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Set XY_03 Puzzle 027

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Mon Jul 20, 2009 5:10 pm    Post subject: Set XY_03 Puzzle 027 Reply with quote
Are you tired of easy Monday newspaper puzzles. Solve this one w/o using a chain -- including XY-Chains and extended XY-Wings.

Code:
 +-----------------------+
 | 4 . 8 | . . 6 | . . 9 |
 | . . 7 | . . . | . . . |
 | 1 9 . | 7 . . | 8 6 4 |
 |-------+-------+-------|
 | . . 3 | 6 7 . | . 5 . |
 | . . . | 5 . . | . 8 . |
 | 6 . . | . . . | 7 . . |
 |-------+-------+-------|
 | . . 9 | . . 8 | 4 . . |
 | . . 1 | 9 5 . | . . . |
 | 5 . 6 | . . . | . . . |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site

Hint wrote:
There aren't any 2s in the givens, and only two 1s in the givens.
But they can't be used together w/o several earlier eliminations.
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Tue Jul 21, 2009 2:53 pm    Post subject: Reply with quote
I think I satisfied the givens and completed the puzzle with five moves.
Quote:
skyscraper 2 in r68c6,
hidden UR 27 in r57c12,
xyz-wing 127 in r9c6,
skyscraper 2 r59c7,
BUG+1 sets r4c7=1

A very fun puzzle. Thanks again Danny

Ted
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Tue Jul 21, 2009 3:13 pm    Post subject: Reply with quote
Congratulations Ted !!!

By finding your second step at the same time (or before) your first step, you managed to circumvent the ugly ending that I encountered.
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