< Earlier Kibitzing · PAGE 1 OF 3 ·
|Sep-02-09|| ||ozmikey: Would make a good Wednesday puzzle, this one.|
|Sep-03-09|| ||Sem: 22. b3 looks good to me.|
|Sep-03-09|| ||lopium: Wow! Nice end.
Strange that a 2487 took on c3...
|Sep-04-09|| ||roughstuff: I am asking myself the question of wether in the same position would I have grabbed the c3 pawn, and honestly I would have. It is a brilliant combo and I would not have seen it.|
|Sep-05-09|| ||ajile: lol
The definition of a poisoned pawn!
|Jan-21-10|| ||zenpharaohs: Pretty. I didn't get it right away, it took me a minute to remember to always look to attack f7.|
ozmikey looks to have been just a little bit off, they used it for a Thursday.
|Jan-21-10|| ||offramp: A traditional Stoke-Adams Attack. I'm an Octal. Can you spell the name? Can you spell the name for me?|
|Jan-21-10|| ||NakoSonorense: Got it! Figured out the first two moves within seconds, but I spent some time trying to find the next couple of moves. I wanted to play 26.Nd5 Qxa1 27.Nxf6+, but that doesn't work because after 27...Bxf6, White has to defend the c1 Bishop. It was only when I saw that the Black Queenie was undefended and that I could move the knight out of the way with check that I solved it.|
This is a Thursday puzzle. This is as far as I go. See you on Monday.
|Jan-21-10|| ||OBIT: Hmm... at first glance Black looks better here. This must be one heck of a move.|
Oh, wait, now I think I see something promising: 24. Bxf7+ Kxf7 25. Rxd7+ and now:
(a) 25...Kg8 26. Rxg7+ Kxg7 27. Qxf6+ Kxf6 28. Nd5+ Kany 29. Nxc3 and White is better.
(b) 25...Kf8 26. Ba3+ Kg8 27. Rxg7+ is similar to line a.
(c) 25...Re7 26. Rxe7 Kxe7 27. Qxf6+ and 28. Nd5+ after either recapture.
Finally, if 24...Kh8 25. Ba3 looks good for White. 24. Bxf7+ is my move.
|Jan-21-10|| ||OBIT: LOL, oh yeah, 27. Nf5+ even better. :)|
|Jan-21-10|| ||patzer2: For today's Thursday puzzle solution, 24. Bxf7+! initiates a winning discovered attack with check combination.|
|Jan-21-10|| ||Jimfromprovidence: An elegant alternative solution involving the refusal of the bishop sacrifice by black along with a queen sacrifice by white is the following:|
24 Bxf7 Kh7 Bxg6+ Kxg6 26 Qf5+ Kf7 27 Rxd7+ Kf8 28 Ba3+ Kg8 29 Rxg7+ Kxg7 30 Qxf6+! Kxf6 31 Nd5+.
click for larger view
|Jan-21-10|| ||mrsaturdaypants: Not sure I have this one. My solution is fairly complex and indecisive for a Wednesday. |
I'm drawn, of course, to the f7 square, and have looked for a while at ways to bust through with Bxf7, or to prepare the way with Rxd7. It took me several minutes to notice that the unprotected black queen could be taken by white's queen if white's knight could move to check. And even longer to notice that white had Qh3+ as a resource if black's king ever ended up on d6.
24 Bxf7+ Kxf7 (on any other kind move, 25 Ra3, and white will net a rook and pawn for his bishop)
25 Rd7+ Ke6
(25 Kg8 26 Rxg7+ Kxg7 [26 Kh8 27 Qxf6 ; 26 Kf8 27 Qxf6#] 27 Nf5+, winning the queen)
(25 Kf8 26 Rxg7 )
26 Qh3+ Ng4
27 Qxg4+ Kf6
So, down the prettiest line, white ends with a royal fork. Nice. But if I've analyzed this correctly, black's best off bailing out with 24 Kh8, losing into the exchange and heading toward an ugly but not completely lost ending.
