[*]In Casual Mode, pieces that can only be selected once will not be removed.
[*]Modified the method to complete Achievement"Shield of Resilience" — Use the Artifact "Shield of Invincibility" to block three times without taking any damage.
[*]Fixed a bug where the Legendary Artifact would drop from level 6 to level 3 after restarting the game.
[*]Fixed a bug where the collection indicator red dot would persistently appear.
[*]After refreshing the selected chess pieces, the same chess pieces will not appear in this round.