< Earlier Kibitzing · PAGE 2 OF 2 ·
|Aug-09-15|| ||An Englishman: Good Evening: A position with the characteristic pawn structure from the KIA vs. the French Defense. In this formation, at least five sacrifices are possible (Neg5, Nfg5, Bxh6, Bg5 and Nf6+), but depending on the specific position, all five could prove unsound!|
Here I chose the correct move, thinking that 15...gxf6; 16.exf6,Qd8; 17.fxe7,Qxe7 would prove advantageous. I also saw that after the combination's second move, White threatened 17.Qe4! with mate on h7. Thus ending the first 7/7 week I have had in a long, long time.
|Aug-09-15|| ||diagonalley: well, finding the first move wasn't hard... but i completely failed to anticipate 15..... K-R1 (and in any case would never have dreamt of white's incredible follow-up!) <diagonalley>: nul points :-(|
|Aug-09-15|| ||mel gibson: Deep Rybka 4 64 bit gives the same move:
but gives only a score of +1.39 for white with the following moves at depth 19:
17 Ng5-e4 b5 x c4
18 d3 xc4
Therefore the game is almost a draw.
|Aug-09-15|| ||Gilmoy: I actually toyed with 15.Ng5 <first>. It's worth a think, and then you can prune it with proof.|
So it was in my smite-board. <15.Nf6+> is thematic, Black won't accept, and then do the other Knight. It feels right for many reasons, briefly: if he <cannot> accept your 1st sac, then you <must> sac again before he regroups. White's dense pack uncoils with <piece flow> that just replaces any sacs, and Black will run out of pawns way before White runs out of K-side attack.
|Aug-09-15|| ||Afroim: I don't see big advantage if 15... N:f6 and then 16... Bd7. Is it correct?|
|Aug-09-15|| ||whiteshark: I tried so hard that blood had coming out of my eyes, blood coming out of my wherever...|
|Aug-09-15|| ||patzer2: Today's Sunday puzzle solution 15. Nf6+! and it's follow-up 15...Kh8 16. Ng5 reminded me of MC Hammer's song lyric "You can't touch this."|
Got the first two moves in the combination easy enough, but was surprised by 17...e5. So it took me a while to see 18. fxg7+ Kxf7 19. Qg4!
In the final position, it's mate-in-five after 22...f5 23. Bd5+ Rf7 24. Qg6+ Kh8 25. Qxf7 Nf6 26. Qf8+ Kh7 27. Qh6#.
Black's decisive mistake was the casual 14...Rb8??, allowing 15. Nf6+! Instead, 14...Qb6 = or 14...Bb7 = hold the position.
P.S.: Where this Sunday puzzle gets super difficult is trying to figure out a win after Black's best defense 16...g6 with 17. Ngh7! or 17. Nge4 .
|Aug-09-15|| ||wooden nickel: <whiteshark: I tried so hard that blood had coming out of my eyes, blood coming out of my wherever...>
LOL :-) ... I cracked up on that one!
The leading move 15.Nf6+ wasn't too hard since the Black King's defenders are a bit off base.
I'll just pretend I got 16.Ng5!... at least I enjoyed it.
click for larger view
The sideline 15... Bxf6 16.exf6 e5 would give a new puzzle
White to play and win!
