Squared Off

Flip Out (also known as Squared Off, Turtle Roll and Watch Your Step) is a recurring individual challenge that originated in. It has since been used in, and. The challenge requires puzzle solving and analytical strategy.

Rules
Each contestant starts the challenge at the edge of a gameboard comprised of several six-sided tiles (or in its debut season, a grid of square tiles). One at a time, contestants will take one step onto a new tile (turning it over to show a designated color). Contestants are not allowed to step onto a space that has already been used. When a castaway has no more legal moves, they are eliminated from the challenge. Last person standing wins.

Often, additional rules are included, such as certain tiles giving contestants advantages or penalties.

History
The challenge was first seen in for immunity, with contestants competing on a 10x10 square grid. Rudy Boesch outlasted his closest competitor Sean Kenniff to win the challenge, and immunity.

When the challenge reappeared in (under the name Turtle Roll), it was used as the Loved Ones reward, with the contestant's loved ones actually competing in the challenge. The challenge introduced the tiered hexagonal gameboard that has been used in all subsequent uses of this challenge. Additional rules included four tiles were marked with "Skip a Turn" (the loved one who flipped over the tile loses their next turn) and one tile marked "Vote Someone Out" (allowing the loved one to eliminate a rival from the challenge). Furthermore, contestants were only permitted to communicate non-verbally with their loved ones. Paschal's wife Beverly was the first eliminated from the challenge. Daryl (Sean Rector's friend) found the Vote Someone Out tile, and torn on what to do, threw his cap in the air. It landed closest to Leander (Vecepia's husband), and Daryl eliminated him. Ultimately, Kathy Vavrick-O'Brien won the challenge when her son Patrick outlasted the remaining loved ones, allowing him to spend the night at the Soliantu beach.

In, the challenge (called Watch Your Step) was used for individual immunity. An advantage at the challenge was purchased at the Survivor Auction by Danni Boatwright and allowed her to switch positions with another contestant at any stage of the challenge. She used the advantage in the last leg of the game to swap places with Stephenie LaGrossa, allowing Danni to win immunity.

saw the challenge appear again for individual immunity. Early on, Brandon Hantz made moves to eliminate Edna Ma, the target for the next vote, from the challenge instead of winning himself. His attempt to be coy about this strategy angered Edna, but it worked, and allowed Coach Wade to win the challenge, and immunity, by a wide margin.

Trivia

 * This is the first challenge for which an advantage could be purchased at the Survivor Auction. Danni Boatwright bought the advantage in, and subsequently won.
 * The version of the challenge that uses a hexagonal design has always appeared at the Final Six.
 * In Survivor: The Amazon, there was a challenge called Flip Out but it was different that this one.
 * Every person who has won this challenge has appeared in the final episode of their season.
 * Everyone who has won this challenge has competed or been asked to compete on another season.
 * Rudy and Kathy later competed on Survivor: All-Stars, Danni was asked to compete on Survivor: Heroes vs. Villains, but declined the opportunity and Coach has competed on Survivor: Tocantins, Heroes vs Villains, and Survivor: South Pacific.
 * Coach is the only person to win this challenge as a returning player since Rudy and Kathy won this challenge in their first season while Coach won the challenge in his third season.