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Later Kibitzing> |
| Sep-15-19 | | TheaN: <patzer2> did you get the puzzle at move 32 or something? 'cause that's indeed a3, but the puzzle's 34 (a2). I did not really attempt this, but I probably would have seen it with proper time. The combination plays relatively straightforward: after 35....Qxc5+! White's queen can't return to the first rank in one move, essentially 'threatening' to go up a full queen with 36....b2; therefore 37.Qf2 and 38.Qf1, rather than taking on b1, but the coup de grace is 38....Qxd1!! which forces White's hand after 39.Qxd1 Ra8 40.c5 (Qa1 Bg7 -+) a1=Q 41.Qxa1 (Qf1 Qc3 -+) Rxa1+ 42.Kf2 Bxf4 -+, with probably the practical (mind that giving back the piece isn't even required): 43.gxf4 Rc1 44.c6 Bxc6 45.bxc6 Rxc6 and White has a hopeless endgame. |
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| Sep-16-19 | | newzild: <erniecohen> Yes, good point. |
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Sep-16-19
 | | patzer2: <TheaN> Thanks! In between working on a bathroom flooring project and looking at chess puzzles, I was fatigued and got confused going back over this puzzle. I actually picked 34...a2 and correctly guessed the next two moves 35. Bxc5 Qxc5+ 36. Qxc5 b2 -+. After 37. Qf2 I couldn't decide which pawn to promote, and picked the second best move 37...a8(Q) -+. Best of course is the game continuation 38...b8(Q) -+, because it simplifies to an easier win. |
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Jan-14-21
 | | An Englishman: Good Evening: Thought this looked familiar; therefore, my first "known" for the week. Nonetheless, a game of great depth. This time, noticed that 22...Nce4 is a spectacular shot--why is 23.fxe4 unplayable for White? |
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Jan-14-21
 | | al wazir: Why doesn't white take the ♘ after 22...Nce4 ? I don't see anything bad that can happen after, e.g., 23. fxe4 Ng4 24. Qd2 Nxe3 25. Rxe3 Qc5 26. Nde2. |
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| Jan-14-21 | | Walter Glattke: A) 34.-Nd3? 35.Qxf8+ Rxf8 36.Nxd3 b2 37.Bd4
B) 34.-a2 35.Bxc5 Qxc5 (36.Qxb3 Qe3 37.Qxa2 Bxf3 38.c5+ Kf8 39.Bxf3 Qxf3 40.Nf2 Be3 41.Qe2 white advantage) but 35. Qxc5+ is check, so
C) 36.Qxc5 b2 37.Qd5+Kh8 38.Qd7 Rf8 39.b6
a1Q 40.Ne6 (40.-Qxd1?) 40-.b1Q 41.Nxf8 Qxd1+ 42.Qxd1 Qxd1+ 43.Bf1 Qd4+ or Bxf8 black wins C2) 40.b7 Qxb7 41.Qxb7 Qxd1+ black advantage, hey stockfish, show is the netter moves! |
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| Jan-14-21 | | Walter Glattke: *show us the better moves! |
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| Jan-14-21 | | FlashinthePan: <al wazir> 3. fxe4 Ng4 24. Qd2 Rxe4 and now e.g. 25. Bf2 Nxf2 26. Rxe4 Nxe4 and wins. |
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Jan-14-21
 | | Messiah: 34...Re1+ seemed to be very natural, but did not quite work in every possible variations. I wish for a morning when I will have sufficient time to solve the difficult ones end-to-end. |
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| Jan-14-21 | | Brenin: I chose 34 ... Bxf4, hoping for 35 Bxc5 Be3+. If 35 gxf4 then 35 ... a3 seems to transpose into the game line, or am i missing something? |
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Jan-14-21
 | | agb2002: Level 3: 16...?
V Baturinsky vs Smyslov, 1938
click for larger view |
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Jan-14-21
| | ajk68: 
click for larger viewWhite to move
1) -0.93 (33 ply) 23.Qb2 dxc4 24.Rxc4 Nc3 25.Rxc8 Rxc8 26.Qd2 Nfd5 27.Nxd5 Bxd5 28.Bf2 Qd6 29.Qe3 Rd8 30.Bh4 Ra8 31.Bf2 Qc7 32.Qd3 Rc8 33.Qa6 Qd8 34.Kh1 Ra8 35.Qd3 Qf6 36.Qc2 Rd8 37.Nb5 Nxb5 38.axb5 Qc3 39.Qxc3 bxc3 40.Rd1 |
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Jan-14-21
| | ajk68: <al wazir: Why doesn't white take the ♘ after 22...Nce4 ?> Yep, it's not so clear. Probably not quite as good as the line I posted above, but not a lot worse.
