The New Sudoku Players' Forum

by **tarek** » Mon Jun 29, 2020 6:36 am

Code: Select all: +-------+-------+-------+ | . 8 . | 1 . 2 | . . . | | . . 7 | . 3 5 | . . 6 | | . . . | . . . | . 4 . | +-------+-------+-------+ | 8 9 . | . . . | . . 5 | | . 1 . | . . . | . 8 . | | 3 . . | . . . | . 2 4 | +-------+-------+-------+ | . 3 . | . . . | . . . | | 2 . . | 7 5 . | 8 . . | | . . . | 2 . 1 | . 7 . | +-------+-------+-------+ .8.1.2.....7.35..6.......4.89......5.1.....8.3......24.3.......2..75.8.....2.1.7.

by **yzfwsf** » Mon Jun 29, 2020 7:36 am

Code: Select all: .----------------.------------------.--------------. | 569 8 3569 | 1 4 2 | 3579 359 79 | | p149 b24 7 | 8 3 5 | 129 a19 6 | | 15 b25 35 | 69 679 679 | 1235 4 8 | :----------------+------------------+--------------: | 8 9 246 | 346 1267 467 | 1367 136 5 | | 456 1 2456 | 34569 2679 4679 | 3679 8 79 | | 3 7 56 | 569 1689 689 | 169 2 4 | :----------------+------------------+--------------: | 7 3 1 | 469 689 4689 | 569 569 2 | | 2 46 49 | 7 5 3 | 8 a69 1 | | c59 bc56 8 | 2 69 1 | 4 7 3 | '----------------'------------------'--------------'

Death Blossom: r2c1,1-{r28c8},4-{r239c2},9-{r9c12} => -6r8c2; stte

by **Cenoman** » Mon Jun 29, 2020 8:52 am

Code: Select all: +--------------------+------------------------+--------------------+ | 569 8 3569 | 1 4 2 | 3579 359 79 | | a149* c24 7 | 8 3 5 | b129 a19* 6 | | 15 d25 35 | 69 679 679 | 1235 4 8 | +--------------------+------------------------+--------------------+ | 8 9 246 | 346 1267 467 | 1367 136 5 | | 456 1 2456 | 34569 2679 4679 | 3679 8 79 | | 3 7 56 | 569 1689 689 | 169 2 4 | +--------------------+------------------------+--------------------+ | 7 3 1 | 469 689 4689 | 569 569 2 | | 2 46 a49* | 7 5 3 | 8 a69* 1 | | f5-9 e56 8 | 2 69 1 | 4 7 3 | +--------------------+------------------------+--------------------+

Almost skyscraper [(9)r8c3 = r8c8 - r2c8 = r2c1] = (9-2)r2c7 = r2c2 - (2=5)r3c2 - r9c2 = (5)r9c1 => -9 r9c1; ste

by **SpAce** » Mon Jun 29, 2020 11:01 am

Code: Select all: .------------------------.-------------------.----------------. | 569 8 356-9 | 1 4 2 | 3579 359 79 | | ab149'* a24* 7 | 8 3 5 | 129 b19 6 | | 15 25 35 | 69 679 679 | 1235 4 8 | :------------------------+-------------------+----------------: | 8 9 246 | 346 1267 467 | 1367 136 5 | | 456 1 2456 | 34569 2679 4679 | 3679 8 79 | | 3 7 56 | 569 1689 689 | 169 2 4 | :------------------------+-------------------+----------------: | 7 3 1 | 469 689 4689 | 569 569 2 | | 2 a46* ad49'"* | 7 5 3 | 8 c69 1 | | 5-9 56 8 | 2 69 1 | 4 7 3 | '------------------------'-------------------'----------------'

Almost W-Wing:

[(9=4)r8c3 - r8c2 = r2c2 - (4=9)r2c1] = (1,9)r2c18 - r8c8 = (9)r8c3 => -9 r1c3,r9c1; stte

shorter expression: Show

5x5 PM: Show

...or:

Code: Select all: .-------------------.-------------------.-----------------. | 569 8 b3569 | 1 4 2 | 3579 359 79 | | c149 e24 7 | 8 3 5 | d129 c19 6 | | 15 25 35 | 69 679 679 | 1235 4 8 | :-------------------+-------------------+-----------------: | 8 9 246 | 346 1267 467 | 1367 136 5 | | 456 1 2456 | 34569 2679 4679 | 3679 8 79 | | 3 7 56 | 569 1689 689 | 169 2 4 | :-------------------+-------------------+-----------------: | 7 3 1 | 469 689 4689 | 569 569 2 | | 2 e4"6 a9'-4 | 7 5 3 | 8 b69 1 | | 59 56 8 | 2 69 1 | 4 7 3 | '-------------------'-------------------'-----------------'

(9)r8c3 = (9,9)r1c3,r8c8 - r2c18 = (92-4)r2c72 = (4)r8c2 => -4 r8c3; stte

5x5 PM: Show

by **SteveG48** » Mon Jun 29, 2020 12:13 pm

Code: Select all: *--------------------------------------------------------------------* | 569 8 3569 | 1 4 2 | 3579 359 79 | |c149 d4-2 7 | 8 3 5 |d129 c19 6 | | 15 25 35 | 69 679 679 | 1235 4 8 | *----------------------+----------------------+----------------------| | 8 9 246 | 346 1267 467 | 1367 136 5 | | 456 1 2456 | 34569 2679 4679 | 3679 8 79 | | 3 7 56 | 569 1689 689 | 169 2 4 | *----------------------+----------------------+----------------------| | 7 3 1 | 469 689 4689 | 569 569 2 | | 2 ab46 49 | 7 5 3 | 8 b69 1 | |b59 b56 8 | 2 69 1 | 4 7 3 | *--------------------------------------------------------------------*

4r8c2 = (469)b7p578&(69)r8c28 - 9r2c18 = (92)r2c27 => -4 r2c2 ; stte

by **Ngisa** » Mon Jun 29, 2020 5:10 pm

Code: Select all: +------------------+------------------------+------------------+ | 569 8 3569| 1 4 2 | 3579 359 79 | |d149 c24* 7 | 8 3 5 | 129 b1*9 6 | | 15 c25 35 | 69 679 679 | 1235 4 8 | +------------------+------------------------+------------------+ | 8 9 246 | 346 1267 467 | 1367 136 5 | | 456 1 2456 | 34569 2679 4679 | 3679 8 79 | | 3 7 56 | 569 1689 689 | 169 2 4 | +------------------+------------------------+------------------+ | 7 3 1 | 469 689 4689 | 569 569 2 | | 2 b46 fb49 | 7 5 3 | 8 a6-9 1 | |e59 b56 8 | 2 69 1 | 4 7 3 | +------------------+------------------------+------------------+

(9)r8c8 - (9=1*,465)r2c8,b7p658 - (5=24*)r32c2 - (1*4*=9)r2c1 - r9c1 = (9)r8c3 => - 9r8c8; stte

Clement

June 29, 2020