How to Play Santa’s Sleigh
Place sleighs onto the grid so that each Santa has one sleigh and each sleigh belongs to one Santa only. The following rules should be observed:
Santa’s sleigh must be in a horizontally or vertically pdiacent block next to the Santa
2) The sleighs must not be horizontally, vertically or diagonally adjacent to each other
3) The total number of sleighs in a row or a column must match the number outside that row or column.