Let me shift my focus for time being from Oğuz Atay Puzzle Contest to US Puzzle Championship. Black Pearl appeared in US Puzzle Championship 2008 and I am sure that this will appear in 2009 championship also.
Rules of Black Pearl Puzzle
Find a single closed loop passing through each of the numbered squares. The path passes through the centers of adjacent squares. When passing through a numbered square, the path must make a 90 degree turn and extends the corresponding number of squares in both directions.
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| Black Pearl: BP1 |
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