SMART CHESS BOARD SYSTEM AND METHOD WITH SITUATIONALLY CONSCIOUS SMART CHESS PIECES
20250367539 ยท 2025-12-04
Inventors
Cpc classification
A63F2003/007
HUMAN NECESSITIES
A63F2003/00646
HUMAN NECESSITIES
International classification
Abstract
A chess board game apparatus (100) and system (200) are disclosed that provides chess pieces that are situationally aware and may change their colours during the game based on certain triggers, manual interventions, player selection, game preferences, AI inputs, strategical manipulations, specific moves or game plays, et cetera with or without impacting the winning probability of either of the players post such a trigger. Thus, the game apparatus (100) and system (200) enable dynamic mid-game switching of chess piece colours and allegiance without altering the fundamental rules of chess. The system (200) incorporates user interface, processing, and communication modules for local or remote play, and may operate in physical, digital, or hybrid modes. The present disclosure also discloses a method (300) implements gameplay monitoring, eligibility assessment, and controlled switching of piece allegiance. A standalone smart chess piece and a control unit executing stored instructions are also disclosed.
Claims
1. A chess board game apparatus (100) comprising: a game board (102) having a plurality of squares; a plurality of chess pieces (104), each chess piece (104) comprising a body (106) formed of a light-transmissive material, the body (106) having at least a portion transparent or translucent so as to permit visual perception of a color change produced by a color-changing module; a communication receiver (112) to receive control signals; a power source; a piece-tracking and identification system integrated into the game board (102); and a control unit (126) housed within or operatively connected to the game board (102), the control unit (126) comprising a microcontroller or processor (128) associated with a plurality of modules, the modules comprising: a trigger detection module (130) to detect a switching trigger event, an eligibility and fairness module (132) to determine switching eligibility of chess pieces (104) based on preset rules and win-probability thresholds, a communication module (134) to transmit control signals to the communication receivers (112) of the chess pieces (104), and a power management module (136) to manage power delivery to the chess pieces (104) and to onboard components of the game board (102), wherein the control unit (126) monitors gameplay, detects a switching trigger event, identifies eligible chess pieces (104) for switching, and transmits control signals to the color-changing modules of the eligible chess pieces (104) to change their color and switch allegiance thereof from a first state indicating allegiance to original player to a second state indicating allegiance to the opponent player during gameplay, in response to one or more predetermined trigger conditions.
2. The chess board game apparatus (100) of claim 1, wherein the color-changing module is selected from an LED, e-ink display, prismatic display, polarized film assembly, electro-mechanical actuator, thermochromic material, photochromic material, electroluminescent material, ferrofluid display, liquid column display, or combinations thereof.
3. The chess board game apparatus (100) of claim 1, wherein the piece-tracking and identification system comprises one or more of: an infrared (IR) blaster, optical sensor, a reed switch, magnet system, an NFC tag reader system, or a pressure sensor system.
4. The chess board game apparatus (100) of claim 1, wherein the switching trigger event is selected from one or more of a manual input, a time-based event, a rule-based condition, a probability-based condition, a move-based condition, an artificial intelligence-based determination, a random luck-based event, or a combination thereof.
5. The chess board game apparatus (100) of claim 1, wherein the manual input for using the switch trigger or the defensive token is provided via a physical button, mouse click, keyboard selection, holographic display, touchscreen interface, voice command, or a connected remote device.
6. The chess board game apparatus (100) of claim 1, wherein the control unit (126) implements a token-based blocking of the switching event mechanism, wherein each player is allocated a predefined number of tokens at the start of a match to prevent an impending piece switch within a predetermined time window after an indication of the switch.
7. The chess board game apparatus (100) of claim 6, wherein the defensive or switch avoid tokens are either replenishable or non-replenishable during a match, optionally transferable between matches in a tournament setting, and optionally available in a digital version of the game based on preset rules agreed between both the players.
8. The chess board game apparatus (100) of claim 1, wherein the eligibility and fairness module (132) permits switching only when the calculated change in win probability for any player does not exceed a predefined threshold agreed upon before gameplay or determined by the rules or fairness engine.
