|
< Earlier Kibitzing · PAGE 5 OF 5 ·
Later Kibitzing> |
| Apr-13-12 | | Oxspawn: <kevin86> Your <gibbous moon> stuck me in the eye with its cusp. |
 |
Apr-13-12
 | | LIFE Master AJ: I saw RxP/h7+ almost instantly ... many minutes later, (OVER 8!) I finally saw RxN/g5+! |
|
Apr-13-12
| | LIFE Master AJ: (White to move.) 
click for larger view Take on b6? |
|
Apr-13-12
 | | sevenseaman: <FSR> About the box, I tend to agree with your interpretation. If it is to denote the only legal move, it wouldn't need to be denoted at all. Spot on with the problem solving. I'll look for something more worthwhile. |
|
Apr-13-12
 | | kevin86: A great escape! White will win the queen on a skewer next move. |
|
| Apr-13-12 | | stst: Main line got to start with
44.RxP+ KxR
45.Qe7+ Kg6
46.Rg8+ Kf5
47.g4+
Then
IF (A)....Kf4
48.QxP+ Kg3
49.Qd6+ Kh4
50.Rh8+ Nh7
51.RxN+ Kg5
52.Qe5+ Kg6
53.Qg7#
IF (B)....Qxg4
48.fxg4+ Kxg4
49.Qe4+ Kg3
50.Qe1+ Kg4
etc
so long WQ does not fall into the trap of being forked by Black N+, White should prevail. |
|
| Apr-13-12 | | stst: < Lack of patience is my major affliction...>
....
9 virtues of Caissa:
1.Imagination
2.Addiction
3.Concentration
4.Mental
5.Patience
6.Tenacity
7.Peaceful
8.Fearless
9.Drill |
|
| Apr-13-12 | | BOSTER: The pinned knight on g5, unprotected black queen on the same "h" file with the king created good conditions for easy combo. So,44.Rxh7 + Kxh7 (forced)
45.Qe7+ Kg6
46.Rg8+ Kf5
47.Rxg5 if fxg5 48.Qd7 with win
if Kxg5 48.Qg7+ and white win.
Even Duras was a great tactician he didn't see a nice combo in the position on the next diagram with white to play.
click for larger view
You can try. |
|
Apr-13-12
 | | hedgeh0g: This one was easy to calculate, since the entire continuation is more or less forced. |
|
Apr-13-12
 | | carn7898: This is how I thought the game should go.
What am I missing?
1.Rxh7+Kxh7 2.Qe7+Kg6 3.Rg8+Kf5 4.Qd7+Ne6 5.Qd5# |
|
| Apr-13-12 | | dragon player: Materially speaking, white is winnning, but black is
threathening to mate in one. The solution is propably
a sequence of checks. I see only one good move:
44.Rxh7+ Kxh7
(44...Kg6 45.Qd3+)
45.Qd3+ Kg7
This move is essential, since you can'tallow the king to escape to f5. (45...Kh6 46.Rh8+) 46.Qd7+ Kg6
(46...Kh6 47.Rh8+)
47.Rg8+ Kh6/5
48.Rh8+
Winning the queen.
Time to check.
----------
Hmmm, I had a quite different variation. Lets check
Rybka.
What a shame. After 46.Qd7+, black can play 46...Qxd7.
How stupid.
4/5 |
|
Apr-13-12
| | carn7898: Here's another line that appears to work that differs from the text. 1.Rxh7+Kxh7 2.Qe7+Kg6 3.Rg8+g4+Kf4 5.Qf6+Kg3 6.Qe5+Ne6 7.Qd5# I still feel that there are defenses that I am overlooking. |
|
Apr-13-12
 | | FSR: <Jim Bartle> You meant <43>...Nxg5. Not 44.hxg5 (different move, different player on move). I wasn't just being a smart aleck (as usual); I really didn't know what you meant. All I see after that move is 44.Qxe6+ Qxe6 45.Rc6 Ral+ and Black draws by perpetual. |
|
| Apr-13-12 | | Jim Bartle: No, I had it wrong. My defense is I was standing my ground. Just to make sure I have it right (now), after hxg5+ by white, what if black takes with the pawn instead of the knight? I got the same result as you did, queen takes the knight, black queen has to take the white queen, Rc6 pins the black queen, but black has the perpetual with the rook going between a1 and a2. I do think black was still thinking aggressively, only of winning (he had a mate in one waiting), so didn't want to concede to the draw. |
|
Apr-13-12
 | | Gilmoy: My childhood writers (Reinfeld, Chernev et al.) labeled this game as <"hammer and tongs all the way">. Decades later, I remember the players, that blurb, snippets of their commentary ("a critical phase centered around the passed pawns" -- "White takes terrible risks because he fears a draw"), and the gist of the combo: both rooks for a Q skewer. The perils of the <non-forcing mate> (by Black): White keeps checking, and strikes first. |
|
Apr-13-12
 | | scormus: That was some game, slightly sorry to see such positive play by B go unrewarded. But Duras was quite special. Not difficult to see 44 Rxh7+, but the trick was to see that 3 moves later Rxg5+ is a killer. |
|
Apr-13-12
| | JG27Pyth: Chernev and Reinfeld in "The Fireside Book of Chess:" If you could only take the score from one chess game to a desert island, this might well be the game." It won a brilliancy prize at Karlsbad 1911 (another went to Teichman the tournament's ultimate winner... a huge round robin of the world's strongest players except for the two giants -- Lasker and Capablanca) -- But the Mammoth book of chess spurns this game. Times and tastes change I guess. I just played this over for my kids and they loved it. Chess world take note: My 6 year old son found 29...Rxd5, no hesitation. |
|
| Apr-13-12 | | BOSTER: <AJ> <I saw RxP/h7+ almost instantly>. When you see 44.Rxh7+, you can't play it before you can find out the result of this sacr. Your <almost instantly> has no real meaning. <scormus> <Not difficult to see 44.Rxh7+, but the trick was to see that 3 moves later Rxg5 is a killer>. |
|
| Apr-13-12 | | mikmik777: White to play: 44.?
