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10-07-2009 , 11:24 AM
#1
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I stumbled upon the following endgame yesterday. It is not too easy, but very thematic.



Below, I give three hints. They are cumulative, so do not look at hint no. 2 unless you can answer hint no. 1.

Spoiler:
Hint 1:
Spoiler:
Calculate if the direct approach works.


Hint 2:
Spoiler:
What would White do if it were his move?


Hint 3:
Spoiler:
Can you achieve this position with White to move? Which squares correspond?
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10-07-2009 , 12:06 PM
#2
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Is it Black to move?
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10-07-2009 , 12:18 PM
#3
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Quote:
Originally Posted by Dynasty
Is it Black to move?
I believe that's what the black dot in the corner means
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10-07-2009 , 01:05 PM
#4
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Yes. Black dot means Black to move. That's also why I have flipped the board.
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10-07-2009 , 03:23 PM
#5
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Spoiler:

1... b3 2. Kc3 (2. e5 fxe5 3. f6 (3. Kc3 Kd5 4. Kxb3 e4 5. Kc3 Ke5-+) 3... Kd6 4.
Kc3 Ke6 5. Kxb3 Kxf6-+) 2... b2 3. Kxb2 Kd4 4. Kb3 Kxe4 5. Kc4 Kxf5 6. Kb5 Kg4 7.
Kxa5 f5 8. Kb6 f4 9. a5 f3 10. a6 f2 11. a7 f1=Q 12. a8=Q *


My guess. I'm not sure if the final position can be won.

edit:
Spoiler:
I suck. My final position is definitely drawn. The hints would have shown me that I was wrong before I posted
Last edited by swingdoc; 10-07-2009 at 03:43 PM. Reason: Terrible at chess
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10-07-2009 , 03:28 PM
#6
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Spoiler:
triangulate
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10-07-2009 , 03:49 PM
#7
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Spoiler:
Corresponding squares: d3-c5, c4/d4-c6/d6, c7/d7-d3 oh no!


Spoiler:
1... Kc6 2. Kc4 Kc7 3. Kd3 Kd7 4. Ke2 (4. Kc4 Kc6) (4. Kd4 Kd6 5. e5+ fxe5+ 6.
Ke4 b3) 4... Kc6 5. Kd3 Kc5 6. Ke3 (6. Kd2 Kd4) 6... b3 (6... Kc4? 7. e5 fxe5
8. f6 b3 9. f7 b2 ) 7. Kd3 (7. e5 fxe5 8. f6 Kd6 9. Kd3 e4+) 7... b2 8. Kc2 Kd4 9. Kxb2 Kxe4 10. Kb3 Kxf5 11. Kc4 Kg4 12. Kb5 f5 13. Kxa5 f4 14. Kb6 f3 15. a5 f2 16. a6 f1=Q 17. a7 Qa1 -+
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10-07-2009 , 05:48 PM
#8
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Yes, that is it...

Spoiler:
...except that in your winning line, 7... Kb4 with Ka3 etc. is a lot quicker, though of course 7... b2 wins easily too.
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10-07-2009 , 06:00 PM
#9
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Quote:
Originally Posted by Ajezz
Yes, that is it...

Spoiler:
...except that in your winning line, 7... Kb4 with Ka3 etc. is a lot quicker, though of course 7... b2 wins easily too.
Yeah, I looked up the game after my last post. Awfully pretty and instructive win.
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