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< Earlier Kibitzing · PAGE 1 OF 3 ·
Later Kibitzing> |
Sep-20-07
 | | Phony Benoni: Another case where a fianchettoed bishop might have been well-advised to resist temptation--espeically against Shamkovich, who knew a thing or two about attacking. |
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Feb-05-08
 | | OBIT: Some sneaky traps here. No credit if you moved the king to h2, f2, e2, e3, or g3 at any point. The White king really has to walk a tightrope! |
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Feb-05-08
 | | dzechiel: White to play. White has a pawn for the exchange. "Easy." The first thing to notice in this position, is that the black queen is tied down to the defense of the rook on f8. While the white king is slightly exposed, it's not bad enough to prevent us from playing 35 Ra7!
Black is stuck here big time. A few spite checks with 35...Rc1+ 36 Kg2
Wouldn't want to allow 36...Qxe5+
36...Rc2+ 37 Kh3
Now black can go for the last spite check (37...Rh2+) or make a vain attempt to defend 37...Rc7
But after
38 Rxc7
Once again black finds it impossible to cover f8 and h7 simultaneously. I'm guessing that Tukmakov actually resigned back on move 37. Time to check. |
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Feb-05-08
| | dzechiel: It seems Tukmakov's spite checks were more inventive than mine. Not more successful, just more inventive. :D |
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Feb-05-08
| | OBIT: By the way, one last trick that Tukmakov didn't try: 37...Rg3+ 38. Kh2! |
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| Feb-05-08 | | Cuellargacharna: No comments. It is too early in the morning for this February the fifth 2008 to make a chess comment. But...I do not want to miss the opportunity to ask the chess players of the world to join the effort that my country, Colombia, is making to unmask the FARC and show them as they really are: THey lost the principles of fighting for the poor, they are just fighting to gain more money and power for themselves. I am sorry to have used this site for this porpose, but while my countrymen and women are risking their lives in Colombia to achieve piece in my country, Colombia, and I am here exercising my rigths as an earthling and very secured in my home exercising my democratas rigths playinf chess, as it should be all over the worl without fearing to be kidnapped, torturesd, killed, separated from your family and liberties.
Please join the Colombians in celebrating this day as a day to denounce the FARCS as a terrorist organization that is poisoning the world via they drug trading.
Thanks to all of you! |
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| Feb-05-08 | | Manic: Maybe 36...Rc2+ 37.Kh3 Rh2+ 38.Kxh2 Qxe5+ would have offered better chances for a perpetual |
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Feb-05-08
 | | mrsaturdaypants: Didn't get it. I was determined to make a pawn capture work. Convinced myself that the rook shouldn't move. Ah well. |
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Feb-05-08
| | dzechiel: <Manic: Maybe 36...Rc2+ 37.Kh3 Rh2+ 38.Kxh2 Qxe5+ would have offered better chances for a perpetual> Looking at the play, it seems that after 36...Rc2+ white would then play 37 Kf3!, which leaves black with only one more useless check. |
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| Feb-05-08 | | Cuellargacharna: I am very sorry to have inserted this humanistic comment on Chessgames, but since I believe that chess is tha game where the human personality shows, I thought it was appropriate to do it. My apologies. By the way this week I am a 100%. Thanks. Now I'll go to bed. Good day to you all. |
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Feb-05-08
| | OBIT: Hmm, <Manic's> suggestion isn't so easy to refute. After 36...Rc2+ 37. Kf3 Rf2+ is still a useful check. |
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Feb-05-08
 | | An Englishman: Good Evening: Shamkovich's book on the art of the sacrifice inspired me to change my style of play completely from ultra-conservative and dull to a style much more prone to sacrifices. This game is a very good demonstration of how well qualified he was to write such a book. |
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| Feb-05-08 | | zooter: 35. Ra7 seems like a good move but then
35...Rc1+ 36.Kg2 Rc2 37.Kf3 Rf2+ and if white takes the rook, then 38...Qxa7 with check and wins for black But how about
35.exf6 threatening the queen which has to protect the rook on f8. Black has 2 moves here 35...Rxf6 which loses badly to 36.Ra8+
But 35...Qxf6 again seems to save black since 36.Ra7 is again met by Rc1+ followed by a win for black hmmm...this is tough for a tuesday...well, i give up unless i missed something in the Ra7 line... 1/2 this week :(
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| Feb-05-08 | | zooter: ah bad me...i did see that Ra7 threatens both the h7 square and f8 square (the queen is overworked and in fact i did post all this initially in my comment before removing it...) What I did not notice was the the white king has to move to h3 after g2.... One more continuation that has not been discussed here (so far) is: 35.Ra7 Rc1+ 36.Kh2 Rc2+ 37.Kh3 Rh2+ 38.Kg4! and black rook has no more checks....very difficult for tuesday in my opinion (looking at a 6-ply after the initial move to ensure that white doesn't get mated) |
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Feb-05-08
| | OBIT: <zooter>: After 36...Rc2+ 37. Kh3 Rh2+ 38. Kg4 gxf5+ is not so clear. This play for a perpetual is brutal. |
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Feb-05-08
| | mkrk17: I got this as a solution:
1. exf6 Qxf6
2. fxg6 and black is in a spot as he cant avoid Qxh7#. If he moves the queen, his rook is gone with mate. If he moves his rook, then there is Ra8#. Can anyone with an engine let me know what is wrong with this solution ? |
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| Feb-05-08 | | jovack: Remove the defender and mate.
