Flip’s Challenge is excellent! – Flip's Challenge Review

I solved all 311 solvable Sokoban puzzles. #53 is obviously broken. The red hole on the right should be deleted to allow any solution. I spent about three weeks off-and-on solving these. Very enjoyable. Thanks for the challenge. What to improve? There are some puzzles that the three buttons partly hide the maze on iPad. Please add a four arrows directional control, and expand the maze to fit the screen size. Fix #53.
Review by jollyoldsaintnickname on Flip's Challenge.