- All puzzle grids in this test are marathon grids, i.e. they are much bigger in size than usual.
- There is no fixed time limit for any puzzle. The challenge for solvers is to solve all of them in least amount of time.
- The test will be open slightly for more than a week, with the idea that everyone can get around to solve all puzzles conveniently.
Each puzzle can be started, solved and submitted independent of others, and in any order, anytime during the contest duration.