EP3285895B1 - Sudoku board facilitating picking up of the tiles , sudoku kit and method for producing the sudoku board - Google Patents

Sudoku board facilitating picking up of the tiles , sudoku kit and method for producing the sudoku board Download PDF

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Publication number
EP3285895B1
EP3285895B1 EP16720772.9A EP16720772A EP3285895B1 EP 3285895 B1 EP3285895 B1 EP 3285895B1 EP 16720772 A EP16720772 A EP 16720772A EP 3285895 B1 EP3285895 B1 EP 3285895B1
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EP
European Patent Office
Prior art keywords
sudoku
gameboard
grooves
tiles
markings
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EP16720772.9A
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German (de)
English (en)
French (fr)
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EP3285895A1 (en
Inventor
Rosa MORTELMANS
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Memory Games bvba
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Memory Games bvba
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F3/00—Board games; Raffle games
    • A63F3/04—Geographical or like games ; Educational games
    • A63F3/0415—Number games
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F3/00—Board games; Raffle games
    • A63F3/00173—Characteristics of game boards, alone or in relation to supporting structures or playing piece
    • A63F3/00176—Boards having particular shapes, e.g. hexagonal, triangular, circular, irregular
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F3/00—Board games; Raffle games
    • A63F3/00173—Characteristics of game boards, alone or in relation to supporting structures or playing piece
    • A63F3/00261—Details of game boards, e.g. rotatable, slidable or replaceable parts, modular game boards, vertical game boards
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F3/00—Board games; Raffle games
    • A63F3/00173—Characteristics of game boards, alone or in relation to supporting structures or playing piece
    • A63F3/00533—Connection of game board or part of game board to supporting structure
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F3/00—Board games; Raffle games
    • A63F3/00173—Characteristics of game boards, alone or in relation to supporting structures or playing piece
    • A63F3/00176—Boards having particular shapes, e.g. hexagonal, triangular, circular, irregular
    • A63F2003/00182—Four-sided game board
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F3/00—Board games; Raffle games
    • A63F3/00173—Characteristics of game boards, alone or in relation to supporting structures or playing piece
    • A63F3/00261—Details of game boards, e.g. rotatable, slidable or replaceable parts, modular game boards, vertical game boards
    • A63F2003/00264—Details of game boards, e.g. rotatable, slidable or replaceable parts, modular game boards, vertical game boards with rotatable or tiltable parts
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F3/00—Board games; Raffle games
    • A63F3/00173—Characteristics of game boards, alone or in relation to supporting structures or playing piece
    • A63F3/00533—Connection of game board or part of game board to supporting structure
    • A63F2003/00545—Magnetic
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F3/00—Board games; Raffle games
    • A63F3/00697—Playing pieces
    • A63F2003/00747—Playing pieces with particular shapes
    • A63F2003/00757—Planimetric shapes, e.g. disks
    • A63F2003/00772—Rectangular
    • A63F2003/00779—Square
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F3/00—Board games; Raffle games
    • A63F3/00697—Playing pieces
    • A63F2003/00867—The playing piece having two characteristics
    • A63F2003/0087—The characteristics being on the opposite sides of the playing piece
    • A63F2003/00873—The characteristics being on the opposite sides of the playing piece with different colours on the opposite sides
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F3/00—Board games; Raffle games
    • A63F3/04—Geographical or like games ; Educational games
    • A63F3/0415—Number games
    • A63F2003/0418—Number games with a grid, e.g. 'Sudoku'-type games
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F2250/00—Miscellaneous game characteristics
    • A63F2250/48—Miscellaneous game characteristics with special provisions for gripping by hand
    • A63F2250/481—Miscellaneous game characteristics with special provisions for gripping by hand for picking up or for gripping from a cavity, e.g. a recess next to a storing space

Definitions

  • the invention pertains to the technical field of gameboards, specifically for playing Sudoku (in a variety of forms, such as Symboku, irregularly shaped Sudokus, Sudokus that use a larger or smaller range of numbers (mini or maxi Sudoku), Futoshikis, binary puzzles, Kakuros and others). More specifically, the proposed invention allows for an easier placement and more in particular, an easier picking up of the game tiles.
