Chain See-Saw (チェーンシーソー) is a Third Stage obstacle introduced in SASUKE 27 as the fifth obstacle. The obstacle consisted of two long chains, each with its own pulley mechanism, which were positioned where each end of the chain was measured the same level apart. To clear it, competitors must transfer from the metal ladder positioned before the obstacle, grab the first chain set, then swing out to transfer to the next chain set, before like Jumping Ring previously, swing to grab a wooden ladder that was positioned after the second chain as an intermediary to the next obstacle, which is Bungee Rope Climb.
If the ends of the chain weren't grabbed at the same time, the end of the chain with the most weight distributed would lengthen while the other would shorten, dropping competitors into the water. This was what happened to Hashimoto Kouji in the tournament, the only competitor to fail the obstacle of the three competitors to attempt it. It also almost took out eventual two-time Champion Urushihara Yuuji, but thankfully, he already put his feet on the ladder, so he is able to save himself.
Competitors' Success Rate
- All results based on the TBS broadcast and external information found.