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| Aug-29-08 | | areknames: <al wazir>, in your line black doesn't have to capture white's queen after 20.Nxg6, but can play 20...Rxh8! After 21.Rxh8 Rxh8 I don't think white has anything better than 22.Qd4+ Kxg6, and the mate threat on h1 means there isn't even time to capture the pawn on a7. In this position white will be lucky to draw. |
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| Aug-29-08 | | Kings Indian: I thought for sure Rh8+ and Qxg7 was good enough..until I realised white is a piece down when I looked at the solution. Not a good day.. |
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Aug-29-08
 | | al wazir: <areknames: in your line black doesn't have to capture white's queen after 20.Nxg6, but can play 20...Rxh8!> You're right. I guess that's why I'm not a GM. One of the reasons anyway. |
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Aug-29-08
 | | xenophon: was this easy for a friday?I saw it with little difficulty which is unusual for me. |
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Aug-29-08
 | | An Englishman: Good Evening: <xenophon>, perhaps you saw the game many years ago? I did, and remembered the finish, so no score for me on this one. |
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| Aug-29-08 | | VooDooMoves: Good morning all!
This is my first post here, though I have been visiting this site a bit lately. I found it curious that even with easy puzzles (not meaning todays) that many here gave detailed descriptions and variations, and now I apreciate why after reading the post of dzechiel: like the moves but for some reason they dont work, change the order!!
I'm not a strong player so posts such as this I find very instructive.
After seeing that pawn to g6 threatens mate but cannot be played yet because blacks queen covers g6 the answer seems easy enough...lure her majesty away! first a knight sac and then a queen.
Some mates i find easily and some after careful thought but what i find VERY difficult is acheiving these types of winning positions! Mayhap they should have team tournaments where 1 player starts a game and another finishes ;) just a thought... |
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| Aug-29-08 | | ahmadov: I looked at the game without trying to solve the puzzle... 16.Ne5 is a great tactical move... I loved it! |
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| Aug-29-08 | | 456: Thurrsday puzzle Aug-28-08 <32. ?> A Luczak vs Fedorowicz, 1979 |
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Aug-29-08
 | | Richard Taylor: I solved this quite quickly - the concept is to block the King and threaten mate.
I have probably seen many combinations like this so that helps in solving. Usually I overlook a defense, so here I checked every possible move! |
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| Aug-29-08 | | newzild: Like RichardTaylor and Xenophon, I found this relatively easy for a Friday. It took me five minutes to solve Wednesday's puzzle, three minutes to solve Thursday's puzzle, and two minutes for today. Something's a bit wonky somewhere - either the puzzles or inside my head! |
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| Aug-29-08 | | cyclemath: <Or 16...Qxe5 17. g6 Qf4+ 18 Qe3! (not 18. Kb1?? Qh6!) and Black can not avoid the mate> Isn't simply 17. Qxe5 just as good, avoiding Black's check 17. ... Qf4+? Then Black is a Q down, and if he recaptures he's helpless against g6 next move. |
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| Aug-29-08 | | soberknight: Wow.
If the queen takes, g6 wins anyway. |
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| Aug-29-08 | | whiteshark: <16.Ne5> yeah, baby! |
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| Aug-29-08 | | jokerman: This is the first time that i've gotten all puzzels correct! Finally i'm getting better :0). In this game i'm wondering if white saw the combination starting from 11)Nd5 And another thing i'm wondering is... How long does it take a grandmaster to find such a combination? I probably spended  5 minits on this one... But thats only beceause i know there is a winning line and i saw the main idea pawn g6 and Rh8 mate... Now even beginners would see it's mate starting from a position with the pawn on g6. So at first i was trying to sac my queen (once on g7 and once on c5 and on e5. So i calculated lines like
1) Rh8+ Kf7 2) Qxg7+ Kxg7 3) Rh1h7+ K... then i stopped. 1) Qe5 now if Qxe5? then i play g6 and win... But black can play dxe5 and i'm just down a queen. Then i reminded myself the main idea "pawn on g6 and mate on h8" So i asked myself what is the problem? well if g6 black plays Qxg6... So i looked at the line 1) g6 Qxg6 Now it hit me, what was the point of playing g6 in the first way?? well simple take away the f7 square so i then tried 2) Qc4+ Now if (Qf7 of Rh7 then it's simple, it's mate in one) But! he would play... d5 and my attack is over. So now i new what the real problem was, the pawn on d6! So if i could mannage to get that pawn away it would be easy for me... Now i saw 1) Ne5! If Qxe5 i would play 2) Qxe5 now if black takes back with dxe5? i win with g6 (no need to calculate) so he can't take with Queen so he plays dxe5! my first problem is gone! Now i still have the problem of the flight square f7... But now i just play g6 treatening mate black takes my pawn with the queen (what else?) Now i play Qc4+ Black cant move the king, only interpose with Rook and Queen so then the square is blocked and i mate... ( ofcourse also Bd5 ect... but that's just take take) That was the way i calculated... So for some people who are just beginning One hint... Just start seeing the pattern g6 + Rh8++. greatings, jokerman.
