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| Apr-10-17 | | AlicesKnight: 8.Qxd4 can be played. If.... Nxd4 then 9.Nf6+ Kf8; 10.Bh6#. So Black must leave the Q alone and castle, but then 9.Nxe7+ Nxe7' 10.Qe5 threatens a piece and possibly mate on g7. |
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| Apr-10-17 | | Infohunter: So even granting that I did not see White's best play, the statement that Black still loses, even if he declines the Queen, holds good. |
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| Apr-10-17 | | saturn2: The bishop guards f6 where Nf6 followed by Bh6 yields mate. Therefore 8 QxB If 8..NxQ it is our mate
If 8..Rg8 9 Nf6+ Kf8 10 Bh6 Rg7 11 BxR+ and then the white queen withdraws from d4 |
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| Apr-10-17 | | agb2002: Overworked. |
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Apr-10-17
 | | radtop: Black tied himself up in a Gordian knot and White sliced and diced him. |
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| Apr-10-17 | | Once: More interesting than it looks. At first glance it's a straightforward queen sac leading to a knight and bishop mate. It's the sort of "sucked dry" solution that I tend not to comment on these days. But we shouldn't forget that white starts the position a piece down. This means that black doesn't have to take that impudent white queen. He could try to defend against the mate and emerge with level material. But how? Here's the position after 8. Qxd4
click for larger view8... 0-0 is slightly funky because not everyone will know that you can castle when your rook is attacked. But it fails to 9. Nf6+ Kh8 
click for larger viewNow 10. Ng4+ is Walter Glattke's excellent find, but 10. Qc3 also works just fine, saving the queen and keeping the pressure on. So if 8...0-0 doesn't work, is there anything else? Fritzie finds 8...f6 9. Qxf6 (Nxf6+ is also possible) 9...Rf8
10. Qg7 d6
click for larger viewBlack's position is perfectly horrible, but he's not been mated. But 8...Nxd4 is a miserable move to make, totally missing the upcoming mate. At least roll the dice with 8...0-0 or 8...f6. They might not work, but either is better than being splattered immediately. |
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| Apr-10-17 | | Anjeneyar: Hi Once
10. Ng4+!! Is my find and it mates by force within the move 13.
Surely 10. Qc3 may keep the pressure but can it mate in move 13? |
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| Apr-10-17 | | whiteshark: You are NN and play with the black pieces here. <7. ... >?
٩(̾●̮̮̃̾•̃̾)۶ |
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| Apr-10-17 | | Cheapo by the Dozen: I pondered the ... f6 defense for a while before deciding White had a great game in all lines. Technically, the puzzle works, since it's pretty obvious that all defenses are miserable for Black. But this is not the purest of Monday puzzles. |
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| Apr-10-17 | | morfishine: Seen this one: <8.Qxd4> and Black cannot take the Queen due to mate-in-two. Other moves leave Black with a shattered and hopeless position Who is this NN guy anyways?
***** |
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| Apr-10-17 | | Once: <Anjeneyar> You are quite right. My bad. You spotted it first. Have a virtual cookie. |
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| Apr-10-17 | | scholes: Karjakin fell for similar trap in world blitz championship |
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| Apr-10-17 | | Walter Glattke: The FRITZ is really cute, but 8.Qxd4 f6
9.Qc3 will always bring advantage for white, maybe 9.-Nxd5 10.exd5 Qe7+ 11.Kd2
Ne5 12.Re1 - and harder attack than after 9.Qxf6. |
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Apr-10-17
 | | moronovich: Hasn´t this combi bee shown a couple of times before on CG ? |
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Apr-10-17
 | | FSR: Cf. D Andreikin vs Karjakin, 2010 |
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| Apr-10-17 | | Abdel Irada: ∞
Black has dangerously weakened the dark squares on his kingside, and this allows the first player a quick knockout with <<+> 8. Qxd4! ... > If Black doesn't recapture, he's positionally busted. But if he does, this happens: <<+> 8. ...Nxd4
9. Nf6+, Kf8
10. Bh6# >
∞ |
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| Apr-10-17 | | Walter Glattke: I have proofed 8.Qxd4 f6!, but 8.Bxe7 Nxe7 9.Qxd4 Rg8 10.Nf6+ Kf8 11.Nxh7+ Ke8
12.Nf6+ Kf8 13.Nxg8 Kxg8 14.Bc4 is maybe stronger. |
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| Apr-10-17 | | Walter Glattke: 8.Bxe7 Bxf2+ 9.Kxf2 Nxe7 10.Qd4 ...
