Patent US5280913A successfully refreshed from Google Patents.
US5280913A
Expired / Lapsed
US
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Apparatus and method of playing double chess game
Assignee: Individual
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Filing: 1993-02-02
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Granted: 1994-01-25
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Expires: 2013-02-02
Abstract
Abstract A modified chess game for play by two opposing players comprises a game board eight squares wide and sixteen squares deep, foldable at its midsection to create a carrying case for the pieces. Each player has a playing pieces set consisting of two kings, two queens, four rooks, four knights, four bishops and sixteen pawns. The pieces are positioned as in conventional chess, except that each row is doubled. Playing pieces are moved pursuant to conventional movements and rules of capture, except that pawns may advance two spaces at a time as long as they are in their own territory, and must reach the sixteenth row to be exchanged for any playing piece but the king. The game may be played so that a player wins by capturing both of his opponent's kings, or by capturing only one.
Inventors
- 👤 Michael W. Sirk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:11
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00173; A63F3/0023; A63F2250/00; A63F2250/18; A63F2250/183
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
101 words
A modified chess game for two players consisting essentially of a rectangular shaped game board having sixteen rows and eight columns of checkered alternating colored squares, a first set of thirty-two chess pieces comprising a subset of royalty pieces consisting of two kings, two queens, four rooks, four knights and four bishops, and a subset of sixteen pawns, and a second set of thirty-two chess pieces, comprising a subset of royalty pieces consisting of two kings, two queens, four rooks, four knights and four bishops, and a subset of sixteen pawns, said first set being visibly distinguishable from said second set.
Claim 2
Dependent Claim
101 words
A modified chess game for two players consisting essentially of a rectangular shaped game board having sixteen rows and eight columns of checkered alternating colored squares, a first set of thirty-two chess pieces comprising a subset of royalty pieces consisting of two kings, two queens, four rooks, four knights and four bishops, and a subset of sixteen pawns, and a second set of thirty-two chess pieces, comprising a subset of royalty pieces consisting of two kings, two queens, four rooks, four knights and four bishops, and a subset of sixteen pawns, said first set being visibly distinguishable from said second set.
Claim 3
Dependent Claim
24 words
The chess game of claim 1 wherein said board is foldable at its midline so as to create a carrying case for the pieces.
Claim 4
Dependent Claim
27 words
The chess game of claim 1 wherein said board comprises a first section and a second section, substantially similar to said first section, and hingedly mounted thereto.
Claim 5
Dependent Claim
34 words
The chess game of claim 3 wherein the combined thickness of said first section and said second section is no greater than 1/4", and further comprising an audio recording of music or chess-playing instructions.
Claim 6
Dependent Claim
19 words
The chess game of claim 4 wherein said audio recording is retained in a pocket defined in said board.
Claim 7
Dependent Claim
28 words
The chess game of claim 5 wherein said board is foldable at its midline so as to create a carrying case for said pieces and said audio recording.
Claim 8
Dependent Claim
14 words
The chess game of claim 4 wherein said audio recording is a compact disc.
Claim 9
Dependent Claim
28 words
The chess game of claim 1 wherein vertical sides depend from the board so as to define a recess in the underside of each section of the board.
Claim 10
Dependent Claim
41 words
The chess game of claim 4 wherein said recesses defined in the underside of both sections are adapted to receive an insert, constructed of any suitable sponge-like material, defining a plurality of cut-outs shaped to receive the playing pieces during storage.
Claim 11
Dependent Claim
19 words
The chess game of claim 1 and further comprising at least one sheet having perforated outlines of playing pieces.
Claim 12
Dependent Claim
22 words
The chess game of claim 10 wherein said at least one sheet is received in a pocket defined in said game board.
Claim 13
Dependent Claim
30 words
The chess game of claim 1 wherein said first said set is of a first color and said second set is of a second color different from said first color.
Claim 14
Dependent Claim
18 words
The chess game of claim 12, wherein said first color is black and said second color is white.
