expert puzzle

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expert puzzle

Postby Freshman » Wed Jul 28, 2021 10:40 am

Hello, could anyone help me with this puzzle? I can't see any moves here. Everything has two or more combinations.. Is there a possibility that I have to guess? Please help

https://ibb.co/sFmGtYd
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Re: expert puzzle

Postby jco » Thu Jul 29, 2021 1:03 pm

Hello Freshman,

The configuration in that picture is the following.

Code: Select all
.-------------------------------------------------.
| 8     347  3467 | 1    457   457   | 56  9   2  |
| 5     9    1    | 3    6     2     | 4   8   7  |
| 467   47   2    | 8    9     457   | 56  1   3  |
|-----------------+------------------+------------|
| 2     347  8    | 457  1     34567 | 9   67  45 |
| 9     5    467  | 47   8     467   | 2   3   1  |
| 3467  1    3467 | 2    3457  9     | 8   67  45 |
|-----------------+------------------+------------|
| 37    8    9    | 57   2     357   | 1   4   6  |
| 47    6    5    | 9    47    1     | 3   2   8  |
| 1     2    34   | 6    34    8     | 7   5   9  |
'-------------------------------------------------'

The configuration of 3s in blocks 4,5,7,8 is promising for
finding a single digit pattern (Keith's trick).
If you can find a skyscraper on the digit 3 (there are 3 of them),
you will be able to solve the puzzle quickly.

Regards,
JCO
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Re: expert puzzle

Postby denis_berthier » Thu Jul 29, 2021 4:59 pm

.
Code: Select all
Resolution state after Singles and whips[1]:
   +----------------+----------------+----------------+
   ! 8    347  3467 ! 1    57   457  ! 56   9    2    !
   ! 5    9    1    ! 3    6    2    ! 4    8    7    !
   ! 46   47   2    ! 8    9    457  ! 56   1    3    !
   +----------------+----------------+----------------+
   ! 2    347  8    ! 457  1    3567 ! 9    67   45   !
   ! 9    5    467  ! 47   8    67   ! 2    3    1    !
   ! 346  1    3467 ! 2    357  9    ! 8    67   45   !
   +----------------+----------------+----------------+
   ! 37   8    9    ! 57   2    357  ! 1    4    6    !
   ! 47   6    5    ! 9    47   1    ! 3    2    8    !
   ! 1    2    34   ! 6    34   8    ! 7    5    9    !
   +----------------+----------------+----------------+


finned-x-wing-in-rows: n3{r7 r4}{c6 c1} ==> r6c1 ≠ 3
stte
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Re: expert puzzle

Postby Freshman » Fri Jul 30, 2021 7:53 am

Thank you :)
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