< Earlier Kibitzing · PAGE 1 OF 3 ·
|Jan-22-11|| ||Phony Benoni: With a pawn up, it looks like White to win. Drawing would probably be easy with the opposite bishops.|
In bishop endings with rook pawns, I always check first to see if the bishop is the right color to help the pawn queen. Here it is, so that eliminates one method of defense for Black. There don't seem to be stalemate possibilities, but White's king is in a tricky position. He can't play 56.Kxh7, for instance.
It looks like one of those positions where White has to make something of his kingside pawns. I'm thinking 56.g4 Rxf3, and now 57.Kxh7 is possible and looks more promising than 57.g5, intending to manufacture a passed pawn on g6 but opening up the h-file to checks.
After 57.Kxh7, White is just going to push the g-pawn. His bishop is on a perfect square. There's certainly plenty to come, but that's how I'd start.
|Jan-22-11|| ||dzechiel: White to move (56?). White is up a pawn. "Very Difficult."|
Well, moves are no longer jumping off the screen at me. I had to look at today's position for some time before I even found a move I liked a little.
It doesn't look like white will be weaving a mating net here, in fact, it's white that should be concerned about such possibilities.
But what does stick out is the black rook. Is there some way to trap the rook? Maybe, maybe not. But we should certainly consider it. How about...
This protects our bishop, giving our rook some maneuvering room and threatens 57 g4, which would attack the trapped rook.
Black has a couple of ways to save the rook, the most obvious being
But that then allows
57 Rg1 Bf3
Ugh. This isn't turning out well at all. So much for 56 f4. Time to regroup.
Hmm..., OK, perhaps
is the right idea. Trade the f-pawn for the h-pawn and try to promote ahead of black. Let's see.
56...Rxf3 57 Kxh7
Now what does black do? White would like to exchange rooks here, his connected g- and h-pawns will be able to promote, while his bishop would safely keep black's b-pawn supervised.
I don't have anything more here, I'm not even sure this is the right idea. Time to check.
Hey! I had the right idea. Let's look at the kibitzing.
|Jan-22-11|| ||rilkefan: Couldn't make f4 work, which is a shame. I'm torn between Re2 to support f4, and just g4. In the former line, I have ideas of 56...Bc4 57. Re4, with the threat of Rf4, not sure if this actually accomplishes anything. In the latter line, White takes h7 and pushes the pawns, looks pretty fatal as Black doesn't have Rg3. So g4 looks clearer, but I'd rather learn that Re2 works.|
|Jan-22-11|| ||An Englishman: Good Evening: Peculiar--I saw the game continuation very quickly, and it's exactly what I would have played in the old days, but felt convinced that there was a better line that I had missed.|
|Jan-22-11|| ||MiCrooks: This one the moves did jump off the screen. g4 cried out to be played. Rxf3 is forced and after Kxh6 the connected passed pawns along with White's superior King position will win it for White.|
I do wonder if there is any better defense than what Black played for. For instance, if he can give the Bishop up for the pawns he can draw. Working to trade Rooks was a mistake (by a strong American GM) as the opposite colored Bishop endgame is dead lost. I guess you can only really call it a mistake if there was something better he could have done.
|Jan-22-11|| ||Jimfromprovidence: I have a strong feeling that there's a fortress after 56 g4 Rxf3 57 Kxh7 Rh3 58 Kh6 Rh4 59 Kg5 Rh3, below.|
click for larger view
If 60 h6, then 60...b5.
click for larger view
I can't see a breakthrough sequence for white.
|Jan-22-11|| ||Phony Benoni: <JimfromProvidence> In the last diagram, how about <61.Bf6 Be6 62.Rxe6 Kxe6 63.Kg6>? Looks like the h-pawn marches.|
If Black doesn't move 61...Be6, then White's rook gets to the 7th rank, supporting h6-h7.
|Jan-22-11|| ||rilkefan: Doesn't Bf6 win?|
|Jan-22-11|| ||Stormbringer: Yet again I picked the right move for the wrong reasons. Board blindness had me convinced the Rook couldn't escape after g4. Oops :D|
|Jan-22-11|| ||Jimfromprovidence: <Phony Benoni> <In the last diagram, how about <61.Bf6 Be6 62.Rxe6 Kxe6 63.Kg6>? Looks like the h-pawn marches.
