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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
|
arrange tiles in numerical order
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gptkbp:hasMathematicalProperty
|
gptkb:combinatorics
group theory
permutation parity
|
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gptkbp:hasOptimalSolutionLength
|
80 moves (God's number)
|
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gptkbp:hasVariant
|
3x3 (8 Puzzle)
5x5 (24 Puzzle)
larger sliding puzzles
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gptkbp:influenced
|
computer science
|
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gptkbp:inventedBy
|
gptkb:Noyes_Palmer_Chapman
1874
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gptkbp:isSolvable
|
only half of initial positions are solvable
|
|
gptkbp:material
|
gptkb:metal
gptkb:plastic
gptkb: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
|
gptkb:United_States
|
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gptkbp:relatedTo
|
gptkb:sliding_tile_puzzle
8 Puzzle
|
|
gptkbp:size
|
4x4
|
|
gptkbp:socialMedia
|
yes
|
|
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
|
|
https://www.w3.org/2000/01/rdf-schema#label
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The 15 Puzzle
|