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< Earlier Kibitzing · PAGE 2 OF 2 ·
Later Kibitzing> |
| May-06-16 | | alfiere nero: I saw the main local ideas, but still lacking global ability missed completely the importance of the open b-file. I've got to remind myself to look at the whole board, not just where the immediate action is. |
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| May-06-16 | | User not found: I saw Rc7+ but even after going through the game I don't see how white wins. |
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| May-06-16 | | mel gibson: Not too hard tonight.
I saw that it was either 35 e6+
or 35 R-c7+
I like the 2nd one better as it left the King out in the cold - unprotected. |
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| May-06-16 | | Cheapo by the Dozen: I'm with everybody else. It's easy to see that the correct line is: 1. Promising.
2. The only thing that could possibly work. |
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| May-06-16 | | marinkatomb: After 25..Nd3 I rather liked blacks position. He can start opening up the h-file, lovely pieces, etc. But 26.b3! is such a powerful and simple plan. Great game! Weird opening. |
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| May-06-16 | | Modulo: White to play 35. ? "Difficult"
Black threatens immediate checkmate, so every one of White's moves has to be a check. 35. Rc7+ Kxc7 (forced)
36. Qe7+
Because of 36. ... Kc6 37. Qb7# black's king has to enter the B file a) 36. ... Kb8
37. Rb1+ Ka8 (Qb3 is mate after Rxb3 and Qb7#)
38. Qxf8 Ka7
39. Qb8+ Ka6
40. Qb6#
b) 36. ... Kb6
37. Nxc4+
37. Rb1 Ka6! and I don't see a good check for White
Now black's king can go to a6, c6, b5
b1) 37. ... Kc6
38. Qd6+ Kb7 (Kb5 transposes into b2))
39. Rb1+ Ka7 (If Ka8, mate starts with Qxf8 like in a))
40. Qe7+ Ka6
41. Rb6+ Ka5
42. Qa7#
b2) 37. ... Kb5
38. Rb1+ Kxc4
Everything else loses on the spot: Ka6 Rb6#, Kc6 Qb7#, Ka4 Qd7+ Qc6 Qxc6#. 39. Qc5+ Kd3
40. Rb3+
White will clear the threatmate and will be up a queen for a rook. b3) 37. ... Ka6
38. Qd6+ Ka7 (entering the B file transposes into b1) or b2))
39. Qc7+
And mate in the next move (Ka6 Qb6#, Ka8 Nb6#)
Time to check.
D'oh! Messed up line b3) because I did not see Qb7 and did not see the mate in b2). |
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| May-06-16 | | thegoodanarchist: Black found the Frode to Hell is paved with good intentions. Did Black win? Frode not. |
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| May-06-16 | | Castleinthesky: Very easy for a Friday, which I never usually get. |
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| May-06-16 | | kevin86: Desperation time (since white is threatened with immediate mate) The rook sac sets off a long series of checks which lead to victory. |
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| May-06-16 | | NBZ: Does this work too? Rc7+ Kxc7 Nb5+ Kb7 Qe7+ and now: 1) Ka6 Qa7+ Kxb5 Rb1+ Qb3 Qxa2!
2) Kb6 Qc5+ Kb7 Qc7+ Ka6 transposes to the line above. But the game solution is perhaps neater; it's just I completely missed Nxc4 in my head. |
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| May-06-16 | | dfcx: black is about to play Qg2#, so white's moves must be checks. 35.Rc7+ Kxc7 36.Qe7+
A. 36...Kc6? 37.Qb7#
B. 36...Kb8 37.Rb8+ Ka8 38.Qxf8+ Ka7 39.Qb8+ Ka6 40.Qb6# C 36...Kb6 37.Nxc4+ (this is the only winning move, and white queen needs to stay on the a3-f8 diagonal) C1. 37...Kb5 38.Qc5+ Ka4 39.Nb6+ Kb3 40.Rb1+ Rb2 41.Qc4+ Qa3 42.Qa4# C2.37...Kc6 38.Qd6+ Kb7 (Kb5 same as C1) 39.Rb1+ Ka7 (Kc8 40.Rb8#) 40.Qc7+ and mate next C3. 37...Ka6 38.Qd6+ Ka7 39.Qc5+ Ka8 (all other moves lead to mate) 40.Qxf8+ wins eventually because black king has to stay on the A file to avoid mate |
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| May-06-16 | | RandomVisitor: After 35.Rc7+ Komodo maneuvers the White Queen to check on c7, forcing a queen exchange. Then it goes after a pawn promotion.
