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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Sun Jul 11, 2010 8:50 am Post subject: Puzzle 10/07/11: Night & Day |
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Sometimes, I get frustrated at my puzzle generator because it doesn't seem to generate a noteworty puzzle. After I have gsf's solver remove a few more clues, I realize why my generator stopped removing clues when it did.
| Code: | +-----------------------+
| 7 . 3 | 6 . . | 9 . 4 |
| . . . | . 2 . | 3 . 1 |
| 1 . 5 | 9 . . | . 7 2 |
|-------+-------+-------|
| 5 . 4 | . . . | . . 9 |
| . 6 . | . 5 . | 4 . 7 |
| . . . | . . 6 | . . . |
|-------+-------+-------|
| 4 1 . | . 6 . | 7 9 3 |
| . . 9 | . . . | 5 . . |
| 6 5 7 | 3 4 . | 1 . . |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site
The second puzzle should be more difficult than the first.
| Code: | +-----------------------+
| 7 . 3 | . . . | . . . |
| . . . | . 2 . | . . 1 |
| . . 5 | 9 . . | . 7 2 |
|-------+-------+-------|
| . . 4 | . . . | . . 9 |
| . 6 . | . 5 . | 4 . 7 |
| . . . | . . 6 | . . . |
|-------+-------+-------|
| . 1 . | . 6 . | 7 9 3 |
| . . 9 | . . . | . . . |
| 6 . 7 | 3 4 . | 1 . . |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site
| Code: | after basics
+--------------------------------------------------------------+
| 7 2 3 | 6 1 5 | 9 8 4 |
| 8 9 6 | 7 2 4 | 35 35 1 |
| 1 4 5 | 9 38 38 | 6 7 2 |
|--------------------+--------------------+--------------------|
| 235 358 4 | 128 378 17 | 2358 6 9 |
| 9 6 128 | 28 5 238 | 4 13 7 |
| 235 7 128 | 4 9 6 | 2358 135 58 |
|--------------------+--------------------+--------------------|
| 4 1 28 | 5 6 28 | 7 9 3 |
| 235 358 9 | 128 78 17 | 58 4 6 |
| 6 58 7 | 3 4 9 | 1 2 58 |
+--------------------------------------------------------------+
# 45 eliminations remain
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Sun Jul 11, 2010 6:34 pm Post subject: |
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Danny.Great comparison of puzzles Danny.
Puzzle #1 I solved with the first two step I noticed.
| Quote: | xy-wing -238 with vertex (38)r4c2; r6c7<>2
flightless xy-wing 1-28 with vertex (18)r5c3 plus transport (2)r5c4-r5c6=(2)r7c6; r7c3<>2 |
The second puzzle I used a total different initial move but then the remaining two additional moves used a similar path. However the second puzzle had multiple options using different steps after my initial move.
| Quote: | Kraken cell (238)r5c6
(2)r5c6-(2=8)r5c4; r4c45<>8
(3)r5c6-(3=8)r3c6-r7c6=r7c3-r56c3=(8)r4c2; r4c45<>8
(8)r5c6; r4c45<>8
Almost xy-wing 37-8 with vertex (37)r4c5, pincers (38)r4c2 & (78)r8c5 with fin (5)r4c2
If xy-wing is true: r8c2<>8
If fin is true: (5)r4c2-(5=8)r9c2; r8c2<>8
Almost xy-wing 35-8 with vertex (35)r8c2, pincers (38)r4c2 & (58)r8c7 with fin (5)r4c2
If xy-wing is true: r4c7<>8
If fin is true: (5)r4c2-r9c2=r9c9-(5=8)r8c7; r4c7<>8 |
Ted |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Mon Jul 12, 2010 9:53 pm Post subject: |
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| For the first one, I started with Ted's XY-Wing (382) and then a flightless W-Wing (38) with pincer transport. |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Mon Jul 12, 2010 10:20 pm Post subject: |
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For the second one, I used:
M-Wing (28) + pincer transport
Kite (8)
XY-Wing (382), same numbers and same cells as the first puzzle, or so I think |
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Mogulmeister
Joined: 03 May 2007
Posts: 1151
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| Posted: Mon Jul 12, 2010 11:00 pm Post subject: |
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| Ted, hats off for a serious double almost xy-wing workout. |
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