9. A chess board game system (200) comprising: a game board (102) having a plurality of squares; a plurality of chess pieces (104), each comprising a body (106) formed of a light-transmissive material, the body (106) having at least a portion transparent or translucent to permit visual perception of a colour change produced by a colour-changing module, a communication receiver (112) to receive control signals, and a power source; a power source to supply power to at least one of the chess pieces (104) and the game board (102); a piece-tracking and identification system integrated into the game board (102) and selected from an infrared (IR) blaster (116), optical sensor (118) system, reed switch (120), magnet system (122), NFC tag-reader system, pressure sensor (124) system, or combinations thereof; a control unit (126) comprising a microcontroller or processor (128) operatively associated with a trigger detection module (130), an eligibility and fairness module (132), a communication module (134), and a power management module (136), the control unit (126) comprising: a user interface module (202) to set game preferences including switching trigger types, win-probability thresholds, switch event indications and token allocations; a processing module (204) to execute gameplay logic, track the state of the chess board, and implement switching events; a communication interface (206) to enable wired or wireless communication with an external device (208); and a data storage module (210) to store game configurations, player profiles, gameplay history, and switching event logs, wherein the system (200) is operable in a physical mode with tangible chess pieces (104) or a digital mode with virtual chess pieces rendered on a display, and wherein the switching of chess pieces' allegiance is initiated, validated, and executed based on the preset game preferences and detection of a switching trigger event.
10. The chess board game system (200) of claim 9, wherein the processing module (204) incorporates an artificial intelligence engine to predict move outcomes and determine switching trigger events based on probability analysis.
11. The chess board game system (200) of claim 9, wherein the user interface module (202) enables token-based prevention of piece switching, the tokens being limited in number per game and optionally carried forward or purchased in a tournament mode.
12. The chess board game system (200) of claim 9, wherein the system is operable in a hybrid mode where the physical chess board game apparatus (100) is synchronised with a digital display for remote or online gameplay.
13. A method (300) for controlling a chess board game system (100) or a chess board game system (200), the method (300) comprising: providing the game board (102) and chess pieces (104); tracking the location and identity of each chess piece (104) using the piece-tracking and identification system; monitoring gameplay to detect a switching trigger event; determining eligible chess pieces (104) for switching; generating and transmitting control signals to the communication receivers (112) of the eligible chess pieces (104); activating the colour-changing modules of the eligible chess pieces (104) to alter visible allegiance while retaining their positions; and maintaining updated gameplay status for subsequent analytics, playback, or remote synchronization; wherein the method (300) enables dynamic mid-game switching of chess piece allegiance without altering the fundamental rules of chess.
14. The method (300) of claim 13, wherein the switching trigger event is initiated based on a random number, predefined number of moves, elapsed time, or a specific board situation.
15. The method (300) of claim 13, wherein win-probability thresholds are calculated or updated dynamically by an artificial intelligence module.
16. The method (300) of claim 13, wherein the method (300) is computer-implemented or physical board-based or hybrid.
17. A control unit (500) computer compute for a chess board game apparatus (100) or chess board game system (200), the control unit (500) comprising one or more processors (502) and a memory storing instructions which, when executed by the one or more processors (504), cause the control unit (500) to: track, by a piece-tracking and identification system (506) integrated into a game board (102), a location and identity of each chess piece (104); monitor gameplay to detect a switching trigger event; determine chess pieces (104) eligible for switching; generate and transmit control signals to communication receivers (508) of the eligible chess pieces (104); and activate colour-changing modules (510) of the eligible chess pieces (104) to alter a visible allegiance thereof; wherein execution of the instructions enables dynamic mid-game switching of chess piece allegiance without altering fundamental chess rules.
