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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Sun Jul 25, 2010 3:16 pm Post subject: Puzzle 10/07/25: C |
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| Code: | +-----------------------+
| . 3 5 | 2 . . | 6 8 . |
| 1 . . | 4 5 8 | . . . |
| 4 . 2 | . . . | 5 . . |
|-------+-------+-------|
| 8 2 . | 9 . . | . . . |
| . 9 . | . 4 . | 8 . . |
| . 5 . | . . . | . . 2 |
|-------+-------+-------|
| 2 . 6 | . 9 . | 4 . 8 |
| 5 . . | . . . | . 6 . |
| . . . | . . 4 | 9 . 7 |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Sun Jul 25, 2010 8:53 pm Post subject: |
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| Quote: | Type 1 UR (17)r18c56; r8c5<>17
xy-wing -356 vertex (56)r9c3; r7c4<>3 plus tranport (3)r3c4-r3c5=r46c5; r6c6<>3
BUG+1 forces r6c5=3 |
Ted |
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peterj
Joined: 26 Mar 2010
Posts: 974
Location: London, UK
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| Posted: Mon Jul 26, 2010 2:58 pm Post subject: |
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With all those bivalues .. for fun an 'almost xy-chain' - I was determined to zap that 2!
| Quote: | almost xy-chain fin (7)r4c5
r4c5<>7: (2=3)r2c8 - (3=1)r5c8 - (1=3)r5c3 - (3=1)r4c3 - (1=3)r5c4 - (3=6)r3c5 - (6=2)r9c5 ; r9c8<>2
r4c5=7 : (7)r4c5 - (7=1)r1c5 - (1=7)r1c6 - (7=1)r8c6 - (1=2)r8c7 ; r9c8<>2 |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Tue Jul 27, 2010 12:48 am Post subject: |
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| I played an XY-Wing (563). I didn't play the Type 1 UR (17). That allowed me to look at the implications of the potential 18 DP in boxes 58. All DP killers set r3c45=36. |
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