Tasks you have completed will have a checkmark in the box to their left. The yellow bar centered beneath that task will also be filled. This yellow bar acts as your running tally for multi-part tasks: e.g., if you have played a game for half of its required time, the yellow bar will be half full. Any task without a checkmark, or without a full yellow bar, still needs to be completed in order to complete the Challenge and win the trophy and Prize Points.

The example above shows a user that has played "Jewel Quest III" for 30 minutes or longer, but has only played "7 Wonders II" for about 12 minutes (the yellow bar is not quite half full).
If you completed a task but did not receive your checkmark, please visit this entry.
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