< Earlier Kibitzing · PAGE 3 OF 3 ·
|Mar-12-08|| ||TheaN: 3/3
29.Nc8+ is obvious.
29....Nxc8? 30.Qd6+ Ke8 31.Qd7+ Kf8 32.Qf7#
29....Ke8! 30.Rxd8 Kxd8 (Bxd8 I had Qd6 with e7... I believe it wins, with the threat of Qd7+ it's unstoppable) 31.e7+? might not be the best Kxc8 32.e8=Q+ Rxe8 33.Rxe8+ which SHOULD win. I have to admit that removing the Bishop seems to refute any counterplay, as Black has to go to c8 anyway due to Qb8+, without a Knight to capture. I think it wins and still deserves the point.
|Mar-12-08|| ||TheaN: Hm. Fritz 11 gives both Ke8 (#15) and Kf8 (#15) mate (of course Rxc8 as well, but that's obvious. My e7+?! gives a +2.5 on depth 20 or something, so definitely worse.|
Analysis by Fritz 11:
1. (#15): 1...Kf8 2.e7+ Kg7 3.exd8R Bxd8 4.Rd7+ Qf7 5.Rxf7+ Kxf7 6.Qb8 Rf8
2. (#14): 1...Ke8 2.Rxd8+ Kxd8 3.Nxb6 Qxb6 4.Qb8+ Ke7 5.Qxg8 Qd8 6.Qg7+ Kd6 7.Rd1+ Ke5 8.Rxd8 a4 9.e7 Kf4 10.e8Q b6 11.Qxa4+ c4
|Mar-12-08|| ||RandomVisitor: After 29.Qf4:
1: George Atwood - Jonathan Wilson, Casual London 1801
click for larger view
Analysis by Rybka 2.3.2a mp : 16-ply
1. (20.68): 29...Qc2 30.Nc8+ Ke8 31.Rxc2 Rxc8 32.Qd6 Rd8 33.Qxb6 Rg7 34.e7 Rd7 35.Qxf6 Rg8 36.Qe6
2. (#15): 29...Rh8 30.Nc8+ Ke8 31.Rxd8+ Bxd8 32.Qd6 Qa4 33.e7 Bb6 34.Nxb6 Kf7 35.Nxa4 Re8 36.Nxc5 Kg7 37.Ne4 Ra8 38.Qxf6+ Kg8 39.Qe6+ Kg7 40.Qg6+ Kh8 41.Qh6+ Kg8 42.Nf6+ Kf7 43.Qg6#
3. (#12): 29...g3 30.Qh6 gxf2+ 31.Kxf2 c4+ 32.Kf3 Rg3+ 33.Kxg3 Rg8+ 34.Kf3 Rg3+ 35.Kxg3
4. (#10): 29...Qxc3 30.bxc3 g3 31.Nc8+ Ke8 32.Nxb6 Rxd2 33.Qxd2 gxf2+ 34.Kxf2 Rg7 35.Qd6 Rg2+ 36.Kxg2 a4 37.Qd7+ Kf8 38.Qf7#
|Mar-12-08|| ||gawain: <mkrk17: I actually thought of taking black's queen by Ra1 and then Ra3. Looked to me like black cant do anything abt it.>|
After 29 Ra1 black can defeat the intended Ra3 and save his queen by moving the bishop 29...Bc7 but then white wins with the same Nc8+ that wins in the actual game
One odd point: pursuing the queen can be fatal for white. 29 Ra1 Bc7 30 Ra3?? Qb6 and now black wins because it is too late for Nc8+
|Mar-12-08|| ||johnlspouge: Wednesday (Medium/Easy): White to play and win
Material: N for B. The Black Ke7 blockades the passed Pe6, which is backed by Re1. The K is a particularly vulnerable blockader. The Re1 is on the same file as Ke7. The Rd1 opposes the Rd8 behind Ne6. The Black Qb3 cannot contribute rapidly to the defense of Ke2. The Qg3 has an entry point at d6, presently occupied by Nd6 and covered by Rd8.
Candidates (29.): Nc8+
29.Nc8+, to deflect Rd8 and unblock e6 for Qg3.
Black could try accepting the sacrifice.
29...Rxc8 30.Qd6+ Ke8 31.Qd7+ Kf8 32.Qf7#
Black must therefore decline.
29...Ke8 [Kf8 30.e7+] 30.Rxd8+
Black has two possibilities for recapture.
(1) 30...Bxd8 31.e7 (threatening 32.Nd6+ and 32.exd8=Q)
Black loses at least a B.
(2) 30...Kxd8 31.e7+ Kxc8
[31...Ke8 32.Nd6+ and 33.e8=Q, winning a R for a P]
32.e8=Q, winning the exchange for P, with a violent attack
|Mar-12-08|| ||GibGezr: I found the same as TheBB:
29. Nc8+ Rxc8 30. Rd7+ Ke8 31. Qd6 Rg7 32. Rxb7
At that point, I stopped looking.
|Mar-12-08|| ||whiteshark: Ask <How can I get my ♕ to d6 or c7?> Thereafter it's easy to find the solution.|
|Mar-12-08|| ||zb2cr: 29. Nc8+ is the dynamite move needed to bring down the walls of Black's position. |
Black's best is 29. ... Ke8; 30. Rxd8+, Bxd8 (30. ... Kxd8; 31. Qd6+ leads to a quick mate); 31. e7, Bb6; 32. Qb8! looks like a win to me.
|Mar-12-08|| ||kevin86: I take 90% credit on this one. I saw what would happen after the capture at c8,but didn't check into some of the nuances if black refused the sac at c8. It does look rather a lost cause for black,however.|
|Mar-12-08|| ||YouRang: Got it! Here, it seemed fairly clear that we would want to bring our queen into the attack, and for that, we need to get our knight out of the way. This has all the earmarks of a clearance sac.|
The obvious try is 29.Nc8+, which has several nice benefits: (1) it vacates d6 for our queen, (2) by giving check, it's forcing, (3) it cannot be taken since 29...Rxc8? leaves d6 wide open for the queen and quick mate. (I was surprised to see that black took it anyways, as the resulting mate-in-3 is quite easy to see.)