Time to check.
|Jan-21-10|| ||Gilmoy: Thought #1: Black's Q is very exposed. Trap her? Oops -- too many White pieces hanging: Bb3, Ra1. (Of course not 24.Rb1 meek.)|
Thought #2: Qf3 nice pressure on f. Nd5 nice double. Aha --
Eureka #3: <24.Bxf7+ Kxf7> -- drags Black into a self-pin. Feels right. Then 25.Nd5 ^H^H^H aha --
Eureka #4: -- dogpile <25.Rxd7+>. Rare to regain the sac so quickly! (Except that Ra1 still hangs.)
Follow #5: Now 25..Ke6 fails to the skewer-protection pattern 26.Qh3+ -- not hard to figure out, even easier if you remember <Magnus did it a few years ago>.
Thought #6: Qc3 hangs!! N<not d5>+ eats her!
Eureka #7: Black can't interpose on e7, due to a Nf5+.
Follow #8: Black can't defend Bg7, due to a Nf5+.
Follow #9: 25..Kf8 26.Ba3+ Kh8 <White has strong-enough back rank> 27.Qxf6 Qxa1+ 28.Nf1 and Black can't defend g7 <twice>.
|Jan-21-10|| ||estrick: The first thing I noticed was that White's bishop and rook on b3 and a1 are both en prise, and that the bishop is aimed at f7. So, I figured the combination had to involve a sac on f7, since there's no way to save both pieces, other than to play 24. Ra3. While that does threaten 25. Bxf7+ with a discovered attack on the queen, it's a pretty transparent and therefore feeble threat, which could no doubt be parried easily.|
Finally, I saw that if White immediately plays 24. Bxf7+ and Black accepts the the bishop sacrifice, then White can play 25. Rd7+ because the knight on f6 is pinned. It didn't take too long to eliminate 25. . . . Kf8, Ke6, and Re7 as all being bad. It took longer to see that White could keep the attack going after 25 . . . Kg8 by taking the bishop with check and Black wouldn't be able to take back due to 27 Nf5+ with discovered attack on Black's queen from the other direction. I finally concluded that if Black played 27 . . . Kh8, White's queen could join in the attack, and that Black's threats along White's first rank were too slow.
Was somewhat surprised to see that the moves actually played followed that line exactly. Then, it became clear that the combination actually began with 22. b3, which is what drew Black's queen to 'the discovery square,' and got the bishop in position to make the sacrifice. Kind of surprising that a 2400 would fall for that.
|Jan-21-10|| ||estrick: <Jimfromprovidence: An elegant alternative solution involving the refusal of the bishop sacrifice by black along with a queen sacrifice by white is the following:
24 Bxf7 Kh7 Bxg6+ Kxg6 26 Qf5+ Kf7 27 Rxd7+ Kf8 28 Ba3+ Kg8 29 Rxg7+ Kxg7 30 Qxf6+! Kxf6 31 Nd5+.>|
Yeah, I'm surprised that Black accepted the sacrifice. Being down two pieces and a pawn for a rook is obviously losing, but it's a whole lot better than the path that Black took.
|Jan-21-10|| ||sfm: I spent at least a minute on finding yesterdays, looking at Nf6+ first. An off-day?
This one - 4 checks and very few variations (24.Bxf7+,Kh8 25.Ra3 or 24.Bxf7+,KxB, 25.RxN+,Ke6 26.Qh3+) - stares right in your face.|
|Jan-21-10|| ||dzechiel: White to move (24?). Black is up a pawn. "Medium."|
White has issues. Not only is he down a pawn, but his rook on a1 and bishop on b3 are both under attack by the black queen. Yeah, white could play 24 Rb1, saving both pieces, but that leaves him down a pawn with no initiative.
But, a little looking around reveals
24 Bxf7+ Kxf7
Should black decline the sacrifice with 24...Kh7 (or 24...Kh8), white plays 25 Ra3 and is now attacking both the queen and the rook on e8. Nope, black's gotta capture.
