January 3, 2016

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January 3, 2016

Postby ArkieTech » Sun Jan 03, 2016 12:26 am

Code: Select all
 *-----------*
 |...|3..|..7|
 |.4.|...|1..|
 |3..|..8|2.9|
 |---+---+---|
 |.2.|..9|5.4|
 |8..|...|.9.|
 |...|.1.|...|
 |---+---+---|
 |2..|.64|...|
 |6.3|7.2|...|
 |..7|...|..5|
 *-----------*


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dan
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Re: January 3, 2016

Postby SteveG48 » Sun Jan 03, 2016 12:41 am

Code: Select all
 *-----------------------------------------------------------------------------*
 | 159     15689   125689  | 3       2459    156     | 48      4568    7       |
 | 579     4       25689   | 2569    2579    567     | 1       3568    368     |
 | 3       1567    156     | 1456    457     8       | 2       456     9       |
 *-------------------------+-------------------------+-------------------------|
 | 17      2       16      | 68      378     9       | 5      e1678-3  4       |
 | 8       13567   1456    | 2456    23457   3567    |a37      9      d1236    |
 | 579     35679   4569    | 24568   1       3567    |a378     3678    2368    |
 *-------------------------+-------------------------+-------------------------|
 | 2       1589    1589    | 1589    6       4       |b3789    1378   c138     |
 | 6       1589    3       | 7       589     2       | 489     148    c18      |
 | 4       189     7       | 189     389     13      | 6       2       5       |
 *-----------------------------------------------------------------------------*


3r56c7 = r7c7 - (3=18)r78c9 - 1r5c9 = 1r4c8 => -3 r4c8 ; stte
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Re: January 3, 2016

Postby pjb » Sun Jan 03, 2016 1:06 am

Code: Select all
b159     15689   125689 | 3      2459  c156    | 48     4568   7     
 579     4       25689  | 2569   2579   567    | 1      3568   368   
 3       1567    156    | 1456   457    8      | 2      456    9     
------------------------+----------------------+---------------------
a17      2       16     | 68    f378    9      | 5     g3678-1 4     
 8       3567-1  456-1  | 2456   23457  3567   | 37     9     h1236   
 579     35679   4569   | 24568  1      3567   | 378    3678   2368   
------------------------+----------------------+---------------------
 2       1589    1589   | 1589   6      4      | 3789   1378   138   
 6       1589    3      | 7      589    2      | 489    148    18     
 4       189     7      | 189   e389   d13     | 6      2      5     

(1)r4c1 = r1c1 - r1c6 = (1-3)r9c6 = r9c5 - r4c5 = (3-1)r4c8 = r5c9 => -1 r4c8, r5c23; stte

Phil
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Re: January 3, 2016

Postby Leren » Sun Jan 03, 2016 7:08 am

Code: Select all
*--------------------------------------------------------------------------------*
| 159     15689   125689   | 3       2459    156      |b48     b4568    7        |
| 579     4       25689    | 2569    2579    567      | 1      b3568    368      |
| 3       1567    156      | 1456    457     8        | 2      b456     9        |
|--------------------------+--------------------------+--------------------------|
| 17      2       16       | 68      378     9        | 5       1678-3  4        |
| 8       13567   1456     | 2456    23457   3567     |a37      9       1236     |
| 579     35679   4569     | 24568   1       3567     |a378    a3678    2368     |
|--------------------------+--------------------------+--------------------------|
| 2       1589    1589     | 1589    6       4        | 3789    1378    138      |
| 6       1589    3        | 7       589     2        | 489     148     18       |
| 4       189     7        | 189     389     13       | 6       2       5        |
*--------------------------------------------------------------------------------*

ALS XZ Rule: X = 6, Z = 3: (3=6) r5c7, r6c78 - (6=3) r1c7, r123c8 => - 3 r4c8; stte

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Re: January 3, 2016

Postby hughwill69 » Sun Jan 03, 2016 7:19 pm

Code: Select all
 *-----------------------------------------------------------------------------*
 | f159    15689   125689  | 3       2459    e156    | 48      4568    7       |
 | 579     4       25689   | 2569    2579    567     | 1       3568    368     |
 | 3       1567    156     | 1456    457     8       | 2       456     9       |
 *-------------------------+-------------------------+-------------------------|
 | g17     2       16      | 68      b378    9       | 5       a16783  4       |
 | 8       h13567  h1456   | 2456    23457   3567    | 37      9       1-236   |
 | 579     35679   4569    | 24568   1       3567    | 378     3678    2368    |
 *-------------------------+-------------------------+-------------------------|
 | 2       1589    1589    | 1589    6       4       | 3789    1378   138      |
 | 6       1589    3       | 7       589     2       | 489     148    c18      |
 | 4       189     7       | 189     c389    d13     | 6       2       5       |
 *-----------------------------------------------------------------------------*

(1-3)r4c8=3r4c5-r9c5=(3-1)r9c6=1r1c6-r1c1=r4c1-r5c23 =>r5c1=1 stte
(This is my first attempt at Eureka following the Sudopedia page- please tell me if I've made a mistake
in the notation - or the chain-thanks Hugh)
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Re: January 3, 2016

Postby eleven » Mon Jan 04, 2016 7:07 pm

hughwill69 wrote:(1-3)r4c8=3r4c5-r9c5=(3-1)r9c6=1r1c6-r1c1=r4c1-r5c23 =>r5c1=1 stte

Well done (just a typo at the end, should be r4c1=1 or r5c9=1).
It's the same chain as Phil's above - read from right to left (always possible with AIC's).
A combination of 2 skyscrapers, which gives the link 3r4c8=1r4c1.
You can also shorten it to 3r4c8=3r4c5-r9c5=(3-1)r9c6=1r1c6-r1c1=1r4c1 => -1r4c8 stte
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Re: January 3, 2016

Postby hughwill69 » Tue Jan 05, 2016 12:15 am

eleven wrote:Well done (just a typo at the end, should be r4c1=1 or r5c9=1).
It's the same chain as Phil's above - read from right to left (always possible with AIC's).
A combination of 2 skyscrapers, which gives the link 3r4c8=1r4c1.
You can also shorten it to 3r4c8=3r4c5-r9c5=(3-1)r9c6=1r1c6-r1c1=1r4c1 => -1r4c8 stte


Thanks for your help. I'll take some more time studying...

Hugh
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Re: January 3, 2016

Postby eleven » Tue Jan 05, 2016 7:49 pm

Just fyi.
I'm all but an AIC missionary. I accept every notation, i can understand (and otherwise ask).
The AIC style here might differ from what sudopedia says (i never read that). But as fast as you got to write your chain correctly, you will quickly notice, that the styles here only differ in details. If you look at them, it should not be hard for you to find a way to write your moves, which is accepted without doctrinal discussions :)
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