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| Apr-21-17 | | Walter Glattke: Agree to RKnight, black pieces offside to any white attack, always  .
e.g. 20.-f5 21.e5 |
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| Apr-21-17 | | wtpy: If 24..gh5 there is the interesting move 25 g3 which wins back the piece after 25..Bg3 26 Qg5 Ng6 27 Qg3 and white looks much better but not sure I see a clear cut win. |
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Apr-21-17
 | | patzer2: Here's some analysis with Stockfish 8:
<22...Bh4?>
The decisive mistake. At least two alternatives offer a near level game and good drawing chances: ( 22...h6 23.f6 gxf6 24.Nf3 Kg7 25.b4 Rh8 = (+0.22 @ 28 depth, Stockfish 8) ( 22...Nd7 23.Nxh7 Kxh7 24.f6 g6 25.Qd2 Nxf6 26.Qh6+ Kg8 27.Bg5 Be5 28.Qh4 Kg7 29.Qh6+ Kg8 30.Qh4 Kg7 31.Qh6+ Kg8 32.Qh4 Kg7 = with a draw by repetition) <23.f6!>
The pawn offer solves today's chessgems.com puzzle with a decisive attack on the castled Black King. Yielding only a smidgen above equality is 23.Qh5? Bxg5 = (+0.25 @ 28 depth, Stockfish 8). <23...h6> This and other tries lose: ( 23...gxf6 24.Nxh7 Kg7 25.Qh5 Rh8 26.Qh6+ Kg8 27.Nxf6+ Bxf6 28.Qxf6 Qxf6 29.Rxf6 Kf8 30.Rxd6 (+3.74 @ 28 depth, Stockfish 8) ( 23...Bxg5 24.Bxg5 g6 25.Qe1 Kh8 26.Qh4 Rg8 27.Rf4 h5 28.g4 Kh7 29.gxh5 Rh8 30.Qg3 Kg8 31.Rh4 c4 32.Kh2 Kf8 33.hxg6 Rxh4 34.g7+ Kg8 35.Bxh4 Qd7 36.Bg5 c3 37.Qxc3 Bb7 38.Qe3 Rc8 39.Bd1 Rc5 40.Bh4 Bc8 41.Bf2 Ng6 42.Qh6 Rc4 43.Ra7 Rc7 44.Bg4 Rxa7 45.Bxd7 Rxd7 46.h4 Rc7 47.h5 (M6, Stockfish 8 @ 84 depth) <24.Qh5 gxf6 25.Nh7 Kxh7 26.Qxh4 1-0> The decisive threats of Rxf6 and Qxh6 are too much for Black. So he resigns. The computer assesses the final position as clearly winning for White (+9.49 @ 29 depth, Stockfish 8) |
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| Apr-21-17 | | gofer: Sorry, I have got chess blindness. I discarded <23 f6 ...>
due to
<23 ... g6>
click for larger viewI couldn't see anyway for White to attack Bh5 without compromising
its own defences. The only attacker seems to be Pg3?! Nothing else
can get close, so the Bh4 just sits there waiting to be of some use. 24 Qd2 h6 (25 Nxf7 Nxf7 or 25 Nf3 Bxf6 Qxh6 Bg7) 24 g3 Bxg5 25 Bxg5 Qd7
24 Nf3 Bxf6
24 Rf4 Bxg5
What is the correct continuation for white?! |
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| Apr-21-17 | | Walter Glattke: 23.f6 g6 24.Qd2 h6 25.Nh7 Kxh7 26.Qxh6+
Kg8 27.Qg7# / 25.-Bxf6 26.Nxf6+ Kh8/g7
27.Qxh6# nice puzzle, but EZ. |
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| Apr-21-17 | | Walter Glattke: Ahem, 25.-g5 26.Nxf8 Qxf8 a "quality" |
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Apr-21-17
 | | morfishine: Nice attack by Svidler |
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| Apr-21-17 | | schachfuchs: Indeed, Svidler was under attack ;-) |
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| Apr-21-17 | | Everett: <morf> think you missed something there... |
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Apr-21-17
 | | kdogphs: I thought Nxh7 followed by a queen move to the h-file... |
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Apr-21-17
 | | ChessHigherCat: I considered the candidates f6, Nxh7 or Qh5 and decided f6 was best, but from there to the solution was more of a Sunday puzzle than a Friday (<CG> must be avenging itself for everybody complaining about how easy yesterday's puzzle was) |
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| Apr-21-17 | | Walter Glattke: They played "tactical". 11.-Nd7!? instead of 11.-Bd7! (U know Ruy Lopez, hey?). And he overturned with 19.-Bh4 instead of 19.-f5, that was too much,
so white had to win here. RKnight found it just before me: 23.-Bxg5 24.Bxg5 g6 is the best, but not good enough then. |
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Apr-21-17
 | | agb2002: The material is identical.
Black threatens Bxg5.
White has Nxh7, Qh5, f6 and Nf3. In the case of 23.f6: A) 23... g6 24.Qd2
A.1) 24... Nd7 25.Nxh7 Bxf6 (25... Kxh7 26.Qh6+ Kg8 27.Qg7#) 26.Nxf8 + - [R vs n]. A.2) 24... Bxg5 25.Qxg5 Nd7 (due to Qh6) 26.Qh6 Nxf6 27.Bg5 wins decisive material (27... Ng4 28.hxg4). A.3) 24... Nc4 25.Qf4 Bxg5 (25... h6 26.Qxh4 hxg5 27.Qh6 wins) 26.Qxg5 followed by Qh6 wins. B) 23... h6 24.fxg7 Kxg7 25.Nf3 looks good for White, in spite of the keeping the same material, due to the damaged black castle. C) 23... Bxg5 24.Bxg5
C.1) 24... g6 25.Bh6 Re8 26.Qd2 with the idea Bf8 followed by Qh6 winning. C.2) 24... Ng6 25.fxg7 wins the exchange.
