The New Sudoku Players' Forum

[Yogi]

..9...5.4.....3.6....2..18.....1..72.6.8.2.9.79..6.....24..7....7.6.....5.6...9..

Code: Select all

+---+---+---+
|..9|...|5.4|
|...|..3|.6.|
|...|2..|18.|
+---+---+---+
|...|.1.|.72|
|.6.|8.2|.9.|
|79.|.6.|...|
+---+---+---+
|.24|..7|...|
|.7.|6..|...|
|5.6|...|9..|
+---+---+---+


[pjb]

Two AICs:

(3=1)r1c2 - (1)r1c6 = (1)r2c4 - (1=4)r9c4 => -4 r8c56, r9c8
(9 basics)
(4)r4c2 = (4)r23c2 - (4=6)r3c1 - (6)r3c6 = (6-1)r1c6 = (1-5)r2c4 = (5)r6c4 - (5=4)r6c6 => -4 r4c46; stte

Phil