If Black doesn't move 61...Be6, then White's rook gets to the 7th rank, supporting h6-h7.>|
After 61 Bf6, then with 61...Kf8 62 Re7 Ba2, it looks like black's bishop controls the b1-h7 diagonal and the white king has nowhere to go.
click for larger view
|Jan-22-11|| ||rilkefan: I figured that in the above position white could play Bg7 to hold h6 and with the rook on say b7 threaten mate or just push g4.|
|Jan-22-11|| ||rilkefan: Hmm, looks a little harder than I thought, but I think Rf5 (maybe after taking the b pawn, with the black king pushed out of the kside) keeps the pawns moving.|
|Jan-22-11|| ||Once: I've often wondered why we talk about the "nick" of time...|
Actually, that's not entirely true. I've occasionally thought about it, maybe <once> or twice before and certainly not as often as I have postulated about what certain female celebrities would look like in their nethergarments.
Where was I? Oh, yes, the nick of time. Odd phrase. Like "just in time", only a little weirder. Now that would be funny, a birth announcement in the Times (one for <hms123> perhaps) "To Mr and Mrs Time, a son, Justin".
In the starting position, white has two tempting plans. He can either play to trap the black rook with f4 and g4 or he can play to push his h pawn (backed up by the Be5's control of h8).
It turns out that there are problems with both plans. The immediate 56. Kxh7 runs into 56...Rxh5#. Ooops. Black stops white's plan in the nick of time or ITNOT as we should probably say in this internet age of LOLs and IMHOs.
And 56. f4 Bxg2 followed by something like Bf3 doesn't appeal either. White has split his pawn majority and will find it hard to defend his h pawn.
A slow move like 56. Re3 followed by g4 appeals, but it does allow black the one move he needs to play Kg8 (ITNOT). Then although white is still comfortable, the h7 pawn is defended and we still have work to do.
But as George Orwell should have said: "All pawns are equal but some are more equal than others". The key move is 56. g4 to exchange the white f pawn for the black h pawn. At first glance this looks like a poor trade for white. The f pawn is a connected passed pawn and the h pawn is a sickly isolani. Isolani is a lovely word, BTW, suggestive of being a resident of the mythical land of Isolus which exists somewhere in a rift in the space-time continuum between the d and e files. But I digress...
After 56. g4 Rxf3 57. Kxh7 Rh3, we arrive here
click for larger view
And now we have another ITNOT situation. Black threatens Rh4 and Bf3 to gang up on the g pawn. So white needs to play either 58. Kh6 to bring his king back to g5 ITNOT or he needs to play 58. h6 when Rh4 can be met with g5.
Strange. We have a succession of tough puzzles and the week is heading for a poor score then ITNOT comes a relatively easy Saturday and we can feel better about ourselves.
|Jan-22-11|| ||Once: <Jimfromprovidence> I am struggling to see how white doesn't win this. From your last diagram, can't we play something like 63. Rb7 threatening both h7 and Rxb5?|
|Jan-22-11|| ||newzild: I went for the game continuation (at least as far as 58.Kh6), but I was surprised to see Black reduce material by exchanging rooks, as the pure opposite-coloured bishops ending is lost. The interesting attempt at a blockade suggested by <jimfromprovidence> suggests that it was indeed better to retain rooks.|
Like some other posters, I thought f4 was a good plan. The idea is to continue by g4-g5. In a real game, I think I would play 56.Re2 (protecting g2, and covering b2 with both rook and bishop, which restricts Black's counterchances with the b-pawn.), followed by 57.f4 and 58.g4.
I knew that this plan was not the puzzle solution, though, as it is not sufficiently forcing.
|Jan-22-11|| ||newzild: <jimfromprovidence>, I agree with <once>. The position in your last diagram is lost, because the bishop is on the wrong diagonal. The blockade might work with the bishop posted on the b1-h7 diagonal, but not on the a2-g8 diagonal. Black cannot stop h7-h8.|
|Jan-22-11|| ||newzild: Hmm. 61...Kf8 62 Re7 Ba2 63. h7 Bb1 64. h8=Q+ Rxh8 65. Bxh8 Kxe7 is indeed a draw, so maybe Black does have time to get his bishop on the b1-h7 diagonal after all, Msrs <jimfromprovidence> and <once>.|
|Jan-22-11|| ||cyclon: Without trying to get "in-depth" analysis, what occurs to me is the continuation; 56. g4 Rxf3 57. Kxh7 and it "seems" that White has better prospects but cannot say clearly whether it is "cufflinks" for him.|
|Jan-22-11|| ||mike1: Jimfromprovidence
comments are valid as always. But I think that white can improve on his line 56 g4 Rxf3 57 Kxh7 Rh3 58 Kh6 Rh4 by playing 59.Rf1+ taken the f3 square away from the bishop. If Kg8 then simply 60.g5, if the king goes to e6 then 60.Kg5 attacking the rook.
