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|Jul-16-04|| ||five17: What happens after 43. Ne6? This is my first time posting as it's the first week I've actually solved a few puzzles in a row. I was able to see that the game depended on the knight, but I can't see how it would play out. |
|Jul-16-04|| ||DexterGordon: <five17: What happens after 43. Ne6?> |
I'd think simply 43...Qxf6.
|Jul-16-04|| ||patzer2: Karlzen, appreciate your stronger player improvement in analyzing the possibilities after 43...Qd2 44.Rc8! Bg8 45.Qf5+ Kh8.|
Your followup of 46.Nf6!! Rd8 (46...Rg7 47.Qh7+!! Rxh7 48. Rxg8#) 47.Rc7 with a quick win to follow is a big improvement over my slower winning ideas (46. Rxg8+ or 46. Rxd7+) of going for a decisive endgame.
However, I was wondering what is the followup after your alternate suggestion of 43. Qd2 44.Rc8! Bg8 <(45. Ne7! is simple)> if Black follows up the simple 45. Ne7 with 45...Rxe7.
After 43. Qd2 44.Rc8! Bg8 45. Ne7 Rxe7, seems to me that Black gets a draw by perpetual following 46. Qxe7 Qxf2+ 47. Kh3 Qf1+ 48. Kh4 Qh1+ 49. Kg4 Qf3+ or gets into an unclear Queen and pawn ending that looks better for Black following 46. Rxg8 Kxg8 47. Qxe7 Qxf2+ Kh3 (with Black having a draw in hand via perpetual with 48. Qf1+! or unclear but slightly better chances after 48. e3!?). Was 45. Ne7 just a quick look at an alternate line, or am I missing something?
In either event your suggestion of 43...Qd2 44.Rc8! Bg8 45.Qf5+ Kh8 46. Nf6!! as your mainline here was definitely a brilliant piece of analysis which I thoroughly enjoyed. Thanks again!!
|Jul-16-04|| ||kevin86: I guess that's this week's theme:moving a piece that blocks communication between enemy pieces and creates side threats as well. |
|Jul-16-04|| ||karlzen: <patzer2>, Thanks for your kind words.|
I believe, 43...Qd2 44.Rc8 Bg8 45.Ne7 Rxe7 46.Qxe7+ (+)<- followed by a quick mate is good enough! Perhaps you have misplaced the black king?
|Jul-16-04|| ||bob725: Got this as well 5/5.
Key is that you have to look for something that not only protects the pawn F2 but also looks after the queen.
A little complicated.
|Jul-16-04|| ||patzer2: Karlzen, thanks again. After 43...Qd2 44.Rc8 Bg8 45.Ne7!, White does indeed win easily after 45...Rd8 46. Rxd8 Qxd8 47. Qg6+ Kh8 48. Qxg8+ Qxg8 49. Nxg8 Kxg8 50. Kh3 with a won endgame.|
You are correct that 43...Qd2 44.Rc8 Bg8 45.Ne7! Rxe7 46.Qxe7+ leads to a quick mate after 46...Kh8 47. Qf6+ Kh7 48. Rc7+ . My initial analysis of the 43...Qd2 44.Rc8 Bg8 45.Ne7! Rxe7 side variation as leading to a draw was incorrect. Appreciate you setting me straight.
|Jul-16-04|| ||themindset: <kabbyg> well, i just check with fritzy, and he says that after 44.Rc8 that it is a mate in 21.|
so i guess that's not "quick" in your book, but it does involve black immediately giving up his queen to extend the pointless agony. more than reason enough to resign at once.
|Jul-16-04|| ||wasaka: Did anyone else consider 43. Qf5 ? It looked promising to me, but I didn't see a mate directly in sight. |
|Jul-16-04|| ||Rama: No, I was looking at Rd5 which works well except for Qxf6, heh. |
|Jul-16-04|| ||patzer2: <wasaka> Haven't looked too indepth at 43. Qf5+!?, but after 43...Kg7 Black seems to hold the position against any immediate tactical threats, though White is clearly better due to the passed pawn on the b-file. Clearly better though is 43...Nd5!! with strong tactical threats undermining the Black position. |
|Apr-29-16|| ||agb2002: White has a knight and a pawn for a bishop.
