Penderfynodd yr egwyl swyddfa a'r gweithwyr gael ychydig o hwyl, gan chwarae'r hen gêm Tic-tac-toe. Gallwch ymuno a hyd yn oed wahodd ffrind. Gosodwch ddarnau o bapur gydag arwyddion arnynt i wneud cyfres o dri o'ch cymeriadau.
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