|Jan-22-11|| ||cyclon: cyclon: cyclon: <Jimfromprovidence: I have a strong feeling that there's a fortress after 56 g4 Rxf3 57 Kxh7 Rh3 58 Kh6 Rh4 > I wouldn't play here 59. Kg5, but 59. Rf1+ INSTEAD. This intermediate check leaves Black with 5 King-moves of which each should be investigate. Inferior seems to be 59. -Kg8, because 60. Bd6 threatens already mate. If 59. -Ke6, THEN (NOW under ANOTHER circumstances) comes 80.Kg5 and Black King is CUT-OFF from the King-side. Without going into detailed analysis (no computer-help) I would add, that there is in some variations the idea -if g5 and -Bf3 are played- of an exchange-sacrifice ( or, as in Finnish language, the determination IS a "Quality"-sacrifice ) Rxf3. I do not claim a "winning-game" for White per se, rather better prospects.|
|Jan-22-11|| ||newzild: "<jimfromprovidence> I have a strong feeling that there's a fortress after 56 g4 Rxf3 57 Kxh7 Rh3 58 Kh6 Rh4 59 Kg5 Rh3, below."|
I've had a fresh look at this, and I think that after 56.g4 Rxf3 57.Kxh7 Rh3 58. Kh6 Rh4, White can try 59.g5! Bf3 60.g6+ Kg8 (otherwise Black loses his rook to a discovered check) 61.Kg5 Rxh5+ 62.Kf6, when Black is in a back-rank mating net from which I can see no escape.
I wish I knew how to do diagrams, so I could show this interesting position...
|Jan-22-11|| ||Fuegoverde: 56 g4 Rxf3, 57 Kxh7 and then try to push the passed pawns. I can't find anything else in this position.|
|Jan-22-11|| ||cyclon: <newzild: jimfromprovidence I have a strong feeling that there's a fortress after 56 g4 Rxf3 57 Kxh7 Rh3 58 Kh6 Rh4 59 Kg5 Rh3, below."|
I've had a fresh look at this, and I think that after 56.g4 Rxf3 57.Kxh7 Rh3 58. Kh6 Rh4, White can try 59.g5! Bf3 60.g6+ Kg8 (otherwise Black loses his rook to a discovered check) 61.Kg5 Rxh5+ 62.Kf6, when Black is in a back-rank mating net from which I can see no escape.> I also looked at this variation FIRST, but please-could you show me a FORCED win for White after 62. -Rh1? Clearly 63.Re3 (Rxh1 is a draw)-Rf1 and now, for example 64.Rc3 Bg4+ (h3-c8 diagonal) 65.Ke7 (Kg5 Rf5+)-Re1 66.Kd6 Rxe5 67.Kxe5 Kg7 it's not clear. Or 64.Ke7 Bh5 65.Rd3 (Rh3 Rf5 66.Ke6/d6 Rxe5/+, /Rg3 Re1, /g7 Rf7+)-Bxg6 66.Rd8+ Be8 Black King escapes for the moment.
|Jan-22-11|| ||OhioChessFan: Posting a message from Lifetime Achievement winner <Honza Cervenka>|
Call for Aneta’s voters! Vote early, vote often!
Dear chess friends! Great final poll of regional daily KLADENSKY DENIK for the most sympathetic baby of year 2010 has started and my little girl needs your support again. The poll is running since January 22, 12.00 CET, till February 5, 12.00 CET. The rules are the same as the last time, i.e. it is possible to send one vote after every 60 minutes from one IP address. If you want to support Aneta, just click on http://kladensky.denik.cz/miminka/m..., flag the name <Aneta Červenková> in the grey box on the right side of the screen and hit the <hlasovat> button below. If you see a notification “Děkujeme za váš hlas” (Thank you for your vote) after that, then you have voted successfully. And if you see a notification “Došlo k opakovanému hlasování” (Repeated voting has occurred), then you should try to vote a bit later again....:-D
|Jan-22-11|| ||OhioChessFan: <newzild> it's rather easy. FEN Help Page|
< Earlier Kibitzing · PAGE 1 OF 3 ·