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| -rw-r--r-- | puzzles.but | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/puzzles.but b/puzzles.but index 9791ead..d56d26c 100644 --- a/puzzles.but +++ b/puzzles.but @@ -601,7 +601,8 @@ respectively. \cfg{winhelp-topic}{games.fifteen} 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 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 |