Any tips to solving this puzzle

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Any tips to solving this puzzle

Postby Fonzarelle » Wed Dec 15, 2021 12:34 am

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Re: Any tips to solving this puzzle

Postby Leren » Wed Dec 15, 2021 4:46 am

9...1..7....7....9...935........8..1....4179.16.25...4.5..6...76.31..9457..5..2..

Not a complete solution but here is a move that moves you forward quite a lot, from your PM position.

Code: Select all
*--------------------------------------------------------------------------------*
| 9       234     24568    | 48      1       246      | 34568   7       2368     |
| 23458   12348   124568   | 7       28      246      | 134568  123568  9        |
| 248     12478   124678   | 9       3       5        | 1468    1268    268      |
|--------------------------+--------------------------+--------------------------|
| 234     23479   247      | 36      79      8        | 56      256     1        |
| 2358    238     258      | 36      4       1        | 7       9       26       |
| 1       6       79       | 2       5       79       | 38      38      4        |
|--------------------------+--------------------------+--------------------------|
| 248     5       12489    |b48      6       249-3    |b138    b138     7        |
| 6       28      3        | 1       278     27       | 9       4       5        |
| 7       1489    148      | 5       89     a34       | 2       168-3   68-3     |
*--------------------------------------------------------------------------------*

ALS XZ Rule: X = 4, Z = 3: (3=4) r9c6 - (4=3) r7c478 => - 3 r7c6, r9c89

Leren
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Re: Any tips to solving this puzzle

Postby Yogi » Wed Dec 22, 2021 8:11 pm

If UR-type eliminations bring the puzzle to here:
9...1..73...7....9.7.935....9..78..1....4179.167259..4.59.6...76.31.79457..5932..
Code: Select all
+---+---+---+
|9..|.1.|.73|
|...|7..|..9|
|.7.|935|...|
+---+---+---+
|.9.|.78|..1|
|...|.41|79.|
|167|259|..4|
+---+---+---+
|.59|.6.|..7|
|6.3|1.7|945|
|7..|593|2..|
+---+---+---+

Then the naked pair 48r17c4 can be solved with an AIC Type2:
(4=8)r1c4-(8=2)r2c5-(2=8)r8c5-(8=4)r7c4 proving r1c4 = 4, r7c4 = 8 which should leave STTE
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