< Earlier Kibitzing · PAGE 2 OF 2 ·
|Jun-17-07|| ||MostlyAverageJoe: <lentil> 25. ... Bg4# is faster in the mating line. With 23 Bd4 Bxd4+interposition you mention, both are pure mates. Here's mine, after the interposition: |
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I got this puzzle partially. I expected 23.axb3 gxf6 24. Kf1 (24. Bh3+ Kc7 is useless) and now 24 ... Bc5 forces bishop/rook exchange. White has his rook stuck uselessly, worse pawns, should be easy from now on.
I missed 23.Bg5, and probably would not find 23...Bc2! - amazing move. I doubt I could see it in this position:
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nd much less two moves ahead. I'd probably go for some recovery like Rxg2 with a subseqent Bd5+ skewer.
If anyone can explain just how to find Bc2 in the position above, I'm all ears (clearly, I am blind to something there that says to keep the rook en prise, and move the bishop to where it will remain so).
At least I can console myself by having seen the mate after 22. Nxd2.
|Jun-17-07|| ||THE pawn: Does it get anywhere with 21...Re2+?|
|Jun-17-07|| ||MostlyAverageJoe: <THE pawn: Does it get anywhere with 21...Re2+?> No, 22. Kf3, no more checks, too many black pieces in trouble, and the white will easily gain advantage.|
|Jun-17-07|| ||dzechiel: Black to move, and he has already given up a piece to reach this position. It seems unlikely that we just want our material back, and the weakness of the white king makes that certain.|
The move I want to play is ...Bc5+, but the knight covers that square. So it seems to me that my first move should be 21...Rd2+. White can't take the rook because 22 Nxd2 Bc5+ 23 Kf3 Bd5+ 24 Kf4 Be3+ 25 Kf5 g6#. If white can't take the rook, then moving the king to f3 must also be wrong, as you get the above line, but you don't even get a rook for your trouble. Therefore, white must play 22 Kg8.
The obvious move for black here is 22...Bxb3 threatening to double our rooks on the seventh rank should white recapture.
I confess, that I didn't see white's zwischenzug 23 Bg5 and even if I had, I don't think I would have found the beautiful 23...Bc2! which seems to lead to mate in all variations.
A very pretty ending by Nemet!
|Jun-17-07|| ||banane: It just doesnt look like a very closed sicilian...|
|Jun-17-07|| ||aginis: i think 23...Rxb2 wins as well (although slowly)
23...Rxb2 24.axb3 (Bh3 Be6 Bxe6 Rxe6 ) Bc5+ 25.Rxc5 Re1+ 26.Bf1 bxc5 and white must lose a piece to free up his position.
|Jun-17-07|| ||Gilmoy: Black is down an N, and has gxf6 -- White must have just played 21.Bxf6, forking Rd8 and Bc4 (hence Black's previous move may have been 20..Bc4 to lure White into a hasty discovery). Black has intersections at d2 (defended once) and e2 (undefended). White also threatens Bh3+, and has a dangerous c6 pawn. Both Ks are in some danger, but White's K is exposed to R checks, and Black's K isn't.|
[A] 21..Re2+ 22.Kf3 and Black looks stuck -- Rd3+ fails to 23.Kxe2, other moves don't solve the fork. We're so close to a deadly K-hunt up f ...
[B] Bc5+ looks killer, but the N stops it.
[C] Rd2+ looks killer, but the N stops it.
Bingo :) [C] 21..Rd2+! untouchable: [C1] 22.Nxd2 Bc5+ 23.Kf3 Be2+ (or Bd5+, since the h-pawn already controls g4 -- but let's make a pretty picture) 24.Kf4 Be3+ (to cut g5) 25.Kf5 g6#.
Stepping forward loses to the same K-hunt: [C2] 22.Kf3 Bd5+ 23.Kf4 Rf2+ 24.Kg5 gxf6+ and 25.(R,B)xg2 a piece up.
Hence: [D] 22.Kg1 and Black can just simplify: Bxb3 [D1] 23.axb3 gxf6, or [D2] 23.Bxg7 Bxa2. Either way, White has no good answer for Bc5+ or Ree2.
|Jun-17-07|| ||Gilmoy: <MAJ: If anyone can explain just how to find Bc2 in the position above ...> Probably the thinking would go like this (after 22):|
- Bc5+ is matish -- but White's R (sac) stops it.
- B<sees f1>+ is matish -- but White's R stops Bc4.
- Ba4-b5? Feels too slow (and b3-Rc4 stops it).