must play 10.-Rg8, so it seems. |
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| Apr-10-17 | | TheTamale: Really? NN wasn't the least bit curious why a master was freely giving up a knight in the opening...??? |
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| Apr-10-17 | | patzer2: Interesting Scotch opening game for today's Monday puzzle (8. ?). Here's some analysis of this short game with Deep Fritz 15 and the Opening Explorer: <1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nge7> Though it's seldom played, 4...Nge7  appears to be a playable alternative to the far more popular Scotch lines 4... Nf6 = and 4... Bc5 =. We saw this opening line earlier in our Jan 15, 2017 Sunday puzzle game D Andreikin vs V Forsberg, 2016, which featured a neat win by White after the positional pawn sacrifice 25. c5! <5. Nc3 g6?> This is Black's decisive mistake. Instead, Black can hold it near level after 5... Nxd4 6. Qxd4 Nc6 7. Qe3 to = as in White's win in Morozevich vs Hjartarson, 2015 or Black's win in Y Zhou vs A Khandelwal, 2011. <6. Bg5!  > (+2,21 @ 21 depth, Deep Fritz 15) With this strong move (6. Bg5!), the computers indicate White is already winning. <6...Bg7> This is Black's best reply in a bad position. <7. Nd5! > (+2.21 @ 21 depth, Deep Fritz 15) This follow-up is the only winning move to assure White's victory after the previous, strong and decisive move 6. Bg5! <6... Bxd4??> Though Black is already losing, this bad move makes it much easier for White. Putting up more resistance is 7... Nxd4 8. Bxe7 Qxe7 9. Nxe7 Kxe7 10. c3 Nc6 11. Bc4 d6 12. O-O (+2.77 @ 18 depth, Deep Fritz 15) or 7... f6 8. Nxf6+ Bxf6 9. Bxf6 Rf8 10. e5
(+1.99 @ 17 depth, Deep Fritz 15.)
<8. Qxd4!> With this Queen sham sacrifice, solving today's Monday puzzle, White wins decisive material after 8...f6 9. Qxf6 (+7.69 @ 19 depth, Deep Fritz 15) or mates as in the game continuation <8...Nxd4 9. Nf6+ Kf8 10. Bh6#> |
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| Apr-10-17 | | Walter Glattke: To patzer 2, Steinitz played 4.Nxd4??
Qh4!, and I think, Scotish can only be played as Gambit, the2N and4N Version both.
Maybe Deep Fritz 15 thinks the same about 4.Nxd4- I suppost, 4.-Qh4 is  . |
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| Apr-10-17 | | stst: A few options. While BxN harassing the Q will bring some exchange up, QxB is heavily depressing to choke.
8.QxB if NxQ, 9.Nf6+ is devastating, for Kf8 ==> Qh6#
Else if Rg8, Qc5 is also very pressing on e7; or,
directly BxN or Nf6+ will bring exchange up as well. |
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Apr-10-17
 | | keypusher: I saw the mate with Nf6+ and Bh6# instantly, but then at the last second I noticed that the bishop was covering f6. Hope I wouldn't have missed that over the board. <Once>
<But 8...Nxd4 is a miserable move to make, totally missing the upcoming mate. At least roll the dice with 8...0-0 or 8...f6. They might not work, but either is better than being splattered immediately.> Not sure I agree. Continuing from your last diagram, 8....f6 9.Qxf6 Rf8 10.Qg7 d6 11.Nf6+ etc. is pretty awful for Black -- if it's a nice day outside, I think I might rather just get checkmated on the spot. |
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| Apr-10-17 | | Carlos0012358: I would say that while Mr. Nomen Nescio is in trouble un any case, 8....NxQ definitely accelerated his demise. Had he resisted the temptation to take white's Q and played 8....f6 he could have lasted several more moves. |
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| Apr-10-17 | | Doniez: I had to think a lot and only saw the bishop mate after minutes. Anyway, miserable defence by black pieces. |
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Kibitzing
sac: 8.Qxd4