(I don't know what happened there - my message posted itself before I had typed it.)

Does anyone know what is the shortest game of GWG to have been completed here? Game

37398 took only 20 moves, and so may be a candidate.

There is several 20 moves games:

#16360

#17651

#21659

#36468

#37398

Shortest game from 1st league is #15617