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Assuming a sequence of U13L1000-1999, it is possible for a user to create 100 draft games, which will use sequence numbers 1000-1099, then before publishing, a user may create a published game in the same scheduling, which will use the next number in the sequence, 1100. Publishing the pending draft games would retain their original 1000-1099 range of game numbers. Publicly, a gap in the game numbers would appear as 1000-1099 hasn’t been published yet, but this is not a concern.

Examples

PCAHA game numbering system is well defined: