| Aug-18-08 | | ToTheDeath: Brutal stuff. 16...fxe5 17.Qxe7. |
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| Aug-18-08 | | Gilmoy: 7..exf3? <French Defense meets Blackmar-Diemer?> 16.Ne5! <canonical double on f7> You know what they say about 5-on-2 K-side attacks: sac, sac, <3-on-0>, mate. |
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| Jan-22-20 | | sea7kenp: Should we call this the Caro-Kann't? |
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Jul-09-24
 | | chrisowen: yah x f5 no? |
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| Jul-09-24 | | landshark: I saw RxN right away and tried to figure out why it was so tempting - even without the delightful follow-ups, which I missed, it leads to interesting play for W.
But... when your 'Spidey Sense' is tingling, it's really a good idea to look deeper - you might just find something as devastatingly cool as Mr Davies did here. |
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| Jul-10-24 | | King.Arthur.Brazil: King's line is: 17. Bxf5 fxe5 18. Bxg6 Rxf1+ 19. Rxf1 and B king is defenseless. In case of 17... exf5 18. Nxf7 Kxf7 19. Bd2. But the winning is not guaranteed yet. |
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| Jul-10-24 | | mel gibson: I saw that.
Stockfish 16.1 says:
17. Rxf5
(17. Rxf5 (1.Rxf5 exf5 2.Bc4 Qd5 3.Nxf7 Kxf7 4.Bxd5+ cxd5 5.Bg5 h5
6.Bxf6 Be6 7.Bd8 Kg8 8.Qe7 Bf7 9.Qxb7 Nd7 10.Qxa8 Nb6 11.Qxa7 Nc8 12.Qa6 h4
13.Qxc8 Kh7 14.Qb7 Kg7 ) +45.42/37 688)
score for White +45.42 depth 37. |
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| Jul-10-24 | | whiteshark: 17...fxe5 18. Rxf7 Kxf7 19. Rf1+ Ke8 20. Rf8+ Kd7 21. Rf7+ Kd6 22. Bf8+ Kd5 23. Qe4# |
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| Jul-10-24 | | Mayankk: Black Knight seems the best placed piece, forking White Bishop and Queen and also shielding the pawn cover and King. Killing it via 17 Rxf5 seems like an obvious first move. Black has a few options thereafter, all of which likely don't work. A) 17 ... gxf5 18 Qg3+ Kh8 (18 ... Rh7 19 Qxh7#) 19 Nxf7# B) 17 ... exf5 18 Bc4 fxe5 (else 19 Bxf7+ is crushing) 19 Qe7 followed by 20 Qxf7# C) 17 ... fxe5 18 Rxf7 Kxf7 19 Rf1+ Ke8 (19 ... Kg8 20 Rf8#) 20 Rf8+ Kd7 21 Rf7+ Kd6 22 Qe7+ and mate soon. |
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Jul-10-24
 | | Teyss: OTB I would have missed it but as a puzzle it's quite obvious. As per <Mayankk> I saw the same line (C) and missed the fastest continuation: 17...fxe5 18.Qe7! and mate in two. This pretty position requires a diagram and a comment. 
click for larger view
In the game line (B) it's easier to spot 19.Qe7! because the BR is pinned by the WB so the WQ is safe. But in line (C) the pin is just relative and we have a psychological barrier about exposing our pieces. Lesson #9: also look for relative pins, not only absolute ones. |
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| Jul-10-24 | | Mayankk: Hi <Thean> True. 17 Rxf5 fxe5 18 Qe7 is basically the same theme as 16 Ne5 fxe5 17 Qxe7. The Knight can't be taken as Queen infiltrates and then its game over. |
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Jul-10-24
| | Teyss: Hi Mayankk,
I'll take as a compliment you're confusing me with TheaN. But please don't forget to capitalise the "N" else he'll get upset.Anyhow, just wanted to slightly correct my post: in the diagram above the BR is not in a <relative> pin, which applies when the shielded piece is different than the King (if it's the King, it's an absolute pin). It's actually a <situational> pin, where the threat concerns a square and not a piece. Strictly speaking it's a situational cross-pin because of the mate threats on both g7 and f8. https://en.wikipedia.org/wiki/Pin_(... Lesson #10: also look for situational pins, not only relative ones. And then of course there's the safety pin.
Lesson #11: if you want your post to be taken seriously, avoid spoiling it with silly cracks. |
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| Jul-11-24 | | Mayankk: Hi <Teyss>
Sorry about that! And thanks for the pin lessons. Although I doubt I will be able to differentiate one from the other in my next puzzle ... In layman terms, Black has 3 pieces grounded at its base while White has/can deploy all its six pieces. So once the lines/diagonals open, the numerical majority allows it to break through. Key is to do this before any of the 3 pieces can take off and join defences. Rxf5 forces opening of either the f line (and h4-d8 diagonal) or the g line or the a2-f7 diagonal. Bxf5 may achieve the same but then White can't use the freshly opened diagonal. Rest just flows naturally. Another query - Is there a nomenclature for diagonals, similar to ranks or files ? It seems a mouthful to refer to them as h4-d8 or whatever. |
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Jul-11-24
| | Teyss: Hi Mayankk,
No issue about the name, my comment was tongue-in-cheek as usual. You're right about 17.Bxf5, I rapidly discarded it because in case of 17...exf5 the WB is useful on the a2-g8 diagonal, whilst it's easy to reload the sacrificed f1 Rook with the a1 one if needed. AFAIK there is no nomenclature for diagonals. Of course there is <long diagonal> but then you have to specify if it's a1-h8 or h1-a8, although in most cases it's obvious. So yeah we're stuck with the mouthful (as you funnily put it) letter/number-letter/number. There's no other clear way really. |
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Kibitzing
sac: 17.Rxf5