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daj95376
Joined: 23 Aug 2008 Posts: 3854
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Posted: Tue Sep 14, 2010 6:18 am Post subject: Puzzle 10/09/14: Extreme |
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Enjoy.
Code: | +-----------------------+
| 4 . 1 | . 8 . | . . . |
| . . . | 6 . 3 | . . 8 |
| . . . | . . . | 7 9 . |
|-------+-------+-------|
| . 6 . | . 3 9 | . . . |
| 3 . . | 2 . . | . . . |
| . 7 . | 1 . . | 5 . . |
|-------+-------+-------|
| . . 6 | . . . | 9 . 2 |
| . . 8 | . . 6 | . 4 . |
| . 2 . | . . . | 8 . 6 |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site |
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storm_norm
Joined: 18 Oct 2007 Posts: 1741
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Posted: Tue Sep 14, 2010 9:14 am Post subject: |
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Code: | +----------------------+----------------------+------------------------+
| 4 359 1 | 579 8 57(2) | (236) 5(236) 5(3) |
| 2579 59 2579 | 6 1459 3 | 124 125 8 |
| 6 8 5(23) | 45 145 145(2) | 7 9 145(3) |
+----------------------+----------------------+------------------------+
| 1258 6 245 | 4578 3 9 | 124 1278 147 |
| 3 1459 459 | 2 4567 4578 | 146 1678 1479 |
| 289 7 249 | 1 46 48 | 5 268(3) 49(3) |
+----------------------+----------------------+------------------------+
| 157 1345 6 | 34578 1457 14578 | 9 157(3) 2 |
| 1579 159-3 8 | 3579 2 6 | 1(3) 4 157(3) |
| 1579 2 4579(3) | 34579 14579 1457 | 8 157(-3) 6 |
+----------------------+----------------------+------------------------+ |
#1... (3)r8c79 = (3)r79c8 - (3)r13c9 = (36-2)r1c78 = (2)r1c6 = (2)r3c6 - (2-3)r3c3 = (3)r9c3; r8c2 <> 3 and r9c8 <> 3
after posting this, I see that this move isn't needed either.
#2... skyscraper 3; r7c8 <> 3 (not needed)
#3... ER 1; r5c8 <> 1 (not needed)
to here...
Code: | +------------------+---------------------+-------------------+
| 4 (359) 1 | 579 8 257 | 26(3) 2356 35 |
| 259 (59) 7 | 6 1459 3 | 124 125 8 |
| 6 8 235 | 45 145 1245 | 7 9 1345 |
+------------------+---------------------+-------------------+
| 1258 6 245 | 4578 3 9 | 124 1278 147 |
| 3 145 459 | 2 4567 4578 | 146 678 1479 |
| 28 7 249 | 1 46 48 | 5 2368 349 |
+------------------+---------------------+-------------------+
| 157 34 6 | 34578 1457 14578 | 9 157 2 |
| 1579 (159) 8 | 579 2 6 | -1(3) 4 1357 |
| 1579 2 34 | 34579 14579 1457 | 8 157 6 |
+------------------+---------------------+-------------------+ |
#4...ALS[(1)r8c2 = (3)r1c2]r128c2 - (3)r1c7 = (3)r8c7; r8c7 <> 1 (not needed)
Code: | +---------------------+----------------------+-----------------+
| 4 5(39) 1 | 5(79) 8 5(27) | 26 2356 35 |
| 259 59 7 | 6 1459 3 | 124 125 8 |
| 6 8 5-2(3) | 45 145 145(2) | 7 9 1345 |
+---------------------+----------------------+-----------------+
| 1258 6 245 | 4578 3 9 | 124 1278 147 |
| 3 145 459 | 2 4567 4578 | 146 678 1479 |
| 28 7 249 | 1 46 48 | 5 2368 349 |
+---------------------+----------------------+-----------------+
| 157 34 6 | 34578 1457 14578 | 9 157 2 |
| 1579 159 8 | 579 2 6 | 3 4 157 |
| 1579 2 34 | 34579 14579 1457 | 8 157 6 |
+---------------------+----------------------+-----------------+ |
#5...(2)r3c6 = (2-7)r1c6 = (7)r1c4 - (9-3)r1c2 = (3)r3c3; r3c3 <> 2 (this should be the first move)
Code: | .---------------------.---------------------.---------------------.
