Sudokus with an original rare shape

Everything about Sudoku that doesn't fit in one of the other sections

Re: the squaration of the circle

Postby JPF » Sat Sep 22, 2007 12:26 pm

claudiarabia wrote:The world of fully symmetric puzzles seems to be a village instead.

See this thread for more details:)

Here are the 6 isomorphic patterns :
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 . . . x . x . . .
 . x . . . . . x .
 . . x . x . x . .
 x . . . . . . . x
 . . x . x . x . .
 x . . . . . . . x
 . . x . x . x . .
 . x . . . . . x .
 . . . x . x . . .

Code: Select all
 . . . x . x . . .
 . x . . x . . x .
 . . x . . . x . .
 x . . . . . . . x
 . x . . x . . x .
 x . . . . . . . x
 . . x . . . x . .
 . x . . x . . x .
 . . . x . x . . .

Code: Select all
 x . . . . . . . x
 . . . x . x . . .
 . . x . x . x . .
 . x . . . . . x .
 . . x . x . x . .
 . x . . . . . x .
 . . x . x . x . .
 . . . x . x . . .
 x . . . . . . . x

Code: Select all
 x . . . . . . . x
 . x . . x . . x .
 . . . x . x . . .
 . . x . . . x . .
 . x . . x . . x .
 . . x . . . x . .
 . . . x . x . . .
 . x . . x . . x .
 x . . . . . . . x

Code: Select all
 x . . . x . . . x
 . . . x . x . . .
 . . x . . . x . .
 . x . . . . . x .
 x . . . x . . . x
 . x . . . . . x .
 . . x . . . x . .
 . . . x . x . . .
 x . . . x . . . x

Code: Select all
 x . . . x . . . x
 . x . . . . . x .
 . . . x . x . . .
 . . x . . . x . .
 x . . . x . . . x
 . . x . . . x . .
 . . . x . x . . .
 . x . . . . . x .
 x . . . x . . . x

JPF
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Postby mmurph211 » Tue Sep 25, 2007 12:04 am

I like the rug looking one


mmurph211
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A kind of spiral

Postby claudiarabia » Fri Oct 05, 2007 12:46 pm

A kind of spiral:
Code: Select all
1 . . . 3 . . . 5
. . . 6 . . . . .
. . 8 . . 4 9 . .
. . 6 . . . . 3 .
2 . . . 7 . . . 4
. 5 . . . . 8 . .
. . 4 8 . . 6 . .
. . . . . 1 . . .
3 . . . 2 . . . 7
SE 9.0


Code: Select all
1 . . . 3 . . . 5
. . . 6 . . . . .
. . 8 . . 4 9 . .
. . 6 . . . . 3 .
2 . . . 7 . . . 4
. 5 . . . . 8 . .
. . 4 8 . . 6 . .
. . . . . 9 . . .
3 . . . 2 . . . 7
The same Puzzle SE 7.3

Claudia
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Re: A kind of spiral

Postby m_b_metcalf » Fri Oct 05, 2007 2:37 pm

claudiarabia wrote:A kind of spiral:

Claudia,
A very productive pattern. You should have kept it back for the Patterns Game:!: :
Code: Select all
 8 . . . 6 . . . 9
 . . . 8 . . . . .
 . . 2 . . 1 4 . .
 . . 5 . . . . 9 .
 6 . . . 7 . . . 8
 . 4 . . . . 2 . .
 . . 4 5 . . 3 . .
 . . . . . 2 . . .
 7 . . . 1 . . . 6  SE 1.5
Code: Select all
 5 . . . 9 . . . 2
 . . . 6 . . . . .
 . . 8 . . 4 1 . .
 . . 6 . . . . 5 .
 2 . . . 7 . . . 9
 . 1 . . . . 8 . .
 . . 4 8 . . 5 . .
 . . . . . 9 . . .
 3 . . . 2 . . . 7 SE 9.4

Regards,

Mike Metcalf
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Postby Mauricio » Mon Oct 15, 2007 7:40 am

19 clues, horizontal and vertical symmetry, it is the first of this kind that I see:
Code: Select all
"Glasses"
 . . . . . . . . .
 . . 1 . . . 2 . .
 . 3 . 4 . 5 . 6 .
 . . . . 1 . . . .
 6 4 . . 7 . . 3 2
 . . . . 8 . . . .
 . 8 . 3 . 6 . 4 .
 . . 9 . . . 7 . .
 . . . . . . . . .
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Postby udosuk » Mon Oct 15, 2007 1:31 pm

Nice puzzle Mauricio, it takes a Y-wing/W-wing/semi-remote-pair to solve.

