What is "hidato"

n. An Israeli game in which the player fills in boxes with numbers, attempting to fill the grid with consecutive numbers that connect either horizontally, vertically, or diagonally.

Hidato (, originating from the Hebrew word Hida = Riddle) is a logic puzzle game invented by Dr. Gyora M. Benedek, an Israeli mathematician. The goal of Hidato is to fill the grid with consecutive numbers that connect horizontally, vertically, or diagonally. Numbrix puzzles, created by Marilyn vos Savant, are similar to Hidato except that diagonal moves are not allowed. Jadium puzzles (formerly Snakepit puzzles), created by Jeff Marchant, are a more difficult version of Numbrix with fewer given numbers and have appeared on the Parade magazine web site regularly since 2014. The name Hidato is a registered trademark of Doo-Bee Toys and Games LTD, a company co-founded by Benebek himself. Some publishers use different names for this puzzle such as Number Snake.