Black threatens 43... Qxf6, 43... Qxf2+ and 43... Qxb4.
White can generate coordination problems amongst the black pieces while stopping Qxf2+ with 43.Nd5:
A) 43... Bxd5 44.Qxd4 wins.
B) 43... Rxd5 44.Qxf7+ Kh8 (44... Qg7 45.Qxd5 wins a whole rook) 45.Rxd5 wins
C) 43... Qxd5 44.Rxd5 followed by a massacre.
D) 43... Qxf6 44.Nxf6+ followed by 45.Nxd7 wins.
E) 43... Qd2 44.Qf5+
E.1) 44... Kg8 45.Rc8+ Kg7 (Rd8 and Be8 just delay mate) 46.Qf6+ Kh7 47.Rh8#.
E.2) 44... Kh8 45.Rc8+ Bg8 46.Nf6 wins (46... Rg7 47.Rxg8+ Rxg8 48.Qh7#).
E.3) 44... Kg7 45.Qxd7 Qxf2+ 46.Kh3 Qf1+ 47.Kg4 Qe2+ 48.Kf4 Qf3+ 49.Ke5 Qxg3 50.Nf4 and the king eventually escapes checks.
|Apr-29-16|| ||The Kings Domain: Guessed the move the first time but couldn't figure out why it should be so thought of other calculations. Sheesh, what a simple and deceptive move. One of the best puzzles and a totally winning move for white.|
|Apr-29-16|| ||kevin86: Wow! suddenly black's queen is undefended with no time or place to move it! BRILLIANT!|
|Apr-29-16|| ||thegoodanarchist: I wonder if Krasenkow was Piskov'd about losing|
|Apr-29-16|| ||dfcx: Black wants to trade the queen and white obviously wants to take advantage of it.|
It must be a knight move.
Nd6/g6 are out of question.
Nh5 fails to Bxh5. That leaves
It disconnects the rook from the queen. If black plays
A. 43...Qxf6 44. Nxf6+ forks the rook.
B. 43...Rxd5 44.Qxf7+
B1. 44...Qg7 45.Qxd5 wins the rook
B2. 44...Kh8 45.Rc7 Rd7 46.Rxd7 Qxd7 47.Qxd7 a full queen ahead.
C. 43...Qd3/d2/d1 44.Qf5+ forks the rook
|Apr-29-16|| ||gawain: I'm disappointed in myself. I saw some of the virtues of 43 Nd5 (especially that it allows the queen to defend the f2 pawn and that after 43...Qxf6 it allows White to recapture with a winning fork). However I gave up on it because I didn't appreciate how many threats White has. I kept wanting to make 43 Nh5 work (some of the same virtues as 43 Nf5 has) because of the threat of 44 Qg7#. |
|Apr-29-16|| ||scormus: short and to the point, and no "Lost Highways" to deal with. Instructive puzzle, Nd5 is the sort of move that is very easy to miss playing OTB. I know, Ive been there!|
|Apr-29-16|| ||alphee: Very clever and to be honest I missed it ...|
|Apr-29-16|| ||chrisowen: Organ grinder as am an good d5 loot dancer then as clatter tooth am castle among back at d7 danglers am manages as won ahead fluffer tale
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|Apr-29-16|| ||mel gibson: On move 39 Black had a chance to swap Queens -
he should have with hindsight.
|Apr-29-16|| ||chrisowen: deem any 43.Nd5 queen dancer cancer off an f6 fluffer as whoosh am won closer pin dead d5 loot dancer an er check f6 fluffer again vite
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|Apr-29-16|| ||King.Arthur.Brazil: Easy: Nd5! My analysis repeat those from dfcx. Good, I didn't lose my inspiration, it seems.|
|Apr-29-16|| ||Dr. J: Isn't this puzzle busted by 43.Nd5 Qd2 44.Qf5+ Kg7 45.Qxd7 Qxf2+ 46.Kh3 Qf3+ with a perpetual?|
|Apr-30-16|| ||morfishine: <Dr.J> White has better: 43.Nd5 Qd2
44.Ne3 h5 45.Rg5|
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