This would force 29...Ke8 or 29...Kf8. There are a few variations that can come out of this, but basically they all lose to subsequent Rxd8 and e7, with the queen coming into the attack on the d-file.
Good Wednesday puzzle.
|Mar-12-08|| ||UdayanOwen: Hey guys, for anyone who is thinking of not checking out the game of the day, THINK AGAIN, just in case you don't know there is a SWEET classic by Najdorf.... He allows a bishop to be trapped on move 11, and ends up sacking two pawns and all four minor pieces to mate on move 22!|
|Mar-12-08|| ||Duque Roquero: 29. ...Rxc8? What a bad move. The mate is too obvious.|
|Mar-12-08|| ||mworld: yeah, i was very surprised when i saw 29...Rxc8 myself|
|Mar-12-08|| ||Steve Case: Should've been a Monday offering as I got it move for move (-:|
|Mar-12-08|| ||wals: Noting think:- "fire in the hole""
forward to TPOTD
The black King is in a vulnerable position on the seventh.(Love that talk, makes me feel all professional).
and is subject to check by Nc8 which wraps it up so far as I can see.
29.Nc8 ...Rxc8 30.Qd5+ ...Ke8 31.Qd7+
29.Nc8 ...Ke8 30.Rxd8#
|Mar-12-08|| ||ellhares: <mkrk17: I actually thought of taking black's queen by Ra1 and then Ra3. Looked to me like black cant do anything abt it.> Ra1?? very bad move loss imediately after Bc7 and black in very good position now|
|Mar-12-08|| ||ellhares: the strang here that i cant beleive that these game was played in 1801 its similar to modern chess ine the early period of that centurey!!|
|Mar-12-08|| ||Jason Frost: I thought this was pretty obvious for a thursday, untill I realized it was Wedensday.|
|Mar-12-08|| ||ounos: >D.Observer: Why not 14. ... O-O?
15. Qg5 or 15. Qh4 is pretty much over.
|Mar-12-08|| ||zb2cr: <ounos>,
In your comment replying to <D.Observer>, you wrote: "15. Qg5 or 15. Qh4 is pretty much over."
Not really. Either of those moves is met by 15. ... Nd8 and Black has time to defend the threatened mate by ... Ne6.
Much simpler is 15. Qxd7--castling away has left the Black Queen hanging.
|Mar-12-08|| ||UdayanOwen: <wals: The black King is in a vulnerable position on the seventh.(Love that talk, makes me feel all professional).>|
Thanks for providing this funny... :)
<Wals continued: 29.Nc8 ...Rxc8 30.Qd5+ ...Ke8 31.Qd7+
29.Nc8 ...Ke8 30.Rxd8#
What about your brain score? Well the celebrations were perhaps a bit premature since 30.Rxd8# is actually met by 30...Bxd8 or 30...Kxd8.
However, for finding the first two moves of the main line, I will take the liberty of awarding you .25 per hemishphere. Then I will throw in a humour bonus for your right hemisphere, for all the mirth you provide to <CG>:
L = .25, R = .75
|Mar-12-08|| ||MostlyAverageJoe: <ellhares: <mkrk17: I actually thought of taking black's queen by Ra1 and then Ra3. Looked to me like black cant do anything abt it.> Ra1?? very bad move loss imediately after Bc7 and black in very good position now>|
Nonsense. 29.Ra1 Bc7 leads to a forced win by white, although <mkrk17>'s would have to change his plan of playing Ra3. Here's how:
29. Ra1 Bc7 30. Nc8+ Rxc8 31. Rd7+ Kf8 32. Rxc7 Qb6 33. Rxc8+
and while this (brain-produced) line looks good enough for a win, Hiarcs claims a forced mate: 33 ... Kg7 34. Rxg8+ Kxg8 35. Rd1 Qc6 36. Qb8+ Kg7 37. Rd7+ Qxd7 38. exd7 b6 39. d8=Q a4 40. Qg8+ Kh6 41. Qg6#
Should black play something else, e.g., 29...Rg7, then 30.Ra3 wins the white Q for a rook and the game (although there are more forcing lines for white).
So yes, <mkrk17>'s ideas works OK.
|Mar-13-08|| ||euripides: <MAJ, ell>
I posted the following comment earlier: <Against 29.Ra1 Black might play 29...Bc7 and if 30.Ra3 then Qb6, saving the queen and organising some sort of defence. If <29.Ra1 Bc7> 30.Nc8+ Rxc8 31.Rd7+ Ke8 32 Rxc7 Rd8 White still looks much better but it doesn't look as decisive as the game.>
<MAJ> Not sure where you started your computer analysis, but Black's 31st and 32nd are not obvious to me in your 'brain-produced' line <29. Ra1 Bc7 30. Nc8+ Rxc8 31. Rd7+ Kf8 32. Rxc7 Qb6 33. Rxc8+>
|Sep-11-09|| ||WhiteRook48: 29 Nc8+ clearance|
|Dec-26-18|| ||HarryP: Nice game.|
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