Of everything on this site, Rings Master is structurally the closest to Magic Sort. Swap the glass tubes for pegs and the liquid for hoops and you are playing the same game: move one piece at a time, only onto a matching colour or an empty peg, until every peg is a single solid colour.

Because the rules match so exactly, the strategy carries over intact. Keep at least one peg genuinely empty for as long as you can. Do not break a completed stack to buy one convenient move. And when two colours are tangled across three pegs, solve the shorter one first to free the working room.

Where it differs. Rings are stacked by size as well as colour on later levels, which adds a constraint Magic Sort does not have — a large ring cannot sit on a small one. That single rule turns some otherwise trivial boards into genuine problems.

There is a free skip if a level defeats you, though the puzzles are fair enough that you rarely need it.