| 摘要 |
A board on which to assemble a jigsaw puzzle. The board is preferably of circular form and fitted with an inner rectangular section bounded by upraised ridges in which section the puzzle is assembled. The outer section of the board is formed with a pair of separated concentric upraised ridges, with a ring-shaped tray loosely fitted on the board between the concentric ridges on which the puzzle pieces may be initially placed in random order. The tray may be rotated so as to bring any desired puzzle piece to the position of the player, without rotating the position of the partially assembled jigsaw puzzle resting in the inner rectangular section. Vertical pegs may be mounted to extend above the tray surface to furnish grip means for manually rotating the tray.
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