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Mention how old the 15-puzzle is

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For most puzzles, the manual tries to at least mention its origin.
Wikipedia suggests that the precise inventor of the 15-puzzle is a bit
uncertain, but US patent number 207124 definitely describes it in
1878, so "dates from the 1870s" seems pretty solid.
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Ben Harris
2023-02-11 19:35:32 +00:00
parent ad2fb760fc
commit ec84b45ba4
1 changed files with 2 additions and 1 deletions
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@ -601,7 +601,8 @@ respectively.
\cfg{winhelp-topic}{games.fifteen} \cfg{winhelp-topic}{games.fifteen}
The old ones are the best: this is the good old \q{\i{15-puzzle}} The old ones are the best: this is the good old \q{\i{15-puzzle}}
with sliding tiles. You have a 4\by\.4 square grid; 15 squares with sliding tiles, which dates from the 1870s.
You have a 4\by\.4 square grid; 15 squares
contain numbered tiles, and the sixteenth is empty. Your move is to contain numbered tiles, and the sixteenth is empty. Your move is to
choose a tile next to the empty space, and slide it into the space. choose a tile next to the empty space, and slide it into the space.
The aim is to end up with the tiles in numerical order, with the The aim is to end up with the tiles in numerical order, with the