Liquorice Lock, also known as Licorice Lock, Liquorice X, Liquorice Cage, X Lock, or Locked Candy is a blocker in Candy Crush Saga. It is somewhat common in the game, and is quite a difficult blocker to get rid of, especially when there are lots of them. The blocker looks like a locked door, with liquorice surrounding the outside of the square and an X-formation over the candy.
Liquorice lock blockers work similar to marmalade in that they have a candy below it. Candies with a liquorice lock over them can't be moved. The blocker can be removed by a special candy effect or by being able to match the candy under the blocker with two other candies of the same colour.
If a candy under this blocker is matched, it will only be considered as "released from captivity", meaning that it will not disappear, but you will still get 60 points. If a match of 4 or more is performed, you will still get the corresponding special candy.
Such a match is only considered as destroying the blocker, and it can be viewed as having the blocker reveal its content. It won't destroy any blockers beside the opened locked candy, nor will it disappear if a special candy is used. Not even a colour bomb. If a candy bomb is inside one of these, it can be very dangerous as it requires two hits to remove the bomb.
In fact, only moon struck, a colour bomb + striped candy combination (if the locked candy is transformed), and the retired toffee tornado can destroy the locked candy in one go, the former two capable of changing the very candy inside, and the latter capable of completely occupying the square.
During Sugar Crush, any locked special candy will shake off the lock and detonate.
Much later, the lock can be seen holding a piece of chocolate, a chocolate spawner, or an magic mixer. In this case, the locked object doesn't work until the lock (or "cage") has been broken by a special candy. Eventually, more types of blockers can be found in locks (such as multilayered icing and bobbers).
However, there was a glitch that if a candy was matched with a special candy on mobile, the special candy would activate. It was fixed later, but this is the reason level 677 was much harder to pass.
Liquorice Locks protect normal candies, although some of them protect candy bombs or chameleon candies. On level 677, striped candies are also seen under liquorice locks.
In level 518 and its Dreamworld counterpart, the locks over the jelly fish (candy bombs in Dreamworld counterpart) function like marmalade rather than locked candies. Level 397 and level 514 used to have similar glitch, but it was fixed. This glitch only happens on web. On mobile, they are just shown as marmalade.
A jelly fish that hits a liquorice lock will not remove a layer of the jelly beneath it. It will only remove the lock.
But if the jelly fish hits a piece of locked chocolate, both the lock and the chocolate will be removed (web version only).
If liquorice lock is destroyed:
On web version, it will disappear.
On mobile version, it will break into pieces.
There is another glitch on mobile v1.60, where, if a formation during cascades is going to make a special candy, but the candy spawning location is chosen on a locked candy, the special candy will not be made immediately, but the released candy will become that special candy, if it is matched later.
Chronologically, this is the first blocker which has never been required as part of a candy order.