The New Sudoku Players' Forum

[SteveG48]

Code: Select all

 *-----------*
 |...|.67|49.|
 |...|...|.3.|
 |.7.|9..|8..|
 |---+---+---|
 |.5.|37.|..9|
 |..1|.9.|5..|
 |9..|.21|.8.|
 |---+---+---|
 |..8|..6|.2.|
 |.2.|...|...|
 |.64|71.|...|
 *-----------*


[Ngisa]

Code: Select all

+--------------------+----------------+-----------------------+
| 258     138    235 | 12    6     7  | 4       9       25    |
| 246    c14     9   |c12    8     5  |b267     3       267   |
| 256     7      256 | 9     4     3  | 8       16      1256  |
+--------------------+----------------+-----------------------+
| 2468    5      26  | 3     7     48 |a126     146     9     |
| 2478    348    1   | 6     9     48 | 5       47     f347-2 |
| 9      d34     367 | 5     2     1  |e367     8      e3467  |
+--------------------+----------------+-----------------------+
| 157     9      8   | 4     35    6  | 137     2       137   |
| 157     2      57  | 8     35    9  | 1367    1467    13467 |
| 3       6      4   | 7     1     2  | 9       5       8     |
+--------------------+----------------+-----------------------+


(2)r4c7 = r2c7 - (2=14)r2c42 - (4=3)r6c2 - r6c79 = (3)r5c9 => - 2r5c9; stte

Clement

[RSW]

Code: Select all

 +--------------+-----------+------------------+
 | 258  138 235 | 12  6  7  |  4    9    25    |
 | 46-2 14  9   | 1-2 8  5  |ab267  3   a267   |
 | 256  7   256 | 9   4  3  |  8   a16   1256  |
 +--------------+-----------+------------------+
 | 2468 5   26  | 3   7  48 | c126 b146  9     |
 | 2478 348 1   | 6   9  48 |  5    47   2347  |
 | 9    34  367 | 5   2  1  |  367  8    3467  |
 +--------------+-----------+------------------+
 | 157  9   8   | 4   35 6  |  137  2    137   |
 | 157  2   57  | 8   35 9  |  1367 1467 13467 |
 | 3    6   4   | 7   1  2  | 9    5    8     |
 +--------------+-----------+------------------+


(2=671)b3p468 - (1)r4c8 = (1-2)r4c7 = (2)r2c7 => -2r2c14; stte

[Leren]

Code: Select all

*---------------------------------------------*
| 258   138 235 | 12 6  7  | 4    9     25    |
| 246  b14  9   |a12 8  5  | 67-2 3     267   |
| 256   7   256 | 9  4  3  | 8    16    1256  |
|---------------+----------+------------------|
| 2468  5   26  | 3  7  48 |f126  146   9     |
| 2478 d348 1   | 6  9  48 | 5    47   e2347  |
| 9    c34  367 | 5  2  1  | 367  8     3467  |
|---------------+----------+------------------|
| 157   9   8   | 4  35 6  | 137  2     137   |
| 157   2   57  | 8  35 9  | 1367 1467  13467 |
| 3     6   4   | 7  1  2  | 9    5     8     |
*---------------------------------------------*

(2=1) r2c4 - (1=4) r2c2 - (4=3) r6c2 - (3) r5c2 = (3-2) r5c9 = (2) r4c7 => - 2 r2c7; stte

Leren

[Hajime]

No one liner but lots of simple eliminations:

Hidden Text: Show

[1,1] r9c8=5 Naked Single
[2,2] r9c1=3 Naked Single
[2,3] r9c7=9 Naked Single
[2,4] r9c9=8 Naked Single
[3,5] r9c6=2 Naked Single
[4,6] r6c4=5 Hidden Single in row 6
[4,7] r7c2=9 Hidden Single in row 7
[4,8] r8c6=9 Hidden Single in row 8
[4,9] r2c3=9 Hidden Single in col 3
[4,10] r5c4=6 Hidden Single in col 4
[4,11] r3c6=3 Hidden Single in col 6
[4,12] r2c6=5 Hidden Single in col 6
[5,13] r3c5=4 Naked Single
[5,14] r7c4=4 Naked Single
[5,15] r8c4=8 Naked Single
[6,16] r2c5=8 Naked Single
[7,16] Pointing, Claiming | (1)b7,c1 => (-1)r1c1 (-1)r2c1 (-1)r3c1
[8,16] Pointing, Claiming | (1)r3,b3 => (-1)r1c9 (-1)r2c7 (-1)r2c9
[9,16] XYZ-Wing Type B on {348} (-4)b4r5 => (-4)r5c1
[10,16] 2-String Kite(2)r2c7=r4c7-r5c9=r5c1 => (-2)r2c1
[11,16] Skyscraper(7)r5c8=r8c8-r8c3=r6c3 => (-7)r5c1 (-7)r6c7 (-7)r6c9
[12,17] r6c3=7 Hidden Single in row 6
[12,18] r1c3=3 Hidden Single in col 3
[13,19] r8c3=5 Naked Single
[13,20] r8c5=3 Naked Single
[14,21] r7c5=5 Naked Single
[15,21] Pointing, Claiming | (6)b4,r4 => (-6)r4c7 (-6)r4c8
[16,21] Skyscraper(2)r2c7=r4c7-r4c3=r3c3 => (-2)r3c9
[17,21] Pointing, Claiming | (2)r3,b1 => (-2)r1c1
[18,21] (X)Y-Wing |
XY-wing [3] (2)(2=5)r1c9-(5=8)r1c1-(8=2)r5c1 => (-2)r5c9
[19,22] r5c1=2 Hidden Single in row 5
stte