  • the document US 2007/284815 discloses a possible Sudoku board, which however does not allow for an easy tilting of the placed tiles. Instead, the proposed gameboard intends to provide an erasable writing surface whereby the cells of the Sudoku grid are separated from each other by recesses.
  • the purpose of this document as opposed to US 2007/284815 is also to provide a gameboard which allows tilting of tiles that are placed on the board. Not only does the US application not use tiles, it also does not allow for an easy way to remove said tiles, and as such is of no relevance.
  • the document US 1462471 is directed to device for holding cards, and does not relate to puzzle games with tiles as is the case in the invention proposed here. Furthermore, it does not allow for an easy way to pick up placed tiles (amongst others as there is no indication of tiles being used) and also is not easily produced.
  • the document DE 20 2007 003486 U1 describes a gameboard for Sudoku wherein magnets are provided in the cells of the Sudoku grid to hold placed tiles. Again, no steps are made to allow an easy tilting, and furthermore, the proposed invention is not easy to manufacture nor does it even intend to provide an easy to manufacture product.
  • the document JP 2012/100739 discloses a possible Sudoku board as part of a bigger set. While it shows an embodiment wherein a tile can be tilted through a seesaw configuration wherein the tile is at one end pushed down, while it rests on an elevated ridge.
  • the board shows the base principle of tilting tiles in such a way, it is exceedingly hard to manufacture the proposed board due to all of the different recesses and elevations, running in both X and Y directions across the plane of the board. This will disallow a myriad of manufacturing techniques (for instance extrusion is practically impossible) and complicate many other techniques.
  • the applicant solves the aforementioned problems by providing a very straightforward gameboard which can be manufactured with optimal efficiency, speed and at low costs and without the need for expensive machinery. Furthermore, special additions are introduced for improved positioning possibilities.
  • the present invention aims to resolve at least some of the problems mentioned above.
  • the present invention provides a kit comprising an improved gameboard for playing Sudoku by placing and removing Sudoku tiles on and from said gameboard.
  • the gameboard is a substantially planar, preferably square or rectangular, sheet, comprising a top side which is provided with a plurality of elongate, parallel and equidistantially placed grooves extending at least partially across said top side.
  • the grooves have a predetermined depth and width arranged to allow tilting of the Sudoku tiles, preferably up to a minimal tilting angle between the gameboard and the tilted tile of at least 10°. More preferably said minimal tilting angle is at least 30°.
  • the top side of the gameboard is provided with visually discernible markings indicating a grid of cells for placing a Sudoku tile on.
  • Said markings comprise a first set of parallel equidistant lines and a second set of parallel equidistant lines, which second set of lines is perpendicular to the first set of lines.
  • the lines of the first set extend along a first lateral edge of the grooves.
  • the grooves have a second lateral edge opposite to the first lateral edge, which second edge is beveled or chamfered.
  • said beveled or chamfered edge is angled with the plane of the gameboard between 30° and 70°.
  • each of the cells of the grid comprises a magnet or a magnetizable element.
  • Said magnet or magnetizable element is located underneath the surface of the top side of the gameboard or at the surface of the top side of the gameboard, but not underneath or at the grooves.
  • said magnets or magnetizable elements are positioned centrally in the ungrooved part of each cell, referring to the part of the cell not comprising the groove. More preferably, the magnets or magnetizable elements are specifically shaped to attract a second, similarly shaped magnet or magnetizable element when brought in proximity of each other in a specific relative orientation to the magnet or magnetizable element in the gameboard.
  • Preferred shapes are square, rectangular, triangular or polygonal.
  • the invention provides in a number of efficient, fast and cheap methods of manufacturing the gameboard as described in this document.
  • said method comprises following steps:
  • said method comprises following steps:
  • said method comprises following steps:
  • the grooves (or slats) have a second lateral edge which is chamfered or beveled, which allows for an easier tilting of the Sudoku tiles.
  • the method provides in a kit for playing Sudoku, comprising a gameboard as described in this document and a plurality of Sudoku tiles shaped for playing Sudoku on said gameboard.