Duras vs E Cohn
"Difficult"
White is ahead in material. Black threatens mate in one 44. ...Qg2. White's next move should always gain a "tempo" to prevent mate. Candidate moves: 44.Rxh7+ or 44.Qxg5
44.Rxh7+ Kxh7 45.Qe7+ Kg6 (45.Rc7+ Kh6) 46.Rg8+ Kf5 (46. ...Kh6 Rh8+) 47.Rxg5 Kxg5 (47. ...fxg5 48.Qd5 skewering Black's king and queen) 48.Qg7+
Black loses his queen with 48. ...Kh5 49.Qh7+ or 48. ...Kf5 49.Qd7+.. Time to check..
Got everything right..:) |
|
Apr-13-12
 | | Patriot: White is up a pawn and the exchange.
Black threatens 44...Qg2#
The threat of mate in one simplifies matters--white is in 'desperation mode'. 44.Rxh7+ looks like the only move. 44.Rxh7+ Kxh7 45.Qe7+
A) 45...Kh6 46.Qxf6+ and this game is over.
B) 45...Kg6 46.Rg8+
B.1) 46...Kf5 47.Rxg5+ Kxg5 (47...fxg5 48.Qd7+ skewers the queen) 48.Qg7+ Kh5 (48...Kf5 49.Qd7+  ) 49.Qh7+ Kg5 50.Qxh3 B.2) 46...Kh5 47.Rh8+ Kg6 48.Rxh3+ |
|
Apr-13-12
| | Patriot: Perhaps my 'desperation mode' comment isn't exactly correct. Whether it works or not, 44.Rc2 is a potential defense. If that fails, then 'desperation mode' looks about right! |
|
Apr-13-12
| | FSR: <Jim Bartle> Unless I am missing something, you are right: 43...hxg5! (instead of 43...Nxg5?, as in the game), after which both sides <must> play 44.Qxe6+ Qxe6 45.Rc6 Ral+ and Black draws by perpetual. Or, in Informant-speak, 43...hxg5! 44.Qxe6+! Qxe6 45.Rc6 Ra1+! = (Actually, Black might still be able to hold a draw with something other than 45...Ra1+, but since he's a pawn down it would be stupid not to force it immediately.) |
|
Apr-13-12
 | | Phony Benoni: <carn7898> After 44.Rxh7+ Kxh7 45.Qe7+ Kg6 46.Rg8+ Kf5 47.Qd7+
click for larger viewBlack doesn't have to play 47...Ne6 48.Qd5#; since his knight protects his queen, he can play 47...Ke5 instead. White still wins that position. In fact, it's probably technically better than Duras' continuation; my old Bozo 0.5 computer proclaims 48.Qc7+ to be mate in 10. But at this point, I'm pretty sure Duras just wanted to be sure he got out of this game alive and not bother with trying to calculate something like that. |
|
| Apr-13-12 | | njchess: Move 44 seemed pretty obvious given Black's mate in one. The rook sac to bag the queen was a nice touch. Easy puzzle for a Friday. |
|
Apr-14-12
| | FSR: <Phony Benoni: ... Black doesn't have to play 47...Ne6 48.Qd5#; since his knight protects his queen, he can play 47...Ke5 instead.> No need to bother trying to work out mate in 10. Just 48.Rxg5+ fxg5 49.Qxh3 is easy. |
|
|
|
< Earlier Kibitzing · PAGE 5 OF 5 ·
Later Kibitzing> |
sac: 44.Rxh7+