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|Feb-13-14|| ||DanielLam: I agree with Diademas --- the three preceding puzzles this week were actually tougher than this one... This one should have been the Monday puzzle instead :)|
|Feb-13-14|| ||Nick46: I got today's POTD after bombing out Monday thru Wednesday. PS saw <Diademas> & <DanielLam> after writing the above.|
|Feb-13-14|| ||Mendrys: This puzzle was much more forcing. The "yeah, but what if.." is either 22...Qxd8 or 22...Bxd8 both of which lead to a quick mate. The earlier puzzles this week all seemed to have several "what ifs" that often lead to a significant plus but no forced mates like today.|
|Feb-13-14|| ||morfishine: I goofed up the move order, but it looks sufficient to win|
22.Rd8+ Bxd8 23.Rf8+ (I groaned when I saw the game score overlooking 23.Qxh8+ and mate next move)
23...Kxf8 24.Qxh8+ Ke7 25.Qxg7+ Kd6 26.Qxg6+ Ke7 27.Bc5+ (the saving deflection)
27...Qxc5 28.Qe6+ Kf8 29.Qf7#
|Feb-13-14|| ||Richard Taylor: Fairly routine back rank theme. But beautiful! These only require practice to see quickly.|
|Feb-13-14|| ||Richard Taylor: 7. ... b5 looks unwise. Black needs to develop before commencing pawn advances etc 7. ... d6 looks better.|
|Feb-13-14|| ||handro1104: Qxc8++ What am i missing?|
|Feb-13-14|| ||Refused: 22.Rd8+ Qxd8 23.Qe6+ Kf8 24.Qf7#
22.Rd8+ Bxd8 23.Qxh8+ Kxh6 24.Rf8#
Somehow this feels like the easiest puzzle this week. Pretty straight forward.
|Feb-13-14|| ||Benzol: <handro1104> <Qxc8++ What am i missing?>|
|Feb-13-14|| ||Refused: <handro1104: Qxc8++ What am i missing?>|
22.Qxc8+? Bxc8, my guess is you somehow thought that the B on f6 was pinned or something and that 23.Rd8+? would be mate. But 23.Rd8+? Bxd8
No idea if that's what you are missing. *shrug*
|Feb-13-14|| ||Penguincw: Woah. I had thoughts of 22.Qxh8, Nf7+, Rxf6, hoping that white will come out on top, but it just takes a simple rook sacrifice.|
|Feb-13-14|| ||SuperPatzer77: After 22. Rd8+ Black resigns in lieu of 22...Bxd8, 23. Qxh8+! Kxh8, 24. Rf8# or 22...Qxd8, 23. Qe6+ Kf8, 24. Qf7#|
|Feb-13-14|| ||gofer: This really is "Medium" - once you see it! But, given the level of complexity of the last three days, I was looking for the smallest advantage, not a quick mate! So this actually took ages...|
<22 Rd8+ ...>
Black can resign.
22 ... Qxd8
23 Qe6+ Kf8
22 ... Bxd8
23 Qxh8+ Kxh8
|Feb-13-14|| ||mel gibson: Black was in trouble from move 9.
DR4 beat black easily even from moves 9,10,11,12 etc.
Black had failed to castle early & was left with a King exposed.
|Feb-13-14|| ||Nick46: 1914 - 2014: Yesterday Englund won - today German lost. Le hasard n'existe pas.|
|Feb-13-14|| ||RubinSteinitz: I agree with my good friend Richard on his assessment of the Kan variation of the Sicilian Defense: <Richard Taylor: 7. ... b5 looks unwise. Black needs to develop before commencing pawn advances etc 7. ... d6 looks better.> I prefer 7. ...Bb4 w/ ...d6 to follow depending on what transpires as the bishop threatens to double white' s pawns and it also brings an unmoved piece into a threatening position which is good sound opening practice. This opening concept was played in the last Candidates tournament between Carlsen and Ivanchuk in which Mr. Ivanchuk won in a very exciting game. This game set Carlsen back at the end of that tournament and almost cost him his shot at Anand last November.|
|Feb-13-14|| ||laskereshevsky: Kudos to Kavalek....|
|Feb-13-14|| ||kevin86: Rd8+ is sudden death! If the bishop takes,Qxh8+ and mate next or if the queen takes,she is diverted from her diagonal at Qe6+ mates next move.|
Black's bad choice:either allow a queen sacrifice or be mated by the same queen.
|Feb-13-14|| ||BOSTER: First I played this 22.Qxh8+ Kxh8 23.Rd8+ Qxd8 24.Nf7+ Kg8 25.Nxd8 Bxd8 and understood that is better to change the order.
