OP! Call the people that make the puzzle, some offer replacement pieces. My wife spilled a drink that should never have been on the puzzle table and warped 4 pieces. We contacted them, showed them the pieces and placement spots via photo and they sent them to us. I also have two puzzles with a similar approach you might enjoy since you clearly love torture. Pieces decrease in size towards the middle, puzzle is round instead of square and they are high res images - earth and the moon. Obviously you’d have an easier time with a design and colours but if you’re up for another puzzle, I’d look for those.

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