Normal rulings obstruct 1.7 million hard unknot diagrams from being max-tb Legendrian fronts while infinitely many smoothly hard max-tb unknot diagrams are constructed with explicit writhe bounds.
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Hard Legendrian unknots
Normal rulings obstruct 1.7 million hard unknot diagrams from being max-tb Legendrian fronts while infinitely many smoothly hard max-tb unknot diagrams are constructed with explicit writhe bounds.