D) 23... Ng6 24.Qh5 Bxg5 25.Bxg5 with the threat fxg7 looks good for White. I don't have time for more. |
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Apr-21-17
 | | swclark25: from Apr-20-17 puzzle...I left late replies to <morfishine>, <beenthere240>, and <chrisowen>
Good Stuff! |
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Apr-21-17
 | | chrisowen: Viktor f6s fluffus lo cuffs h6s huffout ok viva vows h5s huffon by good 24.fxg7 ive off goodness me oust 1 ive got by boff 24gxf6 plush fountus by gourd 24Bxg5 cfos gourds lot pour on corn heat oust 1 ive got by huffs 25.Nh7 Kxh7 26.Qxh4 jod hoods hop oks vow oust 2 3 ive got rench ave viktor quench hoods motor joke cub cranks var nubs um roz ive monster hoods god ive tid bide pit ok viva vows h5s huffon g7s ive off goodness me ousts 25.Nh7 Kxh7 26.Qxh4 jod hoods hop oks vow oust 2 3 ive got rench got diz h4s hoods pivot pod tip bah hay ye muck cuff by do 22Nd7 co hood duckhung occult v oust equal ive got by ho 22h6 gaffs hoofout oks vow
occult oust equal ive got yo ho 22Bh4 add hoods fave echo around oust 1 ive get ables o ulterior motive curse its i reg way hive yellow now its i wager vim yin hello rehang luv wily von guv realign why regal whiny angrily hew rangy haw yawl lay his vow wry hew girly f6s fluffus viktor joke jostle nose vow fine give never ron roz ive monster hoods vim roz zog plan etc good god dig ive tid pit ok viva vow pob bag bap ah hey ye bah ye men muck follow luv gm raid flow lo cuffs vim us fwiw would f6s fountus won fawn pawn by off 23.f6 h6 24.Qh5 i v off hoodus clod eves bout blow bourbon bunk bonk born bunt bun block blunt bint vim off f6s flockus offer up plys h7s harangue jod h4s hoods overt f6s fiefdom vim
dank and dusty flash flack advance off flood huff found flunk yo ho 22Bh4 add hoods fave; echo around oust 1 ive get ables o girlys hang hives whoosh f6s fluffus hunt; happy by good 24.fxg7 i v off goodness me oust 1 ive got by boff 24gxf6 plush fluffus by gourd 24Bxg5 cfos gourds lot pour on corn heat oust 1 ive got by huffs 25.Nh7 Kxh7 26.Qxh4 jod hoods hop oks vow oust 2 3 ive got rench ave viktor quench hoods ums happy happy ford pos thou puts post puss and pies her runs rums hood hop oks vow hot toddy buff hoof doot cud duck dock doctor quench hoods flush hoof huff clock cluck hud dutch treat och odd chocobloc bootus tar; h4s hoods ums i v off hint food hint vim on green bottle hoodus h7s harangue cub creaks jod hop oks vow h4s hunts off dub rain viktor f6s flushus; |
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| Apr-21-17 | | Walter Glattke: agb 2002 C1, I think for 26.Qd2 Nd7 27.Bf8 Nxf6, but 27.h4 |
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Apr-21-17
 | | Marmot PFL: <In the Keres Variation (11...Nd7), 12...cd is more common than than Svidler's 12...ed and this game shows why. Black gets rolled on the kingside.> Graf (also known as Nenashev) did OK with this until Anand, Topalov, Ponomariov and others found improvements for white. |
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Apr-21-17
| | swclark25: I agreed with <kdogphs> and went with 23)Nxh7 Kxh7 24)Qh5+ Kg8 then 25)f6 gxf6 26)Qxh4... which seems to end up where this game did |
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Apr-21-17
| | chrisowen: <swclark25> And if there is a victory here? |
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| Apr-21-17 | | Walter Glattke: Svidler would not play 25.-gxf6, but 25.-Bxf6 26.Bh6 g6 27Qe2 Bg7 |
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Apr-21-17
| | morfishine: After <23.f6> I wonder if <23...Ng6> saves Black? (covering his Bishop on h4) ***** |
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| Apr-21-17 | | saturn2: <morfishine 23 f5 Ng6> white xould play 24 fxg Kxg 25 Qh5 BxN 26 BxB threatening Bh6 and BxQ |
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Apr-21-17
| | swclark25: <chrisowen> excuse me? Maybe half a victory? |
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| Apr-21-17 | | mel gibson: The computer agrees but black can fight harder: 23. f6 (23. f6 (f5-f6 ♗h4xg5 ♗c1xg5 g7-g6
♕d1-e1 ♔g8-h8 ♕e1-h4 ♖f8-g8 ♖f1-f4 h7-h5 g2-g4 ♔h8-h7 g4xh5 ♖g8-h8 ♕h4-g3
♔h7-g8 ♖f4-h4) +1.92/18 83)
score for white +1.92 depth 18 |
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Apr-22-17
 | | Cheapo by the Dozen: I couldn't make f6 work because of defenses involving ... Ng6. Upon review, those are probably undermined pretty badly by Nxf7. |
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