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Later Kibitzing> |
| Mar-31-15 | | stacase: White on move #29 Take the prize (Black's Queen) or do something else? That's a little puzzle in itself. Over the board I might have pondered that one and figured it out. But today at two in the morning - no such luck. |
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| Mar-31-15 | | gofer: One thing this is not, is a "Tuesday" level POTD. Finding the
combination of Qxd7 and Nf6+ is <Easy>, but it isn't that combination
that wins!
<27 Qxd7 Rxd7>
<28 Nf6+ ...>
Trying to support the queen loses immediately
28 ... Kf8
29 Rxd7! ...
White doesn't snatch the queen instead it creates a mating web
around the king and maintains the threat against the black queen.
Black cannot play Qc8 due to Bh6#, so must trade down into a
losing end game...
29 ... Qxd7
30 Nxd7+ Ke7
31 Nxb8 
White is two pieces up, so black must not try to defend its queen. <28 ... Kh8>
<29 Nxe8 Rxd1>
<30 Rxd1 Bxe5>
<31 Bxe5+ Nxe5>
<32 Nc7>
click for larger viewA six move combination leading to a N+R+3P v N+6P end game! Yep this
is definitely not <"Easy">!. ~~~
Hmmm, not many comments about <28 ... Kh8>... |
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| Mar-31-15 | | morfishine: <27.Qxd7>
<Fusilli> Takes a lot of nerve to play a Benoni at this level ***** |
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| Mar-31-15 | | Nick46: <Geronimo: Saw ...> ditto |
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| Mar-31-15 | | cocker: There's more to this one than I realised. |
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| Mar-31-15 | | Oxspawn: <Geronimo> (& <Nick46>) <"Did not see the money with the threat of Bh6++, so didn't consider white taking the rook on d7 instead of immediately taking the queen back with the knight. Something instructive here.">
I stopped at precisely the same point, puzzled as to how white could emerge winning. This is a really interesting game, but Bh6++ is not obvious a few moves back. Quite challenging for those of us with our Tuesday heads on. Not complaining, just reflecting. |
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| Mar-31-15 | | Once: Yup, that was tough for a Tuesday. |
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| Mar-31-15 | | wooden nickel: Fun puzzle today... hard to top, but another interesting line is
27.Rxc4 bxc4 28.Qxd7 Rxd7 and 29.Nf6+ does the trick!
click for larger view |
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| Mar-31-15 | | zb2cr: 27. Qxd7 ends up winning decisive material for White, no matter whether Black retakes with Queen or Knight. White then follows up with 28. Nf6+, forking. |
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| Mar-31-15 | | whiteshark: Got only the <MJCB> line, d'oh! |
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Mar-31-15
 | | Penguincw: < Feb-25-15 Penguincw: 27.? looks like a good Tuesday/Wednesday puzzle. > Are you kidding me? I sugggested this puzzle a mere month ago, and didn't get it. I got 27.Qxd7 Rxd7 28.Nf6+ Kf8 but missed 29.Rxd7, and instead played the immediate 29.Nxe8 Rxd1 30.Rxd1 Kxe8 that only leaves white "up" a rook for knight and 2 pawns, but 3 of them are connected passed pawns. |
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Mar-31-15
 | | Fusilli: <morfishine: <27.Qxd7> <Fusilli> Takes a lot of nerve to play a Benoni at this level> Or foolishness! :)
Earlier that summer, I had faced the 5...Bd6 line with white (M Sana vs R Yakobashvili, 2009). I thought it was interesting and wanted to try it. But I was pretty reckless with the going for the a-pawn adventure. |
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Mar-31-15
 | | Bubo bubo: The Nd7 defends against the fork on f6. White removes this defender and wins at least a knight: 27.Qxd7! Now a) 27...Qxd7 28.Nf6+ K~ 29.Nxd7 or
b) 27...Rxd7 28.Nf6+, and protecting the queen with 28...Kf8 is futile because of 29.Rxd7! with the threat Bh6# forcing 29...Qxd7 30.Nxd7+ K~ 31.Nxb8. A not-so-easy Tuesday, and the threatened mate in line b) nicely resembles yesterday's puzzle! |
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| Mar-31-15 | | TheaN: Tuesday 31 March 2015 <27.?> White is up the exchange for two pawns. In itself, this compensation normally is not enough. However, in this case it's three passed pawns for black (!) versus none for white. In a positional endgame, white will lose this. However, that's why this is a puzzle. White shatters the compensation for black with a combination winning a piece, going a rook up. <27.Qxd7!> the fork on f6 screams for this move to be played. A) <27....Kf8? 28.Bh6+> is a key feature in the position, now it leads to mate. <28....Kg8 29.Qxe8# 1-0>. B) <27....Qf8 28.Nf6+ Kg7 29.Qd8 > declining is not an option: white threatens Bh6+ and after 29....Qxd8 30.Rxd8 both Rg8# and Rxb8 cannot be parried. C) <27....Qd7> inferior to the rook capture, because the queen is vulnerable over the d-file as well. <28.Nf6+ Kg7 29.Rxd7 > if 29....Bc7, 30.Ne8+ . After a rook trade the endgame is hopelessly lost. D) <27....Rxd7 28.Nf6+> three options: D1) <28....Kg7? Nxe8+ > is with tempo so the rook falls too D2) <28....Kh8?! Nxe8 > black has no compensation. That said, this is
