eleven wrote:(3r6c2 -> -3r6c58 -> 34r4c8,r6c5 -> 9r4c5) => -39r1467c2 => 1r7c2 | (5r1c2 -> 1r3c3 -> -1r3c8 -> 1r2c7) => -1r7c7, stte
[Added:] Explanation for the link (1=5)r1467c2:
Since 39 cannot be both there, you have an ALS (1=[39]285)r1467c2, where [39] counts as one digit.
Sorry, I couldn't resist...
(1)r2c7 = r3c8 - (1=5)r3c3 - (5)r1c2 = [(1=2389)r7164c2 - r4c5 = (9-3)r5c5 = r5c3 - (3289=1)r1467c2] => -1 r7c7; stte
...or simply:
(1)r2c7 = r3c8 - (1=5)r3c3 - (5)r1c2 = [[(3-9)r5c5] -> (3|9)r5c31 - (3928=1)r4617c2] => -1 r7c7; stte
- Code: Select all
1r2c7 1r3c8
1r3c3 5r3c3
1r7c2 5r1c2 3928r1467c2
3r5c3 3r5c5
9r5c1 9r5c5
------------------------------------
-1r7c7
Also reveals that (2389)r1467c2 is impossible. Thus:
- Code: Select all
1r2c7 1r3c8
1r3c3 5r3c3
1r7c2 5r1c2
------------------
-1r7c7
Not so simple as an unfolded matrix:
- Code: Select all
1r2c7 1r3c8
1r3c3 5r3c3
5r1c2 2r1c2 8r1c2
8r6c2 3r6c2
3r5c3 3r5c5
9r5c5 9r5c1
3r4c2 ..... 9r4c2 2r4c2
1r7c2 ................. 8r7c2 ................. 2r7c2
2r4c2 ............................. 3r4c2 9r4c2
9r5c1 9r5c5
3r5c5 3r5c3
3r6c2 8r6c2
3r6c2 ................. 8r6c2
1r7c2 ........... 2r7c2 ..................................................... 8r7c2
------------------------------------------------------------------------------------
-1r7c7