click for larger viewBlack to move
1) -1.08 (22 ply) 23...Ng4 24.Qd2 Rxe4 25.Nb5 dxc4 26.Bb6 cxb3 27.Rxc8 Qxc8 28.Rc1 Qb8 29.Bc7 Qf8 30.Bb6 b2 31.Rb1 Qb8 32.Qd6 Qa8 33.Nd3 Ne3 34.Bxe3 Rxe3 35.Qb6 Rxd3 36.Bxd3 Bxg2 37.Qa7 Qxa7+ 38.Nxa7 Bd5 |
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Jan-14-21
 | | chrisowen: Jugears vilify pa2 exempli gratia its a flick coin it against vilify it aquakong it avid regive jugears. Dently wobble humpon jugears vilify quiffs frivolous violin nok vilify yuk its dutchy it a tome vest vilify esp pug big brand it wolf videos totupodd ghost gourd mucky double vantage beauty hick vilify pa2 dish? |
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Jan-14-21
 | | Once: Well, that's weird. I spotted it so quickly that I was sure I'd seen it before. Who would have thought that increasing old age makes you remember some things as well as forgetting most others? |
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| Jan-14-21 | | saturn2: Though one for my taste. With limited time I would have moved the knight and so given the pawn b3. I also saw the idea 34 ....Bxf4 35 Bxc5 Be3+ Finally I noticed black can sacrifice the Nc5 like in the game but rather expected
34....a4 35. Bxc5 Qxc5+ 36. Qxc5 b2 37. Qd4 b1=Q 38. Rxb1-
axb1 |
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| Jan-14-21 | | woodenplayer: <newzild> <erniecohen> <RKnight> 34...Bxf4 doesn't transpose into the game line. 35. gxf4 a2 36. Bxc5 Qxc5+ 37. Qxc5 b2 38. Qf2 b1=Q 39. Qf1 Qxd1 40. Qxd1 Ra8 and now 41. Qa1 ... and now we have White winning. The Black Bishop is no longer available to take the long diagonal and foil the White Queen from blocking the pawn. |
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| Jan-14-21 | | goodevans: <Brenin: I chose 34 ... Bxf4, hoping for 35 Bxc5 Be3+. If 35 gxf4 then 35 ... a3 seems to transpose into the game line, or am i missing something?> I think you are, I'm afraid. Playing through the game line until 39...Ra8 makes it clear. The obvious blocking move 40.Qa1 fails to 40...Bg7 but after 34...Bxf4 35.gxf4 you no longer have the B to do that so you can't force the second promotion. Or maybe it's me that's missing something (you know it wouldn't be the first time!). |
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| Jan-14-21 | | Cellist: I also started with 34. ... Bxf4, which does not give Black much of an advantage after 35. gxf4 (instead of 35. Bxc5, which loses immediately to 35. ... Be3+). I also considered 34. ... Nd3, which is not bad but hardly enough for a win (SF says +1 for Black). I considered advancing the a or b pawn premature. My wrong. |
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| Jan-14-21 | | goodevans: I see that <woodenplayer> has made a similar response to some older comments. l must admit that 34.a2 was the first move I looked at and once I'd checked it out I didn't bother to look for alternatives. Luckily for me it seems these don't quite pan out. |
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Jan-14-21
 | | Jimfromprovidence: <Brenin> <I chose 34 ... Bxf4, hoping for 35 Bxc5 Be3+. If 35 gxf4 then 35 ... a3 seems to transpose into the game line, or am i missing something?> To reiterate what others have said, the difference is that if 34 ... Bxf4 35 gxf4 a2 occurs instead of 34...a2 directly, the bishop being off the board can't control the a1-h8 diagonal. I think it's easiest to see by plugging Qd4 into the position both in the text and in the alternative and then playing out the position. Here is the position after 37 Qd4 (instead of 37 Qf2) in the text. 
click for larger view The difficulty in seeing it in the text is because white played 37 Qf2 so ...Bg7 was never necessary. But as an example if play went 37 Qd4 b1=Q 38 Qa1 Qb3 39 Rd3 then 39...Bg7 does the trick. 
click for larger viewHere is the position after 34...Bxf4 35 gxf4 a2 36.Bxc5 Qxc5+ 37.Qxc5 b2 38.Qd4 for comparison's sake. 
click for larger viewNow if 38...b1=Q then 39 Qa1 makes it a very tough endgame for black. 
click for larger view |
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Jan-14-21
| | Jimfromprovidence: This is a correction and simplification of a paragraph of my previous comments. "The difficulty in seeing it in the text is because white played 37 Qf2 so ...Bg7 was never necessary. But as an example if play went 37 Qd4 b1=Q 38 Qa1 Qb3 39 Rd3 then 39...Bg7 does the trick." My comment should read:
"The difficulty in seeing it in the text is because white played 37 Qf2 so ...Bg7 was necessary <only if white had played 40.Qa1>". But as an example if play went 37 Qd4 b1=Q 38 Qa1 <Qxd1+ 39 Qxd1 Ra8 40 Qa1 then 40...Bg7> does the trick." Thanks to <goodevans> for that. |
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| Jan-14-21 | | RandomVisitor: White was very much in the game at move 18:
click for larger viewStockfish_21011322_x64_modern:
61/31 2:30:43 0.00 18.Rfe1 Bf8 19.Qf2 Re5 20.Bc2 d5 21.Rcd1 Ncd7 22.Qh4 Re8 23.Bf2 c5 24.Nb5 dxe4 25.fxe4 Bxe4 26.Bxe4 Rxe4 27.Rxe4 Nxe4 28.Ne6 Qxh4 <60/62 2:30:43 0.00 18.Rfd1 Qe7 19.Re1 Qf8> 20.Bf2 d5 21.cxd5 cxd5 22.Bb5 Re5 23.exd5 Rxe1+ 24.Qxe1 Nxd5 25.Rxc5 Nxf4 26.Rxc8 Qxc8 27.Qd2 Be5 28.Qe1 |
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| Jan-14-21 | | Brenin: Thanks to <woodenplayer>, <goodevans> and <Jimfromprovidence> for helpful comments concerning why 34 ... Bxf4 doesn't quite work. |
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Jan-14-21
 | | Breunor: Puzzle position - it looks like the queenside pawns were set up incorrectly, the white pawns and black pawns should switch places! |
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Kibitzing
sac: 35...Qxc5+