thanks to all of those such as dzechiel, who share their ideas! |
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| Aug-29-08 | | zooter: just came back from a training and hence late to post my wise ass comments ;) I somehow like 16.Rh8+ Kf7 17.Qxg7+ Kxg7 18.R1h7+ Kg6 19.Nh5+ Kxg5 20.Rg7+ which i'm pretty sure leads to mate... time to check as am rushing now |
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| Aug-29-08 | | zooter: blah blah blah..this zooter goes on and on...better put him on the ignore list....what a waste of kibitz...! |
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Aug-29-08
 | | maxi: <VooDooMoves> There are two old rules to remember when calculating lines, and nobody tells you this. First, when calculating a combination try all possible orders of the moves. Second, just before moving give the board a last quick look, to make sure you are not getting mated or losing your Queen. |
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| Aug-29-08 | | vanytchouck: My favourite move in this kind of position :
Qxg7 +
As the g5 pawn protected by the Nf3, the f6, g5 and h6 squares are forbiden for the black king. 16. Qxg7+ ?? Rxg7 17. Rh7+ Kg6 ??? R1h6 # looks promising but 17...Kg8 18. Rh8+ Kf7 shows that Qxg7 is an unsound sacrifice. Let's go for the slow plans :
16. g6 Qxg6 and what else?
O.k. 16.g6 is deflecting the queen from the a2-g8 diagonal, but what for?
17. Qc4+ is easily met by 17...d5.
But here we can notice that 17...Qf7 or 17...Rf7 is met by Rh8#. This line can work if there is a way to take the pawn from the "d"-file while threatening something very dangerous. Here i didn't find the move quickly, i was so disappointed by the failure of 16. Qxg7+ that i even didn't think about mating any more ... But as the only piece wich doesn't participate at the attack is the knight, i started to look for and interesting move for it. And i saw 16. g6 Qxg6 17.Ne5?! dxe5?? 18. Qc4 + and 19. Rh8 # wich also looks promising but there i remind me of a tactical point that i often miss :
exchanging a Queen for a Rook and a Knight. Of course it leads to a better position but it's not winning. So 16. g6 Qxg6 17.Ne5?! Qxh5!? 18. Rxh5 dxe5 19. Qxe5  Here again, the failure of this line, made me look for a way different line... I just don't know how i've finally found the good line ... 16.Ne5 dxe5 17. g6 Qxg6 18. Qc4 + and 19. Rh8 # |
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| Aug-29-08 | | vanytchouck: There is also this line :
16.Ne5 Qxe5 17. g6 Qf4+ 18. Kb1 Qh6 19. Rxh6 gxh6 20. Rxh6 and the black position is hopeless ... |
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| Aug-29-08 | | YetAnotherAmateur: I'm fairly certain 16. Rh7 also wins, although not as elegantly as Alekhine. 16. Rh7 Qe7 or Qd7 (if Rf7 or Qf7, Rh8#)
17. g6 and black can't stop Rh8#
If black ignores the threat, obviously 17. Qxg7#
so:
16. Rh7 Kf7
17. Qxg7+ Ke8
18. Rh8
Black now has 3 options, all of them bad:
18. ... Rxh8
19. Rxh8+ Qg8
20. Rxg8#
18. Qe7 Rxf8+
19. Qxf8 Rh8
and black is unable to stop Rxf8#
or
18. ... Qg8
19. Rxg8 Rxg8 (else Rxf8#)
20. Qxg8+ Ke7 (or Kd7)
21. Rh7# |
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| Aug-29-08 | | YetAnotherAmateur: Ok, turns out I neglected to handle
16. Rh7 Qf6 or Rf6
which obviously is still good for white but not game-ending like any of my other lines. |
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| Aug-29-08 | | johnlspouge: Friday (Difficult): White to play and win.
