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gptkbp:instanceOf
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gptkb:puzzle
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gptkbp:alsoKnownAs
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gptkb:Boss_Puzzle
gptkb:Game_of_Fifteen
gptkb:Gem_Puzzle
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gptkbp:category
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gptkb:puzzle
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gptkbp:contains
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one empty space
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gptkbp:goal
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arrange tiles in numerical order
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gptkbp:hasMathematicalProperty
|
group theory
combinatorics
permutation parity
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gptkbp:hasOptimalSolutionLength
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80 moves (God's number)
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gptkbp:hasVariant
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3x3 (8 Puzzle)
5x5 (24 Puzzle)
larger sliding puzzles
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|
https://www.w3.org/2000/01/rdf-schema#label
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The 15 Puzzle
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gptkbp:influenced
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computer science
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gptkbp:inventedBy
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gptkb:Noyes_Palmer_Chapman
1874
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gptkbp:isSolvable
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only half of initial positions are solvable
|
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gptkbp:material
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gptkb:plastic
metal
wood
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gptkbp:mechanismOfAction
|
tiles slide horizontally or vertically
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gptkbp:notableEvent
|
puzzle craze in 1880
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gptkbp:numberOfTiles
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15
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gptkbp:popularizedBy
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gptkb:United_States
|
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gptkbp:relatedTo
|
gptkb:sliding_tile_puzzle
8 Puzzle
|
|
gptkbp:size
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4x4
|
|
gptkbp:socialMedia
|
yes
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gptkbp:usedIn
|
algorithm research
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gptkbp:bfsParent
|
gptkb:Samuel_Jones_Loyd
gptkb:Jack_Loyd
gptkb:Sam_Loyd
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gptkbp:bfsLayer
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8
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