probably black's best option given the third alternative loses to a nice move. D3) <28....Kf8> protecting the queen, trying to avoid material loss. It does lose by force due to <29.Rxd7!! > and black has no adequate defense against Bh6#. |
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Mar-31-15
 | | chrisowen: Hanger d7 true delight for light have mack,
joust f6 am in aim good queens a gog quip in d7 and all at place in a jiffy bag g4 up ply in lights eye ball at head d7 on key have or knight then dares f6 light in ascendancy comes a piece ahead rook for duo pawns or bishop extra shave tete clean am b8 ulterior motive d7 passed down as hatch in hoof huffle and shuffle go build f6 a bridge river steed flip post mortem reveals 8e an error had really a sight at f8 in sink mad fang pad e8 one error allows light a pounce d7 fades f6 light wins a fetch in a wave sparks d7 rook up holy in light dams
sad queens a fag pin e8 would be a tad stadium fillers f8 keeps a piece intact and roughly level oh drome and good f8 bad e8 stayed glib query lucky strike or mis management rook ko in us agree kaputz d7
rule a river murky am wall ace diss d5 angle f6 a never dig f4 remain vow lecture e8 feel as he lurve f8 rules at better alive no more d7 pedal success eg ment quarter f8 back any queen in-effective sty f4 act fakir school am bind as l0 win ear rave stab back good auld gate a king on a run as, carry h8 in light less better am f8 an fare port of call d7 wins just slightly less productive spark ave g4 alma up pavement rook often eg liege nt lesson d7 an mob cast dim line e8 gives rise a wave longer
bill of rights d7 again first f6 second and light crash in rook d7 as boot ie wins a good germane family around blacks king angled a gun spud for one on flight in aim camp clink line delve efface of cad i drive duos dares dipoff knight queen am got g4 a curious bind a go get dances d7 away in fly hood wink i oomph a d7 in over dressed it nip in do act up act afraid as booter 26...Qe8 ciao for now cob in cicero queen e7 emperor f8 is occidental dio meo catch i cog flinch i gotcha grin choice i jocular senty clock commotion around kingside a conifer e8 tree i coop ok in ogle d7 in pocket dutiful a feast f6 orchestrate a
croque monsieur in rocket d7 i score cot i cowhorn and bell coxswain stroke d7 knight off etc in coy evermore exacters again erstwhile go droved castle d7 up on time ergonomic over eachways establish essayed
f8 ebullient cover am b8 ecumenial off side gets took in low as have effigies right eminated epi centre equators everyday in do math d5 extricate inter eyeballs fleece hog he goofs e8 eh fang tooth head hug effect rail get flush blink of bank often eh some lie ergo you swine f6 at bottle ive ho bet bounce boshed 26...Qf8 chief incorporate fates at better glide office corridor cicada crick back cloister come thod carry in light corinthians a gateway f8 hoot an ball coitus verdict in
um bless have us d7 cozi snuggles f8 angler i fatefuls and fancifuls farmhand flippant festoons features a tell safe gate ellucidate live rang fervious a flight filament i finesses ash g4 fidgety an, |
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| Mar-31-15 | | kevin86: White can win the queen if not for the knight. So white SACRIFICES his own queen and deals black a fate as bad as death. To avoid mate, black must give up queen AND bishop for rook! OUCH! |
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| Mar-31-15 | | YouRang: I suppose many others quickly saw 27.Qxd7 followed by 28.Nf6+ -- a typical tactic to win a piece. However, the "typical" follow-up doesn't quite work since 27...Rxd7 28.Nf6+ Kf8 allows black to guard the Q and recover his piece.
click for larger view
One has to (1) notice this flaw in the typical plan, and (2) notice the other tactical elements of this position: - With 28.Nf6+, white opened the d-file for his Rd1
- White has a DSB poised to give check at h6.
Upon noticing these things, the correct follow-up is not hard to see: 29.Rxd7!, threatening 30.Bh6#. The best black can do is 29...Qxd7, allowing white to scoop up second piece with another knight fork: 30.Nxe7+ & 31.Nxb8. Resignation is the best option. Good puzzle - a bit of a thinker for Tuesday. :-) |
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| Mar-31-15 | | TheaN: <wooden nickel: Fun puzzle today... hard to top, but another interesting line is 27.Rxc4 bxc4 28.Qxd7 Rxd7 and 29.Nf6+ does the trick!> Very interesting. At first sight it seems white erred in the sense that the d1-rook is now en prise. However, <27.Rxc4 bxc4 28.Qxd7 Rxd7> theoretically, Qxd7 might now be better but that endgame is hopeless <29.Nf6+ Kh8!? 30.Rxd7!> still! Black has nothing better than Qxd7 anyway, due to Rxf7 with Rh7#. After Qf8, Bh6! and the weak back rank decides. Even more striking is this variation in the game line after Kh8, where it's even stronger because white keeps the exchange advantage: <27.Qxd7 Rxd7 28.Nf6+ Kh8!? 29.Rxd7!> is stronger than 29.Nxe8. The most prominent defense other than Qxd7 is <29....Nxe5> after which <30.Bxe5! Qxe5 31.Rxf7> decides: <31....Qc7> is the best defense against Rh7#, yet <32.Rxc7 Bxc7 33.Rxc5 > and it's more than over. |
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| Mar-31-15 | | YouRang: Also fun: If instead of 28...Kf8, black tries 28...Kh8:
click for larger view
Although Nxe8 seems to be the obvious choice, even better is 29.Rxd7! Black has no time to save the queen, e.g.
