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Feb-16-23
 | | takebackok: Like this one, rook h8+ and its curtains. |
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| Feb-16-23 | | Brenin: White is down by Q for B, but has mate with 41 Rh8+ Kg7 (Qxh8 42 Qe6+ Kg7 43 Qf7 mate, or 41 ... Kxh8 42 Qxf8 mate) 42 Qxf8+ Kxg8 43 Bh5+ Kg5 44 Qh6+ Kh4 (Kf5 45 Qg6 mate) 45 Bf3+ Qh5 46 Qf4 mate. |
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| Feb-16-23 | | Brenin: Black could have killed White's h-file counterplay with 36 ... gxh5 37 Qxh5 h6 38 gxh6 Bf6, and then his a-pawn guarantees a win. |
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| Feb-16-23 | | mel gibson: A bit tricky -
there were so many other moves that White could make but they all led to disaster - White getting checkmated.Stockfish 15 says:
41. Rh8+
(41. Rh8+ (♖h7-h8+ ♔g8-g7 ♕c8xf8+ ♔g7xg6 ♗f3-h5+ ♔g6xg5 ♕f8-h6+ ♔g5-h4 ♗h5-f3+ ♕e5-h5 ♕h6-f4+) +M6/221 9) White wins _ mate in 6. |
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| Feb-16-23 | | King.Arthur.Brazil: The decisive move is 41. Rh8+ since:
1) Kxh8 42. Qxf8# (a good beginning!).
2) Kg7 42. Qxf8+ Kxg6 43. Qh6+
(a) Kf7 44. Rh7+ Ke8 45. Bh5+ Kd8 46. Qf8+ Qe8 47. Qxe8#
(b) Kf5 44. Rf8+ Qf6 45. Rxf6+ Qxf6 46. Qxf6# (45... Ke5 46. Qh2#)
3) Qxh8 42. Qe6+ Kg7 43. Qf7#.
I hope my analyses are right and <Brenin> don't put water on my beer (lgs). |
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| Feb-16-23 | | jes47: If 41 ... Kg7 there are very quick and pretty mates waiting in the wings.
42. Qxf8+ Kxg6 43. Bh5+ Kxg4 44. Qh6+
and now
44. ... Kh4 45. Bf3+ Qh5 46. Qf4# or
44. ... Kf5 45. Qg6# |
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| Feb-16-23 | | Allderdice83: I had 41. Rh8+, but after 41 ... Kg7 42. Qxf8+ Kxg6, I had 43. Rg8+ Qg7 44. Bg4+. The problem is, 44 ... Kh5 45. Rxg7?? Qf1+! 46. Kxf1 d1=Q+ 47. Kg2 Qg4+ with at least a draw by repetition. So instead of 44. Bg4+?, White should play 44. Rxg7+. Then comes 44 ...Qxg7, 45. Be4+ Kh5, 46. Qxg7 and there's no back rank stuff; i.e., 46 ... d1=Q (not check!), 47. Qh6+ Kg4 48. f3+ Qxf3+ 49. Bxf3+ Kf5 50. Qf6# |
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| Feb-16-23 | | Mayankk: I saw some 41 Rh8+ lines but not the best continuations. A) 41 ... Kxh8 42 Qxf8#
B) 41 ... Kg7 42 Qxf8+ Kxg6 43 Bh5+ Kxg5 44 f4+ Kh4 45 Bf3+ Qh5 46 Qe7+ and mate soon C) 41 ... Qxh8 42 Bxd5+ ( I later saw that 42 Qe6+ was far superior) ... Kg7 43 Qd7+ Kg6 44 Qf7+ and a long King hunt which hopefully mates. |
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| Feb-16-23 | | Olsonist: I love Mondays. |
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Feb-16-23
 | | An Englishman: Good Evening: Already knew this one, but the combination still retains the power to astonish. |
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Feb-16-23
 | | perfidious: Never saw this game or POTD till now; pretty finish by a player who would go on to be one of Kasparov's seconds and was a strong GM in his own right. |
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| Feb-16-23 | | agb2002: White has three pawns for a queen.
Black threatens Qxg5+.
The queen on e5 is overloaded with the defense of e6 and h8 and the black king is overburdened with the defense of f8 and h8. Hence, 41.Rh8+: A) 41... Kxh8 42.Qxf8#.
B) 41... Qxh8 42.Qe6+ Kg7 43.Qf7#.
C) 41... Kg7 42.Qxf8+ Kxg6 43.Bh5+ Kxg5 44.Qh6+ Kh4 (44... Kf5 45.Qg6#) 45.Bf3+ Qh5 46.Qf4#. |
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Feb-16-23
 | | LIFE Master AJ: The problem was not that difficult...