- Bd1-e2? White's R stops it.
- Bc2-d3? White's R stops it.
Foo. If he'd just ignore my B for 1 move -- how to distract his R for just 1 move -- <23.Bg5> -- do I need that R? I do not. Thenk yew :)
I think Nemet had <already> (prior to White's 23rd) seen/calculated the power of the B(a6-f1) theme -- so "B tour" was already high on his mental board. Start from that, and Bc2 isn't such a stretch -- it's the only B-tour he had that cuts the R from c5.
Possible pattern hints:
1. An ianchetto (a fianchetto without the 'f'-pawn :) is vulnerable to a parallel-diagonals mate.
2. If you got 2 Bs, always look for the parallel-diagonals mate. (With 2 Rs, it's second nature -- I find Bs aren't as easy to envision.)
|Jun-17-07|| ||Marmot PFL: After Rd2+ Nxd2 Bc5+ it's easy, unfornutaely i missed the line with Bg5 Bc2!.
These difficulty ratings are from a human perspective as computers find mates like this instantly. Other more conceptual problems I sometimes solve that give the machines trouble (although this has much less often nowdays).|
|Jun-17-07|| ||Tacticstudent: WOW! First time ever solved a Sunday Puzzle!
It's my lucky day!
I've just hit the jackpot!
big mama daycare, wait for me!
|Jun-17-07|| ||IMDONE4: <Marmot PFL: After Rd2+ Nxd2 Bc5+ it's easy, unfornutaely i missed the line with Bg5 Bc2!. These difficulty ratings are from a human perspective as computers find mates like this instantly. Other more conceptual problems I sometimes solve that give the machines trouble (although this has much less often nowdays).>|
Well we aren't exactly computers, are we? =)
|Jun-17-07|| ||Brettwith2ts: Good news! I'm still sane!
Bad news: I picked Re2+, totally missing the point of the puzzle.
I'm with <chessmoron>, bring on the Mondays!
p.s. Happy Father's day, to all you fathers.
|Jun-17-07|| ||JG27Pyth: To all solvers: *Applause*
I guess it'll be awhile before I get Sundays! Seeing as Rd2 stumped me (*I had Re2) -- and the continuing text has me sort of staring blindly at the squares making blibbiddyblibiddyblibbiddy noises with my fingers to my lips. :(
|Jun-17-07|| ||gchristopher: I saw the rook sac. I just didn't think white would reject it. The point of the possition was rather clear (thanks to Pachman's and Kotov's books): the white king has little space against the bishop pair and the e-rook. Black has plenty of resources in this possition. I doubt the game after the puzzle position was white's best possible play.|
|Jun-17-07|| ||ruelas007: white blundered in move 15. If <15. ♕xe6 ♕xc6 dxe6 >.|
|Jun-17-07|| ||Marmot PFL: <ruelas007> Wow, that's right. Qxe6+ is such an obvious desparado I can't believe they both missed it.|
|Jun-17-07|| ||Titicamara: Mate in 3.
|Jun-17-07|| ||Timex: This puzzle was insanely hard!!
I didn't see how the rook sac was logical until i saw everyone's kibitzes.
Good job to everyone who got it!!
|Jun-17-07|| ||fm avari viraf: It's a very high tactical game but 21...Rd2+ is the only move that threatens & of course, the Rook is taboo, if grabbed White hastens his funeral. But I couldn't predict the text moves.|
|Jun-17-07|| ||karnak64: Wow. I'm glad 4 stars means "insane," 'cuz that's where this puzzle drove me. The first move is guessable, but after that? Ivan Nemet is either quite a calculator or quite a gambler!|
|Jun-17-07|| ||giovanygc: Sunday, bloody sunday...|
|Jun-17-07|| ||PositionalTactician: A really, really good one!|
|Jun-17-07|| ||Fezzik: This one was too much for me. I got stuck in the 21...Re2+ variations. I even looked at 21...g5 with ideas similar to Bc2 and f5 in the game situation. |
I missed that Black could play Rd2+ because I thought the rook was needed for checks in case of ...Re2+ Kf3.
This was a real brilliancy! Thanks CG.com for a real challenge today. (I just wish I had been up to it.)
|Jun-18-07|| ||kevin86: I liked the ending-the coming windmill has the power of a chainsaw-or a quisonart.|
|Jun-18-07|| ||patzer2: The stunning sacrifice offer 21...Rd2+!! begins a pursuit (King Hunt) combination, resulting in an unusual minority mating attack utilizing the Rook and two Bishops.|
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