Control: fixed -1 20191231.79a5378-1I think Pattern's difficulties with generating 1xn puzzles were fixed by this upstream commit:
https://git.tartarus.org/?p=simon/puzzles.git;a=commitdiff;h=b8313181a6104624000e9cc008e8e26b67aeb655The first entry in the Debian change log after that is for version 20191231.79a5378-1.
To demonstrate the fix, run "sgt-pattern --generate 1000 1x1". Pattern will generate 1000 rather uninteresting puzzles in a fraction of a second.
-- Ben Harris