It’s the A Cornucopia of Murder Sliding Puzzle!
A Cornucopia of Murder is book 7 in the Charlie Kingsley mystery series.
See if you can solve the puzzle without peeking at the cover.
To move the pieces, all you have to do is click on a square, you don’t have to try and drag it over or move it. It will move itself when you click it.
And if you prefer a jigsaw puzzle, here you go.