I also had difficult solving because of the close colors. I had to make sure my light was shining correctly to be able to distinguish the show black colors. Otherwise, an interesting puzzle.

I also had difficult solving because of the close colors. I had to make sure my light was shining correctly to be able to distinguish the show black colors. Otherwise, an interesting puzzle.

Good one. That dark grey is a bit too close to black for comfort. I had to change it to something else the help with solving the puzzle.

Good one. That dark grey is a bit too close to black for comfort. I had to change it to something else the help with solving the puzzle.