The problem we encountered with Cathedral is that there is an easy (once you've found it) first player win, independent of where the neutral cathedral piece is placed by the second player during setup.

The fix (Tom Lehmann and Don Woods):

Do not place the neutral cathedral piece during setup. Instead, the first player places a piece on the empty board. Then, the second player places both their first piece and the neutral cathedral. Play then continues normally.

This produces a much more balanced and interesting game.

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