The New Sudoku Players' Forum

[claudiarabia]

Code: Select all

. 7 . . 2 . . 9 .
9 . . 6 . . 5 . .
. . 1 . . 4 . . .
. . . . 8 . . 6 .
. 4 . . . . 7 . .
8 . . 5 . . . . 2
. . 3 . . 9 . . .
. 6 . . 7 . . 8 .
2 . . 1 . . 4 . .            Broken Stripes

Happy solving!

Claudia

[claudiarabia]

Claudia,

Code: Select all

. . . . . . . . .
. 2 4 . . . 8 6 .
. 8 . 7 . 5 4 . .
. 9 . . 4 8 . 1 .
. . . 2 . 3 . . .
. 4 . 1 7 . . 3 .
. . 2 3 . 6 . 8 .
. 3 9 . . . 7 2 .
. . . . . . . . . 


Did you catch the UR Type 1 on <58>? It eliminates the XY-Chain and make both variants of this puzzle have identical solutions.

[Update:] It occurs to me that you might be using an XY-Chain where Simple Sudoku chose to use Multi-Coloring. If so, then the UR Type 1 wouldn't affect your solution. I'm sorry if I only made things confusing!

Sorry, I didn't spot the UR Type 1 on <58>. Do you mean c4 in r8 and 9? Maybe I solved the cells around another way.

Anyway, After using the "simple past"-method, I chose to make a chain out of the three free cells in column 8: r1 = 57, r 5 = 47, r9 = 45. I assumed r5c8 to be 4 and found a contradiction then while trying to complete the box containing r4-6 c1-3. The puzzle was solved then very easily too.

Claudia

[daj95376]

Yes, the UR Type 1 was off <58> in [r89c14]. Another way is to use Colors and Multi-Colors to get the same elimination of [r9c1]<>58. It's possible that you took this route. Anyway, after the UR elimination, Colors and Multi-Colors are all that's needed (besides singles) to complete the puzzle.

[claudiarabia]

Code: Select all

3 . . . 7 . . . 1
. 8 . . . . . 5 .
. . . 9 . . 6 . .
. 6 . . . 1 . 8 .
. . . . 4 . . . .
. 5 . 2 . . . 9 .
. . 4 . . 5 . . .
. 9 . . . . . 2 .
5 . . . 3 . . . 7

who likes it minimal may omit r9c1.

Claudia

[claudiarabia]

Code: Select all

3 . 9 . . . . . .
. 7 . 3 . 5 . . .
8 . . . 1 . . . .
. . . 7 . 6 . 2 .
. . 4 . . . 7 . .
. 3 . . . 9 . 5 .
6 . . . 8 . . . 3
. 9 . 1 . . . 6 .
. . 1 . . . 4 . 5   Catamaran

Claudia

[JPF]

Your catamaran is very nice.

Here is a brand-new model : lighter and easier to control

Code: Select all

 . . 8 . . . . . .
 . 9 . 6 . . . . .
 4 . . . 1 . . . .
 . . . 7 . 5 . . .
 . . 4 . . . 1 . .
 . 3 . . . 9 . 5 .
 2 . . . 8 . . . 9
 . 5 . 9 . . . 7 .
 . . 7 . . . 4 . .




JPF

[claudiarabia]

Your catamaran is very nice.

Here is a brand-new model : lighter and easier to control

Code: Select all

 . . 8 . . . . . .
 . 9 . 6 . . . . .
 4 . . . 1 . . . .
 . . . 7 . 5 . . .
 . . 4 . . . 1 . .
 . 3 . . . 9 . 5 .
 2 . . . 8 . . . 9
 . 5 . 9 . . . 7 .
 . . 7 . . . 4 . .


JPF

Thanks for this 20-clue version. Yes it's a beauty. Not only lighter but faster too. And safer for I can recover from turbot-fish-attacks this time.

Claudia

[JPF]

Code: Select all


 . . . . . . . . 5
 . . 1 7 . . . 4 .
 . 2 . . 9 . 8 . .
 . 1 . . . 7 . . .
 . . 3 . . . 2 . .
 . . . 1 . . . 5 .
 . . 5 . 3 . . 1 .
 . 8 . . . 2 6 . .
 9 . . . . . . . .     spinning top



easy

JPF

[claudiarabia]

Code: Select all

. . . . . . . . .
8 . . . 2 . . . 5
. . . . . 6 2 4 .
. 3 . . . 7 1 . .
1 . 5 . . . 6 . 9
. . 7 4 . . . 2 .
. 7 2 5 . . . . .
6 . . . 8 . . . 1
. . . . . . . . .

Not as straight as ab's slashes but still challenging.

Claudia

[claudiarabia]

I don't know if these true hearts are already known. Thanks to ajb:

Code: Select all

.15...26.
9..4.1..8
8...2...3
4.......6
2.......7
.6.....5.
..9...1..
...5.7...
....9....

.79...43.
6..2.5..9
3...7...5
8.......7
.2.....8.
.4.....6.
..6...5..
...7.4...
....1....


easy to solve, so just for the soft hearted.

Thank you. Not known to me until now.

Claudia

[daj95376]

Code: Select all

.........8...2...5.....624..3...71..1.5...6.9..74...2..725.....6...8...1.........

# after basic eliminations
 *--------------------------------------------------------------------*
 | 3457   2      1369   | 1389   459    3589   | 389    13689  3678   |
 | 8      169    13469  | 7      2      349    | 39     1369   5      |
 | 357    159    139    | 1389   59     6      | 2      4      378    |
 |----------------------+----------------------+----------------------|
 | 2      3      68     | 69     569    7      | 1      58     4      |
 | 1      4      5      | 28     3      28     | 6      7      9      |
 | 9      68     7      | 4      156    15     | 358    2      38     |
 |----------------------+----------------------+----------------------|
 | 34     7      2      | 5      1469   139    | 3489   3689   68     |
 | 6      59     349    | 23     8      234    | 7      35     1      |
 | 345    18     18     | 369    7      39     | 3459   3569   2      |
 *--------------------------------------------------------------------*

[r4c5]=5 =>                         [r6c6]=1
         => [r3c5]=9 => [r1c5]=4 => [r2c6]=3 => [b8]=INVALID

Therefore, [r4c5]<>5


Puzzle solves with singles from here.

[ronk]

A spider maybe ...

Code: Select all

 . 3 . . 4 . . . 6
 . . . . . . 5 3 .
 . . . . . . . 1 .
 . . 1 2 . . . . .
 . 4 . . 5 . . . 8
 9 . . . . 7 . . .
 2 . . . . 6 . . .
 . 5 . . 3 . . . 4
 . . 7 1 . . . . .


A very difficult spider BTW.

[JPF]

A spider maybe ...
A very difficult spider BTW.

When I look at the solution given by some web solvers to your puzzle,
it looks like a spider's web.

Some variations :

Code: Select all

050040006000000530000000010001200000040050008900007000200006000080030004007100000
030040002000000530000000010001600000040050008600007000200006000050080004007100000


JPF

[ronk]

When I look at the solution given by some web solvers to your puzzle

Wish it were mine. However, it's merely a permutation of an Ocean "X puzzle" from here ... with one clue deleted.

# ER-9.9:
100000002030040050006000700000103000040060080000405000002000900050030040700000001

[JPF]

However, it's merely a permutation of an Ocean "X puzzle"

Well done !

JPF