Jedi Trap

A Jedi trap was a plot designed to kill or capture Jedi, often a specific Jedi.

Elements

A successful Jedi trap consisted of four elements:^[1]

An irresistible bait.
Example: Darth Sidious used General Grievous to lure Obi-Wan Kenobi to Utapau.
A remote location, that was easily fortified, with a sharply restricted field of action. It was also preferable for the location to belong to someone else as major damage usually ensued.
Example: Utapau.
A powerful warrior to fight the Jedi. It was also advantageous to have an overwhelming number of troops stationed nearby to ensure that the Jedi could not escape. Having the killer as the bait was an efficient choice as the Jedi would continue to advance, even after they realized the extent of the trap.
Example: General Grievous on Utapau.
Establish a win-win situation. If the Jedi lost, then the plotter succeeded in their attempt. If the Jedi won, then the weaker would-be Jedi killer was removed and thus saved the plotter the trouble of removing them later. It was also possible to have a third win, by which the Jedi, by answering the trap at all was prevented from interfering elsewhere.
Example: Obi-Wan Kenobi was sent to Utapau while Sidious turned Anakin Skywalker to the dark side.