The New Sudoku Players' Forum

by **Yogi** » Sun Oct 20, 2019 10:14 pm

000002050060000300040500000000630000800000070000100000000010604500007000200000000

: 17Oct19.png (10.09 KiB) Viewed 523 times

by **SpAce** » Sun Oct 20, 2019 11:53 pm

Code: Select all: .----------------.--------------.---------------------. | 1379 789 38 | 79 6 2 | 4 5 179 | | 79 6 5 | 789 4 1 | 3 9-8 2 | | 179 4 2 | 5 a89* 3 | a178* 6 a1789* | :----------------+--------------+---------------------: | 4 25 7 | 6 3 9 | 1258 c18 158 | | 8 3 1 | 2 5 4 | 9 7 6 | | 6 25 9 | 1 7 8 | 25 4 3 | :----------------+--------------+---------------------: | 379 789 38 | 89 1 5 | 6 2 4 | | 5 189 6 | 4 2 7 | 18 3 189 | | 2 b189# 4 | 3 a89* 6 | 57 ac189* 57 | '----------------'--------------'---------------------'

Kraken Grouped Skyscraper

(8)R39\c58b3 = (8-1)r9c2 = (18)r94c8 => -8 r2c8; stte

(Technically simpler solutions are available, but that's what I saw first and without any effort.)

The same remote fin and chain work with these alternate Kraken Turbots:

Kraken Crane: (8)R9B2\r2c58 = ...
Kraken Kite: (8)R9C4\r2c8b8 = ...

Code: Select all: Grouped Skyscraper <-> Finned (Sashimi) X-Wing Turbot Crane <-> Finned Franken X-Wing 2-String Kite <-> Finned Mutant X-Wing

by **SteveG48** » Mon Oct 21, 2019 2:28 am

Code: Select all: *-----------------------------------------------------------* | 1379 b789# b38 | 79# 6 2 | 4 5 179 | | 79# 6 5 |a789# 4 1 | 3 89 2 | | 179 4 2 | 5 89 3 | 178 6 1789 | *-------------------+-------------------+-------------------| | 4 25 7 | 6 3 9 | 1258 18 158 | | 8 3 1 | 2 5 4 | 9 7 6 | | 6 25 9 | 1 7 8 | 25 4 3 | *-------------------+-------------------+-------------------| |b379# a789# c38 | 9-8 1 5 | 6 2 4 | | 5 189 6 | 4 2 7 | 18 3 189 | | 2 189 4 | 3 89 6 | 57 189 57 | *-----------------------------------------------------------*

Uses 79 DP r1c24,r2c14,r7c12:

8r2c4,r7c2 =DP= 3r7c1|(83)r1c23 - (3=8)r7c3 => -8 r7c4 ; stte

by **ArkieTech** » Mon Oct 21, 2019 7:26 am

Code: Select all: *-----------------------------------------------------------* | 1379 789 38 | 79 6 2 | 4 5 179 | | 79 6 5 |b789 4 1 | 3 a89 2 | | 179 4 2 | 5 89 3 | 178 6 1789 | *-------------------+-------------------+-------------------| | 4 25 7 | 6 3 9 | 1258 18 158 | | 8 3 1 | 2 5 4 | 9 7 6 | | 6 25 9 | 1 7 8 | 25 4 3 | *-------------------+-------------------+-------------------| | 379 789 38 |c89 1 5 | 6 2 4 | | 5 189 6 | 4 2 7 | 18 3 189 | | 2 189 4 | 3 d89 6 | 57 18-9 57 | *-----------------------------------------------------------* [(9=8)r2c8-r2c4=r7c4-(8=9)r9c5]-9r9c8; ste

by **blue** » Mon Oct 21, 2019 8:10 am

Code: Select all: +-----------------+---------------+-------------------+ | 1379 789 38 | 79 6 2 | 4 5 179 | | 79 6 5 | 78*9 4 1 | 3 8*9* 2 | | 179 4 2 | 5 89 3 | 178 6 1789 | +-----------------+---------------+-------------------+ | 4 25 7 | 6 3 9 | 1258 18 158 | | 8 3 1 | 2 5 4 | 9 7 6 | | 6 25 9 | 1 7 8 | 25 4 3 | +-----------------+---------------+-------------------+ | 379 789 38 | 8*9* 1 5 | 6 2 4 | | 5 189 6 | 4 2 7 | 18 3 189 | | 2 18+9# 4 | 3 89* 6 | 57 189* 57 | +-----------------+---------------+-------------------+

2-digit, 7-link "oddagon" with one guardian.

