Concerning solving methods for the hard and the hardest sudokus, my
understanding is that for sudokus with SE >~ 7.0 AICs and AICs with more
complex strong-link structures (with ALS, AUR, AHS, group nodes) and
ALS (including ALS chains and rings) can solve sudokus up to SE ~ 8.0.
For more difficult ones (up to ~9.0), multi inference chains like
Kraken, (including AAIC, aka as Kraken row,col,blossom ?) and Fish
Kraken are required and sufficient.
I recently had a chance to read and understand hidden pair loops, of which
I up to now thought it can solve the hardest sudoku, but this seems to
be not quite true. Only some of the hardest sudokus can be attacked by
hidden pair loops as an opening step.
My question is now, which are the methods that
fill the gap between Kraken methods (lets say SE~ 9.0) and
the hardest with SE ~ 11.x
I'm reading threads like
- hybrid sets / quantums
- hube rim and spoke
- bibi pattern
- the hardest (new thread)
- illusion of fata morgana
- monster loops
I partly begin to understand these things, but I'm missing a little bit
the global overview, the clear picture. Maybe just a confirmation like:
'yes these are most relevant threads' would be enough for me.
A last suggestion:
Is anybody willing to extend the thread 'collection of advanced solving methods'
by a list of relevant methods for this difficulty range.
Thanks in advance, surbier