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| Nov-17-16 | | lost in space: Easy for a Thor's Day.
White would have a deadly threat with Nf7+ if this piece wouldn’t be absolutely pinned. So: unpin this piece.28. Rxh6 Qxh6 (else: piece down).
29. Qe3. Unpin and threat (in addition) Qxe4.
No defense against both threats, Nf7+ and Qxe4, for example 29....Bg6 30. Nf7+ the queen on h6 is lost what ever white does. |
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| Nov-17-16 | | dfcx: White would like to play Nf7+ or Nxe4, but the knight is pinned by the bishop. Need to eliminate the bishop first. 28.Rxh6 Qxh6
The knight is still pinned, by the queen now.
29.Qe3
unpins the knight, threatening Nf7+ winning the queen or Q/Nxe4 winning a bishop. |
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| Nov-17-16 | | patzer2: I immediately went for 28. Rxh6 for today's Thursday puzzle solution. After 28...Qxh6, instead of 30. Qe3  , I went for 30. Qxc7 (+4.08 @ 22 depth, Deep Fritz 15). Though it's also winning, 30. Qxc7 is not quite as strong as 30. Qe3 (+5.90 @ 20 depth, Deep Fritz 15). For a Black improvement, I'd look to the opening, where I prefer the more popular 8...b5 over the game continuation 8...Nfd7. The Opening Explorer indicates Black has had much more success with 8...b5. See Kasimdzhanov vs Caruana, 2014 for an example of strong play after 8...b5. |
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| Nov-17-16 | | TheBish: This was easier than yesterday's! Yesterday's puzzle was a little deeper than you would expect for a Wednesday. After you found the practically forced move today (28. Rxh6!) it was pretty easy to see the follow-up move, which led to immediate resignation. I think the puzzles should have been switched! |
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Nov-17-16
 | | al wazir: Why didn't black play 25...Bxe4 ? After 26. Nxe4 Qxe4 27. Rxh6 Nd5 28. Rgh1 Rf7, black is holding on (just barely). But maybe white has something better? |
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Nov-17-16
 | | Jimfromprovidence: I got 28 Rxh6 Qxh6 29 Qe3, but now there is counter pressure after 29..Nc4+.
click for larger view This forces 30 Bxc4, allowing 30...Qh2+ 31 Ke1 (only good move) Bg6. 
click for larger viewWhite keeps his advantage after 32 Nf7+ Kg7 33 Bd3. 
click for larger view |
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| Nov-17-16 | | mriddle: I tried the queen sacrifice 28. Rxh6 Qxh6 29. Qh3 Qxh3 30. Nf7+ Rxf7 31. exf7
at this point, I don't think black can defend both Rg8# and f8=Q#. However, they do have a bunch of attacking options and may be able to either force a perpetual check or a fork to win the f7 pawn or g1 rook, or something. I'd be curious if anyone followed this line enough see if it works or not. |
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| Nov-17-16 | | mriddle: oh, never mind, I guess all black has to do is 31... Qh6+ and then 32... Qf8 |
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Nov-17-16
 | | agb2002: White has a rook for a bishop and a pawn.
Black threatens Bxg5+ and Bxh1.
These threats suggest 28.Rxh6 Qxh6 (28... Nc4+ 29.Bxc4 only seems to lose material) 29.Qxe7: A) 29... Nd5 30.Qxf8+ Qxf8 31.Nf7+ Qxf7 32.exf7 and mate in two. B) 29... Qg7 30.Qxf8+ as in A and the double threat 33.e8=Q# and 33.Rg8# wins. C) 29... Rg8 30.Kd1
C.1) 30... Bg6 31.Nf7+ Bxf7 32.exf7 Rxg1 (32... Rc8 33.Qe5+ and mate next) 33.Qe5+ and mate with f8=Q. C.2) 30... Qg7 31.Nf7+ wins.
C.3) 30... Bd5 31.Qf6+ Rg7 (else 32.Rxh7#) 32.Qxh6 wins. D) 29... Bg6 30.Qxc7 wins a pawn with a much better position. For example, 30... Nd5 31.Qe5+ Nf6 32.e7 wins. E) 29... Nc4+ 30.Bxc4 Qh2+ 31.Be2 Qxg1 32.Qxf8#. |
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| Nov-17-16 | | AlicesKnight: Found 28.Rxh6 Qxh6; 29.Qe3. Wow - that's what K played! Black can concede the N instead of the B but long-term it doesn't help. |
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| Nov-17-16 | | diagonalley: OTB i would surely have played 29.QxKP... it is simply too tempting! |
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| Nov-17-16 | | thegoodanarchist: <notyetagm: What a beautiful combination by Karpov: 28 ♖xh6! ♕xh6 29 ♕e3!> Yes! I saw 28. Rxh6 Qxh6, returning the exchange to safeguard the knight, but so what, I thought? Then I turned to the game to find out the answer. Well, of course Karpov saw further than I did :) The subtle 29. Qe3!! is the kind of zwischenzug that inspires folks to like chess. |
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| Nov-17-16 | | Pedro.Akcio: I spent a couple minutes analyzing nf7+ until I realized the night is pinned...yes I'm this bad at chess :] |
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| Nov-17-16 | | Bondsamir: First, I played Rxh6,Qxh6 and moved the knight to f7. i missed that the night got another pin by the Queen!! |
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Nov-17-16
 | | kevin86: White takes this one by force! |
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| Nov-17-16 | | YouRang: Thursday 28.?
