This is a classic sudoku game. You can select any one of three grids(4x4, 6x6 or 9x9) and can set difficulty level. The objective is to fill a selected grid with Christmas items so that each column, each row, and each of the respective sub grids that compose the grid contain all of the items without repeating anyone.
Tap the tile and than tap the block in the left panel
Hexa
Rainb
Big H
Bulle
Block
Catap
Parki
1010
Pengu
Crazy
Princ
360 S
Mr Ka
Dog T
Rope
Steam
Color
Gp Sk
Escap
Aircr
Tumul
Insta
Drag
Baske
Gun S
Tom A
Trivi
Frida
Roden
Frogg
Banan
Puppi
Real