< Earlier Kibitzing · PAGE 3 OF 3 ·
|Dec-12-09|| ||Eduardo Leon: I didn't have to think too much to find the first move. Remember this puzzle: Areshchenko vs F Corrales Jimenez, 2009? Okay. The key is the same: create doubled pawns e6 and e7 so the black king can't escape.|
Black can't take the annoying pawn: 23...fxe6 24.dh1! and, no matter what black does, 25.xg7+!.
Black delays 24.dh1 and makes room for an additional defender, which will come after 24...c8 and 25...xc3.
Again, if 24...fxe6 25.dh1!. Now 25.hd1? is too slow, since it allows 25...xc3!, not only defending h8, but attacking white's weak position in the queenside. But there is a refutation.
The key move, which comes just in time before black could take the e pawn. Now not only there is no room for the additional defender, but also black can't get rid of an additional annoying bishop!
25...f6 26.exf6 exf6 27.xf6!
Again, taking the bishop means mate in one!
And not taking it means mate in three.
The impossibility of immediately capturing the pawn played an important role in today's puzzle.
|Dec-12-09|| ||ceebo: <johnlspouge: 23.e6 <fxe6> 24.Rxd3 Qc7 25.Rxg6+ Red8 26.Rxg7>|
I did a bit more digging in this line and found 23.e6 fxe6 24.Rxd3 Qc7 25.Rxg6+ Red8 26.<Qxg7> Ke8 27.Rxe6 with mate in 10 according to Rybka 2.2.
That should mean that white can force mate by move 37 after playing 23.e6.
|Dec-12-09|| ||tivrfoa: Again I failed the continuation. 25. Rdh1 fails to Qxc3 ... But white would be slightly better. xD|
|Dec-12-09|| ||DarthStapler: I considered the first move but I picked Rdh1 instead|
|Dec-12-09|| ||docricardo: The move 23.e6!!! castrates the black king. Followed by 24. Rdh1 & a toxic queen sacrifice Qxg7+...and the rest is history!|
|Dec-12-09|| ||patzer2: For today's Saturday puzzle solution, Tartakower's demolition sham sacrifice 23. e6!! decisively exploits Vidmar's weakened King position.|
|Dec-12-09|| ||johnlspouge: < <ceebo> wrote: [snip] That should mean that white can force mate by move 37 after playing 23.e6. >|
< <goodevans> wrote: <johnlspouge>,
As quickly as I can come up with a reply to your first posting then you come up with another! >
Hi, <goodevans>. I deleted my response, because <ceebo> was much more thorough (and correct) than I in his computer investigations.
Personally, minority or not, I do not regard the game variation as gospel, <ever>, so it did not bother me to find a different variation after the computer confirmed it as best play.
|Dec-12-09|| ||WhiteRook48: I had 23 Qh8+ immediately instead... how stupid but it actually seemed to work|
|Dec-12-09|| ||gofer: <Once>: I like your scoring system. 0, 1/2 and 1 just doesn't seem very gratifying as I seem to get a lot of 1/2s...|
In passing, where is the commitment from the Brits to post first?!?!
Its only 5am our time, surely someone in the UK works awful hours or better still is out partying until 5 am and then wants to solve MOTD!
|Dec-12-09|| ||muralman: Yay, first win of the week!|
|Dec-12-09|| ||Quentinc: <AxelBoldt: White can play 23.Rh1 e6 24.Bxg6 which looks pretty good>
Thanks, that does look good.|
|Dec-12-09|| ||shishio71: Okay, now I see why 23. Qh8+ doesn't work:
23. Qh8+? Bxh8 24. Rxh8+ Kg7 25. Rdh1 Rxh8
e6 is a nice little move, though
|Dec-12-09|| ||TheBish: Tartakower vs Vidmar, 1905|
White to play (23.?) "Very Difficult"
About my only candidate move was 23. e6, except I did consider 23. Rdh1 with the threat of mate in 3 starting with 24. Qh6+, but Black simply plays 23...e6! and White just loses a piece now after 24. cxd3 b4.
This boxes in the king and threatens 24. Bd4 and a quick mate. Much better than 23. Rxd3 Qd7! where White is better, but not crushing as after the text. Black is pretty helpless here, can only delay mate a few moves.
A) 23...fxe6 24. Rxd3 Qc7 (or 24...Bxh6 25. gxh6 followed by Qg7#) 25. Rxg6 Red8 26. Rxg7 Ke8 27. Bb6! Qb7 28. Ne4! where Black can only delay mate by giving up heavy wood starting with 27...Rxc2+.
B) 23...Rxc3 24. bxc3 Bf5 (24...fxe6 is similar to A) 25. Bd4 f6 26. Rxg6! Nb3+ (spite) 27. cxb3 Bxg6 28. Qxg6 Kg8 29. Rh1 and mate next.
C) 23...Bf5 24. Bd4 f6 25. Rxg6! is the same as B without the preliminary exchange sac.
