[0001] This invention relates generally to Tangram puzzles, and more particular to a Tangram
game assembly adapted for competitive play, the assembly containing two complete sets
of Tangram pieces and a deck of cards each carrying on its front face a Tangram puzzle
figure and on its rear face the solution thereto.
[0002] Tangram is a puzzle game of ancient Chinese origin. To the extent that it is made
up of interfitting pieces, it is comparable to a jigsaw puzzle. However, jigsaw pieces
can be interfitted in only one way, whereas one may fit together Tangram pieces in
many ways to create a great variety of shapes or patterns.
[0003] A Tangram consists of seven geometric pieces derived from a large square. A Tangram
set is made up of two large triangles, two small triangles and a medium-sized triangle,
plus a small square and a rhomboid. From these pieces the player is able to form figures
that may be geometrical, abstract or representational in form. Thus the player can
create human or animal silhouetted figures in various postures as well as silhouetted
bridges, houses or other architectural configurations.
[0004] Currently available Tangram pieces are die cut or otherwise derived from a rigid,
black plastic panel. In other cases, the plastic pieces may be injection molded. When
these black pieces are fitted together, the junctions therebetween are not apparent.
But if the pieces are placed on a white background and slightly separated, the junctions
therebetween are rendered visible as thin white lines. A number of Tangram books have
been published that contain hundreds of illustrations of different figure puzzles,
any one of which can be created by fitting together the pieces of a single Tangram
set.
[0005] Each figure in the book is illustrated without junction lines between the pieces,
all pieces in the set being used. Hence the player has no way of knowing what arrangement
of interfitting pieces will produce the illustrated figure other than the profile
of the figure which affords a clue to this end. The player, after selecting a figure
for play, then proceeds to fit the Tangram pieces together in an attempt to recreate
the same figure. The book also contains an illustrated solution to each figure, the
solution being the same figure but with the Tangram pieces slightly separated from
each other to expose the junction lines therebetween so that the pieces are individually
defined.
[0006] Thus what is presently being marketed is a package containing a set of Tangram pieces
and a book illustrating different puzzle figures which can be formed from these pieces,
the book also including solution figures. As now marketed, Tangram represents a puzzle
which best lends itself to play by a solitary player. While it is possible for two
players having their own sets to compete in recreating a Tangram figure, this game
has limited play value, particularly since the game would have to be played by consulting
a Tangram book.
[0007] The winner in this competitive game is the player who first solves the Tangram. But
the choice of the Tangram figure to be played is discretionary and not dictated by
the rules of the game. Hence players might disagree on the Tangram figure to be played
or feel that whatever figure is chosen favours one player to the disadvantage of the
other.
[0008] In view of the foregoing, the main object of this invention is to provide a Tangram
game assembly for competitive play in which the choice of the figure to be played
is a matter of chance and not, therefore, subject to dispute.
[0009] According to the invention there is provided a Tangram puzzle game assembly comprising
one or more sets of Tangram pieces each derived from a large square, and printed material
showing Tangram puzzle figures, characterised in that the assembly is arranged for
play by at least two players and includes:
(a) two said sets of Tangram pieces;
(b) a deck of two cards each having printed thereon a Tangram puzzle figure and a
solution thereto; and
(c) a box including a case divided into two compartments, the first housing said two
sets of pieces and the second housing said cards, said box including means to support
a selected card in an upright position at which it can be observed by players.
[0010] A significant advantage of the invention is that it does away with the need for a
Tangram book, the cards containing the various figures serving a dual function; for
each card not only carries an illustration of a Tangram figure and the solution thereto,
but it also acts as a scoring device; for the player who is the first to solve the
Tangram presented by a card is awarded that card whereby the player who accumulates
the greatest number of cards from the deck is the winner.
[0011] Each card may contain several figures which are numbered, the players first throwing
dice or otherwise gambling on the choice of figure to be played.
