Fun puzzle with a quick buildup start in block 9's left side: pair of 13 in the middle row, pair of 27 in the upper row, and hence, from left to right in row 9: 4,5 and 8. With that in store, you can notice among other things that column 3 has the 8 in row 7, a 47 pair in rows 2 and 8, and a 25 pair in rows 5 and 6. Still some work to do, but you have quite a nice framework of retrictions to make further progress. P.S.: I did not specify that the immediate impact of having a 47 in r8c3 was to place a 2 in r8c1, because I thought it was too obvious, but.... Your comments on micro-studies are interesting. But another common sense issue that would require an impossible macro stdy is whethe r the utopia coming mostly, but not exclusively, from the left that it is up to the State to practice social engineering as if people were pawns that must be dirrected to the State idea of what is good for them, is something that must be discarded entirely. As I am writing this, fond memories of reading Aldous Huxley come to mind.
The quickest start is the 6 and 9 in box 9
Fun puzzle with a quick buildup start in block 9's left side: pair of 13 in the middle row, pair of 27 in the upper row, and hence, from left to right in row 9: 4,5 and 8. With that in store, you can notice among other things that column 3 has the 8 in row 7, a 47 pair in rows 2 and 8, and a 25 pair in rows 5 and 6. Still some work to do, but you have quite a nice framework of retrictions to make further progress. P.S.: I did not specify that the immediate impact of having a 47 in r8c3 was to place a 2 in r8c1, because I thought it was too obvious, but....
Your comments on micro-studies are interesting. But another common sense issue that would require an impossible macro stdy is whethe r the utopia coming mostly, but not exclusively, from the left that it is up to the State to practice social engineering as if people were pawns that must be dirrected to the State idea of what is good for them, is something that must be discarded entirely. As I am writing this, fond memories of reading Aldous Huxley come to mind.
I recommend A Conflict of Visions by Dr. Thomas Sowell.
11 minutes, no pencil marks