The meaning of difficulty labels varies wildly between publications, I think.
Just as a quick example the current "Hard" puzzle on the NY Times website is a 3.0 (and can be solved with one pair, and otherwise singles).
mith wrote:The meaning of difficulty labels varies wildly between publications, I think.
Just as a quick example the current "Hard" puzzle on the NY Times website is a 3.0 (and can be solved with one pair, and otherwise singles).