29...Qc8 30.Rxf7 (Rxh7# threatened)
29...Qf8 30.Bh6! Qxh6 31.Rd8+ Kg7 32.Rg8#
29...Qe6 30.Rd8+ Kg7 31.Rg8#
The best black has is 29...Qxd7 30.Nxd7 Ba7 31.Bh6 |
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| Mar-31-15 | | A.T PhoneHome: Yup, I am blind. Looked at it and wondered "Can't I simply play 27.Nf6+ ?". Of course I didn't pay attention to the Black Knight on d7, eliminating 27.Nf6+ outright so... 27.Qxd7 Rxd7 (because if ...Qxd7 then 28.Nf6+ forks King and Queen and Queen is also attacked by White Rook on d1 so Queen must be lost). 27.Qxd7 Rxd7 is continued with 28.Nxf6 (triple fork) Kf8 and finished with 29.Rxd7. In the ending position Mr. Rodriquez is threatening 30.Bh6+ which is really beautiful stuff! |
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| Mar-31-15 | | M.Hassan: "Easy"
White to play 27.?
White has a Rook for a Knight+2pawns
A Queen sac will bring win for White:
27.Qxe7 Rxe7
28.Nf6+ Kf8
29.Nxe8 Kxe8
30.Rxd7 Kxd7
31.e6+ Kxe6
<if 31...Kc8 to protect bishop, 32.exf7 and will promote> 32.Bxb8
White has the material advantage.
===
Obviously, the game lne is much neater! |
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| Mar-31-15 | | BOSTER: < Fusilli: I saw the sac. coming>.
" Play with pieces", not only with one gueen's knight: Nb8-Nd7-Nb6-Nc4-Nxa3-Nc4.
As a result, black rook a8 and bishop b8 were very disappointed. |
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| Mar-31-15 | | Gypsy: <M.Hassan: "Easy"
White to play 27.?
White has a Rook for a Knight+2pawns
A Queen sac will bring win for White:
27.Qxe7 Rxe7
28.Nf6+ Kf8
29.Nxe8 Kxe8
30.Rxd7 Kxd7....>
Intermezo <29...Rxd1 30.Rxd1 Kxe8> could be a problem here. |
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| Mar-31-15 | | CHESSTTCAMPS: Black has a knight plus two pawns for a rook with 3 connected passed pawns on the queenside which would seem to be more than adequate compensation in material. However, white can set up a royal fork to win decisive material: 27.Qxd7!! (2 for correct analysis only) and now:
A) 27... Rxd7 28.Nf6+ Kf8 29.Rxd7! (29.Nxe8?? Rxd1+ 30.Rxd1 Kxe8 and black is still alive) Qxd7 (Qc8|e6 Bh6#) 30.Nxd7+ K-moves 31.Nxb8 leaves white up R+B for 3 pawns. B) 27... Qxd7 28.Nf6+ Kg7 (Kf8 29.Nxd7+ is worse) 29.Nxd7 Bc7 30.Nxc5 and the extra rook for a pawn is a winning advantage. Time for review.. |
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| Apr-01-15 | | patzer2: Got the "no brainer" 27. Qxd7 for my Tuesday puzzle try, but missed the follow-up 27...Rxd7 Nf6+ Kf8 29. Rxd7! The "thinking move" 29. Rxd7!, which I missed when considering 27. Qxd7, was of course the main point of 27. Qxd7!! My initial planned follow-up 29. Nxe8? gives Black equality or better after 29. Nxe8? Rxd1 30. Rxd1! Kxe8 31. Rd5! Ba7 32. Bg5! Bb6 33. Kf3! a5  (Deep Fritz 14 @ 25 depth). After 29. Rxd7!, play might continue 29... Kg7 (29... Qxd7 30. Nxd7+ Ke7 31. Nxb8 a5 32. Rxc4 bxc4 33. Nc6+ Ke6 34. Nxa5 ) 30. Nxe8+ Kf8 31. Nf6 Kg7 32. Rxc4 bxc4 33. Rd8 Bxe5 34. Bxe5 Kh6 35. Bc3 a5 36. Bd2+ Kg7 37. Bg5 a4 38. Rg8#. P.S.: Earlier, the odd Deep Fritz 14 suggestion 16...Bb6!? = to might give Black a slightly better game. |
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Kibitzing
sac: 27.Qxd7