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  2. Cubello - Wikipedia

    en.wikipedia.org/wiki/Cubello

    The objective of the game is to strip the Cubello of cubes by matching four or more of the same color in order to reveal the Cubello's inner core. The player is initially given only a limited number of cubes in a "magazine" to complete the objective in each stage, but more cubes are added in the magazine to the player the more cubes they take ...

  3. Nurikabe (puzzle) - Wikipedia

    en.wikipedia.org/wiki/Nurikabe_(puzzle)

    Example of a moderately difficult 10x9 Nurikabe puzzle. Nurikabe (hiragana: ぬりかべ) is a binary determination puzzle named for Nurikabe, an invisible wall in Japanese folklore that blocks roads and delays foot travel.

  4. Rush Hour (puzzle) - Wikipedia

    en.wikipedia.org/wiki/Rush_Hour_(puzzle)

    Cars and trucks are both one square wide, but cars are two squares long and trucks are three squares long. Vehicles can only be moved along a straight line on the grid; rotation is forbidden. Puzzle cards, each with a level number that indicates the difficulty of the challenge, show the starting positions of cars and trucks.

  5. List coloring - Wikipedia

    en.wikipedia.org/wiki/List_coloring

    The choosability (or list colorability or list chromatic number) ch(G) of a graph G is the least number k such that G is k-choosable. More generally, for a function f assigning a positive integer f(v) to each vertex v, a graph G is f-choosable (or f-list-colorable) if it has a list coloring no matter how one assigns a list of f(v) colors to ...

  6. List of colors: A–F - Wikipedia

    en.wikipedia.org/wiki/List_of_colors:_A–F

    This is an accepted version of this page This is the latest accepted revision, reviewed on 11 January 2025. Colors are an important part of visual arts, fashion, interior design, and many other fields and disciplines. The following is a list of colors. A number of the color swatches below are taken from domain-specific naming schemes such as X11 or HTML4. RGB values are given for each swatch ...

  7. Graph coloring - Wikipedia

    en.wikipedia.org/wiki/Graph_coloring

    The smallest number of colors needed for an edge coloring of a graph G is the chromatic index, or edge chromatic number, χ ′ (G). A Tait coloring is a 3-edge coloring of a cubic graph. The four color theorem is equivalent to the assertion that every planar cubic bridgeless graph admits a Tait coloring.