click for larger viewKomodo-9.42-64bit:
+250.00/43 35...Kxc7 36.Qe7+ Kb6 37.Nxc4+ Ka6 38.Qd6+ Ka7 39.Qc5+ Ka8 40.Qxf8+ Ka7 41.Qxf7+ Ka6 42.Qxg6+ Ka7 43.Qf7+ Ka6 44.Qe6+ Ka7 45.Qe7+ Ka6 46.Qd6+ Ka7 <47.Qc7+ Qb7 48.Qxb7+ Kxb7 49.e6> Ra8 50.e7 Kc6 51.e8Q+ Rxe8 52.Rxe8 Kd5 53.Re5+ Kxd4 54.Rxf5 h4 55.gxh4 |
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| May-06-16 | | dfcx: <NBZ: Does this work too? Rc7+ Kxc7 Nb5+ Kb7 Qe7+ and now:> No. after Nb5+ black can play Kc8 instead of Kb7. Now white runs of checks quickly and loses. |
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| May-06-16 | | stst: The Black K is pretty much trapped in the corner around a8, though the Black Q can mate in one, and rules over the diagonal a8-h1.
So White has play ALL-IN & check in every move, until mating the Black K, or lose immediately.
The spot check is given by a R-sac:
35.Rc7+ KxR
36.Qe7+ (good that N is guarded by the e5 P)....
(A)
36................Kc6
37.Qb7#
(B)
36..................Kb6
37.Rb1+ Ka5
38.Nxc4+ Ka6
39.Rb6#
(C)
36...............Kb8
37.Rb1+ Ka8
38.Qxf8+ Ka7
39.Qb8+ Ka6
40.Qb6# |
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| May-06-16 | | Moszkowski012273: Good lord! 34.Rb7+... is much stronger!!! |
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| May-06-16 | | Moszkowski012273: AND I still want to meet this <chrisowen> guy...... |
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| May-06-16 | | alfiere nero: Yeah, I like 34. Rb7! |
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| May-06-16 | | Moszkowski012273: Thanks <alfiere>! |
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| May-07-16 | | King.Arthur.Brazil: Not much to comment, Rc7+ Kxc7 Qe7+ and Nxc4+ the Q and N attack win. |
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| May-07-16 | | Al2009: <RandomVisitor>
34. Rxc6?! was not the best move, as it wins just in the endgame. But White could win faster, also forcing mate, after: 34. e6+!!