Or in this case, win the queen.
It's all over for black regardless of what transpires. |
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Feb-05-08
| | mkrk17: <zooter: <mkrk17: I got this as a solution:
1. exf6 Qxf6
2. fxg6 and black is in a spot as he cant avoid Qxh7#. If he moves the queen, his rook is gone with mate. If he moves his rook, then there is Ra8#. Can anyone with an engine let me know what is wrong with this solution ?> What about Qh3+? after 35.exf6 Qxf6 36.fxg5 > I guess you meant Qxh4+ for black. But then white's queen at h6 can take blacks queen at h4. |
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Feb-05-08
 | | al wazir: <mkrk17: 1. exf6 Qxf6 2. fxg6> Qg7. <zooter: 35.Ra7 Rc1+ 36.Kh2 Rc2+ 37.Kh3 Rh2+ 38.Kg4> gxf5+, and if 39. Kxf5, then 39... Rxh4. |
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Feb-05-08
| | HelaNubo: <OBIT: <zooter>: After 36...Rc2+ 37. Kh3 Rh2+ 38. Kg4 gxf5+ is not so clear. This play for a perpetual is brutal.> It is very clear indeed, obit. 36... Rc2+ 37. Kf3! (and not 37. Kh3??) Rf2+ 38. Kg4 gxf5+ 39. Kh3 Rh2+ 40. Kxh2 Qxe5+ 41. Kh3 and black has no more checks:
click for larger view
Mate is not to avoid. "Time to die". |
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Feb-05-08
| | dzechiel: Wow. Reading all of the posts on ways to sac the rook to get checks tells me two things: 1) I didn't give this "easy" position nearly enough study time, and 2) No way is this position "easy". <MAJ>, how far into the week does this position show on your scale? |
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| Feb-05-08 | | zooter: <HelaNubo: <OBIT: <zooter>: After 36...Rc2+ 37. Kh3 Rh2+ 38. Kg4 gxf5+ is not so clear. This play for a perpetual is brutal.> It is very clear indeed, obit. 36... Rc2+ 37. Kf3! (and not 37. Kh3??) Rf2+ 38. Kg4 gxf5+ 39. Kh3 Rh2+ 40. Kxh2 Qxe5+ 41. Kh3 and black has no more checks:> So to get this puzzle, you need to see the moves till here? Since this line seems to be black's best defense? |
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| Feb-05-08 | | Manic: So it seems <HelaNubo> is correct. I guess that in order to get this puzzle you probably would need to see this line. 37.Kf3! and 38.Kg4 are crucial and the point is that after 38...gxf5+ the black queen can no longer check on f5 because it is blocked by the pawn (compare to 37.Kh3 Rh2+! 38.Kxh2 Qxe5+ 39.Kh3 <Qxf5>) |
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Feb-05-08
 | | MostlyAverageJoe: <al wazir: <mkrk17: 1. exf6 Qxf6 2. fxg6> Qg7> Or 2...Rc7 |
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Feb-05-08
| | MostlyAverageJoe: <dzechiel: 2) No way is this position "easy". <MAJ>, how far into the week does this position show on your scale?> About midpoint between Wed. and Thu. Very nasty to analyze, and <HelaNubo> has captured the essence. The quickest mate is in 11 moves. The beginning of the mainline that has been already described is pretty much forced: 35. Ra7 <exf6 draws, other moves lose> Rc1+ <other moves lose in 7 or less> 36. Kg2 <anything else loses> Rc2+ <other moves lose in 7 or less> 37. Kf3 <Kh3 draws, other moves lose> Rf2+ <other moves lose in 5 or less> 38. Kg4
but after 38. Kg4, black has many choices of equivalent losses, e.g.: (+mate 7) 38... gxf5 39. Kh3 Qf7 40. Bxf7 Rf3 41. Kh2...
(+mate 7) 38... Rf4 39. Kg3...
(+mate 7) 38... Rg2 39. Bxg2 Qf7 40. Bd5...
(+mate 6) 38... Rb8 39. Rxe7 Rb4 40. Kg3 Rg4...
There is really no point analyzing all of them. Just one sample line. 38. ... gxf5+
39. Kh3 <anything else loses> Rd2 <several other moves lose in 6 or 5, too> 40. Rxe7 <there are several other choices of longer mates here, the end is near now> Rxd3+ 41. Kh2 Rd2+
42. Qxd2 dxe5
43. Qg2 Rf7
44. Re8+ Rf8
45. Rxf8#
So the bottom line is that up to about 40th-41st move, white has to play perfectly. However, the moves are not that difficult to spot, as long as one notices that white K has to avoid the g1-a7 and h2-b8 diagonals (the latter because of Qxe5+) or the e-file. |
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< Earlier Kibitzing · PAGE 1 OF 3 ·
Later Kibitzing> |
sac: 27.Qe3