Patterns Game 0285 - [edit:] 6.7 (joel64)

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Patterns Game 0285 - [edit:] 6.7 (joel64)

Code: Select all
` +-------+-------+-------+ | . . 1 | 2 . . | . . 3 | | . . . | . . 4 | 2 . . | | 5 . . | . . . | . 6 . | +-------+-------+-------+ | 7 . . | 6 . . | . 1 . | | . . . | . 3 . | . . . | | . 8 . | . . 9 | . . 4 | +-------+-------+-------+ | . 3 . | . . . | . . 6 | | . . 7 | 1 . . | . 2 . | | 4 . . | . . 7 | 5 . . | +-------+-------+-------+`
Last edited by eleven on Sun Jul 30, 2017 3:37 pm, edited 1 time in total.
eleven

Posts: 1481
Joined: 10 February 2008

Re: Patterns Game 0285 - 6.5 (joel64)

Classical swordfish when the 3 solved cells for a digit are on a principal or secondary diagonal : {1R267} or {1C237} -> r7c7=1; stte
JC Van Hay

Posts: 662
Joined: 22 May 2010

Re: Patterns Game 0285 - 6.5 (joel64)

Oops, i did not spot that one. Well hidden.
eleven

Posts: 1481
Joined: 10 February 2008

Re: Patterns Game 0285 - 6.5 (joel64)

Code: Select all
` 689     4679    1      | 2      56789  568    | 4789   45789  3       3689    679     3689   | 35789 b156789 4      | 2      5789  a15789   5       2479    23489  | 3789   1789  c138    | 14789  6      1789   ------------------------+----------------------+--------------------- 7       2459    23459  | 6      2458   258    | 389    1      2589    1269   e124569  24569  | 4578   3     d1258   | 6789   5789   25789   1236    8       2356   | 57     1257   9      | 367    357    4      ------------------------+----------------------+--------------------- 1289    3       2589   | 4589   24589  258    | 14789  4789   6       689     569     7      | 1      45689  3568   | 3489   2      89      4      f1269    2689   | 389    2689   7      | 5      389    89-1    `

More than one x-cycle of 1's here:
(1)r2c9 = r2c5 - r3c6 = r5c6 - r5c2 = r9c2 => -1, r9c9; stte

Phil
pjb
2014 Supporter

Posts: 1627
Joined: 11 September 2011
Location: Sydney, Australia

re: 285

eleven wrote:
Code: Select all
` +-------+-------+-------+ | . . 1 | 2 . . | . . 3 | | . . . | . . 4 | 2 . . | | 5 . . | . . . | . 6 . | +-------+-------+-------+ | 7 . . | 6 . . | . 1 . | | . . . | . 3 . | . . . | | . 8 . | . . 9 | . . 4 | +-------+-------+-------+ | . 3 . | . . . | . . 6 | | . . 7 | 1 . . | . 2 . | | 4 . . | . . 7 | 5 . . | +-------+-------+-------+`

the puzzle you posted is rated 6.7 ( not 6.5 )
joel64 # 285 # 12
Code: Select all
`..12....3.....42..5......6.7..6...1.....3.....8...9..4.3......6..71...2.4....75..`
( and no SwordFish )

maybe JC Van Hay looked at the 6.5,
that would be
champagne # 285 # 61
Code: Select all
`..12....3.....14..5......6.7..6...8.....9.....4...5..2.1......8..97...5.6....49..`

Pat

Posts: 3340
Joined: 18 July 2005

Re: Patterns Game 0285 - [edit:]6.7 (joel64)

Yes, 6.7, my typo (corrected). The swordfish is finned.
eleven

Posts: 1481
Joined: 10 February 2008

Re: Patterns Game 0285 - [edit:] 6.7 (joel64)

I'm getting confused here. This puzzle (..12....3.....42..5......6.7..6...1.....3.....8...9..4.3......6..71...2.4....75..) has the sashimi swordfish of 1s at r2c59, r6c15, r7c17 => -1 r3c7, r9c9, stte. Alternatively it can be viewed as an x-cycle: (1)r7c7 = r7c1 - r6c1 = r6c5 - r2c5 = r2c9 => -1 r3c7, r9c9. As I posted above, there is a second x-cycle solving the puzzle.

Phil
pjb
2014 Supporter

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Location: Sydney, Australia

re: Patterns Game 0285 - 6.7 (joel64)

pjb wrote:I'm getting confused here. This puzzle
(..12....3.....42..5......6.7..6...1.....3.....8...9..4.3......6..71...2.4....75..)
has the sashimi swordfish of 1s at r2c59, r6c15, r7c17
=> -1 r3c7,
stte

right. the rating 6.7 guarantees that the puzzle can't be solved by an (un-finned) SwordFish (rated 3.8) -- but the finned SwordFish does work.

(1) r267\c157 + fin r2c9
[ OR (1) c269\r359 + fin r2c9 ]
==> exclude 1 at r3c7

Pat

Posts: 3340
Joined: 18 July 2005