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Puzzle 10/02/03 (A)

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daj95376

Joined: 23 Aug 2008
Posts: 3854

Posted: Wed Feb 03, 2010 5:13 pm Post subject: Puzzle 10/02/03 (A)

Code:

+-----------------------+
| . 4 . | 7 5 . | 9 2 . |
| 1 5 . | . . . | 8 . . |
| . . . | 8 6 . | . . . |
|-------+-------+-------|
| 5 . 4 | . 1 . | 2 . . |
| 6 . 3 | 2 . 9 | . 1 . |
| . . . | . 4 . | . . . |
|-------+-------+-------|
| 9 8 . | 5 . . | . . . |
| 4 . . | . 9 . | . 3 . |
| . . . | . . . | . . 5 |
+-----------------------+

Play this puzzle online at the Daily Sudoku site

tlanglet

Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

Posted: Thu Feb 04, 2010 1:07 am Post subject:

An interesting three-stepper.

Quote:

xy-wing -238 with vertex in r1c1,
flightless xy-wing 3-68 again with the vertex in r1c1 and pseudocell 36 in r38c2 with transport,
BUG+2: (7)r2c3 - BUG+2[(7)r9c3 = (2)r9c2]r9c23 - (2=3)r3c2 - (3=7)r3c1; r2c3<>7.

Ted

Marty R.

Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

Posted: Thu Feb 04, 2010 1:59 am Post subject:

Four-stepper for me. XYZ (127) XY (382) Kite (2) W (36) connected by three strong links

arkietech

Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

Posted: Thu Feb 04, 2010 2:31 am Post subject:

I used two steps:

Code:

xy-wing 627 (vertex r6c1) set up this
*-----------------------------------------------------------*
| 9 8 2 | 346 1 46 | 345 345 7 |
| 7 6 1 | 34 5 2 | 349 8 39 |
| 4 3 5 | 9 8 7 | 1 2 6 |
|-------------------+-------------------+-------------------|
| 26 7 8 | 1 246 *45 | 239-5 36-5 239-5 |
| 1 9 3 | 27-5 26 8 |*25 567 4 |
| 26 5 4 | 27 9 3 | 8 67 1 |
|-------------------+-------------------+-------------------|
| 358 2 7 | 458 34 1 | 6 9 35 |
| 358 4 6 | 258 23 9 | 7 1 235 |
| 35 1 9 |b256 7 a56 |c2345 345 8 |
*-----------------------------------------------------------*
(5)r4c6 = (5-6)r9c6 = (6-2)r9c4 = (2)r9c7 - (2=5)r5c7
=> r4c789 <>5 r5c4<>5

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