click for larger view
|Aug-09-15|| ||morfishine: I had <15.Nf6+> and continued <15...Kh8> but then went straight for <16.Qe4> when Black obliges with <16...g6> and now <17.Ng5> but this move-order isn't as good as what was played, namely <16.Ng5> and misses the important aspect of leaving the Queen on <e2> enabling continued immediate access to the h-file :(|
|Aug-09-15|| ||Tiggler: After 15. Nf6+ Kh8 16.Ng5 g6 white has nothing better than 17.Nge4 and black is still in the game.|
|Aug-09-15|| ||morfishine: <Tiggler> Interesting post, move-order. I wonder if White has time for 17.Ngh7 (instead of your 17.Nge4) trying to reduce clutter while also trying to nab an exchange
click for larger view
At least for me, these busy positions are hardest to visualize
|Aug-09-15|| ||chrisowen: A buff f6 feebles b8 ave cross bullshine off
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|Aug-09-15|| ||chrisowen: down as hope ever efface off hive flinch as hag under effort it team in kip dance rad dark i drive drain under rudder mean as race crevice cut it to chase ave couple again oud l'west it trail in bap call vow cut it touch in couple under augers well g5 lines f6 light it team in as win not it inter glide f6 i carafe rove pour on scorn b8 bandovers am i c4 grab calls am good an equal flurry it zum again ze vow quad cradle force an equal game spark of b8 bandwagon bad and allow f6 light it team in dins am va va voom snide snared good lip c4 bad call b8 bushyeyes and bushyhead allow f6 gel off find luck mc agig
it tiaras have aids i e2 and push e5 wins am g7 and g4 angle gangway aids bade hxg5 line wobble wins have in eight it team in king's a
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it task in am gab i clink i go focus and focal f6 point it trade in bad for black angle am harangues king's face pin h8 ash i g7 ar good goal angle g6 and can play am while away same pieces and pawns yet it task in uphill black on as have ropes again as have robs again room am good g5 line wobble again f6 instead angle g6 an good quad grip ok ave over really cream surrounds black king's am pave flow flap engage face pin h8 line key in live e5 push an dubious call i wag black on ropes as have rob c4 calls am good bad b8 bandwagon back olive grove over
lines f6 light it team in as wins am gas deed ash head i huffle and shuffle go build re apply licker c7 and ash farm as I'm afraid bad bind b8 arrives be hoof ash c4 amp good an equal i do an banal gain lip eddy am wave bad b8 bullrushy am black ash c4 and equal i bluff 15.Nf6+ angle affable mission success again fob focus again focal point it ok ave over not by a long shot it team in rove spark cannon fodder pov offer ground vociferous again fog as flung hoof foil by joffi flock |
follow in foam flop fop fin focus quoff back mercurial gain swerve for ufo foreign as vociferous again fowl play in oaf boffin ive coffin doff my cap again over g5 aloof gleans again poof magic hat it team in faraway over am fashion angle flubber again flicker ala show an finders keepers ave in fluffer again faghorn lines finesse swerve flocker and ive familys again forgive longer bill of right it task in flipper ave in fumbles ave foxtrot it ok ave over fit team i flaunt it ok ave over fat it trade in fleet it of foot it team ave fought it ok ave over off ghoul and ghoulash flog flash fig fish b8 gaff flush aim c4 amp in ar good again huff gift it team in over quad goof flesh affable hags rooks not needed inter glide it was in vow ave gash affinty ramble give manage have yin divide if off filament it team in over i sides 15...Kh8 16.Ng5 Bxf6 again fluffer am good as i devine
