| Mar-27-24 | | Mayankk: White is up 2 pawns, with a protected passed d pawn in his fold. Any liquidation will therefore likely be in our favour. There are a few ways to bring it. 40 Qe5 is one way as it forces exchange of Queens. Game may continue 40 ... Qxe5 41 dxe5 Rxg1+ 42 Rxg1 Nxh3. However we have lost the h pawn and broken our pawn chain. Not good. Another way is to exchange our Queen with R+B or 2R. For example, 40 Qxf4 Rxf4 41 Rxg2 Qf8 42 Bxf4 Qxf4 43 Rdg1. Now we have a connected Rook pair with a strong pawn chain. We are also threatening Rg8# and can harrass the Black King. Should be a win hopefully. However an even stronger way is 40 Qxf4 Rxf4 41 Bxf4 Rxg1+ 42 Rxg1 , followed by 43 Be5+ Qg7 44 Bxg7+ etc. The key is to notice that the Bishop at e5 is a monster and Black can't prevent mate without letting go of his Queen. So one of those situations where R + B is preferable to 2R. |
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| Mar-27-24 | | King.Arthur.Brazil: Tactics: 40. Qxf4 (Rxh2+ 41. Qxh2)
line 1: 40... Rxg1+ 41. Rxg1 Rxf4 42. Rxg7:
A. 42... Kxg7 43. Bxf4 or B. Rf1+ 43. Rg1 Rxg1+ 44. Kxg1 with an extra ♗ or C. 43... Rf2? (or any ...f8) 44. Be5+ and win.line 2: 40... Rxf4 41. Rxg2!? Qf7 42. Rdg1:
D. 42... Rf1? (or f2...f3) 43. Be5+ Rf6 44. Bxf6+ Qxf6 45. Rg8#, or
E. 42... Rf6 43. Rg6 (Qe6 45. Kh2) and B lose.
F. 42... Rf5! (for me is the best reply) because if: 43. Rg8+ Qxg8 44. Be5+ Rxe5 45. Rxg8+ Kxg8 46. dxe5 Kf7 and W advantage is minimal. For this reason, the correct answer to 40... Rxf4 is 41. Bxf4! G. Rxg1+ 42. Rxg1 Qd7 43. Be5+ or
H. Rg6 42. Be5 pins the ♕.
I. Qd7 42. Rxg2 Qxh3+ 43. Kg1 h5 44. Be5+ Kh7 45. Rf1 Qe3+ 46. Kh2 Qd3 47. Rf7+ Kh6 48. Bf4#
J. Qf7 42. Be5+ Rg7 43. Rxg7 Qf3+ 44. Rg2+ win. |
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| Mar-27-24 | | catlover: Tough for a Wednesday. |
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| Mar-27-24 | | mel gibson: Too hard for me.
Stockfish 16 says mate in 23:
40. Qxf4
(40. Qxf4 (1.Qxf4 Rxf4 2.Bxf4 Rxg1+ 3.Rxg1 Kg8 4.Rxg7+ Kxg7 5.Kg2 Kf6 6.Kf3 Kf5 7.d5 a5 8.d6 Kf6 9.Ke4 Ke6 10.Be5 a4 11.h4
h6 12.h5 b5 13.Kf4 b4 14.cxb4 Kd7 15.Kf5 a3 16.b3 Kc8 17.Ke6 Kd8 18.Bf6+
Kc8 19.d7+ Kb7 20.Be5 Kc6 21.d8Q Kb7 22.Bd4 Ka6 23.Qb6+) +M23/57 570) White wins _ mate in 23. |
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Mar-27-24
 | | Teyss: Simple (after you see it), beautiful, efficient. I always thought the Q+R battery is a weapon of mass destruction, here it's a liability since the g2 Rook is actually pinned. Note that 40...Rg8 doesn't help Black despite the fact a R+Q+R battery is in theory a massive WMD because of the simple, beautiful and efficient 41.Qe5! Another pin, which BTW only works because the WQ is supported by the h2 Bishop threatening Bxe5+. I'm throwing away all my Chess theory books. |
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Mar-27-24
 | | chrisowen: Task its wand quagmire its hub Qxf4 its a bath its latch its huh its adagio its nug aah its hark Qxf4 its ear |
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| Mar-27-24 | | TheaN: I messed this up slightly, weirdly enough. <40.Qxf4 Rxf4> was kind of obvious after discarding 40.Bxf4 Rxg1+ ∓. However, here I thought White was forced to play <41.Rxg2?!>... bit shortsighted of course, given that after the text g1 is adequately defended and Black has no defense against the incoming Rxg2 and Be5, if the queen moves it's with check and disaster. After Rxg2 Black has a bit more breathing room, mainly because the battery on the g-file doesn't work: <41....Qf7 42.Bxf4 Qxf4> 43.Rdg1?!:
click for larger view
