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Othello» Forums » Strategy

Subject: Othello puzzle rss

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Ralf Gering
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White to move and to find the perfect endgame! [10 plies]
 
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Ralf Gering
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SOLUTION
Spoiler (click to reveal)


1. F8 H8
2. H7 B2
3. A1 B1
4. A2 PASS
5. A7 A8

Black = 28 - White = 36

Note: The upper left corner square is A1, the lower right corner square is H8 (standard Othello notation.

 
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Russ Williams
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FiveStars wrote:
Spoiler (click to reveal)
1. A7 F7
I'm not sure what the coordinate system is being used for that to make sense. A-H left to right and 1-8 top to bottom (as in https://en.wikipedia.org/wiki/Reversi ), or bottom to top (as in https://pl.wikipedia.org/wiki/Reversi ), both seem to make those first moves not legal. Or am I totally confused?
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Justin Case
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russ wrote:
FiveStars wrote:
Spoiler (click to reveal)
1. A7 F7
I'm not sure what the coordinate system is being used for that to make sense. A-H left to right and 1-8 top to bottom (as in https://en.wikipedia.org/wiki/Reversi ), or bottom to top (as in https://pl.wikipedia.org/wiki/Reversi ), both seem to make those first moves not legal. Or am I totally confused?
By my reckoning, White's first move is legal, but Black's first move is not....

I use 1-8 from top to bottom even though I don't like it, it's the only "accepted" notation I've seen in my literature here.

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Ralf Gering
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Had to replace the puzzle by another one. Original source was flawed.
 
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