The New Sudoku Players' Forum

[ArkieTech]

Code: Select all

 *-----------*
 |...|..1|.2.|
 |3..|...|4..|
 |.56|7..|8..|
 |---+---+---|
 |7..|.8.|5..|
 |...|1.6|...|
 |..2|.5.|..9|
 |---+---+---|
 |..7|..8|94.|
 |..3|...|..6|
 |.1.|2..|...|
 *-----------*


Play/Print this puzzle online

[Leren]

Code: Select all

*-----------------------------------------------------------------------*
| 489    4789   489     | 345689 3469   1       | 367    2      357     |
| 3     f2789   189     | 5689   269    259     | 4      15679  157     |
|e1249   5      6       | 7      2349   2349    | 8      139    13      |
|-----------------------+-----------------------+-----------------------|
| 7      3469   149     | 349    8      2349    | 5      136    1234    |
| 4589   3489   4589    | 1      23479  6       | 237    378    23478   |
|d1468   3468   2       | 34     5      347     |c1367   13678  9       |
|-----------------------+-----------------------+-----------------------|
| 256    6-2    7       | 356    136    8       | 9      4     a1235    |
| 24589  2489   3       | 459    1479   4579    |b127    1578   6       |
| 45689  1      4589    | 2      34679  34579   | 37     3578   3578    |
*-----------------------------------------------------------------------*

(2) r7c9 = (2-1) r8c7 = r6c7 - r6c1 = (1-2) r3c1 = (2) r2c2 => - 2 r7c2; stte

Leren

[pjb]

Code: Select all

 489    4789   489    | 345689 3469   1      | 367    2      357   
 3      2789   189    | 5689   269    259    | 4      15679  157   
g1249   5      6      | 7      2349   2349   | 8      139    13     
 ---------------------+----------------------+---------------------
 7     e3469   149    | 349    8      2349   | 5      136    1234   
 4589   3489   4589   | 1      23479  6      | 237    378    23478 
f468-1 e3468   2      | 34     5      347    |a1367   13678  9     
 ---------------------+----------------------+---------------------
 256   d26     7      | 356    136    8      | 9      4     c1235   
 24589  2489   3      | 459    1479   4579   |b127    1578   6     
 45689  1      4589   | 2      34679  34579  | 37     3578   3578   


A bit longer
(1) r6c7 = (1-2) r8c7 = r7c9 - (2=6) r7c2 - r46c2 = (6-1) r6c1 = r3c1 => -1 r6c1; stte

Phil

[Leren]

pjb Wrote: A bit longer (1) r6c7 = (1-2) r8c7 = r7c9 - (2=6) r7c2 - r46c2 = (6-1) r6c1 = r3c1 => -1 r6c1; stte

You can make it a bit shorter: For my money you don't need the last term in your chain.

Leren

[pjb]

Leren wrote: You can make it a bit shorter: For my money you don't need the last term in your chain.

Your right of course - then you have a discontinuous nice loop as opposed to an AIC
Phil

[ronk]

A bit longer (1) r6c7 = (1-2) r8c7 = r7c9 - (2=6) r7c2 - r46c2 = (6-1) r6c1 = r3c1 => -1 r6c1; stte

You can make it a bit shorter: For my money you don't need the last term in your chain.

You're right of course - then you have a discontinuous nice loop as opposed to an AIC

As Leren has posted in the past, it's an AIC Type 2: (1) r6c7 = (1-2) r8c7 = r7c9 - (2=6) r7c2 - r46c2 = (6) r6c1 => r6c1<>1