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Black-and-white shading puzzles

In a shading puzzle you decide, square by square, which cells turn black and which stay white. The numbers on the board tell you how many, how far or what shape, and a few rules about how black cells may touch do the rest. Nonogram and Mosaic end in a picture; Nurikabe, Heyawake, Hitori and Kurodoko are classics from the Japanese puzzle magazine Nikoli. You can play all of them here, free, in your browser.

The puzzles

Cella: Heyawake Puzzle

Fill cells inside divided rooms. Every puzzle has exactly one solution.

Kurotto Logic Puzzle: Census

Fill the groups each circle counts. One solution per puzzle.

Tents and Trees: Tentorium

Tents and trees, a logic puzzle

EffigiesNonogram

Nonogram: Effigies

Nonograms: numbers that draw a picture

Mosaic (Fill-a-Pix): Musivum

Mosaic: numbers that count their neighbours

Tapa: Murus

Tapa: build one wall around the numbers

CuneusShakashaka

Shakashaka: Cuneus

Shakashaka: triangles that leave only rectangles

Lucerna: Akari Light Up

Place lamps until every cell is lit. Pure logic — never guessing.

Insula: Nurikabe Puzzle

Form islands in the sea. Pure logic deduction — never guessing.

Sagitta: Masyu Puzzle

One closed loop through every pearl. Pure logic — never guessing.

CornuNurimisaki

Nurimisaki: Cornu

Nurimisaki: a white path with capes

ClassisBattleships

Battleships: Classis

Battleships: find the fleet by its numbers

Takuzu (Binary Puzzle): Bini

Hitori: Solus

Black out the crowd until every number stands alone

ConspectusKurodoko

Kurodoko (Kuromasu): Conspectus

Norinori Logic Puzzle: Duplex

Shade two cells in every region. Every puzzle has exactly one solution.

Other kinds of puzzle