  • the Sudoku tiles are adapted to allow tilting to at least a predetermined tilting angle when partially pushed into the grooves of the gameboard, preferably whereby said tilting angle is at least 10°, more preferably at least 30°.
  • the gameboard comprises magnets or magnetizable elements in each cell as described in this document, and the Sudoku tiles are provided with matching magnets or magnetizable magnets, removably affixing and correctly positioning (rotationally) the Sudoku tiles on or in a desired cell of the grid when brought into proximity of the magnets of magnetizable element of the gameboard.
  • the present invention concerns an improved gameboard and kit for playing Sudoku and methods for manufacturing said gameboard.
  • the invention provides an improved gameboard for playing Sudoku with Sudoku tiles (by placing and removing these on and off said gameboard).
  • the gameboard is substantially planar, preferably square or rectangular, sheet.
  • Said sheet comprises a top side which is provided with a plurality (preferably 7, 8 or 9) of elongate, parallel (with respect to each other) and equidistant grooves extending (at least partially) across said top side.
  • Said grooves have a predetermined depth and width to allow tilting of the Sudoku tiles, preferably up to a minimal tilting angle of at least 10°, more preferably said minimal tilting angle is at least 30°.
  • the tilting of the Sudoku tiles is executed by pushing part of the tile that is hanging over a groove downward, thereby tipping the opposite end of the tile upwards so it can be easily picked up and removed from the gameboard without disturbing other Sudoku tiles.
  • Said tilting angle can be furthermore also be at least 12°, 14°, 16°, 18°, 20°, 22°, 24°, 26°, 28°, 32°, 34°, 36°, 38°, 40°, 45°, 50°, 60°, 70°, 80°, lower (5°, 6°, 7°, 8°, 9°), higher, or values between the proposed angles.
  • the main advantage of the proposed board is the ease with which Sudoku tiles that have been placed on the board can be picked up when a mistake was made. Without the possibility of tilting the tiles in order to pick them up, removal of tiles can be hard as it can be difficult to pick up a thin and flat object lying on a flat plane, but also as one can very easily disturb other tiles that are already placed. It is still the intention to provide a compact board so allowing wider empty borders between tiles is undesirable, both for practical reasons (bigger board can be impractical to transport or to shelve) as well as for the reason that a bigger board could complicate the solving process due to lack of oversight. Therefore, the grooves are introduced which allow a compact board from which tiles can be easily removed even when other tiles are on the gameboard.
  • the concept of a Sudoku board as opposed to the usual writing down of the solution is furthermore useful due to the advantages of a change of perspective, by making the problem solving process more tangible or allowing the player to visualize the problem in other ways.
  • the gameboard as proposed can be manufactured through several methods which are not available for more complex prior art gameboards. For instance, by simply attaching a number of slats to a flat surface, the grooves can be provided (between the slats) with an extremely limited number of operations and extremely easily obtainable and relatively few building elements. Alternatively, the grooves can be milled into a flat sheet, laser-etched (or other etching techniques), or furthermore the proposed board can be easily extruded as it would have a constant cross-sectional profile. In a further alternative, the design is easy to produce by additive manufacturing (3D printing). Afterwards, markings to delineate the cells of the Sudoku grid can be easily applied to the product. Production costs (both structural as piecewise) are effectively reduced to a minimum by the design of the product.
  • a further advantage of the presented invention is that it provides a great deal of surface visible for the eye on which information can be displayed, and can serve as promotional gifts with commercial information, a company logo or other figures or text.
  • This information can be printed on the actual grid of the gameboard, and/or around said grid on the edges of the gameboard. It is furthermore possible to extend the gameboard somewhat to provide a surface to be used for said information.
  • the top side of the gameboard is provided with visually discernible markings indicating a grid of cells for placing a Sudoku tile on.
  • Said markings comprise a first set of parallel lines and second set of parallel lines perpendicular to said first set of lines.
  • the lines of the first set extend along a first lateral edge of the grooves. This ensures that a groove substantially falls into a single row of cells of the playing grid, thereby ensuring that a tile that has been placed on the board correctly, will have a single edge region of the tile hanging over said groove thus allowing tilting (as opposed to when a tile would hang over a groove only with a central region and be suspended on two opposite edges).
