[Olphander]

Ameen.

Hmmm... that's hard to answer, almost harder than doing the puzzle itself. For me, I would rate it at a 6-7/10... it's that 'click' moment that pushes and once you get the 'click' (tests flexibility) the rest just flows.

@ brother Ahmed: true and perhaps it is wrong to spend time doing things like sudoku puzzles and such from time to time however, it seems to help with flexibility in problem-solving in other areas too alhamdulillah.