| 4 359 1 | 579 8 57 | 26 26 35 |
| 2 59 7 | 6 1459 3 | 14 15 8 |
| 6 8 35 | 45 145 2 | 7 9 1345 |
:---------------------+---------------------+---------------------:
| 15 6 45 | 578 3 9 | 124 28 147 |
| 3 145 9 | 2 57 578 | 146 68 147 |
| 8 7 2 | 1 6 4 | 5 3 9 |
:---------------------+---------------------+---------------------:
| 157 34 6 | 34578 457 1578 | 9 157 2 |
| 79 15 8 | 79 2 6 | 3 4 15 |
| 1579 2 34 | 34579 4579 157 | 8 157 6 |
'---------------------'---------------------'---------------------' |
#6... xy-wing {3,4,5}; r9c4 <> 4 (should be move #2)
#7... ER 1; r4c9 <> 1 (not needed)
#8... ER 5; r2c2 <>5 (should be move #3) |
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peterj
Joined: 26 Mar 2010 Posts: 974 Location: London, UK
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Posted: Tue Sep 14, 2010 2:50 pm Post subject: |
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A slightly different step to norm's but the same outcome..
Code: | ANT(356)[(2)r1c78=(356)r1c789] - (3)r1c2=(3-2)r3c3=(2)r2c13 ; r2c78<>2
*-----------------------------------------------------------------------*
| 4 59(3) 1 | 579 8 257 | (362) (3562) (35) |
| 579(2) 59 579(2) | 6 1459 3 | 14-2 15-2 8 |
| 6 8 5(32) | 45 145 1245 | 7 9 1345 |
|----------------------+----------------------+-------------------------|
| 1258 6 245 | 4578 3 9 | 124 1278 147 |
| 3 1459 459 | 2 4567 4578 | 146 1678 1479 |
| 289 7 249 | 1 46 48 | 5 2368 349 |
|----------------------+----------------------+-------------------------|
| 157 1345 6 | 34578 1457 14578 | 9 1357 2 |
| 1579 1359 8 | 3579 2 6 | 13 4 1357 |
| 1579 2 34579 | 34579 14579 1457 | 8 1357 6 |
*-----------------------------------------------------------------------* |
Then xy-wing and ER(5) |
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tlanglet
Joined: 17 Oct 2007 Posts: 2468 Location: Northern California Foothills
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Posted: Tue Sep 14, 2010 3:32 pm Post subject: |
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Another sequence using Band#1.
ANP(35)r13c9=NT(145)r3c459-(145=2)r3c6-(2)r1c6=(26-35)AHP:r1c678; r1c78<>35
AHT(145=9)r2c5|r3c45-(9=3)als:r12c2-(3=5)r1c9; r1c46<>5
Flightless xy-wing 34-5 plus transport: (5=3)r1c2-(3=4)r7c2-(4=5)r7c5-r23c5=(5)r3c4; r3c3<>5=3
Ted |
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JC Van Hay
Joined: 13 Jun 2010 Posts: 494 Location: Charleroi, Belgium
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Posted: Wed Sep 15, 2010 12:49 am Post subject: |
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Quote: | 4-SIS AIC : 2R3 3B1 9R1 7R1 : (2)r3c6=(7àr1c6 : => r1c6<>2
3-SIS AIC : XY Wing Style : Remote Pair (15) : (51)R2C8 1B9 (15)R8C2 : => r2c2<>5
4-SIS AIC : X Chain (4)R2B64R9 : (4)r2c5=(4)r9c4 : => r3c4<>4 |
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daj95376
Joined: 23 Aug 2008 Posts: 3854
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Posted: Wed Sep 15, 2010 1:44 am Post subject: |
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An early 4-SIS on four values, numerous basics, and several steps (extraneous turbot-class not listed).
Code: | +-----------------------------------------------------------------------+
| 4 359 1 | 579 8 257 | 236 2356 35 |
| 2579 59 2579 | 6 1459 3 | 124 125 8 |
| 6 8 235 | 45 145 1245 | 7 9 1345 |
|-----------------------+-----------------------+-----------------------|
| 1258 6 245 | 4578 3 9 | 124 1278 147 |
| 3 1459 459 | 2 4567 4578 | 146 1678 1479 |
| 289 7 249 | 1 46 48 | 5 2368 349 |
|-----------------------+-----------------------+-----------------------|
| 157 1345 6 | 34578 1457 14578 | 9 1357 2 |
| 1579 1359 8 | 3579 2 6 | 13 4 1357 |
| 1579 2 34579 | 34579 14579 1457 | 8 1357 6 |
+-----------------------------------------------------------------------+
# 135 eliminations remain
(2)r3c6 = (2-3)r3c3 = (3-9)r1c2 = (9-7)r1c4 = (7)r1c6 => r1c6<>2 -equivalent-
(2)r3c6 = (2-7)r1c6 = (7-9)r1c4 = (9-3)r1c2 = (3)r3c3 => r3c3<>2
r8 b3 Empty Rectangle <> 5 r2c2
r18 X-Wing <> 5 r5c2,r3c9
r58 X-Wing <> 1 r3c9
BUG+1 = 4 r7c4
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