  • the grooves have a second lateral edge (opposite to the first lateral edge, both of which extend along the length of the groove), whereby said second lateral edge is beveled or chamfered.
  • said beveled or chamfered edge is angled with respect to the gameboard itself with an angle comprised between 10° and 70°.
  • Said angle can for instance be at least 12°, 14°, 16°, 18°, 20°, 22°, 24°, 26°, 28°, 30°, 32°, 34°, 36°, 38°, 40°, 42°, 44°, 46°, 48°, 50°, 52°, 54°, 56°, 58°, 60°, 62°, 64°, 66°, 68°, or can be at most 12°, 14°, 16°, 18°, 20°, 22°, 24°, 26°, 28°, 30°, 32°, 34°, 36°, 38°, 40°, 42°, 44°, 46°, 48°, 50°, 52°, 54°, 56°, 58°, 60°, 62°, 64°, 66°, 68°, and possible combinations of the above proposed bounds.
  • a chamfered or beveled edge allows for an easier and more gradual tilting of a tile, and can ensure the tile to be tilted to a desired tilting angle. Furthermore, in many manufacturing techniques (such as milling), more acute (or right) angles are more difficult to provide than more obtuse angles, making beveled and chamfered edges easier to produce.
  • one or more (preferably either all, all but 1 or all but 2) of the lines of the first set are at least partially raised over their substantially entire length with respect to the top side of the gameboard, thereby separating individual rows of the grid. While this does not greatly impede the manufacturing process (at there remains a constant cross-sectional profile), it can however facilitate the placement of the tiles somewhat in one dimension of the plane of the gameboard.
  • the protrusion of the lines of the first set with respect to the surrounding gameboard can be comprised in a range of a few mm, such as 1, 2, 3, 4, 5 mm and values therein between. Furthermore, the width of said protrusion can again fall in the proposed range of a few mm.
  • the grooves have a width which is comprised between one fourth and three fourths of a shortest distance between two neighboring grooves.
  • the grooves Preferably have width which is comprises between one third and two thirds of said shortest distance.
  • the width of the grooves and said shortest distance can furthermore have a maximal ratio of 27.5%, 30%, 32%, 34%, 36%, 38%, 40%, 42%, 44%, 46%, 48%, 50%, 52%, 54%, 56%, 58%, 60%, 62%, 64%, 66%, 68%, 70% and 72.5% (although in theory this can go up to 80%, 85%, 90%, 95% or 100%).
  • the width of the grooves and said shortest distance can furthermore have a minimal ratio of 72.5%, 70%, 68%, 66%, 64%, 62%, 60%, 58%, 56%, 54%, 52%, 50%, 48%, 46%, 44%, 42%, 40%, 38%, 36%, 34%, 32%, 30% and 27.5% (which may go down to 20%, 15%, 10% or 5% in theory).
  • the width of the groove needs to be sufficient to allow a desired tilting angle, but must not be too high to allow for the ungrooved part of the cell to support the tile. Furthermore, it can be argued that the width of the grooves should be optimized to reduce the amount of material necessary for the production of the gameboard.
  • the grooves have a depth and a width, whereby said depth is at least 10%, preferably at least 25%, more preferably at least 33% of said width.
  • This ratio can however depend on other factors as well. Therefore, a range of ratios is suggested of depth to width: 10%, 12.5%, 15%, 17.5%, 20%, 22.5%, 25%, 27.5%, 30%, 32%, 34%, 36%, 38%, 40%, 42%, 44%, 46%, 48%, 50%, 52%, 54%, 56%, 58%, 60%, 62%, 64%, 66%, 68%, 70%, 72%, 74%, 76%, 78%, 80%, 82%, 84%, 86%, 88%, 90%, 95%, 100%, 110%, 120% or more.
  • This ratio can furthermore be dependent on the shape of the tiles and the (relative) dimensions thereof. Generally, a ratio is desired so that the tile can be easily tilted to an angle which allows for easy lifting of the tile. Although this can again be dependent on the player in question and the (relative) dimensions of tile, a practical tilting angle of at least 30° is desirable, which would require a ratio of about 10%-60% between depth and width, preferably about 22%-42% between depth and width.
