Suggestion: more control over puzzle difficulty could be nice

Right now there are only 5 options for puzzle difficulty, from -600 to +600 puzzle rating. It would be nice to be able to select any puzzle rating, or at least have more control over the difficulty asides from choosing specific puzzle themes like mate in 1.

Unfortunately that is controlled on the server, @DailySoidumIntake . But do check out the improved Puzzle Dashboard. It tells you where you did well and where you didn't and you can replay those puzzles or improve exactly where you need it most.