Sergey Smagin vs Nikolai Vlassov (1995)

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Sergey Smagin vs Nikolai Vlassov
Petrosian Memorial (1995), Moscow RUS, rd 8, Feb-??
Nimzowitsch Defense: Declined Variation (B00) · 0-1

ANALYSIS [x]

FEN COPIED

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< Earlier Kibitzing · PAGE 2 OF 2 · Later Kibitzing>
Jun-02-21		saturn2: The Bd4 crosspins the f2 pawn 25...Rxg3+ 26. hxg3 Qxg3+ 27. Kh1 Qf3+ 28. Kh2 (- Kg1 loses faster) Be5+ 29. Kg1 Rg8

Jun-02-21		agb2002: Black has a bishop for a pawn. The quickest way to win seems to be 25... Rxg3+ 26.hxg3 Qxf3+ 27.Kh1 Qf3+ 28.Kh2 (28.Kg1 Rg8+ and mate in two) 28... Be5+ and mate in two.

Jun-02-21		Refused: 25...Rxg3+ 26.hxg3 Qxg3+ 27.Kh1 Qf3+ 28.Kh2 Be5+ 29.Kg1 Rg8

Jun-02-21		Brenin: Fairly easy for a Wednesday, with an obvious first move 25 ... Rxg3+ and two forced mating lines, depending on whether white chooses to die with 28 Kg1 or Kh2. White was lost after the unwise 18 Qh6, dropping a piece to the clever response 18 ... Nc6. Protecting the B on e2 with 18 Rfe1 first was needed.

Jun-02-21		stacase: Once you notice the pinned Pawn ...

Jun-02-21		Messiah: <FSR: What <PB> said.> 'With the f-pawn pinned, <25...Rxg3+> is an automatic look-at. After <26.hxg3 Qxg3+ 27.Kh1 Qf3+>, White is in a fix. If 28.Kg1 Rg8+ leads to mate, and if 28.Kh2 Be5+ forces the king to the death square on g1.'

Jun-02-21		malt: 25...R:g3+ 26.hg3 Q:g3+ 27.Kh1 Qf3+ 28.Kh2 Be5+ 29.Qf4 (29.Kg1 Rg8+ ) 29...B:f4+ 30.Kg1 Rg8#

Jun-02-21		mel gibson: Nice one - very easy.

Jun-02-21		asiduodiego: Nice tactic. As usual, the key in the mate sequence is the speed at which black's pieces can jump into action. Also, never forget the "secret" pin of the f pawn when the king is castled kingside.

Jun-02-21		chrisowen: Muzzles i evolves mindset Rxg3 filly arrives volumes eeyores boffin i tit for tat its muzzles vinyl evolves viktors vilificate i evolves rubbed it wag i evolves quip pit top in muzzles haunt its krishna chins able it tow pedal evolves on deep dominate evolves addups gilly flick gambles ajar ko in nap it dosh it i evolves it windmill vow it in Rxg3 ebony;

Jun-02-21		Hercdon: Easy peasy 3, 2, 1, Vlassov!

Jun-02-21		chrisowen: Lift no better whole hog no?

Jun-02-21		1g1yy: Looked at this probably as long as any I've tried to solve, and couldn't see it... :( Just wasn't considering the pin... :shrug:

Jun-02-21		Once: <stacase: Once you notice the pinned Pawn ...> I did!

Jun-02-21		chrisowen: No break it ook lift no?

Jun-02-21		TheaN: This is Tuesday at best, given <25....Rxg3+ 26.hxg3 Qxg3+ 27.Kh1 Qf3+> is completely forced. Now whatever the response, it follows Be5+, Rg8+ and B/RxQ with mate in three, for example <28.Kh2 Be5+ 29.Kg1 Rg8 30.Qg6 Rxg6#>

Jun-02-21		drollere: Rxg3+; 26. hxg3 Qxg3+ is the obvious way to exploit the pin at f2; the real part of the problem is how to keep the checks rolling to prevent the defensive Qh3+ and bring in Rg8 at the right moment.

Jun-02-21		Ariogermano: Very very easy

Jun-02-21		Once: Is this easy? Well, yes and no. It's easy if we have internalised a number of key concepts. The Bd4 pins the f2 pawn, which in turn means that the g3 pawn is only protected once and not twice. Because g3 is protected once and we have two pieces attacking it, we can exchange twice on g3 with a reloader. We want to do this because we have pieces huddled around the white king, so our strategy should be to open lines against the king. Once we have reloaded on g3, we can give a check with our queen on f3. This is important because we want to invite all our pieces to the party. We want our remaining rook to grab the newly opened g file, because rooks love open files. Eventually we will play Be5+, dominating an uncontested diagonal and attacking a focal point in the white position. So yes this is easy. But only because we have internalised a handful of techniques and principles as diverse as a pin, reloader, inviting everyone to the party, rooks on open files and bishops attacking focal squares.

Jun-02-21		saturn2: I dont understand 19.Bh5 giving up a piece Instead 19. Nxc6 19...Bxc6 20. Qh3+ Kb8 21. Bf3 or 19...Rxe2 20. Rxd7 Kxd7 21. Qh3+ Ke8 22. Qf3 Re6- 23. Na5 seem better.

Jun-02-21		olinart: Very easy puzzle - all forced. Black has everything focussed on the king side. Going back a couple moves how could the simplest continuation 22. Bxg8 Rxg8 23. g3 get missed? If eg ..Be5 24. Qxh7 Bg4 white has a slight advantage. Am I missing something?

Jun-02-21		HeMateMe: Extremely easy for a Wednesday, the position just plays itself

Jun-02-21		Brenin: <saturn2>: 19 Nxc6 loses to 19 ... Qxc6, threatening 20 ... Qxg2# and 20 ... Rxe2. If 20 Bf3 then simply 20 ... Qxf3.

Jun-02-21		Benzol: 25.Rd3 doesn't seem to be any improvement over 25.Rd2 after 25...Bxf2+ 26.Rxf2 Re1+ 27.Rf1 Rxf1#

Jun-03-21		saturn2: <Brenin> Of course. I considered the threat on g2, but only after 19....Bxc6 against which 20.Qh3 followed by Bf3 defend.

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