---> Only 3 branches.
---> You did not have to calculate very far ahead. <<<<Having said this, the computer analysis would be fascinating.>>>> I also feel that you have to be impressed with White's strategy! How many players - as White, in a tournament - would be so cold-blooded? I greatly admire the way White pursued his attack ... meanwhile seemingly not to care that his opponent was blithely pushing his a-pawn and then promote to a Queen. When did White see the end? When he played 23.h4!!! Or, after 33.Kg2!!, did GM Vladimirov already see that he could force mate if Black promoted his a-pawn? How much was pure calculation and how much was intuition??? |
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| Feb-16-23 | | paavoh: The two first options (41.- Qxh8, Kxh8) were easy but I struggled with 41.- Kg7 a bit. Eventually the B+Q weaved a mate. P.S. With this post, I joined the 2700 club :-) |
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| Feb-16-23 | | Brenin: <LIFE Master AJ:... I also feel that you have to be impressed with White's strategy!> Really? He was totally lost at this point (e.g. 36 ... gxh5 kills his counterplay, see my second posting). This was a desperate and ingemious attempt at a swindle, and it succeeded because Black was careless about his defence. |
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| Feb-16-23 | | Autoreparaturwerkbau: Probably everybody knows <DOUBLE ROOK SAC>, but what about <DOUBLE QUEEN SAC>? Well, to be honest, this game doesn't offer exactly "sacing" 2 queens for a win since black loses anyway, so maybe <DOUBLE QUEEN LOSS> is more correct. So... how it happened? It is quite fascinating. It is about lengthy but vitually forced line that positions black king on the a1-h8 diagonal disconnecting black's a1 and h8 queens and taking them directly one after another. But, how? First, we start at the puzzle position 41.? and then we play 41.Rh8+ Qxh8 as best moves in the game. But then we follow with second best move 42.Bxd5+ because we want to play a little game here :))
click for larger view42...Kg7 (forced)
43.Qc7+ Be7 (only move besides Kxg6 which is mate-in-4) 44.Qxe7+ Kxg6 (forced)
45.Be4+ Kh5 (forced)
46.Qf7+
click for larger view
Here black can take the pawn (Kxg5) or hide to h4 but either way white can play the same maneuver, so i will show the Kxg5 line:
46...Kxg5
47.Qf5+ Kh4 (only move besides Kh6 which is mate-in-1) which leads to the position
click for larger view
You can already suspect how the king will get on a1-h8 diagonal. ;) Follows: 48.Qh3+ Kg5 (forced)
49.f4+ Kf6 (forced)
Black's king is now on the dreaded a1-h8 diagonal between his two queens and white's queen exactly where it wants to be - on h3 waiting to do the rare <DOUBLE QUEEN FEAST>
click for larger viewBONUS: After taking both queens white can take the third queen too, if black decides to promote d-pawn, while losing 0 queens himself. And black can do nothing about it. Extraordinary. |
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| Feb-16-23 | | TheaN: Wow. I <actually> managed to botch this one up. Carelessly missing Qa1's x-ray defense of h8, so chose 41.Bxd5+? Qxd5 42.Rh8+? Qxh8 -+. Knowing that Rh8 goes first, the variations are rather easy to spot. Shame. |
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| Feb-16-23 | | saturn2: 41.Rh8. Then I looked at the answers Qxh8, Kxh8 and Kg7 but non is satisfying. |
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Feb-16-23
 | | Atterdag: Incredible the number of posts on this rather simple combination. |
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Feb-16-23
 | | chrisowen: Hook toy quibble it is wag v cope jam u z Rh8 gave it is goofball ace it is emmy ah barb Rh8 cad :) |
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| Feb-16-23 | | Whitehat1963: Two useless queens. |
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| Feb-16-23 | | goodevans: Not sure if it's the right place to be asking this but does anyone know why CG doesn't have a page for the WR Chess Masters that's currently under way? I'd have thought any classical tournament featuring Nepo, So, Giri, Duda, Abdusattorov, etc. would merit one. |
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| Feb-16-23 | | Messiah: <goodevans: Not sure if it's the right place to be asking this but does anyone know why CG doesn't have a page for the WR Chess Masters that's currently under way?> Because the site does not work lately. |
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| Feb-16-23 | | virginmind: The easiest Thursday puzzle I've seen in a long while. It seems easier than this Monday's one. It's true that that one was not of a Monday's difficulty either... |
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| Feb-16-23 | | Messiah: <virginmind: The easiest Thursday puzzle I've seen in a long while. It seems easier than this Monday's one. It's true that that one was not of a Monday's difficulty either...> Probably the CG staff is in a time paradox like Cpt. Jean-Luc Picard. |
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