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keith
Joined: 19 Sep 2005 Posts: 3355 Location: near Detroit, Michigan, USA
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Posted: Sat Feb 12, 2011 4:01 pm Post subject: A fun multi-stepper |
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Enjoy. Code: | Puzzle: BB021111sh
+-------+-------+-------+
| . . 7 | 3 . 1 | 4 . . |
| . . . | . 5 . | . . . |
| 4 . . | 7 . 9 | . . 6 |
+-------+-------+-------+
| 2 . 4 | . . . | 5 . 3 |
| . 1 . | . . . | . 6 . |
| 3 . 6 | . . . | 9 . 8 |
+-------+-------+-------+
| 7 . . | 5 . 6 | . . 4 |
| . . . | . 2 . | . . . |
| . . 2 | 1 . 4 | 3 . . |
+-------+-------+-------+ | Keith |
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Marty R.
Joined: 12 Feb 2006 Posts: 5770 Location: Rochester, NY, USA
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Posted: Sat Feb 12, 2011 5:49 pm Post subject: |
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I'm sure I took the title, "A fun multi-stepper", a little too seriously, as I played seven ordinary moves before the grid was reduced to a BUG+1. |
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storm_norm
Joined: 18 Oct 2007 Posts: 1741
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Posted: Sun Feb 13, 2011 10:26 am Post subject: |
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Code: | +------------------+------------+-------------------+
| 589 (25) 7 | 3 6 1 | 4 589-2 59-2 |
| 1689 36 189 | 4 5 2 | 178 3789 179 |
| 4 35-2 (15) | 7 8 9 | (12) 235 6 |
+------------------+------------+-------------------+
| 2 89 4 | 6 79 78 | 5 1 3 |
| 589 1 589 | 89 4 3 | 27 6 27 |
| 3 7 6 | 2 1 5 | 9 4 8 |
+------------------+------------+-------------------+
| 7 89 189 | 5 3 6 | 128 289 4 |
| 159 4 3 | 89 2 78 | 6 579 1579 |
| 5689 56 2 | 1 79 4 | 3 5789 579 |
+------------------+------------+-------------------+ |
#1...xy-wing {125} r1c89 <> 2
Code: | +---------------------+------------+------------------+
| 589 2 7 | 3 6 1 | 4 589 59 |
| 689(1) 36 189 | 4 5 2 | (18) 3789 179 |
| 4 35 15 | 7 8 9 | 12 235 6 |
+---------------------+------------+------------------+
| 2 89 4 | 6 79 78 | 5 1 3 |
| 589 1 589 | 89 4 3 | 7 6 2 |
| 3 7 6 | 2 1 5 | 9 4 8 |
+---------------------+------------+------------------+
| 7 (89) (189) | 5 3 6 | 12-8 289 4 |
| 59(1) 4 3 | 89 2 78 | 6 579 1579 |
| 5689 56 2 | 1 79 4 | 3 5789 579 |
+---------------------+------------+------------------+ |
als version of the w-wing
#2...(89)r7c23 = (1)r7c3 - (1)r8c1 = (1)r2c1 - (1=8)r2c7; r7c7 <> 8
Code: | +--------------------+--------------+----------------+
| 8 2 7 | 3 6 1 | 4 59 59 |
| 69-1 36 19 | 4 5 2 | 8 37 (17) |
| 4 35 15 | 7 8 9 | 12 23 6 |
+--------------------+--------------+----------------+
| 2 (89) 4 | 6 (79) 78 | 5 1 3 |
| 59 1 589 | 89 4 3 | 7 6 2 |
| 3 7 6 | 2 1 5 | 9 4 8 |
+--------------------+--------------+----------------+
| 7 9(8) 9(18) | 5 3 6 | 12 29 4 |
| 59(1) 4 3 | 89 2 78 | 6 579 579-1 |
| 569 56 2 | 1 9(7) 4 | 3 8 59(7) |
+--------------------+--------------+----------------+ |
#3...(1=7)r2c9 - (7)r9c9 = (7)r9c5 - (7=9)r4c5 - (9=8)r4c2 - (8)r7c2 = (8-1)r7c3 = (1)r8c1; r2c1 and r8c9 <> 1 |
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tlanglet
Joined: 17 Oct 2007 Posts: 2468 Location: Northern California Foothills
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Posted: Sun Feb 13, 2011 4:29 pm Post subject: |
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I also started with the xy-wing 1-25 vertex (15)r3c3; r1c89,r3c2<>2
which brings the code to:
Code: | *-----------------------------------------------------------*
| 589 2 7 | 3 6 1 | 4 59(8) 59 |
| 1689 36 189 | 4 5 2 | 18 3789 179 |
| 4 35 15 | 7 8 9 | 12 235 6 |
|-------------------+-------------------+-------------------|
| 2 89 4 | 6 79 78 | 5 1 3 |
| 589 1 589 | 89 4 3 | 7 6 2 |
| 3 7 6 | 2 1 5 | 9 4 8 |
|-------------------+-------------------+-------------------|
| 7 89 189 | 5 3 6 | 128 289 4 |
| 159 4 3 | 89 2 78 | 6 579 1579 |
| 5689 56 2 | 1 79 4 | 3 5789 579 |
*-----------------------------------------------------------*
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where a ANP makes a deletion and also results in a conflict.
ANP(59=8)r1c89-r79c8=r7c7-als(89=1)r7c23-als(1=5=1)r3c3*7-(1=8)r2c7 conflict; r1c1*<>5, r1c8<>8
Code: | *-----------------------------------------------------------*
| 8 2 7 | 3 6 1 | 4 59 59 |
| 169 36 19 | 4 5 2 | 8 37 17 |
| 4 35 15 | 7 8 9 | 12 23 6 |
|-------------------+-------------------+-------------------|
| 2 89 4 | 6 79 78 | 5 1 3 |
| 59 1 589 | 89 4 3 | 7 6 2 |
| 3 7 6 | 2 1 5 | 9 4 8 |
|-------------------+-------------------+-------------------|
| 7 89 189 | 5 3 6 | 12 29 4 |
| 159 4 3 | 89 2 78 | 6 59(7) 1579 |
| 569 56 2 | 1 79 4 | 3 8 579 |
*-----------------------------------------------------------* |
Another ANP completes the puzzle
ANP(59=7)r18c8)-(7=8)r8c6-r4c6=r4c2-(8=9)r7c2; r7c8<>9
Ted |
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