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Set XY_03 Puzzle 012

dailysudoku.com Forum Index -> Puzzles by daj

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daj95376

Joined: 23 Aug 2008
Posts: 3854

Posted: Wed Jun 03, 2009 5:24 am Post subject: Set XY_03 Puzzle 012

I'm going to take a sabbatical from posting puzzles. (3/5)

Code:

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

Play this puzzle online at the Daily Sudoku site

Code:

b2 Naked Pair <> 59 [r23c6]
c8 Naked Pair <> 59 [r2356c8]
r9 Naked Pair <> 59 [r9c36]
r5 Hidden Pair = 47 [r5c28]
r5 b5 Locked Candidate 1 <> 5 [r5c7]
c3b7 Locked Candidate 1 <> 7 [r6c3]
c5b8 Locked Candidate 2 <> 5 [r78c6]
r7 b7 Locked Candidate 2 <> 5 [r8c3]

c3b6 Empty Rectangle <> 1 [r2c7]

r19\c68 Sashimi X-Wing <> 9 [r78c6]

b3 Naked Triple <> 569 [r2c8],[r3c89]

XY-Wing [r6c3]/[r2c3]+[r6c7] <> 5 [r2c7]

BUG+3
[r3c8]=4 => [r3c2]=1 => [r2c3]=5 => [r7c3]=9 => [r6c3]<>9
[r6c2]=9 => [r6c3]<>9
[r6c2]=9 => [r6c3]<>9
+-----------------------------------------------------+
| 6 8 4 | 1 7 59 | 2 59 3 |
| 7 3 15 | 59 2 46 | 69 14 8 |
| 9 15 2 | 8 3 46 | 56 17+4 47 |
|-----------------+-----------------+-----------------|
| 5 49 6 | 7 1 2 | 3 8 49 |
| 8 47 3 | 59 6 59 | 1 47 2 |
| 2 17+9 1-9 | 4 8 3 | 59 6 57+9 |
|-----------------+-----------------+-----------------|
| 3 59 59 | 6 4 8 | 7 2 1 |
| 4 6 7 | 2 59 1 | 8 3 59 |
| 1 2 8 | 3 59 7 | 4 59 6 |
+-----------------------------------------------------+
# 31 eliminations remain

Last edited by daj95376 on Sat Jun 27, 2009 3:34 pm; edited 1 time in total

storm_norm

Joined: 18 Oct 2007
Posts: 1741

Posted: Thu Jun 04, 2009 9:43 pm Post subject:

Code:

.------------------.------------------.------------------.
| 6 8 4 | 1 7 59 | 2 59 3 |
| 7 3 15 | 59 2 46 | 1569 146 8 |
| 9 15 2 | 8 3 46 | 156 1467 457 |
:------------------+------------------+------------------:
| 5 149 6 | 7 19 2 | 3 8 49 |
| 8 47 3 | 59 6 159 | 19 47 2 |
| 2 179 19 | 4 8 3 | 1569 167 579 |
:------------------+------------------+------------------:
| 3 59 589 | 6 4 89 | 7 2 1 |
| 4 6 79 | 2 159 179 | 8 3 59 |
| 1 2 78 | 3 59 78 | 4 59 6 |
'------------------'------------------'------------------'

remote naked pair {5,9} removes 9 from r78c6

Code:

.---------------.---------------.---------------.
| 6 8 4 | 1 7 59 | 2 59 3 |
| 7 3 *15 | 59 2 46 | 569 *14 8 |
| 9 15 2 | 8 3 46 | 56 147 *47 |
:---------------+---------------+---------------:
| 5 *49 6 | 7 1 2 | 3 8 *49 |
| 8 47 3 | 59 6 59 | 1 47 2 |
| 2 179 *19 | 4 8 3 | 59 6 579 |
:---------------+---------------+---------------:
| 3 59 59 | 6 4 8 | 7 2 1 |
| 4 6 7 | 2 59 1 | 8 3 59 |
| 1 2 8 | 3 59 7 | 4 59 6 |
'---------------'---------------'---------------'

(9=4)r4c2 - (4)r4c9 = (4)r3c9 - (4=1)r2c8 - (1)r2c3 = (1)r6c3; r6c3 <> 9

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