|Aug-09-15|| ||chrisowen: 16...g6 17.Nd5 Qa5 18.Nxe7 Nxe7 19.Ne4 equal and have cream has again pieces around black monarch eg win king's a pave flow flap engage
face pin h8 cream pieces win i fluffer 17.exf6 e5 an as efface off i inserve 17...Nce5 18.fxg7+ am glib gangways again i gasheads ave bye ghoul as hive guffaws again i vow and grinders ave gag glowworm an have i harangue 18...Kxg7 19.Qh5 bxc4 20.Rxe5 Qxe5 21.Bxe5+ hand ebbers again line efface off an ebbs away elegys wine energy rabble give elines again be i proof an i 21...Nxe5 22.Nxe6+ i hash effaces off an elegies soar am good card it team in over ash i ecumen and be eddyers a wave egghead gives element it team in over an of 22...Bxe6 23.Qxe5+ 4 clean good pawns ahead and easily am won game i harangue 18.fxg7+ am glib gangways walk am plank i gasheads again i glorious ascension swerve gobblers arrive generals back up again as have spark i glessons slide away in cream a feelgood 18...Kxg7 19.Qh4 hxg5 can win as hive in eight it team in over i rufflers 19...Kf6 20.Bd5 Ke7 21.Nxf7 Rxf7 22.Qe6+ as hash effaces off again elegies soar i have
ecumens and padre line d5 angle emories am bored padre line d5 ive gain ables epicure as on sense am wave cruises ables errands am boy
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bill of right it team in over g7 as judge show am beyond move aline long conga sell fang lip wallowing it team in over do i pov quipper as palms i remember am la ship choice band on key in cream as hive leeway in case ha back winch f6 linch fluffer again f6 regain i prefer among g6 as given chances am as had hive snip pop a query brave in spark v
back mould f6 do va fiefdom in over said give bain boob hood hang basic error am b8 insound |
bandwagon ash c4 and equal in refinesses again skim palm cone it ok ave over am flurry it was in would as not inter glideoff angle
f6 an wins we have clean g6 maybe gangway am walk again skim play hobbled yay agag hash jig quip palms i remember back pond band i
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|Aug-09-15|| ||patzer2: <morfishine><tiggler> Running Deep Fritz 14 x 64 on a 3.6 GHZ i7-4790 with 16 GB RAM on a long move-by-move look to at least 21 depth on each move yields a likely win for White after 16...g6 17. Ngh7!:|
<16... g6 17. Ngh7!> Diagram below:
click for larger view
<17...Rd8 18. b3 bxc4>
[18... Rb6 19. Nxd7 Bxd7 20. Nf6 Kg7 21. h5 Rh8 22. Qg4 Qd8 23. hxg6 fxg6 24. Rac1 h5 25. Qg5 Be8 26. Be4
Bf7 27. Kg2 bxc4 28. dxc4 Nxe5 29. Qxe5 Bxf6 30. Qxc5 Rb8 31. Bxb8 Qxb8 32. Qc6 h4 33. Qb7 Qxb7 34. Bxb7 hxg3 35. fxg3 e5 36. Bd5 to (+1.98 @ 25 depth);
18... Kg7 19. Qd2 Kh8 20.
Bxh6 (+3.00 @ 20 depth)]
<19. bxc4 Rb6 20. Nxd7 Bxd7>
[20... Kxh7 21. Nxb6 (+3.05 @ 21 depth)]
<21. Nf6 Rdb8>
[21... Kg7 22. Rab1 Rb4 23. a3 Rxb1 24. Rxb1 Rc8 25. Qd2 (+2.51 @ 24 depth)]
<22. Nxd7 Qxd7 23. Bxh6 Kg8>
[23... Kh7 24. Bf4 Kh8 25. h5 g5 26. Bc1 to (+1.65 @ 23 depth)]
<24. h5 Qe8 25. Qg4 Bf8 26. Bxc6 Qxc6 27. Bg5 Qe8 28. Qh4 Qc6 29. Bf6 g5 30. Qg4Kh7 31. Bxg5 Bg7 32. h6 Bh8 33. Be7 Re8 34. Bd6 Rg8 35. Qh5 Rb7 36. Rab1 Rd7 37. a4 Bf6 38. exf6 Qxd6 39. Re5 Rg6 40. Rxc5 Qf8 41. Qe5 Qd6 42. Qxd6 Rxd6 43. Rb7 Rxf6 44. g4 Rxh6 45. Rxf7+ Kg8 46. Re7 Rd8 47. Kg2 Rb8 48. f3 Rf6 49. Rcc7 Rb2+ 50. Kg3 Rd2 51. Rg7+ Kh8 52. Rh7+ Kg8 53. Rcg7+ Kf8 54. Ra7 Kg8 55. Rhg7+ Kf8 56. g5 Rf5 57. Kg4 Rh2 58. f4 Rh1 59. a5 > (+9.68 @ 23 depth).
P.S. I'm far from certain about the accuracy of this Deep Fritz 14 assessment, but it's enough to convince me 16...g6 17. Ngh7! to gives White excellent winning chances.
|Aug-09-15|| ||agb2002: The material is complete.
