Game
Gefjon's land
Game: divide the ground into rectangular plots, one for each number.
Tap the game to open it fullscreen. On a computer, Esc exits; on a phone, use the ✕ button.
How to play
Gefjon wants to cut the land into plots. Drag from one square to another to mark a rectangle (or use the arrows and Space on both corners). Each rectangle must hold exactly one number, equal to its area. Cover the whole ground. The fourth mistake ends the game.
The story behind it
According to Snorri, Gefjon ploughed a whole island in one night. The plots in the game are made up. Read the story in Gefjon and Zealand: the goddess who ploughed an entire island in one night, with four oxen.