Online Puzzle Nurikabe VerUP ! (20→60problems)
◆ Rules

The puzzle is played on a grid, typically rectangular with no standard size. Some cells of the grid start containing numbers. The goal is to determine whether each of the cells of the grid is "black" or "white".
The black cells form "the nurikabe" : they must all be orthogonally contiguous (form a single polyomino), number-free, and contain no 2x2 or larger solid rectangles .
The white cells form "islands" : each number n must be part of an n-omino composed only of white cells. All white cells must belong to exactly one island; islands must have exactly one numbered cell.
Solvers will typically shade in cells they have deduced to be
black and dot (non-numbered) cells deduced to be white.

◆ 10 problems for beginners
   (Size of a cell 5x5 2problems,6x6 3problems,7x7 5problems)

   (Size of a cell 10x10 30problems, 18x10 16problems, 24x14 14problems)



Puzzle,LightUp,Sudoku,SUDOKU,Slitherlink,NumberPlace,Heyawake,CrossSum,Nurikabe,Masyu,Ripple Effect,
Fillomino,Kakuro,Divide by Box,Shooting Games,puzzle games,Killing Games,Adventure Games,Sports Games,
Car Games,Animal Games,War Games,Fighting Games,flying games,Platform Games,stickman games,Defense Games,
Strategy Games,Army Games,Collecting Games,Food Games,3D Games,Racing Games,Simulation Games,RPG Games,
X Games,Classic Games,Arcade Games,Survival Games,Sword Fighting Games,puzzle,Space Games,Fun Games,
Airplane Games,Role Playing Games,water games,Matching Games,war,sim,Upgrade Games,Shockwave Games,
Medieval Games,physics games,Shooting Games/images/fog-side-bg.png