Play chess online, free chess online, chess puzzles, board games, free online chess games, chess teams, chess games, chess league, chess clubs, online games, chess games database and more...

Tags: online chess, play chess, play chess online, play chess online, chess, chess, word games

Chess Forum
play-chess-online.com   << - < - > - >>
FromMessage
Posted by aixrad
play-chess-online.com

9/05/2008
05:18:31

play online chess
Subject: Checkmate or not

Message:
Hello,

I recently played with black this game game with pianofred.

In this Position



I generated the conditional move 20 Rf2 Re1+ ... with threefold repetition to save the draw because I had less material.
pianofred mean I maybe could checkmate him forces but we both don't know how.

Is this a forced checkmate position?

Was it right to save the draw with threefold repetition?

Greetings

Ralf


Posted by beefturnmail
play-chess-online.com

9/05/2008
05:49:19

play online chess


Message:
Yes, it is forced checkmate as follows: 20. Rf2 Re1+ 21 Rf1 Qxf1#

Posted by aixrad
play-chess-online.com

9/05/2008
06:36:33

play online chess


Message:
Oh, now I see it.
Then I wa very stupd and blind at that moment


Posted by chessnovice
play-chess-online.com

9/05/2008
21:39:08

play online chess
put a positive spin on it

Message:
You're just more generous than you thought. :]

Posted by ionadowman
play-chess-online.com

9/07/2008
13:55:23

play online chess
Incidentally...

Message:
...there is a second, closely related, checkmate: 21.Re1+ Rf1 22.Rxf1#. I think we all get afflicted by chess hallucinations and mirages from time to time. Clearly the material deficit was preying on your mind when White stopped your threatened mate on h2. Suddenly the BQ was shorn of its power to move diagonally!
Bad luck,
Ion


Posted by wuzzie
play-chess-online.com

9/11/2008
04:13:47

play online chess
not checkmate

Message:
after 20.Rf2 it is mate, but if white plays 20.Qg4+ it forces trade of Queens and black is a piece behind but still has a free pawn but I think white could defend thatone

Posted by lighttotheright
play-chess-online.com

9/11/2008
11:59:11

play online chess


Message:
I agree that it is not checkmate.

Aixrad, you did well to accept a draw in this position.

After wuzzie's 20. Qg4+ Qxg4 21. fxg4...Rxb2 22. Nd2 would have left White with a possible decisive advantage. Although Black would have 2 passed pawns, the vertical isolation would have been difficult to defend. White would have opportunities to open his own passed pawns along the King-side once the black h pawn fell. And don't forget that White would still have an extra piece to fight in this position. Black cannot defend everything under best play.


Posted by heinzkat
play-chess-online.com

9/11/2008
12:04:46

play online chess


Message:
We are talking about this position after White's 23rd move:



Should Black play 23. ... Re2, taking the draw because of threefold repetition, or should Black play 23. ... Qxf1#/Rxf1#, taking the win because of checkmate. You cannot say that Black did well to take the draw in this position !?!?!???


Posted by lighttotheright
play-chess-online.com

9/11/2008
12:18:58

play online chess


Message:
I agreed with wuzzie that after 20. Re2 it was mate; but not in the position shown with white to move in the first post.

It depends upon what position you are talking about.

That is the danger of talking about this game or any like it. If you analyse a different position, you can get entirely different conclusions.


Posted by tugger
play-chess-online.com

9/11/2008
15:27:10

play online chess


Message:
I agree with heinzkat. I don't intend to critisise anybody's game, but Black has a forced win in 1 at one stage, to then suggest he did well to draw is, quite frankly, ludicrous. There may well have been a stage of the game earlier, perhaps even just a couple of moves previous, where a draw for Black could be considered a good result, but after 20. Rf2?? it's a different matter entirely, as Black has a forced mate in two from that position, and even makes the correct first move to give him the win in one more.

For reference, White should have played 20. Qg4+ and he probably wins, forcing the Queens off the board with a pawn advantage (just the one pawn, as b2 is vulnerable to capture from the Rook). Better still would be to develop the Knight as opposed greedily snatching the pawn on move 19.


Posted by tugger
play-chess-online.com

9/11/2008
15:33:07

play online chess


Message:
Having re-read the thread, I can see where lighttotheright is coming from...

The position in the first post is not a win for Black, as it is White to move, and he can save with Qg4+. It is only after White plays Rf2 that it becomes a win for Black.

But I would still say that a draw for Black after missing a mate in one can not be considered a good result.


Posted by lighttotheright
play-chess-online.com

9/11/2008
22:11:00

play online chess


Message:
Wait a minute. He made a decision to draw on move 20.

Then White made a mistake and Black did not take advantage of it. That's compounding mistakes. Both sides clearly intended the draw by repeating the position shown by aixrad on move 20. It did not matter that the repeating sequence was flawed. Neither player could see that flaw. Aixrad asked about the exact position he displayed in the first post. I merely confirmed wuzzie's analysis of that exact position.