White's dark square bishop x-rays the black queen and the light square bishop does the same with the knight on c6. This suggests 15.Nf6+:
A) 15... gxf6 16.exf6 Bd6 17.Nxd4 Nxf6 (17... Nxd4 18.Qg4+ and 19.Qg7#) 18.Nxc6 Rb6 19.Ne5 with an extra pawn and a much better position (threatens Bxh6).
B) 15... Kh8 16.Qe4
B.1) 16... gxf6 17.exf6 Bd6 18.Bxd6 Qxd6 19.Qg4+ and 20.Qg7#.
B.2) 16... Nxf6 17.exf6 Bd6 18.Bxd6 (18.fxg7+ Kxg7 19.Bxh6+ Kxh6 20.Ng5 f5 21.Qxc6 Qxc6 22.Bxc6 bxc4 23.dxc4 Rxb2 does not seem to be advantageous) 18... Qxd6 19.fxg7+ Kxg7 20.Qg4+ looks good for White.
B.3) 16... g6 17.Bxh6 is very bad for Black.
|Aug-09-15|| ||patzer2: <agb2002> After 15. Nf6+ Kh8 16. Qe4? gxf6 17. exf6 Bd6 18. Bxd6 Qxd6 (diagram below)|
click for larger view
19. Qg4 is not with check. If 19. Qg4, then 19...Nxf6 .
|Aug-09-15|| ||wooden nickel: <chrisowen: 16...g6 17.Nd5 Qa5 18.Nxe7 Nxe7 19.Ne4 equal and have cream has again pieces around black monarch eg win king's a pave flow flap...>
I always enjoy your circumlocution and grandiloquence which also gives a good answer to the 16... g6 variation!|
|Aug-09-15|| ||patzer2: <wooden nickel><chrisowen> Great find on the interesting 16...g6 17. Nd5!?|
Fritz 14 analyzes 16... g6 17. Nd5!? exd5 18. e6 Bd6 19. Nxf7+ Rxf7 20. exf7 Kg7 21. Qe8 Nf8 22. Qxf8+ Kxf8 23. Bxd5 Be6 24. Bxd6+ Qxd6 25. Rxe6 Qxe6 26. Bxe6 Ne5 27. cxb5 Rxb5 28. b3 Rb6 29. Bc4 Nxc4 30. dxc4 Kxf7 31. Re1 (+ 0.70 @ 29 depth).
|Aug-09-15|| ||chrisowen: <wooden nickel> <patzer2> Said as wander swerve ignoble mission success glorious ascension back mind a good one|
|Aug-09-15|| ||Cheapo by the Dozen: I gave up so quickly that I didn't see the discovered attack on the queen from exf6.|
|Aug-09-15|| ||Coriolis: As a guess I went for: 15. Nf6+ Kh8 16. Ng5 g6 17. Nxe6 fxe6 18. Qg4.|
|Aug-09-15|| ||morfishine: <patzer2> Thanks for the analysis: This is not an easy position to break down visually. <17.Ngh7> is purely an OTB intuitive move that I would play for the reasons given: If Fritz awards an (!) I'll take it! :)|
|Aug-09-15|| ||Tiggler: <morfishine> and <Patzer2> After 15.Nf6+ Kh8 16.Ng5 g6 17.Ngh7, the best continuation appears to be (found with help of Houdini 1.5):|
17.. Rd8 18. b3 bxc4 19. bxc4 Nxf6 20. Nxf6 Bb7 21. Bxh6 Qxe5 22. Qxe5 Nxe5 23. Rxe5 Bxf6 24. Rxc5 Bxg2 25. Kxg2
click for larger view
White has a protected passer to the good, but still a lot of work to do.
|Aug-10-15|| ||agb2002: <patzer2: <agb2002> ...|
19. Qg4 is not with check.>
Yes, thank you. I noticed this in another line but forgot this one.
The puzzle deserved much more time than I had.
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