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Underpromotions?

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29th August 2008, 08:22am
#1
by Nilesh021
Philadelphia, PA United States
Member Since: Aug 2007
Member Points: 495

Does anyone have a situation where underpromotion of pawns is better than the queen? I know default for blitz is the queen but when is it not good?

29th August 2008, 08:29am
#2
by orejano
Concepcion del Uruguay Argentina
Member Since: Oct 2007
Member Points: 673

This is an example:

29th August 2008, 08:58am
#3
by uritbon
tel aviv Israel
Member Since: Apr 2008
Member Points: 1007

d

29th August 2008, 09:18am
#4
by SpookyRooky
Dallas United States
Member Since: Jun 2008
Member Points: 48

Underpromotion (though rare) does happen OTB (not just in puzzles).

Here is an example of this in real life:

http://www.chessgames.com/perl/chessgame?gid=1398984

 

enjoy!

29th August 2008, 10:03am
#5
by Nilesh021
Philadelphia, PA United States
Member Since: Aug 2007
Member Points: 495

Thanks!

29th August 2008, 10:35am
#6
by Olimar
United States
Member Since: Jun 2008
Member Points: 525

wow nice game

29th August 2008, 01:03pm
#7
by Graw81
Ireland
Member Since: Dec 2007
Member Points: 1066

See move list.

29th August 2008, 10:45pm
#8
by srn347
California United States
Member Since: Jul 2008
Member Points: 268

Promotion to a bishop or knight wins.

Promotion to a rook wins.

30th August 2008, 06:04am
#9
by Graw81
Ireland
Member Since: Dec 2007
Member Points: 1066

They are interesting positions srn347.

Inn the first position White should NOT simply promote the pawn to a queen. The position of Blacks king in the cornor does him favours! He is not mated in a few moves. 1.c8(Q) (threatens mate on a6) Ra4 or Rd6 (prevents mate on a6) {But Rc4+!=} 2.Qc3+ followed by Qb2#.

30th August 2008, 06:33am
#10
by gr842day
Canada
Member Since: Aug 2008
Member Points: 2

Graw81 - in srn347's first example, if the pawn promotes to a Queen, black plays Rc4 and the only options for white are Qxc4, which is a stalemate, and moving the King, which loses the Queen and the game.  The promotion must be to a Rook in order for white to win

30th August 2008, 06:36am
#11
by Grayhound
Johannesburg South Africa
Member Since: Mar 2008
Member Points: 133

I still love this one.

Occasionally if my opponent is losing really badly, I like to give him a chance if I like him.

If I don't like him then I add insult to injury and promote to a pathetic piece and still beat him

30th August 2008, 06:50am
#12
by Graw81
Ireland
Member Since: Dec 2007
Member Points: 1066

gr842day wrote:

Graw81 - in srn347's first example, if the pawn promotes to a Queen, black plays Rc4 and the only options for white are Qxc4, which is a stalemate, and moving the King, which loses the Queen and the game.  The promotion must be to a Rook in order for white to win


Ah i overlooked that. Thanks for letting me know. :)

 

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