  • the gameboard can furthermore be provided with anti-skid elements on the bottom surface or other elements, such as an adjustable foot in order to be able to put the gameboard under an angle, which allows a player to use it without having to be bent over the gameboard.
  • anti-skid elements on the bottom surface or other elements, such as an adjustable foot in order to be able to put the gameboard under an angle, which allows a player to use it without having to be bent over the gameboard.
  • each of the cells of the grid comprises a magnet or a magnetizable element.
  • Said magnet or magnetizable element is located underneath or at the surface of the top side of the gameboard, but is not underneath or at the grooves. Most preferably, the magnet or magnetizable element is located centrally in the ungrooved part of the cell. This allows an easy attachment of Sudoku tiles which are themselves provided with a magnet or magnetizable element.
  • the magnets or magnetizable elements of both the gameboard and the tiles are intelligently shaped (square, rectangular, triangular, polygonal ...), this can also ensure a proper positioning of the tile (in the cell center and/or with the text/number/symbol on the tile positioned so it can be read).
  • the tile By not placing the magnet or magnetizable element near the groove or underneath it, the tile can be more easily removed from the gameboard after tilting it, thereby strongly reducing the magnetic interaction between gameboard and tile. The lingering magnetic interaction will be weakened sufficiently to remove the tile from the gameboard without disturbing the gameboard itself this way.
  • the magnets or magnetizable elements can also be a magnetic or magnetizable coating, which could further simplify the production process as it does not require the construction process to introduce certain parts, but can be restricted to a post-construction coating step.
  • the depth of the grooves is comprised between 1.0 mm and 4.0 mm, preferably between 1.5 mm and 3.5 mm, more preferably comprised between 2.0 mm and 2.5 mm.
  • Possible upper and lower bounds for the depth of the grooves are 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2.0 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, 3.0 mm, 3.1 mm, 3.2 mm, 3.3 mm, 3.4 mm, 3.5 mm, 3.6 mm, 3.8 mm, 3.9 mm, 4.0 mm or higher.
  • values therein between are also comprised in the range.
  • the width of the grooves is comprised between 3 mm and 18 mm, preferably between 4 and 14 mm, more preferably between 5 and 12 mm.
  • Possible upper and lower bounds for the width of the grooves can be: 4 mm, 6.5 mm, 7.0 mm, 7.5 mm, 8.0 mm, 8.5 mm, 9.0 mm, 9.5 mm, 10.0 mm, 10.5 mm, 11.0 mm, 11.5 mm, 12.0 mm, 12.5 mm, 13.0 mm, 13.5 mm, 14.0 mm, 14.5 mm, 15.0 mm, 15.5 mm, 16.0 mm, 16.5 mm, 17.0 mm, 17.5 mm, 18.0 mm or higher.
  • values therein between are also comprised in the range.
  • the grooves are distanced from each other over a shortest distance comprised between 15 mm and 30 mm, preferably between 18 mm and 25 mm.
  • Possible upper and lower bounds for said shortest distance are 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, 30 mm, but are not limited thereto and can be higher or lower, such as 8 mm, 10 mm, 12 mm, 14 mm, 32 mm, 34 mm, etc.
  • the gameboard has a maximal thickness comprised between 0.5 cm and 4 cm, preferably between 0.6 cm and 3 cm, more preferably about 0.7 to 1.5 cm.
  • Possible upper and lower bounds for said thickness are 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, 30 mm, 32 mm, 34 mm, 36 mm, 38 mm, 40 mm, but are not limited thereto and can be higher or lower, such as 3 mm, 4 mm, 45 mm, 50 mm, 60 mm, 70 mm, etc.
  • the gameboard comprises PVC, preferably a PVC foamboard, more preferably a closed-cell PVC foamboard and most preferably FOREX®.
  • PVC preferably a PVC foamboard
  • a closed-cell PVC foamboard and most preferably FOREX®.
  • FOREX® especially excels in these characteristics, with a dense closed-cell PVC foam core covered with a durable PVC coating for the top and bottom surface.
