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< Earlier Kibitzing · PAGE 5 OF 5 ·
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| Jun-22-12 | | LoveThatJoker: <TheBish> Your line is incorrect, as 40. Qh8+?? Kxh8  .LTJ |
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| Jun-22-12 | | bachbeet: I'll give myself most of the points for this one because I saw the first key move and some of the following ones which led to a taking of the rook and check, etc. I didn't carry it through because I felt that the first few moves sealed the victory and black's outlook was hopeless. Black's Q was reduced to a bystander. |
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| Jun-22-12 | | Oxnard: Nowhere near as intricate as yesterday's puzzle. |
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Jun-22-12
 | | gawain: Gee, beyond Qc7+ I just could not see how the king hunt would go. Failure of vision. I wonder if it would help if I set up with 3-D board and pieces instead of trying to do it with the diagram alone. |
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| Jun-22-12 | | brankat: <gawain> It would definitely help :-) |
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| Jun-22-12 | | Nullifidian: This doesn't strike me as that difficult, since almost every move is forced. 35. ♖xh7+ ♔xh7 36. ♕e7+
And now that the rook is gone anyway, you might as well play... 36... ♖f7 37. ♕xf7+ ♔h6 38. ♕f8+ ♔h7 (♔g5 39. ♕f4#) Now I'd play 39. ♗g8+ because the resulting pattern is an aesthetically pleasing model mate. 39... ♔h8 40. ♗e6+ ♔h7 41. ♕g8+ ♔h6 42. ♕h8+ ♔g5 43. ♙f4# 
click for larger view |
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Jun-23-12
 | | scormus: <gawain: ... vision>
I think you just have to dare. For a long time I wouldnt try to see past about 4 moves, its tough when the other player has several options. But when its forcing then you can keep pushing the limit of your vision, 6, 8, even 10 moves. <Sevenseaman> made a good comment about that. These puzzles are great for that, and the practice will improve your tactical play OTB |
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| Jun-23-12 | | dragon player: The first move is obvious, but the rest isn't:
35.Rxh7+ Kxh7
36.Qe7+ Kh8
36...Kh6 37.Qxf8+ Kh7 (37...Kg5 38.Qf4#) transposes.
37.Qxf8+ Kh7
38.Qg8+ Kh6
39.Qh8+ Kg5
40.h4+ Kf5
41.Qf8+ Ke5
42.Qf4#
Time to check.
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The game went slightly different, but mate is mate.
5/5 |
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| Jul-23-23 | | Brenin: 25 Rxe6 fxe6 26 Qxe6+ Kg7 is obvious, but the follow-up has to be 27 Qd7+, as White's Q needs to retreat to d4 to protect f2 and to threaten Qh4+ after Black's Kh6. Then Bd5 seals Black's fate. |
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| Jul-23-23 | | Brenin: 34 Qg7+ Kg5 35 h4+ Kg4 36 Qd4+ looks like a safer and quicker win than the line 34 Qh4+ Rh5 played, which requires a further R sac 35 Rxh7+ (a POTD eleven years ago). |
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| Jul-23-23 | | jrredfield: As <Brenin> says, the first few moves are obvious, quite simple for a Sunday. I saw 27 Qd7+ Kg8 28 Qd4 Qxf2+. At this point Black will lose both the Q and R with 29 Qxf2 Rxf2 30 Kxf2 and the end is near. |
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Jul-23-23
 | | An Englishman: Good Evening: Not giving myself any credit for this one. Even after seeing the first few moves, probably would not have played it IRL. Too speculative to me poor brain cells. On the plus side, 6/7 for the week is an above average result. On to Monday! |
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| Jul-23-23 | | King.Arthur.Brazil: Maybe, today the sacrifice is readily seen: 25. Rxe6 fxe6 26. Qxe6+ Kh8? (Black cannot play Rf7 due to obvious 27. Qc8+) 27. Qe5+ Kg8 28. Bd5+ Rf7 29. Bxf7+ Kxf7 30. Qe7+ Kg8 31. Qe6+ Kg7 32. Qxc8. Maybe, there is a check-mate line, but I didn't try. From the above, Black must reply 26... Kg7 (when White cannot answer with 27. Qd7+ Rf7 28. Qxc8?? Qxf2+ and White are the one who lose). Now, the move must be: 28. Qd5+ [if Rf6 29. Re7+ (kf8 or Kh8 29. Qxf6+ and mate next) Kh6 30. Qxf6 Qb1+ 31. Bf1 Qf5 32. Qg7+ Kh5 33. Qxh7+ Kg5 34. Qh4#; also 28... Kf8?? 29. Qh8#]. Therefore, Black answer is forced: 28... Kg8 29. Bd5 Rf8 30. Qf6 Qd2 (what else?) 31. Bxf7+ Rxf7 32. Re8+ Rf8 33. Qxf8#.
Many will find this, of course. |
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| Jul-23-23 | | mel gibson: I chose the Rook sac straight away but from there
I couldn't see a path to a fast checkmate.