Claim 15
Independent Claim
133 words
A method of playing chess comprising the steps of: a. providing an enlarged game board including a playing area having sixteen rows and eight columns of checkered alternating colored squares; b. providing a set of chess pieces comprising: a subset of royalty pieces for each player consisting of two kings, two queens, four rooks, four knights and four bishops for each player, and a subset of sixteen pawn pieces for each player; c. positioning each player set to form two royalty rows, as in conventional chess, along the two rows at opposite edges of said playing area and two pawn rows in front of the royalty rows; and d. moving the playing pieces pursuant to conventional movements and rules of capture, with the sequence of moving playing pieces alternating between the two players.
Claim 16
Independent Claim
133 words
A method of playing chess comprising the steps of: a. providing an enlarged game board including a playing area having sixteen rows and eight columns of checkered alternating colored squares; b. providing a set of chess pieces comprising: a subset of royalty pieces for each player consisting of two kings, two queens, four rooks, four knights and four bishops for each player, and a subset of sixteen pawn pieces for each player; c. positioning each player set to form two royalty rows, as in conventional chess, along the two rows at opposite edges of said playing area and two pawn rows in front of the royalty rows; and d. moving the playing pieces pursuant to conventional movements and rules of capture, with the sequence of moving playing pieces alternating between the two players.
Claim 17
Dependent Claim
28 words
The method of playing chess according to claim 14 wherein pawn pieces may advance two spaces at a time as long as they are in their own territory.
Claim 18
Dependent Claim
23 words
The method of playing chess according to claim 15 wherein a player must capture both of the opponent's kings to win the game.
Claim 19
Dependent Claim
24 words
The method of playing chess according to claim 15 wherein a player must capture only one of the opponent's kings to win the game.
Claim 20
Independent Claim
239 words
A method of playing chess comprising the steps of: a. providing an enlarged game board including a playing area having sixteen rows and eight columns of checkered alternating colored squares; b. providing a set of chess pieces comprising: a. subset of royalty pieces for each player consisting of two kings, two queens, four rooks, four knights and four bishops for each player, and a subset of sixteen pawn pieces for each player; c. positioning each player set to form two royalty rows, as in conventional chess, along two rows at opposite edges of said playing area and two pawn rows in front of the royalty rows; d. moving the playing pieces wherein each player in turn moves one of the playing pieces across unoccupied spaces in any direction from one space on the board to another, according to the following restrictions: kings may move only one space per turn, queens may move only five spaces per turn, rooks may move only four spaces per turn, bishops may move only three spaces per turn, knights may move only two spaces per turn, and pawns may move only one space per turn; e. moving the playing pieces wherein any player, during a turn and when desired, may move a playing piece according to said restrictions to a space occupied by an opponent's playing piece and subsequently thereto removing the opponent's piece as an indication that the opponent's piece has been captured.
Claim 21
Independent Claim
239 words
A method of playing chess comprising the steps of: a. providing an enlarged game board including a playing area having sixteen rows and eight columns of checkered alternating colored squares; b. providing a set of chess pieces comprising: a. subset of royalty pieces for each player consisting of two kings, two queens, four rooks, four knights and four bishops for each player, and a subset of sixteen pawn pieces for each player; c. positioning each player set to form two royalty rows, as in conventional chess, along two rows at opposite edges of said playing area and two pawn rows in front of the royalty rows; d. moving the playing pieces wherein each player in turn moves one of the playing pieces across unoccupied spaces in any direction from one space on the board to another, according to the following restrictions: kings may move only one space per turn, queens may move only five spaces per turn, rooks may move only four spaces per turn, bishops may move only three spaces per turn, knights may move only two spaces per turn, and pawns may move only one space per turn; e. moving the playing pieces wherein any player, during a turn and when desired, may move a playing piece according to said restrictions to a space occupied by an opponent's playing piece and subsequently thereto removing the opponent's piece as an indication that the opponent's piece has been captured.
Claim 22
Dependent Claim
16 words
The method of playing chess according to claim 18 wherein knights may move over occupied spaces.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1997-01-24 | 1997-07-26 | 1998-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-24 | 2001-07-26 | 2002-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-24 | 2005-07-26 | 2006-01-25 | $7700.00 | Window Closed / Lapsed |