This game was a draw by repetition not by an accepted draw on move 20. It lasted longer than that (I knew that all along). The presumptive acceptance of a draw on move 20 was what I commented on...not the mistakes made later. The line of play I gave as example proves what I was talking about.

To later criticize me for stating something I didn't is ludicrous. No where did I refute any of the previous analysis given by others that show the forced mates. But those forced mates do not materialize until after White's Rf2.


Posted by tugger
play-chess-online.com

9/12/2008
08:20:12

play online chess


Message:
i'm not intending to antagonise anyone, but this comment...

"Aixrad, you did well to accept a draw in this position."

is what i consider ludicrous. it's my opinion that aixrad should be disappointed, not pleased. i don't mean to pan him down, it's intended as constructive critisism. one should never be pleased about missing an easy win. aixrad should be looking to improve his game to the point where he can spot mate in one positions, and that means he should be disappointed when he misses them. this will hopefully drive him forward, trying to ensure he does not feel this disappointment again.

i do know what lighttotheright is saying, though. in the position at the very top of this thread, aixrad is worse off positionally and materially. so i understand why he is saying a draw was not bad.

perhaps a better way of approaching this problem is to directly answer the questions aixrad asks...

"Is this a forced checkmate position?" - Not in this position.

"Was it right to save the draw with threefold repetition?" - No, you should've waited to see what White's reply to Re2 was, then analysed the position, instead of putting up conditional moves. Perhaps then you might have found the win.


Posted by lighttotheright
play-chess-online.com

9/12/2008
11:15:05

play online chess


Message:
I've explained the comment extensively. I'm not going to argue about it. It is not worth it.

But I would like to point out that aizrad is only a 1300 level player. We shouldn't expect a 1600 to 1700 level or greater performance out of him.

Is a draw the best result? Of course not. But don't forget that a draw is still a good result regardless. Certainly, it is a lot better than a loss.



Posted by tugger
play-chess-online.com

9/13/2008
07:41:06

play online chess


Message:
i kind of want to stop arguing about this too! but i have to put my opinion up about this comment...

"But I would like to point out that aizrad is only a 1300 level player. We shouldn't expect a 1600 to 1700 level or greater performance out of him. "

before i go on, i stress again it's just my opinion, but i really don't think that spotting that mate is 1600+ standard, in fact i would expect a 1300 player to have no trouble winning after Rf2. this is precisely the reason aixrad should be disappointed. if he's not disappointed, then how can he drive himself on to improve? if instead he shrugs his shoulders and says "well, a draw is a good result here", then i don't see him breaking into the 1600+ class. but maybe that's just the way i approach things. i guess he may see things differently. he may be boosted by the fact he didn't lose, and as such have more confidence. but i know i would be disappointed if i missed that.

it's ironic really, as during the threefold repetition, both players took it in turns to blunder away a win!





Chess news:

Chess notes -- The chess news from Moscow simply inundated the world this month; first as former world chess champion Vladimir Kramnik of Russia demonstrated that he is still a strong contender for that title. He won the Tal Memorial, held in Moscow in early November in a star-studded field of 10 of the world’s highest rated chess grandmasters. Since Kramnik lost his unified world title in 2007 to Viswanathan Anand, there have been questions about what the future held for him but he has certainly reasserted himself this year. Besides capturing the Tal Memorial, he also buttoned up his ninth title in the Dortmund, Germany, chess tournament. In the Tal tourney, Kramnik scored 6 points, heading ...

World Chess Cup Offers an Opening for Players With Ambitions -- The top 30 chess players in the world can earn good livings. But it is considerably more difficult for the players ranked just below them. Their appearance fees are lower, and they rarely are invited to the chess tournaments that offer the best prize money. For these players, the World Chess Cup now being held in Khanty Mansiysk, Russia, is a great opportunity. With a field of 128 and prize money totaling $1.6 million — with $120,000 going to the winner — the tournament is giving some second-tier players a chance to compete against the chess elite, and perhaps to join them. The winner also will be seeded into the candidates’ matches for the world chess ...

World Chess Cup Is Down to Great Eight -- The World Chess Cup, an important part of the system to select a challenger for the world chess championship, moved into the fifth round Wednesday as the field was reduced to 8. Upsets marked some of the earlier matches, but form held in the fourth round, as the final underdogs were dismissed. The remaining ches players are Boris Gelfand of Israel, the No. 1 seed and the oldest remaining player at 41; Vugar Gashimov of Azerbaijan, No. 2; Peter Svidler of Russia, No. 3; Ruslan Ponomariov of Ukraine, No. 7; Dmitry Jakovenko of Russia, No. 9; Sergey Karjakin of Ukraine, No. 12, (at 19, the youngest remaining player); Shakhriyar Mamedyarov of Azerbaijan, ...