Following last week’s Observer crossword problem, it was this Saturday’s Guardian that was afflicted.

First I noticed that some of the word lengths in the clues didn’t match the spaces in the grid; then that the grid wasn’t symmetrical; and finally that some clue numbers didn’t appear in the grid at all. The problem: the right-hand column and the bottom row had been omitted from the puzzle.

Fortunately, there is a symmetry in Guardian grids so it was possibly to draw in the missing squares and have a proper go at Araucaria’s puzzle.