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|Oct-17-15|| ||diagonalley: hmmmm... the themes are fairly transparent, but finding the right move order *AND* spotting the amazing move 21.... R-K6! almost puts this in the 'insane' category|
|Oct-17-15|| ||rickycota: Any lines after 26.Qh5?|
|Oct-17-15|| ||Robespierre: For a player of my skill to get the first 4 moves on a Sat puzzle is quite extraordinary (although I believe there was at least a tincture of luck involved!). After that things fell apart.|
|Oct-17-15|| ||Viennablue: @wildairman: not so sure about this line: how does black continue after 21.Rh3?|
|Oct-17-15|| ||agb2002: The material is identical.
White threatens 19.Rxh4 and 19.Bxa8.
The first idea that comes to mind is 18... Qxh3 19.Bxh3 (19.Bxa8 Ng3+ 20.Kg1 Nxe2+ wins) 19... Bb7+:
A) 20.B(Q)g2 Ng3#.
B) 20.Ne4 Rxh3 21.Kg2 (due to the threat 21... Bxe4+ 22.Qxe4 Ng3+ 23.Kg2 Nxe4) 21... Rd3 with an overwhelming position and the threats Ne3+, winning the knight and Rad8, invading White's field.
C) 20.Nf3 Rxh3 and the double threat Ng3+ and B(R)xf3 seems to win decisive material.
D) 20.Qf3 Bxf3+ 21.Nxf3 (21.Bg2 Ng3#) 21... Rxh3 - + [R].
|Oct-17-15|| ||morfishine: <18...Qxh3> What else? 18...Ng3+ is flawed|
|Oct-17-15|| ||abuzic: 18...?
18...Ng3+ loses after 19.hxg3 Qxg3 20.Rxh8+ Ke7 21.Rh3
18...Qxh3 19.Bxh3 Rxh3 20.Kg2 Re3
A. 21.Qd1 Rg3+ 22.hxg3 Ne3+
B. 21.Qh5 Bb7+ 22.Kf1 Rg3
C. 21.Qf1 Bb7+
D. 21.Qf2 Bb7+ 22.Kf1 Rh3 23.Qe1 Rxh2
E. 21.Qg4 Re1 22.Nf3 Bb7 23.h4 0-0-0
19...Bb7+ is another winning alternative
|Oct-17-15|| ||patzer2: For today's Saturday puzzle solution, I got the obvious 18...Qxh3! with my best guesses following the game continuation all the way through to 21...Re3+! .|
However, in checking it out on Deep Fritz 14, it would seem there's a slightly stronger follow-up which is much simpler.
After <18...Qxh3 19.Bxh3>, Deep Fritz 14 indicates the simple and obvious 19...Rxh3 (-5.55 @ 25 depth) is slightly stronger than the nifty game continuation <19...Bb7+ > (-4.64 @ 26 depth).
One computer checked possibility after 18...Qxh3 19.Bxh3 Rxh3 goes 20. Kg2 Re3 21. Qh5 (21. Qf1 Bb7+ 22. Nf3 Bxf3+ 23. Qxf3 Nh4+ 24. Kh3 Rxf3+) 21... Bb7+ 22. Kf1 Rg3 23. Nxc4 Bf3 24. Nd6+ Nxd6 25. hxg3 Bxh5 26. exd6 O-O-O 27. Bd2 Rxd6 (-5.82 @ 23 depth, Deep Fritz 14) when Black's extra Bishop is easily decisive.
P.S.: For an improvement for White, I'd start early in the opening with the Fritz preference 4. Be2 as in
G Welling vs I Sokolov, 2009.
Where White's game starts to quickly go down hill is after <10. 0-0?!> which allows 10...c4! . Instead, 10. c3 to defend the d4 square and prepare castling would have improved White's survival chances.
|Oct-17-15|| ||PeonNegro: The move 19...Bb7! wins, but 19...Rxh3! is even stronger (wins sooner).|
|Oct-17-15|| ||dfcx: white is attacking both the rook and the queen, but its own king is cornered.|
18...Qxh3 19.Bxh3 (Bxa8? Ng3#) Bb7+ 20.Ne4 Rxh3 21.Kg2 Re3 22.Bxe3 Bxe4+ 23.Kh3 Bxe3
black has three minor pieces against white queen, should be able to win the end game.
|Oct-17-15|| ||Jimfromprovidence: I was not sure why white resigned after the great 29...Bb7 because after 30 Rxb7 Kxb7, below, material is still roughly equal and white can check on e4.|
click for larger view
Then it dawned on me that after 31 Qe4+ Kb8 white cannot defend the mate in one threat ...Be7 without surrendering his queen.
