Hewn

Rebuild the landscape from its summits and hollows. A daily deduction puzzle.

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Give every square a height

Neighbours differ by one. Squares side by side always differ in height by exactly 1.
▲ summits and ▼ hollows. A summit is higher than all its neighbours, a hollow lower. Every one is marked, and no unmarked square is either.
Sea level is 0. The lowest square on the map sits at height 0.

That's all. Every map has exactly one answer, and you can reach it by reasoning alone, no guessing.

The daily map. One new map each day, the same for everyone, on the web and on iPhone.
Free play. Easy, Medium, Hard and Expert maps whenever you like.
Notes and hints. Pencil in candidates and slopes, and ask for a nudge that explains the next deduction.
The Atlas. Your charted maps, engraved and kept.
Cartographer's Edition. An optional one-time purchase on iPhone: the full daily archive, Grand Surveys, monthly Expeditions, ink and paper styles, and the surveyor's records. It also removes ads. The daily map and free play stay free.