Excellent! ?? – Escape from the Art Gallery. Review

Best one yet from this dev. Challenging, but so satisfying when you solve it. Took me a few days. I was stuck on the final puzzle until I re-read the app description... Dev added: 'Contents of memo, topmost is 4 7 9..sorry'. This is missing from the game but necessary to solve it. Just copy the memo clue to a piece of paper being sure to make the top line 4 7 9..it's a Sudoku puzzle. Solve it and apply it in the game to finally escape. Thank you, dev, for adding this info. Well done, please make more games! ??
Review by Casual mode on Escape from the Art Gallery..