Chalkline: One Stroke Puzzle

Chalkline is a one-stroke drawing puzzle on a school slate.

Every level is a chalk picture of dots and lines. Put a finger on a dot and draw over every line. Don't lift your finger, and don't go over a line twice.

It starts gently, with a tick, a triangle and the old house you draw without lifting the pen. Then the pictures grow, and you learn where a stroke has to start.

HOW IT PLAYS
• 500 drawings on 25 chalkboards
• Lift too soon and the board is wiped
• Went the wrong way? Go back along the line to rub it out
• Draw a picture clean on the first stroke for three stars
• Later boards add one-way arrows and double lines you draw twice

STUCK?
"Show the way" circles the dot to start from and numbers the next few lines. Ask again to see more.

PICK YOUR BOARD
• School slate: green-black board, chalk white and pastels
• Pavement: pavement chalk on warm grey tarmac
• Kraft paper: white pastel and charcoal on brown paper

No account, no sign-up. Chalkline is free to play and supported by ads.