9r9c2 = (oddagon: 9r9c5,9r7c4,8r7c4,8r2c4,8r2c8,9r2c8,9r9c8,loop) => +9r9c2; stte

(Same shape as Dan's elimination, I see)

by **SpAce** » Mon Oct 21, 2019 1:56 pm

blue wrote:2-digit, 7-link "oddagon" with one guardian.

9r9c2 = (oddagon: 9r9c5,9r7c4,8r7c4,8r2c4,8r2c8,9r2c8,9r9c8,loop) => +9r9c2; stte

Very nice! I don't think I've seen that Oddagon variant before, with mixed bilocation and bivalue links (*)! I like it. Definitely more efficient here than either of those pure types alone. [Edit. (*) Well, that doesn't sound very accurate. A normal (remote pair -like) "bivalue oddagon" has bilocation links too, of course. But you get my point.]

(Same shape as Dan's elimination, I see)

Seems that that 5-cell cluster contains a treasure trove of wing-patterns. Besides Dan's W-Wing, one can find several M-Wings and L2-Wings at least. Not really a wonder considering how many native strong links of both types are packed there (as your 1-guardian oddagon neatly demonstrates!).

by **eleven** » Mon Oct 21, 2019 8:28 pm

ArkieTech wrote:[(9=8)r2c8-r2c4=r7c4-(8=9)r9c5]-9r9c8; ste[/code]

No surprise. Every solver says w-wing or kite.

by **Cenoman** » Mon Oct 21, 2019 9:28 pm

Code: Select all: +--------------------+------------------+----------------------+ | 1379 789 38 | 79 6 2 | 4 5 179 | | 79 6 5 | 789 4 1 | 3 89 2 | | 179 4 2 | 5 89 3 | 178 6 1789 | +--------------------+------------------+----------------------+ | 4 25* 7 | 6 3 9 | 1258* 18* 158 | | 8 3 1 | 2 5 4 | 9 7 6 | | 6 25* 9 | 1 7 8 | 25* 4 3 | +--------------------+------------------+----------------------+ | 37-9 78-9 38 | d89 1 5 | 6 2 4 | | 5 a189* 6 | 4 2 7 | 18* 3 189 | | 2 a189* 4 | 3 c89 6 | 57 b189* 57 | +--------------------+------------------+----------------------+

MUG (1258)r4689c2, r468c7, r49c8 using internals
(9)r89c2==(9)r9c8 - r9c5 = (9)r7c4 => -9 r7c12; ste

by **rjamil** » Fri Oct 25, 2019 8:23 pm

eleven wrote:
ArkieTech wrote:[(9=8)r2c8-r2c4=r7c4-(8=9)r9c5]-9r9c8; ste[/code]
No surprise. Every solver says w-wing or kite.

:: OR ::

Code: Select all: +---------------+----------------+------------------+ | 1379 789 38 | 79 6 2 | 4 5 179 | | 79 6 5 | 7[8]9 (4) 1 | 3 (89) 2 | | 179 4 2 | 5 [8]9 3 | 178 6 1789 | +---------------+----------------+------------------+ | 4 25 7 | 6 3 9 | 1258 18 158 | | 8 3 1 | 2 5 4 | 9 7 6 | | 6 25 9 | 1 7 8 | 25 4 3 | +---------------+----------------+------------------+ | 379 789 38 | 89 1 5 | 6 2 4 | | 5 189 6 | 4 2 7 | 18 3 189 | | 2 189 4 | 3 (89) 6 | 57 18-9 57 | +---------------+----------------+------------------+

W-Wing: 89 @ r2c8 r9c5 ERI 8 @ b2r2c5 => -9 @ r9c8; stte

R. Jamil

The New Sudoku Players' Forum

17October19

17October19

Re: 17October19

Re: 17October19

Re: 17October19

Re: 17October19

Re: 17October19

Re: 17October19

Re: 17October19

Re: 17October19