Is there a classification of solving techniques based on the number of elements involved?
Element is a house or a digit, i.e. one of the 9 rows, 9 columns, 9 boxes, or 9 digits.
dobrichev wrote:Is there a classification of solving techniques based on the number of elements involved?
Element is a house or a digit, i.e. one of the 9 rows, 9 columns, 9 boxes, or 9 digits.
Ruud wrote:I have written logic in the program for detecting naked singles, hidden singles, naked subsets, hidden subsets, X-wings and coloring, but the template technique removes the same candidates (and more!) without knowing why it did that.
ronk wrote:Some of us use the number of rows, columns, boxes and cells as an arbiter for the relative difficulty of moves. Adding the number of digit layers to this seems like a good idea.
dobrichev wrote:IMO a cell is always examined in the context of some intersection of houses. Just a speculation.