18. A standalone chess piece (600) for a chess board game apparatus (100) or chess board game system (200), the chess piece (600) comprising: a body (602) formed of a light-transmissive material, the body (602) having at least a portion transparent or translucent so as to permit visual perception of a colour change; a colour-changing module (604) disposed within the body (602) and to produce a visible change of allegiance of the chess piece (600) during gameplay; a communication receiver (606) to receive control signals from an external control unit (126); and a power source (608) to supply electrical power to the colour-changing module (604) and the communication receiver (606); conductive contacts at a base portion to receive power from a conductive surface of the game board (102); wherein the chess piece (600) is operable independently of a specific game board and adaptable for pairing with any compatible chess board game apparatus (100) or chess board game system (200) to enable dynamic allegiance or side switching without altering the fundamental rules of chess based on one or more predetermined trigger conditions.
19. The chess piece (600) of claim 18, wherein the colour-changing module (604) produces the visible change of allegiance of the chess piece (600) during gameplay via one or more of an RGB LED array, an e-ink display, a prismatic display, a polarised film assembly, an electromechanical actuator, a thermochromic material, a photochromic material, an electroluminescent panel, a ferrofluid display, a liquid column display, or combinations thereof.
20. The chess piece (600) of claim 18, wherein the chess piece (600) is adapted to operate with physical, virtual or hybrid representations of a chess board game system (200).
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Other objects, features, and advantages of the embodiment will be apparent from the following description when read with reference to the accompanying drawings. In the drawings, wherein like reference numerals denote corresponding parts throughout the several views:
[0028] Referring to
[0029] Referring to
[0030] Referring to
[0031] Referring to
[0032] Referring to
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0033] The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
[0034] The present disclosure relates to an advanced chess board game platform that introduces an additional dimension of controlled unpredictability and strategic depth by allowing chess pieces to visually switch allegiance during an ongoing match, without altering the conventional movement rules of chess. This capability encourages strategic adaptability on the go, player engagement, and innovative gameplay dynamics across physical, digital, and hybrid formats. These betrayal events, or the Caeser's Switch event occurs based on predefined, player-selected or random triggers and introduce controlled unpredictability into traditional chess mechanics. In the board game (100), a white piece changes its colour and turns into a black piece, and vice versa based on certain triggers. Throughout the game, either automatically, or by predefined triggers including such as but not limited to number of moves played, number of pieces left on board, time intervals, AI based, or any such factor, some of the pieces from both sides will change their colours. The disclosure may be embodied as a complete hardware apparatus, a combined hardware-software system, a software-only platform, or as individual smart chess pieces capable of integration into various board configurations.
[0035] In one embodiment, the chess board game apparatus (100) (
[0036] A plurality of chess pieces (104) is provided, details thereof discussed herein after in conjunction with different embodiments in
[0037] The manual input is provided via a physical button, mouse click, keyboard selection, holographic display, touchscreen interface, voice command, or a connected remote device.
[0038] The control unit (126) (
[0039] The chess board game system (200) (
[0040] A communication interface (206) enables wired or wireless data exchange with external devices (208) such as tablets, smartphones, PCs, or cloud servers, supporting local multiplayer, remote play, or tournament hosting. The data storage module (210) stores player profiles, game settings, historical gameplay records, analytics, and switching event logs for review or replay. The system may operate in physical mode with tangible pieces, digital mode with virtual chess pieces displayed on a screen, or hybrid mode wherein a physical board is mirrored on a digital interface for remote viewing or participation.
[0041] In an aspect, the present disclosure discloses a chess board, either physical or digital, where the pieces may be manipulated to change sides and are situationally conscious (100).
[0042] In the present invention, certain pieces change their colour or allegiance (switch from one player's control to the other) while the match or game play is ongoing by switching colour, effectively changing sides. Such betrayal events occur based on predefined or player-selected triggers and introduce controlled and planned unpredictability into traditional chess mechanics. These betrayal events are interchangeably called Caeser's Switch, Backstabber's Switch, Colour Switch or Allegiance Switch.
[0043] At the start of each match, players configure core game settings, including but not limited to the type of switch trigger, which could be time-based, move-based, player-initiated, compute-initiated or random trigger. The player also decides the switching mode of the pieces, that is, whether it happens sequentially or simultaneously, wherein sequential switching would alternate change of sides and colour between the white and the black pieces on the occurrence of every trigger but always just one piece at a time, and simultaneous switching would mean that both the white and the black teams' pieces swap their allegiance at the same time.