Material: Down a B. White has sacrificed a B for a K-side attack. The Black Kg8 has one legal move f7, which can be plugged by any of the moves g6, Ne5, or Ng5. Thus, the possible move sequence of g6 then Ng5 already looks interesting. White has a battery Rh1 and Rh5 along the open h-file. The White Qd4 attacks Pg7 and h8 behind. The key defensive pieces are Ne4, which protects g5, and Qe6, which protects g6. If either is deflected, Black faces mate along the h-file after White plugs f7. Candidates (16): Rh8+, Qxg7+, Qc4, g6, Ne5
Today was interesting because exploration of successive candidates made the correct one obvious. Here are some variations permitting Black to survive with the candidates other than 16.Ne5: (1) 16.Rh8+ Kf2
(2) 16.Qxg7+ Kxg7 17.Rh7+ Kg8 [Kg6 18.Rh6#] 18.Rh8+ Kf7 (3) 16.Qc4 d5
Variation 3 shows the defensive importance of Pd6.
(4) 16.g6 Qxg6 17.Ne5 Qxh5 18.Rxh5 dxe5 19.Qc4+ Rf7 20.Rxf5 Nd6 Variation 4 suggests that reversal of the move order 16.g6 17.Ne5 is deadly, because it removes the defensive possibility 17…Qxh5. (5) 16.Ne5 (threatening 17.Rh8#)
(5.1) 16…Qxe5 17.Qxe5 (threatening 18.g6 19.Rh8# )
Black has no time to recapture Qe5, because mate will follow. (5.2) 16…dxe5 17.g6 (threatening 18.Rh8#)
17…Qxg6 18.Qc4+
Black can throw pieces, but eventually must self-block at f7, so Rh8# is inevitable. Thanks to <TheaN> for suggesting the presentation order of weakest to strongest defense. The same order for attacking moves is also helpful. |
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| Aug-29-08 | | johnlspouge: <<vanytchouck> wrote: There is also this line : 16.Ne5 Qxe5 17. g6 Qf4+ 18. Kb1 Qh6 19. Rxh6 gxh6 20. Rxh6 and the black position is hopeless ...> Agreed. I saw this variation as well as 17.Qxe5, and thought to myself a computer might prefer it. Nowadays, however, I just prefer to write down the simplest devastating move. |
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Aug-29-08
| | Machado: My line was: 16.g6 Qxg6 17. Qc4+ d5 18.Rh8+ Kf7 19.Ne5+ Kf6 20.Nxg6 dxc4 21. Nxf8 and white wins a rook. I failed to spot the forced mate. |
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| Aug-29-08 | | zaxcvd: <A difference is Black can try 14...f5 15. g6 Qe6 16. Ne5 <Rfd8> aiming to run away via 17. Rdh1 Kf8.> All variations from move 14 on lead to black mate.
14.Rh5 Qe6
<(14...f5 15.g6 Qe6 16.Ne5> dxe5
<(16...Rfd8 17.Rdh1 Kf8 18.Rh8+ Ke7 19.Nxc6+ bxc6
(19...Kd7 20.Qxg7+ Kc8 21.Rxd8#)
20.Qxg7+ Qf7 21.Qxf7#)>
17.Rdh1 exd4
(17...Qxg6 18.Qc4+ Rf7 19.Rh8#)
18.Rh8#)
15.Rdh1 f5 16.Ne5 dxe5 17.g6
1-0
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Kibitzing
sac: 11.Nd5