click for larger view
|Oct-17-15|| ||kevin86: The white king gets chased to his death.|
|Oct-17-15|| ||swordfish: Yeah, I got the first few move (for me, on a Saturday, that's encouraging), but Black finished it off in fine style. I wonder whether he calculated the whole sequence before playing 18...Qxh3.|
|Oct-17-15|| ||Tiggler: 18.Qxh3 is forced, as is the reply 19.Bxh3, but then 19.. Rxh3 is much better than the game continuation.|
|Oct-17-15|| ||goodevans: <Jimfromprovidence: ... Then it dawned on me that after 31 Qe4+ Kb8 white cannot defend the mate in one threat ...Be7 without surrendering his queen.>|
I looked at that too. Bad enough for white if he can get N+R for the queen but ...Be7 prevents even that! 32.Qxf5 Be7+ and black gets to keep the R.
|Oct-17-15|| ||Dionysius1: Why so, Tiggler? The move played seems pretty conclusive: does 19…Rxh3 achieve something even better or quicker?|
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|Oct-17-15|| ||King.Arthur.Brazil: Following "Jimforprovidence", after forced move: 30. Txb7 - Kxb7, "Goodevans" said that if 31. Qe4+ Kb8, 32.Qxf5 didn't recovers the rook (e6xf5 33.Kxh4) because of 32. ... Be7+ (which defends the black R at h4). But there's a little more: 33.Q-f6 not gxf6+? 34.Kxh4 But 33. ... Bxf6+! 34.exf6 Th7! and now black wins! (laughs)...|
|Oct-17-15|| ||The Kings Domain: Excellent game by black, he had complete control from the start. Neat finish.|
|Oct-18-15|| ||Tiggler: <Dionysius1: Why so, Tiggler? The move played seems pretty conclusive: does 19…Rxh3 achieve something even better or quicker?>|
Good question, so here is a good answer:
Compare the two lines after
19.. Rh3 20. Kg2 (forced) Re3!
click for larger view
and the game continuation
19.. Bb7+ 20. Ne4 Rh3 21. Kg2 Re3!
click for larger view
In the first position the Rook on E3 is invulnerable and sends the white queen running.
|Oct-18-15|| ||goodevans: <Tiggler: ... Compare the two lines after 19.. Rh3 20. Kg2 (forced)...>|
Is 20.Kg2 really forced? Can't white play 20.Ne4 and doesn't that just transpose?
|Oct-18-15|| ||Tiggler: <goodevans> No. After 20.Ne4 0-0-0! is lethal.|
|Oct-18-15|| ||Tiggler: That line shows that 19.. Bb7+ was a wasted tempo, because the white knight wants to go to e4 anyway.|
|Oct-20-15|| ||CHESSTTCAMPS: Material is even. White skewers the black queen with Rh3, but given white's undeveloped R+B, it is black with the real attack after|
Note that 18...Ng3+?? is losing after 19.hxg3 (Rxg3?? Qxh2#) Qxh3+ 20.Bxh3 Rxh3+ 21.Kg2. The knight can be better employed.
19.Bxh3 Bb7+ and now:
B.20.Qg2 Bxg2+ 21.Kxg2 (Bxg2 Ng3#) Ne3+ 22.Kg3 O-O-O and black has an exchange for a pawn with a strong initiative.
C.20.Nf3 Rxh3 21.Kg2 Rxf3 22.Qxf3 Nh4+ wins
D.20.Ne4 Rxh3 21.Kg2 (otherwise Ng3+) Re3! 22.Bxe3 Bxe4+ 23.Kf2 (Kf1 Bd3 wins) Nxe3! (Bxe3+ 24.Ke1 Bd3 25.Qf3 appears to give white counterplay) 24.b4 Nc2+ 25.Kd1 (Kf1 Bd3) Rd8+ 26.Kc1 Be3+ 27.Kb1 Nd4+ wins the queen.
D.1 23.Kh3 Nxe3 (to protect c4) 24.b4 cxb3e.p. 25.axb3 Ke7!! 26.b4 Rh8+ 27.Kg3 Nf5+ 28.Kg4 Rh4+ 29.Kg5 f6+ 30.ef+ gf+ 31.Kg6 Rh6#
Very challenging - time for review.
|Oct-20-15|| ||CHESSTTCAMPS: In D.1, I was close to the game continuation, but thought 25... O-O-O lost to 26.Qa6+, missing Bb7.|
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