of the boat in which he arrived at the duel with his wakizashi. Musashi came late on purpose in order to psychologically unnerve his opponent, a tactic he had used on previous occasions, such as during his series of duels with the Yoshioka swordsmen. Another version of the legend recounts that when Musashi finally arrived, Sasaki shouted insults at him, but Musashi just smiled. Angered even further, Sasaki leapt into combat, blind with rage. Sasaki attempted his famous "swallow's blade" or "swallow cut", but Musashi's oversized bokken hit Sasaki first, causing him to fall down; before Sasaki could finish his swallow cut, Musashi smashed Sasaki's left rib, puncturing his lungs and killing him. Musashi then hastily retreated to his boat and sailed away. This was Musashi's last fatal duel. Among other things, this conventional account, drawn from the Nitenki, Kensetsu, and Yoshida Seiken's account, has some problems. Kenji Tokitsu discusses a number of obscurities and counterintuitive claims that have been identified in the account by him and previous scholars. Would Musashi only prepare his bokuto while going to the duel site? Could he even have prepared it in time, working the hard wood with his wakizashi? Would that work not have tired him as well? Further, why was the island then renamed after Sasaki, and not Musashi? Other texts completely omit the "late arrival" portion of the story or change the sequence of actions altogether. Harada Mukashi and a few other scholars believe that Sasaki was actually assassinated by Musashi and his students – the Sasaki clan apparently was a political obstacle to Lord Hosokawa, and defeating Sasaki would have been a political setback to his religious and political foes. The debate still rages today as to whether or not Musashi cheated in order to win that fateful duel or merely used the environment to his advantage. Another theory is that Musashi timed the hour of his arrival to match the turning of the tide. He expected to be pursued by Sasaki's supporters in the event of a victory. The tide carried him to the island, then it turned by the time the fight ended. Musashi immediately jumped back in his boat and his flight was thus helped by the tide. Weapon Sasaki's favored weapon during combat was a straight-edged nodachi with a blade-length of over 90 cm (2 feet, 11.5 inches). As a comparison, the average blade length of