[0044] Also, the players may decide whether tokens may be used in a given match and their availability, and whether the match is against another player or a bot.
[0045] The game begins as a standard chess match. Players alternate turns under classical rules. When a betrayal event occurs or a trigger is activated, eligible pieces are highlighted and a timer countdown begins. During this window, either player may use a token to block the switch. If no token is used, the selected piece(s) switch sides and the turn proceeds. The switched pieces are now controlled by their new players. The match continues until checkmate, draw, or resignation. To ensure competitive balance throughout the match, multiple backend mechanisms and logics are employed. These include but not limited to a dynamic win probability calculator on each move and on each switch, wherein the winning probability of both the players is constantly monitored and it is ensured that post the piece's side switch, there is no sudden change in the winning or losing probability of either team.
[0046] The range of winning or losing probability change on any piece switch for either player allowed may be mutually decided by the players before the start of the match. For example, if the players decide or select this threshold to be 20%, any switch of pieces that happens either sequential or simultaneous would be done ensuring that the winning or losing probability change of either player before and after the switch is not more than 20%.
[0047] The system (200) is operable in a hybrid mode where the physical chess board game apparatus (100) is synchronised with a digital display for remote or online gameplay.
[0048] Another embodiment employed to ensure competitive fairness is the eligibility validation logic for each piece, wherein pieces at certain positions on the board, are checked for their switching eligibility, which comprises of numerous sub-logics such as but not limited to their proximity to their king, proximity to the opponent's king, proximity to their starting positions or end squares for conversion of pawns, etc. This allows the system to decide whether the piece is a restricted piece or not. A restricted piece's colour change would affect the game's outcome drastically. Unless and until agreed by both players at the start of the game, the colour switch of restricted pieces would not be implemented during the game play. In such a scenario where colour change of restricted pieces is agreed by both players, the match of chess becomes synonymous to real world scenario of business, war and politics where strategy, luck, chaos and chance; all these elements come together to form a unique and uncontrolled scenario in every iteration of the game play.
[0049] In case there is minimal change in the game's winning percentage, the piece may be considered eligible for a colour switch in the default setting without the restricted piece switch allowed.
[0050] To further maintain competitive balance, the invention optionally provides players with defensive resources to counteract betrayals. The availability of defensive tokens is another measure to ensure that the players have a manual override on the game's unique mechanics of the piece's team switching events. These systems work in tandem to prevent gameplay-breaking shifts while maintaining the integrity of surprise and randomness-based tactics, thus ensuring a controlled unpredictability throughout the game.
[0051] The present invention provides a new dynamic variation of the age-old classic but static game of chess inspired by the real-life scenarios of deceit, deception and practicality. The invention encompasses both physical and digital implementations of Caesar's Chess. It is available to be played on digital interfaces, websites, apps and specialised physical boards using innovative physical chess pieces which have the ability to switch their colours from black to white and vice-versa instantaneously. These chess pieces are able to communicate with the chess board they're placed on, which houses the computational module, piece tracking apparatus, power relays, user interaction interface and other necessary components for the game's proper functionality in the physical format.
[0052] In a nutshell, the present invention a novel twist to chess by allowing pieces to betray their owners under controlled conditions, supported by specialized hardware and software that manage these events. The invention includes the physical components (smart board and pieces), the logical system (control unit and algorithms for triggers and fairness), and the rules and methods of gameplay that together create a balanced yet unpredictable chess experience. This new chess variant brings elements of chance and real-world strategic drama to the game, greatly increasing its excitement and replay value while preserving its intellectual challenge.
[0053] In the computer-implemented method (300) as shown in
[0054] In another embodiment, a standalone smart chess piece (400 or 104) (
[0055] Each chess piece (400) (
[0056] The piece includes a body (402) of light-transmissive material, a colour-changing module (404), a communication receiver (406), and a power source (408). The piece may be used independently with any compatible board or system, enabling incremental upgrades to conventional chess sets. In one scenario, such pieces may be supplied as an aftermarket kit to retrofit traditional boards with the dynamic switching capability.