Stockfish 16 says:
25. Rxe6
(25. Rxe6 (Rd6xe6 f7xe6 Qe5xe6+ Kg8-g7 Qe6-d7+ Rf8-f7 Qd7-d4+ Kg7-h6
Bg2-d5 Qa2xf2+ Qd4xf2 Rf7xf2 Kg1xf2 Rc8-c7 Re1-e6 b7-b6 Kf2-e3 Kh6-g5
Ke3-d4 Rc7-d7 Kd4-e5 Rd7-f7 Ke5-d6 Rf7-f2 Re6-e5+ Kg5-h6 Re5-e7 Rf2xh2
Re7xa7 Rh2-b2 Ra7-a3 Kh6-g5 Kd6-c6 Kg5-g4 Kc6xb6 g6-g5 c4-c5 Kg4xg3 b3-b4+
Kg3-f4 b4-b5 g5-g4 c5-c6 Rb2-d2 Bd5-h1 Rd2-d1 Ra3-a4+ Kf4-e3 Ra4xg4 Rd1xh1
c6-c7 Rh1-h5 Kb6-a6 Rh5-c5 Rg4-g7 h7-h5) +6.93/51 1016) score for White +6.93 depth 51. |
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| Jul-23-23 | | King.Arthur.Brazil: In the game line, if 40...Kg4 then 41. Be6+ Qf5 42. h3+ Rxh3 43. Qxh3#. |
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| Jul-23-23 | | Mayankk: Interesting Sunday puzzle.
The sacrifice 25 Rxe6 fxe6 26 Qxe6+ Kg7 27 Qd7+ is more like a mid-week solution and is easily spotted. It then gets murky after 27 ... Rf7 since White can't take on 28 Qxc8 given the weak f2 pawn. However White always has a perpetual in hand and so most of us would likely play the sac even if you can't see the full 20 move sequence later. |
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Jul-23-23
 | | sorso: that pawn at a2 was not worth |
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| Jul-23-23 | | parch2: 25.R:e6 fe6 26.Q:e6+ Kg7 27.Qd7 (27.f4 Rfe8 )...Rf7
28.Qd4+ kh6 29.Bd5 is as far as I have. |
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| Jul-23-23 | | raymondhow: After the first four moves, I wanted to play 29.Re4 instead of Bd5. The engine has them almost equally strong, so think I can call it a solved Sunday. |
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Jul-23-23
 | | chrisowen: I'm rot c q jaw its Rxe6 abridge lug its a cuff muff arrive see aeschylus its oh Rxe6 etc; |
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| Jul-23-23 | | agb2002: White can expose the black king with 25.Rxe6 fxe6 (threatens Qxf2+) 26.Qxe6+: A) 26... Rf7 27.Qxc8+ and 28.Qc5 wins a bishop and a pawn. B) 26... Kh8 27.Qe5+ Kg8 28.Bd5+ Rf7 29.Bxf7+ wins decisive material. C) 26... Kg7 27.Qd7+ (27.Qe5+ Rf6, followed by 28... Rcf8, and Black seems to hold) C.1) 27... Rf7 28.Qd4+ (28.Qxc8 Qxf2+ and mate in two) C.1.a) 28... Kf8 29.Qh8#.
C.1.b) 28... Rf6 29.Re7+ wins.
C.1.c) 28... Kg8 29.Bd5 Rcf8 30.Re7 followed by Qf6 seems to win. C.1.d) 28... Kh6 29.Re4 looks winning (29... g5 30.Re6+ Kh5 31.g4+ Kh4 32.Rh6#). C.2) 27... Kh8 28.Qd4+ Kg8 29.Bd5+ as in B.
C.3) 27... Kg8 28.Re7 Qxf2+ 29.Kh1 Qf6 30.Bd5+ wins. C.4) 27... Kh6 28.Qh3+ Kg7 (28... Kg5 29.Qh4+ Kf5 30.Bh3# or 30.Qf4#) 29.Re7+ Rf7 30.Rxf7+ Kxf7 31.Qxc8 wins decisive material. C.5) 27... Kf6 28.Qe7+ Kf5 29.Bh3#. |
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| Jul-23-23 | | agb2002: I missed the simple 28... Qa1+ in my line C.3 and Black seems to hold because g7 is protected and the rook on c8 can chase the white queen. |
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| Jul-23-23 | | jffun1958: Olga analysis says:
34.Qg7+ Kg5 (34. ... Kh5 35.Qxh7+ Kg4(g5) 36.Qh4# ) 35.h4+ Kg4 36.Qd4+ Qe4+ 37.Qxe4+ Rf4 38.f3+ Kh5 39.Rxh7#
yielding an earlier mate |
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| Jul-23-23 | | King.Arthur.Brazil: <abg2002> Your commentary is well presented (as always). However, in your line <C.1.c> if you play 30. Re7, Black can reply 30... Qb1+ 31. Kg2 Qf5 and protect the exposed ♔. SO the best move is 30. Qf6 which didn't allow this check and Black becomes defenseless against Bxf7+, as I showed before. |
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| Jul-24-23 | | agb2002: <King.Arthur.Brazil: <abg2002> Your commentary is well presented (as always). However, in your line <C.1.c> if you play 30. Re7, Black can reply 30... Qb1+ 31. Kg2 Qf5 and protect the exposed ♔. SO the best move is 30. Qf6 which didn't allow this check and Black becomes defenseless against Bxf7+, as I showed before.> Thank you! However, after 32.Rxb7 Black is tied up and will have many problems to stop the c-pawn or to avoid a lost pawn ending, possibilities I forgot while typing the post. |
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sac: 25.Rxe6