43....h5 gives the Black king breathing space, but I personally like 43....Qf3?!, hitting on h3 and pinning Rg2. After 44.Kh2? (Re1 +-) Qf4+ gives White two evils, 45.Rg3 selfpinning or 45.Kh1 Qf3 repeating. White will instead have to change gears and play <43.Rdd2 Qf3 44.d5! +-> and play on the strength of the d-pawn. So I'd say 41.Rxg2?! is half credit a best. |
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| Mar-27-24 | | King.Arthur.Brazil: <Teyss>, my friend, if you allow me call you as friend, of course, how are you? Have you any notice about our disappeared friend BRENIN.
I missed him so much and feel sad that he is not here today commenting as usual. You need not to <throw away all my Chess theory books>. They are not wrong, they showed you examples of something that several times worked, but not always, of course. And, on the other side, you are yourself proving that your level continue to grow, because more and more baggage of knowledge you are receiving, everyday here, trying to solve puzzles which in fact explore all kind of situations, even the ones where we always suppose this "Q+2R" attack will win, sometimes it doesn't. But, if you keep the same idea, I recommend that you give your good books to some beginners and encourage them into our game passion. Surely, you have so much to teach in chess to them. Good lucky. Thanks CG! |
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Mar-27-24
 | | perfidious: I have noticed that <Brenin> has dropped by, but not posted in a while; hope all is well with him. |
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Mar-27-24
 | | Check It Out: What <TheaN> said. |
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| Mar-27-24 | | Messiah: <Check It Out: What <TheaN> said.> He or she said:
<I messed this up slightly, weirdly enough. <40.Qxf4 Rxf4> was kind of obvious after discarding 40.Bxf4 Rxg1+ ∓. However, here I thought White was forced to play <41.Rxg2?!>... bit shortsighted of course, given that after the text g1 is adequately defended and Black has no defense against the incoming Rxg2 and Be5, if the queen moves it's with check and disaster.After Rxg2 Black has a bit more breathing room, mainly because the battery on the g-file doesn't work: <41....Qf7 42.Bxf4 Qxf4> 43.Rdg1?!: click for larger view
43....h5 gives the Black king breathing space, but I personally like 43....Qf3?!, hitting on h3 and pinning Rg2. After 44.Kh2? (Re1 +-) Qf4+ gives White two evils, 45.Rg3 selfpinning or 45.Kh1 Qf3 repeating. White will instead have to change gears and play <43.Rdd2 Qf3 44.d5! +-> and play on the strength of the d-pawn. So I'd say 41.Rxg2?! is half credit a best.> You're welcome! |
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Mar-27-24
 | | beatgiant: <Messiah> I hope you won't take it amiss if I point out that, in the current American English vernacular, "what X said" is short for "I agree with what X said." It does not mean "please repeat for me what X said." |
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Mar-27-24
| | Teyss: Hi King.Arthur.Brazil,
A short note because it's late here. I generally don't call friends persons I don't personally know, but feel free to call me so if you want, no problem. Friendship is a flexible concept notably on social networks where some can have hundreds or even thousands of "friends" they never met. No jugement on my behalf.Yes Brenin is missed as some other users but thankfully we still have interesting contributors. No need to name them again. As for my comments which are not strictly technical, they shouldn't be taken too seriously. I could put smileys for clarity but then they would be all over the place and hinder reading. |
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Mar-28-24
 | | al wazir: I've missed <Brenin> too. His comments were always illuminating, and he corrected my goofs innumerable times. |
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Kibitzing
sac: 40.Qxf4