Christmas Lights Out: switch on every light on the tree

How to play

Tap or click a bulb: it switches together with the bulbs above, below, left and right of it – the lit ones go out, the dark ones light up. Light every bulb on the grid to win, in as few moves as you can; „Undo” takes back a move and „Start over” brings back the same grid. Stuck? „Show a hint” puts a gold frame round one bulb worth tapping – every grid here can be solved.

Tip: the order of the taps does not matter, and tapping the same bulb twice is the same as not tapping it at all.

Also useful

• Christmas Four in a Row: red baubles against gold
• Christmas Minesweeper: dodge the lumps of coal in the snow
• Christmas 2048: merge the tiles all the way to Santa
• Christmas Sliding Puzzle Online: slide the picture back together
• Christmas Nonogram Puzzles: online and printable picture logic
• Christmas Sudoku for kids and adults

More on santa.haus

• Christmas quizzesTrivia and emoji puzzles, checked as you play, with sheets to print for teams.
• Christmas bingoa card of its own on each phone, a caller that draws the words, or up to 40 different cards to print.
• Party gamesCharades, “Who am I?” and fifteen one-minute games – played in teams on one phone.
• Advent calendarMake one online and send it: a door a day until Christmas Eve.
• Online Christmas cardPick a picture, write your wishes and send the card as a link. Free, no account.
• Christmas printablesColoring pages, cards, gift wrapping and decorations to cut out – print them at home, free.

Drawing names for gifts too? Secret Santa on santa.haus.