ronk wrote:How can you ignore the other digit 6 candidates in c5? Did you mean b5?
I did not change the main point.
Whatever digits are occupying r46c5, r2c4 and r6c8 are occupied by the same digits.
Probe: each digit occupying r46c5 => same digit in one of the 2 cells.
This is the situation where 6r46c5 is true. Then, other candidates in column c5 are false.
In my first "probe", 6r46c5 had been split in 6r4c5 true and 6r6c5 true.
Here, 6r46c5 true is seen globally.
ronk wrote:champagne wrote:My split in 2 cases was not necessary. We just skip from an "almost" swordfish to an "almost" Jellyfish.
I don't see anything as small as a swordfish here, [edit: but it may be because I don't know what you mean by "almost" fish. For me, they're just finned fish, both sashimi and non-sashimi.]
Sorry, but my vocabulary in the fish field is extremely poor.
In my first "probe", both xr2c4 and xr8c6 false created a 3x4 closed deadly pattern. What I call "almost swordfish"
In that case, both 6r2c4 and 6r8c6 create a close 4x5 deadly pattern. What I intend to call an "almost Jellyfish".
But I can rally any existing name for such structures.
champagne