and then A) 34...Kxd6 or B) 34...fxe6
A) 35. Qe5+! Ke7 (only) 36. exf7+ Kxf7 37. Qe6+ Kg7 38. Rxc6 Qg4 (only) 39. Rc7+ Kh6 (only) 40. Qd7! h4 (only, if 40...Rg8, or 40...Rh8 White plays 41. Qh7+ or Qg7+ and then 42. h4#) 41. Qg7+ Kh5 42. Qh7+ Kg5 43. Rc6!! Qxd4+ 44. Kg2 Rg8 (White's Rook cannot be taken for Qxh4# and check 44...Qd5+, or 44...Qd2+ is useless after 45. Kh3!) 45. Ree6! and wins B) 35. Qxe6+ Kc7 36. Qe7+! Kxb6 37. Nxc4+ Kb5 38. Qc5+ Ka6 39. Ra1+ Kb7 40. Rb1+ and again White forces mate in a few moves. As you can see, White could force mate in 10-12 moves, with several nice "problem-like" moves, instead of winning an endgame after exchanging the Queens... This is a TCFA (= totally computer free analysis) Check please, and let me know what you find with "Komodo"... |
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| May-07-16 | | CHESSTTCAMPS: In this two-way attacking position, white is up a knight up with a potent combination of pieces attacking a lightly protected king. However, black threatens 35... Qg2#, with white having no viable defensive move to stop mate, e.g. 35.Re2?? Ra1+ forces mate. This means that white must keep checking until he has a mate or a won position. Fortunately, Q+N work together well, so there is a way: 35.Rc7+! Kxc7 36.Qe7+ Kb6 (Kf6? 37.Qb7#; Kb8 37.Rb1+ Ka8 38.Qxf8+ Ka7 39.Qb8+ Ka6 40.Qb6#) 37.Nxc4+! (Rb1+?? Ka6 leaves white without a satisfactory check) Ka6 (Kb5? 38.Qc5+ Ka4 [Ka6 39.Qb6#] 39.Nb6+ Kb3 40.Rb1+ Rb2 41.Qb5+ wins) 38.Qd6+ Ka7 (Kb5 39.Qc5+ transposes to previous parenthesized note) 39.Qf5+ Ka8 (Kb7/b8 40.Rb1+ etc) 40.Qxf8+ Ka7 41.Qe7+ Ka8 42.Qd8+ Ka7 43.Qc7+ Qb7 (Ka8 44.Nb6#) 44.Qxb7 wins. Time for review... |
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| May-07-16 | | CHESSTTCAMPS: On the money. Good problem for "long-distance" vision, even though the options are relatively limited. |
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| May-07-16 | | Al2009: <CHESSTTCAMPS>
Why are you wasting my time and yours?
I proved that 34. Rxc6 is not the best... |
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| May-07-16 | | RandomVisitor: <Al2009><A) 35. Qe5+! Ke7 (only) 36. exf7+ Kxf7 37. Qe6+ Kg7 38. Rxc6 Qg4 (only) 39. Rc7+ Kh6 (only) 40. Qd7! h4 (only, if 40...Rg8, or 40...Rh8 White plays 41. Qh7+ or Qg7+ and then 42. h4#) 41. Qg7+ Kh5 42. Qh7+ Kg5 43. Rc6!! Qxd4+ 44. Kg2 Rg8 (White's Rook cannot be taken for Qxh4# and check 44...Qd5+, or 44...Qd2+ is useless after 45. Kh3!) 45. Ree6! and wins> Nice work, but 43...Rg8 probably draws in that line |
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| May-07-16 | | Al2009: Amendment ( a little typo)
34. Rxc6?! was not the best move, as it wins just in the endgame.
But White could win faster, also forcing mate, after: 34. e6+!!
and then A) 34...Kxd6 or B) 34...fxe6
A) 35. Qe5+! Ke7 (only) 36. Qc7+! (and not 36.exf7+) Kf6 37. Rxc6 and White wins in a few moves, for instance a1) 37…Ra2 38. e7+! Kg5 ( if 38…Kg7 39. Qe5+! Kh7 40. exf8 = N+! Kg8 41. Rxg6+! fxg6 42. Qe6+ and then mates) 39. Qf4+! Qxf4 40. gxf4+ and White wins the Queen a2) 37…Rac8 38. e7+ Kg7 39. Qe5+ Kg8 40. Rxc8 Rxc8 41. e8 = Q+ Rxe8 42. Qxe8+ Kg7 43. Qe5+ and then a mating net after Qf6 a3) 37…fxe6? 38. Rexe6+ 
B) 35. Qxe6+ Kc7 36. Qe7+! Kxb6 37. Nxc4+ Kb5 38. Qc5+ Ka6 39. Ra1+ Kb7 40. Rb1+ and again White forces mate in a few moves. The difference with 34. Rxc6?! is that 34. e6+!! gains a tempo and does not allow the immediate 34…Ra2 as in the game (keeping also the a column free for the checks Ra1+/Rb1+) |
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Kibitzing
sac: 35.Rc7+