After singles and pairs:
Code: Select all
 *--------------------------------------------------------------------*
 | 8      569   *46     | 1     #36     2      |-3459   579    34579  |
 | 45     569    1      | 7      36     8      | 2      59     3459   |
 | 7      3      2      | 4      9      5      | 8      6      1      |
 |----------------------+----------------------+----------------------|
 | 29     7      35     | 26     1      34     | 4569   8      4569   |
 | 6      4      8      | 5      7      9      | 1      3      2      |
 | 29     1      35     | 26     8      34     | 4569   579    45679  |
 |----------------------+----------------------+----------------------|
 | 1      8      7      | 3      2      6      | 59     4      59     |
 | 345    56     9      | 8      45     1      | 7      2      36     |
 | 345    2     *46     | 9      45     7      |#36     1      8      |
 *--------------------------------------------------------------------*

There is an XY-wing but it doesn't solve the puzzle. Instead you can use the Y-wing with the {36} in r1c5+r9c7 and the strong link on 6 in r19c3 to eliminate 3 from r1c7, thus reducing the puzzle to singles.:idea:
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Postby JPF » Thu Oct 18, 2007 11:19 pm

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


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Postby JPF » Fri Oct 19, 2007 9:54 pm

Messier 101
Code: Select all
 . . . . 1 2 . . .
 . . . 3 . . . . .
 . . 4 . . 5 6 . .
 5 . 6 . . . . 7 .
 3 . . . 7 . . . 2
 . 8 . . . . 9 . 1
 . . 9 4 . . 7 . .
 . . . . . 3 . . .
 . . . 5 8 . . . .


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Some pairs of two

Postby claudiarabia » Sat Dec 15, 2007 2:27 pm

Code: Select all
. 3 . . 8 1 . . .
. 4 . . . . . 8 7
. . . 2 4 . . . .
4 . . . . . 5 . .
1 . 9 . . . 3 . 2
. . 7 . . . . . 8
. . . . 3 6 . . .
8 2 . . . . . 6 .
. . . 5 9 . . 4 .
ER 2.0 90°rotational symmetry
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Re: Some pairs of two

Postby TTHsieh » Sat Dec 15, 2007 5:06 pm

claudiarabia wrote:
Code: Select all
. 3 . . 8 1 . . .
. 4 . . . . . 8 7
. . . 2 4 . . . .
4 . . . . . 5 . .
1 . 9 . . . 3 . 2
. . 7 . . . . . 8
. . . . 3 6 . . .
8 2 . . . . . 6 .
. . . 5 9 . . 4 .
ER 2.0 90°rotational symmetry

Code: Select all
 . 1 . | . 2 3 | . . .
 . 2 . | . . . | . 4 5
 . . . | 4 6 . | . . .
 - - - + - - - + - - -
 7 . . | . . . | 5 . .
 6 . 4 | . . . | 8 . 9
 . . 1 | . . . | . . 6
 - - - + - - - + - - -
 . . . | . 8 4 | . . .
 8 5 . | . . . | . 7 .
 . . . | 2 3 . | . 6 .   ER=1.2

22 ratings wrote:010023000020000045000460000700000500604000809001000006000084000850000070000230060 # 1.2
010023000020000014000150000600000400701000805009000006000085000840000060000230070 # 1.5
010023000040000021000450000200000600603000702007000003000087000760000090000630080 # 1.7
010023000020000045000540000100000300607000408002000007000062000890000030000780050 # 2.3
010023000040000025000460000700000500201000307006000002000087000480000050000630080 # 2.5
010023000020000043000560000100000400407000108005000006000031000360000090000870030 # 2.6
010023000040000021000450000500000600403000702007000003000087000760000090000630080 # 2.8
010023000030000041000560000700000300804000506009000002000016000190000070000980050 # 3.0
010023000040000025000670000600000800907000304008000006000035000570000080000140090 # 3.4
010023000030000024000450000400000300602000705008000006000015000980000040000860070 # 4.2
010023000020000034000560000200000100107000305005000008000059000940000010000870060 # 4.4
010023000030000021000450000400000300605000704003000005000032000270000080000910050 # 4.5
010023000030000045000650000700000500601000809003000007000096000270000030000710080 # 5.6
010023000040000053000670000700000400809000502002000008000064000190000030000150040 # 5.7
010023000020000043000540000200000600607000108005000009000031000340000090000670030 # 6.6
010023000030000045000650000200000600105000403007000001000018000850000090000430060 # 6.69
010023000040000035000670000800000600403000102009000004000018000560000020000950040 # 6.7
010023000040000025000460000700000500201000308006000007000097000490000050000630090 # 6.9
010023000020000014000510000200000600304000708001000003000079000960000050000160070 # 7.1
010023000020000043000540000200000600708000109005000004000031000340000070000680030 # 7.2
010023000040000053000540000600000300107000208008000006000069000870000020000380040 # 7.3
010023000020000045000670000600000800105000409008000001000069000480000070000780090 # 8.3
......

