Hexagons

Hexagons is a 1923 uncredited puzzle and game, published at Clement Toy Co.

The board is hexagonal holding 18 half-hexagonal pieces,

There is a puzzle named Nine-Hex which is a variation of the 15-puzzle. The player position the board in a given puzzle position. The goal is to keep sliding half-hexes until the initial position above is reached (no rotations are allowed). The text provides a notation that describes many initial positions to solve.

The game is named Hexagons and also starts with an initial puzzle position (where the piece 5 is removed). The game can be won by stalemating the adversary or pairing half hexes, but the ruleset seems unspecified or ambiguous.