See Puzzle 14 for instructions. It seems this design is a hit! I've actually gotten requests for more, so here you are. I was wondering how difficult it would be to make one with only two colors. I was also wondering how difficult it would be to make one with symmetrical givens. I succeeded on both counts, but I reserve the right to use asymmetrical givens and as many colors as I bloody well please in future compositions.
Yes, I'm counting black as a color. Yes, I know and agree that it isn't a color but rather the lack of one, but it's really just a matter of semantics. It has a Crayola crayon, I can call it a color. Computer printers call it a color - it has its own ink. Black is typically abbreviated as 'K' to distinguish it from blue's 'B', so those of you who submit their answers in text know what to type.
The comment box is open as usual, and emailing me your solution may get you more curious puzzles to solve, especially if you're first. - ZM