The first round of the competition consists of constructing all-time-best solutions to the instances in XHSTT-2012. For this part of the competition there are no time or technology restrictions. Submitted solutions should be in the XHSTT format, and are validated by the evaluator HSEval.
Per instance in XHSTT-2012 the best submitted solution is rewarded, if this best solution is better than the one that is originally contributed. In case of ties the time received is decisive.
All can participate to this round, but contributors of instances can not submit solutions to their own instances.