  • MDF a type of mineral-organic composite such as Corian®
  • HPL high-pressure laminate
  • Dibond® a type of composite panel
  • each of the grooves extends uninterruptedly across the top side of the gameboard.
  • the gameboard is reinforced at the bottom side in a direction along the bottom side and perpendicular to the grooves, or at the very least not parallel to the grooves.
  • the advantages of having the grooves extend uninterruptedly across the top side of the gameboard lies mainly in the extreme ease of manufacturing, where all possible techniques can be used without restrictions or need for expensive and complex machinery, more manual labor or more intricate and thus more expensive construction elements.
  • the reinforcements can be added during or after the manufacturing process, if necessary at all.
  • the gameboard is manufactured by milling of a flat sheet of material.
  • the manufacturing step of milling is preceded by a manufacturing step wherein said flat sheet is provided with a printed pattern relating to the grid of the gameboard.
  • the design of the gameboard is ideal for such a manufacturing technique as it has a constant cross-sectional profile. This will be discussed further in the document as well.
  • Alternative techniques which share some if not all of the advantages of milling due to the advantageous profile of the board are extrusion, additive manufacturing and 3D printing.
  • the lines of the second set are raised at least partially over their substantially entire length with respect to the top side of the gameboard. Said raised lines thereby separate either individual columns or groups of columns from the grid from each other, and also reinforce the gameboard. Preferably, two of the lines of the second set are thusly raised, thereby separating three equal groups of columns (preferably 3 in each group) of the grid from each other. Most preferably, the gameboard is produced through additive manufacturing.
  • the invention provides a number of methods for manufacturing a gameboard for playing Sudoku.
  • the first of these methods comprises the following steps:
  • said slats have a second lateral edge which is chamfered or beveled (more preferably under angles as proposed in the document).
  • the second of these methods comprises the following steps:
  • said grooves have a second lateral edge which is chamfered or beveled (more preferably under angles as proposed in the document).
  • the third of these methods comprises the following steps:
  • said grooves have a second lateral edge which is chamfered or beveled (more preferably under angles as proposed in the document).
  • the gameboard manufactured with said method is a gameboard furthermore according to one of the embodiments of the gameboard described in this document, with the mentioned advantages.
  • the invention provides a kit for playing Sudoku.
  • Said kit comprises a gameboard according to any one of the proposed embodiments in this document and a plurality of tiles shaped for playing Sudoku on the gameboard, whereby the Sudoku tiles are adapted to allow tilting of at least a predetermined tilting angle when partially pushed into the grooves of the gameboard, preferably whereby the tilting angle is at least 10°, more preferably at least 30°.
  • these tiles have a square top side.
  • the number of tiles will in the case of regular sized Sudoku boards be at least 81 (for other applications, the number of tiles can be easily correctly changed, for instance at least 16, at least 625 or others).
  • additional tiles are preferably be included (in case of loss, or if more tiles are required in different colors, shapes or other distinguishing characteristics to indicate a difference between 'known' tiles and tiles guessed/reasoned by players).
  • the tiles have a top side and a back side.
  • the top side is provided with a number between 1 and 9 in amounts sufficient to play Sudoku (again, this depends on the actual type of puzzle, so symbols, other numbers, etc. are possible as well).
  • These markings can be printed or etched for instance.
  • the back side of the tiles can be different from the top side and be provide with numbers (or others) as well in order to be able to use the same tile to indicate a 'known' and a 'guessed' number.
  • the gameboard can be provided with pinholes in the cells and the Sudoku tiles with pins suitable for being introduced into the pinholes in order to easily affix the Sudoku tiles.
  • the gameboard cells can have pins and the Sudoku tiles can have pinholes.
  • the gameboard of the kit is a gameboard as described in the document, having magnets or magnetizable elements in the cells of the Sudoku grid, while the Sudoku tiles comprise magnets or magnetizable elements as well, thereby enabling magnetic interaction between the gameboard and the tiles, specifically magnetic attraction.
  • This force would not need to be strong as it is the intent that the tiles can be removed easily, but still strong enough to hold the tiles in place and more specifically, affix the tiles so they are affixed correctly in the intended cell (centered and not occupying multiple cells).
