Game pieces and a set of such game pieces

1. A polyomino game piece comprising:

at least two slidable polyomino parts,

at least one of said slidable parts is a polyomino comprising at least two blocks that are permanently attached together in an orthogonal pattern to form the slidable part,

at least a second of said slidable parts is a polyomino comprising at least two blocks that are permanently attached together in an orthogonal pattern or is a single block;

wherein the at least two slidable parts are slidably coupled together to form a game piece in a configuration which may be altered by sliding one slidable part relative to the other to form a different polyomino configuration.

2. A game piece according to claim 1 ,

wherein the coupled slidable parts slide along one side of the blocks with respect to one another in a direction parallel to one of the sides of a block, and

wherein the coupled parts have a first sub-part and second sub-part that are connected together, and

form a groove coinciding with the connection on the side along which the parts of the game piece can be slid with respect to one another, and

said groove retains a sliding coupling part in a slidable way.

3. A game piece according to claim 2 ,

wherein each of the slidable parts is hollow,

the first sub-part is a base and the second sub-part is a cover,

the base and the cover are connected together along their periphery by edges,

and wherein the groove is in the edges.

4. A game piece according to claim 2 ,

wherein the sliding part forms a link between the two slidable parts of the game piece that can slide with respect to one another, and

wherein the sliding coupling part has an I-shaped profile with two parallel flanges that are connected together by a central rib,

whereby the edges of the grooves of the two slidable parts of the game piece that are connected together in a slidable way, are held between the aforementioned parallel flanges of the sliding coupling part.

5. A game piece according to claim 2 ,

wherein the game piece is provided with means which provide a sensible feedback when parts are in an intended position with respect to each other to form a new polyomino configuration, and

wherein the means which provide a sensible feedback when slidable parts are in an intended position with respect to each other are formed by at least one projection on the sliding parts and recesses in the slidable parts.

6. A game piece according to claim 1 , wherein the total number of blocks forming the game piece is five.

7. A game piece according to claim 1 , wherein one of the slidable parts is a single slidable block.

8. A game piece according to claim 1 , wherein a protruding part extends from one side that prevents the game piece from lying on this side.

9. A game piece according to claim 1 , wherein the total number of blocks forming the game piece is six.

10. A game piece according to claim 1 , wherein slidable parts can be moved with respect to one another in such a way that they enable different forms of polyominoes to be formed with a game piece.

11. A game piece according to claim 1 , wherein the game piece only contains two such slidable parts that can be moved with respect to one another.

12. A game piece according to claim 1 , wherein the total number of blocks forming the game piece is four.

13. A game kit comprising a set of game pieces according to claim 1 , and a corresponding game board configured to receive said pieces.

14. A game piece according to claim 1 , wherein the slidable polyomino parts are only slidable with respect to each other in a single plane.

15. A game piece according to claim 1 , wherein the polyomino game piece only extends in one or two, not three orthogonal directions.

16. A game piece according to claim 1 , wherein the slidable polyomino parts are inextricably but slidable connected.