95....67. .....731. 8..561... 23....... ..9...1.. .......37 ...145..9 .942..... .85....21
Several humans and my prog all get stuck at
951...678 .....7315 873561... 23..1.... ..9...1.. .1.....37 3..145..9 1942....3 .85...421
If you know the logical trick to carry on , please do let me know.
The 4th and 5th gaps in row 2 must each be either 8 or 9, and putting in 9 and 8 leads to an impossibility, but quite a few steps on. Putting in 8 and 9 doesn't seem to make anything clearer, though it must be right...