  • This can be achieved by having the magnets or magnetizable elements of the gameboard and/or of the tiles shaped and located specifically that they favor one or more relative position with respect to each other.
  • the magnets or magnetizable elements can ensure that the Sudoku tiles are both positioned centrally in the desired cell, but also in a correct orientation (making sure the numbers are all oriented the same and not some sideways or upside down).
  • Possible shapes of the magnets or magnetizable elements can be made to match, for instance triangular, square, rectangular, polygonal, etc. (bearing in mind that the top surface of the element or magnet in question is discussed here).
  • FIG. 1A-B-C describe an embodiment of a gameboard for playing Sudoku by placing and removing Sudoku tiles as described in the document.
  • FIG. 1A shows an isometric view of the gameboard
  • FIG. 1B shows a top view of the gameboard
  • FIG. 1C shows a lateral view of the gameboard along a longitudinal axis of the grooves (1).
  • the gameboard comprises a flat sheet, square in this case.
  • the top side of the gameboard is suited for playing Sudoku with Sudoku tiles, and the bottom is generally flat.
  • the top side is provided with a number of grooves (1), in this case 9, which extend parallel to each other across the entire gameboard and are placed equidistantially.
  • the grooves (1) separate support planes (2) which are meant to support a Sudoku tile that has been placed, while the grooves (1) are of a dimension to allow tilting of said placed tile, by pushing the end of the tile that is extended above the groove (1) downward and into the groove (1), thereby tilting the tile.
  • Possible depths and widths of the grooves and the width of the support plane (2) have been discussed in this document, however, the preferred dimensions are 2 to 2.5 mm for the depth of the grooves, 5 to 12 mm for the width of the grooves and 18 to 25 mm for the width of the support plane (2).
  • the entire board has a thickness between 0.5 cm and 2 cm, preferably about 1 cm.
  • the gameboard is furthermore provided with a first (3) and a second set (4) of markings on the top side, which sets are perpendicular to each other, and indicate the Sudoku grid as known in the art.
  • the markings of the first set (3) are parallel to the grooves (1) and are placed on a first lateral edge of the grooves (1).
  • the markings can differ in thickness, pattern and/or color to separate subgrids (12) (3x3 cells) and/or cells from each other.
  • FIG. 2A and 2B show further embodiment of the gameboard according to the invention, wherein magnets or magnetizable elements (5) are comprised.
  • Said magnets or magnetizable elements (5) are underneath the mentioned support planes (2) or are located at the surface (or can even be a magnetic or magnetizable coating as mentioned).
  • the magnet or magnetizable element (5) of the cell can be placed close to the grooves of the cell, in order to minimalize the necessary force to be exerted on the tile to tilt it (by having a smaller moment by reducing the length of the force arm), or can be placed further away from the grooves, to reduce magnetic forces on the tilted tile by increasing the distance in between.
  • said magnets or magnetizable elements are relatively small compared to a tile or a cell, thus enabling light attachment, but also efficiently adjusting the position of the tile to fit in the intended cell in a desired orientation.
  • the gameboard can furthermore be provided with a plurality of Sudoku tiles (7) as can be seen in FIG. 4A and 4B to provide a kit for playing Sudoku.
  • Said tiles have a top side (8) provided with a marking (10), in this case a number.
  • the tiles are dimensioned in order to match with the cells of the grid of the gameboard, preferably a bit smaller than the cells.
  • the tiles can also have a back side (9) that differs from the front side, in this case in view of the background color, thus allowing the tile to be used as both a 'known' number and a 'guessed' number.
  • the tiles can comprise a magnet or magnetizable element (13) in the tile (or be coated with a magnetic or magnetizable coating) in order to be affixed to the gameboard through magnetic interaction with the gameboard, specifically with a magnet or magnetizable element (5) in the gameboard.
  • a magnet or magnetizable element (13) in the tile is shaped as a triangular prism, as is the magnetizable element (or magnet) (5) in the cells of the gameboard.
  • FIG. 3A and 3B describe a gameboard according to what is described earlier in example 1, without magnets or magnetizable elements this time although these could be easily implemented according to the instructions of this document.