click for larger view
Almost immediately, the move that jumped into view was 28.Nf7+! Check plus discovered attack on black's queen! Brilliant. A moment later I realized it was illegal since the knight is pinned to my king. That of course prompted the idea of eliminating the bishop with <28.Rxh6!> instead, with the expectation of <28...Qxh6>.
click for larger view
Okay, Nf7+ still looks good, but it's still illegal. What I want to do is unpin my knight such that I create some other threat. For that, we have <29.Qe3!>
click for larger view
And now I can look forward to either Qxe4 or my long-awaited Nf7+, which (amazingly) still gives check plus discovered attack on black's queen. |
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| Nov-17-16 | | YouRang: <al wazir: Why didn't black play 25...Bxe4 ? After 26. Nxe4 Qxe4 27. Rxh6 Nd5 28. Rgh1 Rf7, black is holding on (just barely). But maybe white has something better?> Indeed, 25...Bxe4 was the only non-blunder move, and black missed it. Perhaps he overlooked that 26.Nxe4 Qxe4 27.Rxh6 Nc4! (forking K+Q) 28.Bxc4 could be met by 28...Rf2+!, creating a combination that wins a rook, ultimately allowing black to have a rook in exchange for a bishop and two pawns -- fairly even. |
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| Nov-17-16 | | YetAnotherAmateur: The initial sac makes sense: 28. Rxh6 Qxh6 29. Qe3 frees that all-important knight. The most interesting defensive try I could find was 29. ... Qh2. White has to be a bit careful in response to that: 30. Qxe4 leads to some counterplay with Nc4+. However 30. Nf7+ Rxf7 31. exf7 Nc4+ and now black doesn't have time for both Nxe3 and protecting against f8=Q# |
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| Nov-17-16 | | PTeam: @Jimfromprovidence: In your line after 28.Rxh6 Qxh6 29.Qe3 Nc4+ 30.Bxc4 Qxh2+, white can also play 31.Be2 retaining an extra piece with a strong attack. White threatens 32.Nxe4 and 32. Nf7+. After ...31.Bg6 (only move that doesn't immediately lose), white can play 32. Nf3 followed by 33. Ne5 with a completely winning position. |
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| Nov-17-16 | | Rookiepawn: <Jimfromprovidence: I got 28 Rxh6 Qxh6 29 Qe3, but now there is counter pressure after 29..Nc4+. This forces 30 Bxc4, allowing 30...Qh2+ 31 Ke1 (only good move)...> Wait, sorry for a patzer question, but what's wrong with taking the WB back to e2? From there I see no more checks for Black... I also found 28. Rxh6 Qxh6, but went 29. Kd1 afterwards. For B I only see 29... Bc2+ 30. Kxc2 Qg6+ 31. Kd2... Is 29. Kd1 winning too? I guess... |
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| Nov-17-16 | | dzechiel: Saw 28 Rxh6 right away and felt that it had to be the correct move. However, after 28...Qxh6, I mistakenly wanted to follow up with 19 Qxe7. I overlooked the fact that the knight was still pinned. <*sigh*> |
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Nov-17-16
| | Jimfromprovidence: <PTeam> <Rookiepawn> Yeah, I missed 31 Be2 completely. Knowing that now, I should have said 31 Ke1 is the only good king move, because of 31...Qc2+. |
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| Nov-17-16 | | Whitehat1963: Missed it. And afterward, it seems obvious. |
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| Nov-17-16 | | morfishine: Yawn, obvious |
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| Nov-17-16 | | King.Arthur.Brazil: I don't know if I have to kibitz the solution previously, but anyway, I hope I see that game before, because the image came fast in to my mind: Rxh6 and Qe3 directly. When I opened this page I'm sure about the answer and this was confirmed... I like to be here (Chessgames), but I have many other things to do, so chess is a rare pleasure that not always I can give to my own... But, by the way, I would like to send some of my games to you (Chessgames), is it possible? Or it is reserved only for "special" members? Thanks, anyway. |
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Kibitzing
sac: 28.Rxh6