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JWhis - Del Rio Position - Rook/Pawn vs Bishop [17:00] 
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Post JWhis - Del Rio Position - Rook/Pawn vs Bishop [17:00]
Poster: JWhis
Rating Class: Class B (1600-1800) | Videos Made: 158
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Thu Sep 03, 2009 10:50 am
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Post Re: JWhis - Del Rio Position - Rook/Pawn vs Bishop [17:00]
Yes, please do more endgame videos. I find most endgame videos either too basic or too advanced for my level, that one was just right.


Thu Sep 03, 2009 2:06 pm
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Post Re: JWhis - Del Rio Position - Rook/Pawn vs Bishop [17:00]
Hey JW!

Great video! You obviously know your "stuff"! I really like these kinds of "instructional videos".

I really admire you guys who have the patience and focus to study this stuff. I guess if you are a tournament player with aspirations of becoming a master or expert (or just climb the ranks in your club), you will have the desire and drive to learn these positions. This is why I will never be much of a chess player. I just call myself a "recreational player" (better known as lazy patzer)! But it is still interesting none the less and having a video makes it a lot more palatable then reading a book.

Thanks for sharing your knowledge! I did learn from it! Let's just hope I can remember it if it ever comes up in a game. Since I don't play tourneys, I would probably just resign in such a position, but maybe now I would go for the "Del Rio" draw! ... lol! Why not, a draw is better than a loss in anybody's book!

Thanks again!

KB


Fri Sep 04, 2009 7:12 am
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Post Re: JWhis - Del Rio Position - Rook/Pawn vs Bishop [17:00]
The key with positions like this is not to hope that they come up in a game, but to try to force them if you are on the losing side, imo. I really enjoy working on this aspect of the game. Thanks for watching.


Fri Sep 04, 2009 8:24 am
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Post Re: JWhis - Del Rio Position - Rook/Pawn vs Bishop [17:00]
I did not know that position, thanks!


Fri Sep 04, 2009 12:07 pm
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Post Re: JWhis - Del Rio Position - Rook/Pawn vs Bishop [17:00]
You kept playing the wrong moves for both sides. For example: at 6:48 Black had to play Kf7! to hold the draw, but he played Ba2?? where it cannot check from b1, so White could've won with Rb8+ Kf7 Rb7+ followed by Kg6 and the bishop can't play Bb1+ to check White's king away from g6 since the rook covers b1, so Black loses. But then White did not play the winning variation, so it just kept going back and forth between a draw and a win for White.

Then at the end you claimed that the same formation of pieces is also a draw with a knight-pawn, but the drawing method only works against a bishop-pawn or rook-pawn. A knight-pawn always wins because the pawn is close to the corner that is the same color of the bishop, so after the pawn is pushed to g7 and the defender defends with Kh7, the king is on the edge, then rook can shift from horizontal control of the pawn to vertical control (by attacking the bishop with tempo) and if the bishop ever takes the pawn, then the king will be too close to the wrong corner to hold a draw.
(Also a center-pawn always wins since the bishop won't have enough squares to waste moves on)


Thu Dec 10, 2009 2:12 pm
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Post Re: JWhis - Del Rio Position - Rook/Pawn vs Bishop [17:00]
Thanks for the corrections, byakuugan :)


Thu Dec 10, 2009 10:45 pm
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Post Re: JWhis - Del Rio Position - Rook/Pawn vs Bishop [17:00]
Very interesting, I was vaguely aware of this type of draw but this (and byakuugan's critique) made it more clear.


Fri Dec 11, 2009 6:19 am
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Post Re: JWhis - Del Rio Position - Rook/Pawn vs Bishop [17:00]
in my video: http://www.youtube.com/watch?v=atd3ntUXre8 I explain how to win with a knight-pawn on the 6th rank, and in another video http://www.youtube.com/watch?v=Un2KIWs3MD0 I explain how to win with a rook-pawn that has not reached the 5th rank yet (a rook-pawn on the 5th rank can be a draw).
Soon I will upload another video explaining the winning method against a center-pawn on the 6th rank, but it is very complicated to explain, and has some deep zugswang tactics.


Wed Dec 23, 2009 1:58 pm
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Post Re: JWhis - Del Rio Position - Rook/Pawn vs Bishop [17:00]
Fantastic byakuugan, I will watch those videos. I appreciate you watching mine, I make them more as a way of helping myself remember things, and also trying to solicit feedback from others and start conversation. I admit to being less than a great player, so your comments and corrections are welcome!


Wed Dec 23, 2009 7:51 pm
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