  • the lines of the first set are raised (6) with respect to the rest of the top side of the gameboard. This way, a clear demarcation is present to separate the rows of the grid, which makes placing a tile easier, and disallows interference of tiles from different rows, thereby possible disturbing the game.
  • the gameboard can furthermore be provided with a plurality of Sudoku tiles as can be seen in FIG. 4A and 4B to provide a kit for playing Sudoku.
  • FIG. 5A-B-C-D a method for positioning and removing tiles from the gameboard is shown.
  • FIG. 5A shows a situation from a lateral view in which a first Sudoku tile (7) is present on a gameboard according to previous example 2, as well as a second Sudoku tile.
  • a player can then tilt the second Sudoku tile by exerting a force on the part of the tile that is extended over the groove. By exerting said force, this part of the tile is pushed downwards, thereby pushing the remaining part of the tile upwards as a lever.
  • FIG. 5B shows the same action, on the gameboard according to example 1. Both situations clearly show the ease of tilting and subsequently lifting the tile without disturbing other tiles.
  • FIG. 5C illustrates the placement of the tile, while FIG. 5D shows the removal of it.
  • the fulcrum (11) around which the tile is tilted is clearly illustrated here. It is furthermore obvious in the figures that the tile is somewhat smaller than the cell.

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EP16720772.9A 2015-04-23 2016-04-22 Sudoku board facilitating picking up of the tiles , sudoku kit and method for producing the sudoku board Active EP3285895B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2015/5270A BE1022741B1 (nl) 2015-04-23 2015-04-23 Een verbeterd spelbord voor sudoku
PCT/EP2016/059085 WO2016170159A1 (en) 2015-04-23 2016-04-22 Sudoku board facilitating picking up of the tiles, sudoku kit and method for producing the sudoku board

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US (1) US20180140937A1 (ja)
EP (1) EP3285895B1 (ja)
JP (1) JP2018514289A (ja)
CN (1) CN107683164A (ja)
BE (1) BE1022741B1 (ja)
BR (1) BR112017022707A2 (ja)
CA (1) CA2982889A1 (ja)
WO (1) WO2016170159A1 (ja)

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US10478710B1 (en) * 2018-08-08 2019-11-19 Gregory Donald Paul Magnetic playing cards with interchangeable components

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JPS5910820B2 (ja) * 1981-11-04 1984-03-12 昌徳 米田 盲人用囲碁盤セット
GB2211746B (en) * 1987-11-03 1991-07-31 Avril Margaret Salter A game apparatus
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JPH045879U (ja) * 1990-05-01 1992-01-20
JPH0721089U (ja) * 1993-09-24 1995-04-18 雄治 塩山 盤上ゲーム具
JPH08332259A (ja) * 1995-06-07 1996-12-17 Toshihiro Uchihashi 連接ゲーム用具
JP2000225268A (ja) * 1999-02-06 2000-08-15 Tetsuo Sasabuchi ゲーム用基盤と駒の構造
JP2007068694A (ja) * 2005-09-06 2007-03-22 Tenyo Co Ltd ゲーム装置
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US20100171264A1 (en) * 2008-12-05 2010-07-08 Norbert Louis Zarumba Zudokuz
JP4960420B2 (ja) * 2009-09-21 2012-06-27 麗子 長崎 数字パズルゲームセット
CN201880350U (zh) * 2010-05-15 2011-06-29 厦门瑞铠工业有限公司 一种多功能游戏盘
JP3162580U (ja) * 2010-06-22 2010-09-09 富山 真一郎 ナンバープレース用パズルセット
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JP2013116298A (ja) * 2011-12-01 2013-06-13 Junetsu Ishikawa 磁石式ナンプレゲーム
JP3194312U (ja) * 2014-09-04 2014-11-13 小池　不二 数独用ゲーム器

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JP2018514289A (ja) 2018-06-07
CA2982889A1 (en) 2016-10-27
WO2016170159A1 (en) 2016-10-27
CN107683164A (zh) 2018-02-09
BR112017022707A2 (pt) 2018-10-23
EP3285895A1 (en) 2018-02-28
US20180140937A1 (en) 2018-05-24
BE1022741B1 (nl) 2016-08-25

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