I really like the Qf5 idea. Of course the Black queen wants to eventually go to h3, but by first stopping at f5, she forces the white rook to come to f1 and block the king's escape route, so that Qh3 now comes with a double mate threat. Very clever and it's a real pity that White has Rf8 at the end, otherwise this would be a prettier solution than what we saw in the game.
Sep-28-21
Premium Chessgames Member
  doubledrooks: 25.,,Qf7 26l.Nxe2 Qf2+ 27. Kh1 d4+ 28. Rc6 bxc6# works for me.
Sep-28-21
Premium Chessgames Member
  Check It Out: This took me a bit. I looked at 25...Qh3 26.Nxe2 d5 27.Nf4 Rxf4 28.Qb2 and couldn't see any follow up.

25...Ref2 but 26.Rc2 seems to stop any funny business.

25...Rff2 but 26.Nxf2 and again no follow up.

Finally, my eyes looked at 25...Qf7 and I couldn't find a way for white to stop the black queen invasion to f2 followed soon by mate.

Let's see how I did.

Sep-28-21
Premium Chessgames Member
  agb2002: <saturn2: In < agb2002s> line B) 27....d4 and after 28.Qb3+Kh8 white is still in trouble.>

Unfortunately, White has 29.Rc2 and White seems to hold.

Sep-28-21
Premium Chessgames Member
  agb2002: <NBZ: <agb2002>: I really like the Qf5 idea. Of course the Black queen wants to eventually go to h3, but by first stopping at f5, she forces the white rook to come to f1 and block the king's escape route, so that Qh3 now comes with a double mate threat. Very clever and it's a real pity that White has Rf8 at the end, otherwise this would be a prettier solution than what we saw in the game.>

Thanks a lot!

Oct-02-21
Premium Chessgames Member
  Dionysius1: <Brenin: <Dionysius1>: Trying to stab someone with a court shoe would be pretty ineffective. This particular weapon leads to a draw after 25 ... Qh3 26 Nxe2 d4 27 Nf4 Rxf4 28 Qb2 Rf3 29.Rc2 d3 30 Rcd2 Rxg3+ 31 hxg3 Qh1+ 32 Kf2 Qg2+ 33 Ke3 Qe4+ 34 Kf2 etc.>

Thanks, you're quite right: it's the ineffectiveness of my first hope that I was drawing attention to.

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