That just about covers it... on to the game!
|Dec-12-09|| ||Formula7: Hmm, 23.Rdh1 threatens 24.Qh8+ Bxh8 25.Rxh8+ Kg7 26.R1h7#, but 23...e6 foils that plan. However, White can prevent e6 by playing e6 himself, leading to the following variations:|
A) 23...fxe6 24.Rxd3 and White takes on g6 on the next move with a mating attack.
B) 23...Bg7 any 24.Qxf7#
C) 23...Rxc3 24.bxc3
D) 23...anything else 24.Rdh1 and the threat of 25.Qh8+ Bxh8 26.Rxh8+ Kg7 27.R1h7# cannot be stopped
|Dec-12-09|| ||lost in space: Well, no time today to solve the puzzle.
But after 23.e6 Rxc3 it seems that
24. Rdh1! Rxc2+ Kd1
click for larger view
is much better than the text (24. bxc3). Mate to follow
|Dec-12-09|| ||butilikefur: what? why not 25. Rh1 ...|
|Dec-12-09|| ||butilikefur: 25. Rh1 Qxc3 26. Qh8+ Bxh8 27. Rxh8+ Qxh8 28. Rxh8+ Kg7 29. Bd4+ f6 30. gxf6+ exf6 31. Rxd8 Bf5 32. Re7+ Kf8 33. Rf7+ Ke8 34. Bxf6 and White is won (34...Nc6 35. Rc7) but 25. Bd4 is far stronger|
|Dec-12-09|| ||BOSTER: I don't think that one hundred years ago the Sicilian theory was the same, what we have now.
But I guess it was much better to play 17...e5 to open the window for his king , and even in the such position black could continue the fighting.|
|Dec-12-09|| ||butilikefur: hey what about 19. Nf5 gxf5 20. Qh7+ Kf8 21. exf5 with the idea of getting in g6 and Bh6|
|Dec-12-09|| ||ccolby: Help me here. I have black back at move 14. I've neglected the advance of white pawns, and now I have a critical choice. I think hxg6 leaves me indefensibly open along the h file. What's more, this choice comes up a lot. Why not play fxg6?|
|Dec-12-09|| ||OhioChessFan: <ccolby> 14...fxg6 is probably a little better. I think part of it is simply the way chess was played in 1905. Anyway, if 14..fxg6, 15. 0-0-0 and White still looks good.|
|Dec-13-09|| ||David2009: Saturday's puzzle Tartakower vs Vidmar, 1905 White 23?|
23 e6 Ng3+ 24 Kb1 Rxc3 25 bxc3 Qa5 26 Rh1 Bxc2+ 27 Kxc2 Qxa2+ 28 and IF White can
escape the perpetual check, White mates first. 23 Rh1 first doesn't work: e6! and the black K escapes
via e7. This is far as I have time for (we are away from home, guests). If Black does not play Ng3+,
White mates on the h file with 24 Rh1 etc. I don't have to decide the best reply to Ng3+ immediately:
perhaps 24 axb3 allowing Qa5 is safe or even 24 cxb3 Rxc3+ 25 bxa3 Qa5 26 Rxd3! and White wins on material.
On reflection I like this last line better than Kb1- it is a humorous twist (White, denied his Q sacrifice, decides to win on material instead). Time to
Black plays 23...Rxc3 immediately and then counter-attacks with his
Q on c8. I wasn't too worried about 23...Rxc3 and to save posting time didn't analyse it. Tine to digest the other comments.
|Dec-13-09|| ||David2009: |
click for larger view
Tartakower-Vidmar 1905, 23?
Crafty goes for the immediate counter-attack 23 e6 Bxc2! and I failed to win first time round: 24 Rh1 Nb3+ 25 Kxc2? Rxc3+ 26 bxc3 Na1+
27 Rxa1!? Qa5 (there may be better White moves than those marked !?)
click for larger view
28.Qh8+!? Bxh8 29.Rxh8+ Kg7 30.Bd4+ f6 31.Rxe8 b4 32.Rxe7+ Kf8 33.gxf6 Qf5+ 34.Kb3 Qd5+ 35.Kxb4 Qb5+ 36.Ka3 Qa5+ 37.Kb2 Qb5+ 38.Kc1 Qf1+ 39.Kb2 Qe2+ drawn by perpetual check.
Second time round I did better: 24 Rh1 Nb3+ 25 axb3 and won. I leave it to interested readers to explore these variations further. On-line link:
You are white, drag and drop the move you want to make.
|Apr-03-11|| ||adbat: White does not get the equalizer. On move 39, but Kd3 Kb2 not play with this line, 39.Kd3-Qa1 / 40.Re7 Ke8 / 41.Rb7-Qa2 + / 42.Kd3-Qe6 / 43. Ke7 fe7 and White wins, or 40 ... Kg8 / 41. Kg7 Kh8 / 42. Kb7-Qa2 + / 43. Kd3-Qd5 / 44.f7 + and White wins.|
< Earlier Kibitzing · PAGE 3 OF 3 ·