Additionally the puzzles mostly revolve around moving around in the game world until you can see the "solution" to the board in the surroundings, at which point you then simply input it; while working out the solution based on rules inherent to the puzzle is often impossible.
For example there are two entire sections where the puzzle boards offer zero hints as to the solution and the player has to move around so ----------, which one then follows or redraws with the mouse. Other puzzles involve around walking ---------------------------- so that ---------------- form continuous lines which one then traces with the mouse.
I found myself utterly bored because even 10+ hours in i still felt like playing a really elaborate game of "find the easter egg" instead of actually using my brain.
YMMV.