Wizard Jewels

For magicians, gems are of purely scientific interest, and not as a means of enrichment.
Crystals are used in casting spells, making potions and potions.
Stones are capable of storing energy and holding it until needed.
Our wizard in the game Wizard Jewels uses gems as guardians.
He invented and created an unusual safe; in order to open it, you will need to deliver the key to the keyhole.
To do this, you must first remove the metal substrate under the pebbles, removing three or more identical ones, and when the key and the lock appear, connect them.
Three methods can be used to remove crystals: removing groups, building lines by changing the locations of the elements and creating a chain.