Back to material equality. But what to do now? Lots of moves for black, none of 'em good:
25...Ke6 26 Qh3+ Ng4 27 Qxg4+ f5 28 Qxg6+ Kxd7 29 Qxg7+
and white has knight + bishop + pawn for the rook (and black can't play 29...Re7 because of 30 Qxe7+ Kxe7 31 Nd5+ and 32 Nxc3).
25...Re7 26 Rxe7+ Kxe7 27 Nd5+ and 28 Nxc3
25...Kg8 26 Rxg7+ Kxg7 27 Nf5+ and 28 Qxc3
25...Kf8 27 Ba3+ Kg8 28 Rxg7+ etc.
This has got to be it. Time to check.
|Jan-21-10|| ||MaxxLange: checks? bxf7+
other captures? Qxf6 and Rxd7
threats? the Black Qc3 is hanging if we can move the Knight away with check or other tempo
what are Black's threats? if we could pass, Black plays ...Qxa1 for nothing
Bxf7+ followed by Rxd7+ wins a pawn with a crushing position
|Jan-21-10|| ||MaxxLange: ha, the Black Queen does hang to Nf5+ after Rxg7+!!|
|Jan-21-10|| ||VargPOD: Thursday.
Finally got it. 34.Bxf7+ Kxf7 35.Rxd7+ and black can't play Re7, because after Kxe7, Nd5+ and queen drops. g7-square is also a no-no for black king, because Nf5+, so black is busted.
Total 3/4, 10,5/18.
|Jan-21-10|| ||zooter: I think I got this
24.Bxf7+ Kxf7 (forced) 25.Rxd7+ and now
a) 25...Re7 26.Rxe7+ Kxe7 27.Nd6+ wins the queen
b) 25...Kf8 26.Ba3+ followed by line (c)
c) 25...Kg8 25.Nf5 Qxf3 26.Rxg7+ Kh8 27.gxf3 gxf5 28.Bxh6 with a terrific attack
I'm not able to see the full line (c) But i'm sure there are some improvements. Time to check
|Jan-21-10|| ||zooter: aha, I missed the "obvious" 24.Rxg7+. But does 24.Nf5 win too?|
|Jan-21-10|| ||gofer: 24 Bxf7+
24 ... Kxf7
25 Rxd7+ ...
and now black must avoid the king coming to e7, g7, d6 or f6 otherwise the queen is lost...
25 ... Re7 26 Rxe7 Kxe7 27 Nd5 winning
25 ... Ke6 26 Qh3+ Ng4 27 Qxg4+ Kf6 28 Nd5#
25 ... Kg8 26 Rxg7+ Kxg7 27 Nf5+ winning
25 ... Kf8 26 Rxg7 Re6 (Kxg7 27 Nf5+ winning) 27 Rxg6 Kf7 28 Rxf6+ Rxf6 29 Qxf6+ Kxf6 30 Nd5+ winning
So black can't play 24 ... Kxf7, but any other king move will allow 26 Ra3 and that lets
white secure his position and then win the exchange on e8, as the queen is attacked!
24 ... Kf8/Kh8/Kh7
25 Ra3 Qa5/Qb4/Qc5/Qc8
26 Bxe8 winning
White is a pawn and an exchange up... ...now there may be something better than this as white
completely controls the light squares around the black king, but this is still pretty good! I
think it would also depend on which of 24 ... Kf8/Kh8/Kh7 black had chosen....
Time to check...
|Jan-21-10|| ||Dr. Funkenstein: Excellent as usual Dzechiel, except black has no f5 pawn so Qh3+ is curtains as it collects the g4 knight and mates with Nd5#|
Also several people have missed that 25. ...Re7 26. Rxe7+ Kxe7 27. Nd5?? allows Nxd5 whereas 27. Nf5+ collects the hanging Queen on the next move.
25. ...Re7 26. Rxe7 Kf8 seems like Black's best try
although 27. Rb1 Qd3 28. Rxb6 doesn't seem too good as black still can't take on e7 and after 27. Rb1 I think any queen move is answered by Ba3 and white is just up a rook. I could well be missing something too though...
< Earlier Kibitzing · PAGE 1 OF 3 ·