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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Sun Sep 26, 2010 1:41 am Post subject: Puzzle 10/09/26: A |
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| Code: | +-----------------------+
| 9 . . | 3 6 . | . . . |
| . 8 . | . . . | . 5 . |
| . . 6 | . 4 . | . 9 2 |
|-------+-------+-------|
| 4 . . | 9 . . | . . 3 |
| 8 . 2 | . . . | . . 5 |
| . . . | . . 7 | . 8 . |
|-------+-------+-------|
| . . . | . . . | . 3 . |
| . 6 8 | . . 3 | 5 1 9 |
| . . 9 | 8 7 . | . 2 . |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site |
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peterj
Joined: 26 Mar 2010
Posts: 974
Location: London, UK
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| Posted: Sun Sep 26, 2010 12:31 pm Post subject: |
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Making a mountain out of a mole hill I suspect! But had some fun
| Quote: | xy-chain ; (1=6)r5c4 - (6=2)r4c6 - (2=9)r2c6 - (9=1)r2c5 ; r23c4<>1, r6c5<>1
turbot/ER(5) ; r7c3<>5 |
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JC Van Hay
Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium
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| Posted: Sun Sep 26, 2010 12:46 pm Post subject: |
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| Quote: | Kite (5)R1C1 : r9c6<>5
XY Wing Style, pivot at 6C6 : (2)r6c4=(5)r7c4 : => r6c4<>5
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Mon Sep 27, 2010 1:25 pm Post subject: |
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Another very fun puzzle; I found two effectively identical deletions using different steps plus, extra deletions from a Type 2 UR.
Type 6 UR (19)r56c29; r5c2,r6c7<>9,
or xy-wing -126 vertex (26)r4c6; r5c7<>1
AXY-wing 1-56 vertex (16)r5c4 with pincers (15)r6c5 & (56)r7c4 with fin (1)r7c4: r7c5<>5
or AIC: (5=1)r6c5-(1=6)r5c4-(6=15)als:r7c34; r7c5<>5
Type 2 UR (78)r17c79; r1c36,r2c79,r3c7<>1
Type 2 UR (78)r17c79 external SIS (7)r1c3, (8)r3c7: (7)r1c3-(5)r1c3=r1c6-(5=1)r9c6-r7c5=r2c5-(1=3)r2c1-(3=67)als:r2c79; r3c7<>7
Type 2 UR (78)r17c79 external SIS (8)r1c6, (7)r2c79, (7)r3c7: (8)r1c6-(5)r1c6=r1c3-(5=1)r7c3-r7c5=r2c5-(1=3)r2c1-(3=67)als:r2c79; r1c79<>7
Ted |
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yeoks
Joined: 16 May 2010
Posts: 33
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| Posted: Mon Sep 27, 2010 1:29 pm Post subject: |
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| Quote: |
UR2 (78) ; r23c7 & r2c9<>1
W Wing (15) C36; r7c56<>1
xy wing (16-5) ; r7c5 & r6c4 <>5
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daj95376
Joined: 23 Aug 2008
Posts: 3854
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| Posted: Mon Sep 27, 2010 5:39 pm Post subject: |
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Welcome yeoks! Nice solution.
FYI: your UR Type 2 has two additional eliminations.
| Code: | <78> UR Type 2.2233 r1c36,r2c79,r3c7<>1
+--------------------------------------------------------------+
| 9 2 57-1 | 3 6 58-1 | *78+1 4 *78+1 |
| 13 8 4 | 127 19 29 | 367-1 5 67-1 |
| 135 1357 6 | 157 4 158 | 378-1 9 2 |
|--------------------+--------------------+--------------------|
| 4 157 157 | 9 8 26 | 12 67 3 |
| 8 179 2 | 16 3 4 | 19 67 5 |
| 6 19 3 | 125 15 7 | 1249 8 14 |
|--------------------+--------------------+--------------------|
| 2 4 15 | 156 159 69 | *78 3 *78 |
| 7 6 8 | 4 2 3 | 5 1 9 |
| 135 135 9 | 8 7 15 | 46 2 46 |
+--------------------------------------------------------------+
# 65 eliminations remain
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Regards, Danny |
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yeoks
Joined: 16 May 2010
Posts: 33
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| Posted: Tue Sep 28, 2010 5:30 am Post subject: |
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Thanks Danny
Regards, Yeoks |
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