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Chess World Online Chess Forum - Three Compositions From Winning Chess Endings By Yasser Seirawan By Barbier, Lucena and Philidor

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  Play ... Latest Forum Posts > Chess Forums > Chess compositions
  Three Compositions From Winning Chess Endings By Yasser Seirawan By Barbier, Lucena and Philidor

Douglas894

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Thu Mar 30 2006 6:28PM | MsgID: 3923299


Thats a good point. Should I post them again in noninteractive form?



papadoble

Chess rating: 2442



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Thu Mar 30 2006 9:47AM | edited: 10:04:21 | MsgID: 3920345


Originally posted by: "Douglas894"


White to play and win.




Recently, I have come to the conclusion that interactive puzzles are not the best way to present most positions for two reasons:
1. They do not encourage discussion
2. They do not really allow for multiple solutions

In your diagram (I do not think this is the genuine 'Lucena' btw), any first move that does not drop the rook still wins. You can play in particular the plan Rb1-Rb8-Rc8-Kc7 without even trying to build a Lucena bridge, yet this very effective winning line will be rejected by the puzzle...

http://www.shredderchess.com/online-chess/online-databases/endgame-database.html this seems to be the only tablebase site that is working right now.

Edit: I hope you do not interpret these comments as negative, I am only willing to discuss and think about chess, on the contrary please post more positions!




Douglas894

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Thu Mar 30 2006 12:53AM | MsgID: 3918777


I FORGOT TO LEAVE THE INSTRUCTIONS IN MY LAST EDIT, HERE THEY ARE:


Originally posted by: "Douglas894"

White to play and win.
Say thank you to Saavedra, he pointed White's win out.



White to play and win.




Black to play and draw.



Douglas894

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Wed Mar 29 2006 10:40PM | MsgID: 3917929


Really? I dont recall that from the terms and conditions...



papadoble

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Wed Mar 29 2006 7:56PM | edited: 8:35:36 | MsgID: 3916777


Hehehe, well done!!
Do not be surprised if you are flamed by our webmestre when he wakes up, because, you see, posting interactive puzzles on this site is some kind of a privilege...
But how did you edit your first post??
Edit: I thought you could edit only for 15 minutes or so, must be a longer period of time



Douglas894

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Wed Mar 29 2006 7:38PM | MsgID: 3916669


Ok ive gotten them interactive... gosh it was hard though. Kingcrusher wasnt online so I did it through quoting other puzzle posts... figuring out how to do it with black to move was REALLY tough.



papadoble

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Wed Mar 29 2006 5:38PM | edited: 8:32:57 | MsgID: 3915686


Originally posted by: "Douglas894"
I actually did know the history of the composition but since Barbier was in fact the one to first imagine the position, regardless of his knowledge of the solution he was it seems the composer.
The solutions next to the positions was temporary; I want to make the puzzles interactive when I find out how...?




I would say it was at least joint work!
About interactive puzzles, ask kingscrusher.



Douglas894

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Wed Mar 29 2006 5:29PM | MsgID: 3915627


I actually did know the history of the composition but since Barbier was in fact the one to first imagine the position, regardless of his knowledge of the solution he was it seems the composer.
The solutions next to the positions was temporary; I want to make the puzzles interactive when I find out how...?



papadoble

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Wed Mar 29 2006 5:26PM | MsgID: 3915602


Originally posted by: "Douglas894"








Analyse position



White to play and win.




This is of course the famous Saavedra position!

If I understand correctly, Barbier was the chess columnist who published the position in 1895, based on an actual game, first with the correct stipulation but a wrong solution, then with the wrong stipulation, and finally with correct stipulation and solution thanks to an obscure reader named Saavedra.
(see Tim Krabbé relation http://www.xs4all.nl/~timkr/chess/saavedra.htm)

Fine positions, thanks , but please do not post solutions next to the diagrams on first appearance!!



Douglas894

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Wed Mar 29 2006 4:10PM | edited: 7:43:14 | MsgID: 3915120



Say thank you to Saavedra, he pointed White's win out.