Anyone doing these? My wife (Level 107) reported it took 700,000 coin-in to clear the first three puzzles. All for the chance at 3,000 chips, 6,000 chips, and 15,000 (x7 bonus multiplier). Total bonus chips received was 77,000. Not exactly the greatest payback...but she did get 750 lp for completing. I'm at level 143 and its the same bonus. I think I'll pass.