TTHsieh
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Postby m_b_metcalf » Sat Dec 15, 2007 5:46 pm

... and there's this as well:
Code: Select all
 . 2 . . 4 9 . . .
 . 4 . . . . . 5 9
 . . . 2 3 . . . .
 1 . . . . . 9 . .
 2 . 8 . . . 4 . 3
 . . 7 . . . . . 5
 . . . . 1 8 . . .
 8 7 . . . . . 6 .
 . . . 5 9 . . 4 . SE 7.0

Regards,

Mike Metcalf
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Postby TTHsieh » Sat Dec 15, 2007 6:25 pm

m_b_metcalf wrote:... and there's this as well:
Code: Select all
 . 2 . . 4 9 . . .
 . 4 . . . . . 5 9
 . . . 2 3 . . . .
 1 . . . . . 9 . .
 2 . 8 . . . 4 . 3
 . . 7 . . . . . 5
 . . . . 1 8 . . .
 8 7 . . . . . 6 .
 . . . 5 9 . . 4 . SE 7.0

Regards,

Mike Metcalf

This pattern is too easy for Patterns Game race.
other 15 new ratings wrote:010023000040000056000750000200000500804000307009000002000016000530000060000290030 # 3.2
010023000040000025000670000400000500201000306007000002000089000680000050000710080 # 3.6
010023000020000045000670000200000800105000409008000001000069000380000020000780090 # 4.0
010023000030000024000450000600000200704000806008000005000035000180000090000210040 # 4.6
010023000040000035000610000400000700706000308008000009000081000950000070000960020 # 5.0
010023000020000045000670000600000100201000708003000004000015000850000070000790030 # 5.4
010023000040000056000560000700000800906000205001000004000052000420000070000970080 # 6.2
010023000040000056000740000800000600104000805006000003000074000580000090000510070 # 6.5
010023000020000045000560000300000400504000708008000002000039000950000080000710060 # 6.8
010023000040000053000460000700000800408000607006000005000056000320000080000130040 # 7.4
010023000040000035000670000400000100102000806006000007000062000960000010000980070 # 7.7
010023000020000034000560000100000300307000108005000006000042000460000090000370040 # 8.2
010023000040000052000670000800000900402000607006000008000042000520000080000130090 # 8.4
010023000040000035000670000300000100102000307006000008000042000850000010000890070 # 8.5
010023000020000014000560000500000700104000809007000001000059000840000060000830090 # 8.9

TTHsieh
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Postby TTHsieh » Sat Dec 15, 2007 6:50 pm

The easiest puzzle of the pattern.
Code: Select all
 . 5 . | . 4 6 | . . .
 . 4 . | . . . | . 2 1
 . . . | 2 5 . | . . .
 - - - + - - - + - - -
 3 . . | . . . | 1 . .
 5 . 2 | . . . | 6 . 7
 . . 7 | . . . | . . 2
 - - - + - - - + - - -
 . . . | . 6 2 | . . .
 6 1 . | . . . | . 3 .
 . . . | 4 8 . | . 5 .   ER=1.2


9 steps : 111111 - 2222 - 3333333 - 444444 - 55555 - 66666 - 7777777 - 88888888 - 999999999

TTHsieh
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Postby m_b_metcalf » Sat Dec 15, 2007 10:38 pm

TTHsieh wrote:This pattern is too easy for Patterns Game race.

Quite. But, as far as I know, Claudia produces these little gems by hand, so hats off to that!

Regards,

Mike Metcalf
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Postby TTHsieh » Sat Dec 15, 2007 10:55 pm

m_b_metcalf wrote:... Claudia produces these little gems by hand ...

It's a great job.

TTHsieh
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