HAKO: Klotski Slide Puzzle

The classic Japanese wooden puzzle "Hakoiri-musume" — known worldwide as Klotski or Huarong Dao — now on your phone.

Get the big block to the exit. That is the whole rule. And yet you will sit there, sliding one piece at a time, until the path finally appears.

HOW TO PLAY • Slide the blocks with your finger • Guide the largest block to the EXIT to clear the level • Beat the target move count — retry as often as you like

WHAT'S INSIDE • 20 hand-tuned levels, from a 7-move warm-up to an 83-move monster • Personal best moves and time saved for every level • UNDO any move, any time • A Daily Challenge that changes every day • 6 themes: Wood, Classic, Animals, Food, Space and Ocean

GOOD FOR • A quiet brain teaser on the commute or in a waiting room • Playing with the sound off, anywhere • Offline play — no connection needed

No sign-up, free to play. If you enjoy sliding block puzzles, unblock-style logic games or classic tile puzzles, this one is for you.

How few moves will it take you?