So, 22 .Rd8+.
It means that I didn't see any pattetn
ln this forest .
|Feb-13-14|| ||Cheapo by the Dozen: Ack. I missed Qxh8+!!
I'm having a bad week at these puzzles ...
|Feb-13-14|| ||Marmot PFL: Easiest problem since Monday i thought. But I was playing horribly yesterday anyway.|
|Feb-13-14|| ||sfm: What a crusher. The Sicilian is a narrow path at times.
Would be interesting if a silicon owner would enlighten us with where the mistakes were.|
After 10.0-0-0 it is clear that White has a lot for the pawn, too much it seems. Black's queen is in risk of soon being caught. 10.-,Bd6 counters a white Bf4, but it also blocks the retreat, so Black soon needs to spend yet one more non-developing move on playing Be7. Somewhere around here it looks like something else should have been played.
After 11.-,Bb7 White has several very attractive moves and plans. How about a mix of something like Rhe1,h4,Qg2,f4. Looks good.
But 12.Qh3!! is the brilliant decider.
The problem is? The pin on the h-pawn!, allowing the white g-pawn to run off to g6 - and it all falls totally apart. And Black has no time to prevent it. Awesome, to me is looks like the game is already over after 12.Qh3.
After 18.f5 there is clearly not a shadow of a defense, everything opening up while White rules the board, but mate comes even faster than expected. 21.Sg5+,Ke7 22.Bc5+,QxB 23.Qe6+ is over too. As it came, neat finish.
I see that Khodos mixed in with the very top of Russian chess, with an impressive score and draws and victories against absolute top names. Usually not one to be pushed around at all.
A stunning execution by Kavalek, who also did this one.
Gufeld vs Kavalek, 1962
|Feb-16-14|| ||Richard Taylor: < RubinSteinitz: I agree with my good friend Richard on his assessment of the Kan variation of the Sicilian Defense: <Richard Taylor: 7. ... b5 looks unwise. Black needs to develop before commencing pawn advances etc 7. ... d6 looks better.> I prefer 7. ...Bb4 w/ ...d6 to follow depending on what transpires as the bishop threatens to double white' s pawns and it also brings an unmoved piece into a threatening position which is good sound opening practice. This opening concept was played in the last Candidates tournament between Carlsen and Ivanchuk in which Mr. Ivanchuk won in a very exciting game. This game set Carlsen back at the end of that tournament and almost cost him his shot at Anand last November. >|
Thanks! I think b5 could be played but I think I saw it criticised by Smyslov in one of his games: although I'm not sure if it was the same position but the principle remains I think. I recall the Ivanchuk game, it was well-played by Ivanchuk but I'd forgotten about it until you mentioned it. I don't recall the exact line or game but do remember Ivanchuk did well (Carlsen misplayed the opening early if I remember right, it was one of the games when he was tired at the end, but Ivanchuk of course is a great player also).
|Feb-20-14|| ||RubinSteinitz: Richard> I can see where Smylov is going with his argument in this variation. The 7... b5 here in the above game for example setup the pawn sacrifice on e5 that has the appearance of a prepared variation by Kavelek. The 9. Qf3 shot, threatening to win the rook and at the same time promoting a very dynamic kingside attack would not have been possible without the early b5. I wonder if instead of 9.... d5, if 9.... Ra7 with the idea of playing Bb7 would have been a better more dynamic response for black.|
|Feb-20-14|| ||RubinSteinitz: <Richard> Here is the Carlsen vs Ivanchuck game for comparison:|
Carlsen vs Ivanchuk, 2013
The Paulsen lines are a little different but lead to what I was referring to regarding the doubled white pawns on th c file.
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