[0012] The assembly of the invention is compactly packaged and may be mass-produced and
marketed at low cost.
[0013] A removable cover is preferably provided which fits over the case, the cover having
a closed end and an open end. In the storage mode, the cover is fitted over the case
with its closed end overlying the open end, the cover thereby locking in the card
deck. In the playing mode, the cover position is reversed to expose the end of the
card deck to permit withdrawal of cards therefrom one at a time, the cover having
a finger notch adjacent its open end to facilitate such withdrawal. The cover may
include a transverse slot acting as a socket for the withdrawn card to present the
card in an upright position to the players.
[0014] In the playing mode, a card is withdrawn from the deck and placed in the socket with
its front face presented to the players who then race to fit together their Tangram
pieces to recreate the front face figure. The player who first succeeds wins that
card, a win being confirmed by the solution on the rear face. This activity is repeated
with the cards in the deck whereby the player who is awarded the most cards is the
winner of the game. In practice, not all cards in the deck are played, but only a
selected number; for it takes about an hour for two players to play 5 cards.
[0015] Embodiments of the invention are hereafter described with reference to the accompanying
drawings, in which:-
Fig. 1 illustrates the seven basic geometric pieces of a Tangram (four triangles,
a square and a rhomboid);
Fig. 2 is an array of different geometric forms created from the seven pieces;
Fig. 3 is a Tangram players box in accordance with the invention, shown in its storage
mode;
Fig. 4 shows the box with its cover removed;
Fig. 5 is the front face of one of the playing cards in the deck thereof;
Fig. 6 is the rear face of the same card;
Fig. 7 shows the box in its playing mode; and
Fig. 8 is a modified form of playing card.
[0016] Referring now to Fig. 1, there is shown a full set of Tangram pieces derived from
a planar square. The set is composed of two large triangles 10 and 11, two small triangles
12 and 13, a medium-sized triangle 14, a small square 15 and a rhomboid 16.
[0017] As is well known, Tangram pieces may be fitted together to create a wide range of
different geometric or representational forms. In Figs. 2A to 2I, nine geometric Tangram
figures are illustrated with the pieces slightly spaced from each other. Hence one
seeing these figures would know how to recreate the same forms, since the pieces are
distinctly defined. These figures therefore represent Tangram solutions. A Tangram
puzzle of, say, Fig. 2A would have the pieces in abutting relation, thereby erasing
the junction lines, so that the player would have to exercise his visual imagination
to recreate the same figure.
[0018] Referring now to Figs. 3 and 4, there is shown a Tangram game assembly in accordance
with the invention, the assembly comprising two sets of Tangram pieces T
2 and a deck of cards C, both the pieces and cards being housed in a common rectangular
case 17. Case 17 has a closed end wall 18X, the other end 18Y thereof being open.
Case 17 is divided by a partition which in combination with the closed end defines
a square compartment to receive the two sets of Tangram pieces T
2, and in combination with the open end to define a second compartment to accommodate
the deck of cards C.
[0019] The two sets of Tangram pieces in the compartment are in a stack of four superposed
layers, each layer being composed of pieces which form a small square whose area is
one-half the full area of the large square shown in Fig. 1. Hence the height of the
case must be equal to the height of the stack of pieces. Similarly, the number of
cards in the deck is such as to produce a stack of substantially the same height as
the stack of Tangram pieces.
[0020] Fitted snugly over case 17 is a removable cover 19, one end of which is closed and
the other open. In Fig. 3, the case is shown in its storage mode with the open end
of cover 19 aligned with the closed end 18 of the case. In this way, the closed end
of the cover is aligned with the open end of the case to lock in the card compartment.
[0021] Fig. 5 shows the front face of one card 20 from card deck C, and Fig. 6 shows the
rear face thereof. Fig. 5 carries a Tangram puzzle figure, while Fig. 6 shows the
same figure with a slight separation between the pieces, so that this figure is the
solution to the puzzle.
[0022] Fig. 7 shows the case in the playing mode in which the position of cover 19 is reversed
with its open end aligned with the open end 18Y of the case to expose the deck of
cards C. To facilitate withdrawal of cards one at a time, cover 19 is provided with
a finger notch 21 at its open end. When a card is withdrawn, it is placed in an upright
position in a socket formed by a transverse slot 22 in the cover. Thus card 23 socketed
in slot 22 has its front face presented to the players with a Tangram figure puzzle
F, shown. The rear face of this card has the solution to this puzzle.
[0023] In playing, the players who see the puzzle figure on the presented card then simultaneously
proceed with their sets of pieces to recreate the figure as quickly as they can..The
first to succeed, as confirmed by the solution on the rear face, is awarded the card.
This activity is repeated with each withdrawn card. The player who is awarded the
greatest number of cards is the winner.
[0024] In practice, one does not usually play the entire deck, for this would take too long.
Hence only a predetermined number of cards is played, say, 5 or 10 cards. Thus 5 cards
would normally take two players about an hour to play.
[0025] To further complicate the game and enhance its play value, each card in the deck,
such as card 24 in Fig. 8 may contain a group of different Tangram figures on its
front face, such as the figures identified by numerals 1 to 8, the rear face containing
solutions thereto. Then by rolling dice, rotating a pointer on a radially-numbered
dial, or by other chance devices adapted to select a number, a choice of numbered
figure is made. This chance action is alternated from player to player, so that each
gets a turn at the dice. To win a multiple-figure card, the player who succeeds with
the greatest number of figures on the card is awarded the card.
[0026] While there has been shown and described a preferred embodiment of a Tangram game
assembly in accordance with the invention, it will be appreciated that many changes
and modifications may be made therein without, however, departing from the essential
spirit thereof. Thus rather than have each card with a puzzle figure on one face and
a solution figure on the opposite face, the same puzzle figure may be printed on both
faces of the card so that the players may face each other with the box supporting
the card being played at an intermediate position between the two players. In this
instance, the solution figures will appear in a small scale on the lower edge of the
card on either face thereof, the solution figure being obscured when the card is inserted
in the socket of the box to assume an upright position.
1. A Tangram puzzle game assembly comprising one or more sets of Tangram pieces each
derived from a large square, and printed material showing Tangram puzzle figures,
characterised in that the assembly is arranged for play by at least two players and
includes:
(a) two said sets of Tangram pieces (10-16);
(b) a deck of two cards (C) each having printed thereon a Tangram puzzle figure and
a solution thereto; and
(c) a box including a case (17) divided into two compartments, the first housing said
two sets of pieces and the second housing said cards, said box including means (22)
to support a selected card in an upright position at which it can be observed by players.
2. An assembly according to claim 1, wherein said first compartment has a square area
equal to approximately one half the full area of the box whereby said pieces are stacked
therein in four layers.
3. An assembly according to claim 1 or claim 2, wherein said case (17) has an open
end (18Y) and a closed end (18X), the open end exposing the deck in said second compartment,
said box further including a cover (19) fitting over the case and having a closed
end and an open end, the cover in the storage mode having its open end aligned with
the closed end of the case, and in the playing mode having its open end aligned with
the open end of the case to permit withdrawal of the cards.
4. An assembly according to any preceding claim, wherein said cover (19) includes
a finger notch (21) adjacent the open end.
5. An assembly according to any preceding claim, wherein said cover includes a transverse
slot (22) to form a socket for holding a withdrawn card in an upright position.
6. An assembly according to any preceding claim, wherein each card has a Tangram puzzle
figure on one face and a solution figure therefor on the opposite face.
7. An assembly according to any of claims 1 to 5, wherein said cards each have multiple
figures which are selectable by the players.
8. An assembly according to any of claims 1 to 5, wherein each card has on either
face thereof the same Tangram puzzle figure, and on its lower edge a small scale solution
figure.