[0057] In another physical embodiment, multiple concentric cylinders constitute the piece. The outer cylinder features windows on its surface, or through and through cutaways which shows the inner cylinder. The outer cylinder is of a neutral colour such as grey. The inner cylinder is patterned with alternating black and white stripes. In one orientation of the cylinder, the white stripes are visible through the windows of the outer cylinder; when rotated to a specific angle. This gives the piece an appearance of being a white piece. On further rotating either of the cylinders, the black stripes become visible through the windows of the outer cylinder, giving the piece a black appearance. A small motor or an actuator allows for the rotation of the cylinders. thereby enabling a visible switch in the piece's colour.
[0058] In another embodiment, multiple concentric cylinders, each lined with alternating polarized film segments form the chess piece. In the piece's default state, the films are aligned with each other in such an orientation which allows for light to pass through, rendering the cylinder transparent, and in turn giving the piece a light or a white appearance. When the orientation of the cylinders is changed with respect to each other by using an integrated motor or an actuator, the overlapping polarized films block light passing through the otherwise transparent chess piece body, making the piece appear dark or black. This enables the piece to switch between its two-colour states.
[0059] In another embodiment, the chess piece is made of a cylinder made of electrically polarized film. In the default state of the piece, the polarised film allows light to pass through it and gives the piece a transparent appearance, due to which the piece appears to be white. When a specific voltage is applied to the polarised film, the film gets activated and blocks light, turning the piece visually black. This mechanism enables a clear distinction between black and white states of the pieces placed on the board.
[0060] In another embodiment, the chess piece is made of a transparent cylinder or a tube filled with a clear solution. the transparent tube is filled with iron filings or any other dark coloured ferromagnetic material. An electromagnet is positioned at the top of the tube. In the inactive state of the piece, the magnet is powered off and the tube remains clear, all the ferromagnetic material settled at the bottom. When the magnet is powered on, thereby activating the piece, the electromagnet attracts the ferromagnetic material upwards through the liquid solution, visually filling the tube and turning it dark. As long as the electromagnet stays powered, the ferromagnetic material remains suspended throughout the chess piece thereby giving it a starkly different appearance than the deactivated pieces, making the differentiation between the pieces easy.
[0061] In another embodiment, a transparent tube is filled with a solvent such as water, glycol, or glycerin, containing suspended coloured particles. A vibration motion is applied at the base using a vibration motor or an actuator, causing the glitter to disperse and fill the tube, creating a darkened appearance. When the motion stops, the coloured particles settle down at the bottom and the tube becomes clear again, thereby appearing white.
[0062] In another embodiment, a transparent cylinder contains a solvent and coloured particles. A mist maker actuator placed at the base of the cylindrical container agitates the liquid, pushing the coloured particles upward and filling the tube to create a darker appearance. When the mist maker actuator is inactive, the particles settle down at the bottom of the cylindrical container, rendering the tube transparent. When the mist maker actuator is activated, the tube appears darker due to the coloured particles being suspended in the viscous liquid. When the mist maker actuator is inactive, the particles settle down at the bottom of the cylindrical container again, restoring the tube's transparent appearance.
[0063] In another embodiment, the chess piece is coated or filled with thermochromic material, or photochromic material, or electroluminescent ink, or a combination of these materials which allows the piece to change its appearance when subjected to different physical factors such as exposure to UV light, temperature change, et cetera. This chess piece also houses an electronic component at its base such as a heating element, or a UV light source, or a voltage connection. When heated using the heating coil, or exposed to UV light, or given a voltage, the material changes its colour, thereby the chess piece also appears to change its colour either from black to white, or vice versa.
[0064] In another embodiment, a transparent tube runs through the chess piece made of a transparent material, with its one end connected to the base of the piece. The base of the piece has a chamber filled with black liquid. A hydraulic press or bladder system exerts pressure to push the black liquid into the tube, filling it up end to end, thereby giving a black appearance to the piece. When pressure is released, the liquid is drawn back into the chamber, and the tube returns to a transparent state therefore making the chess piece appear white.
[0065] Alternative embodiments may include: (i) an AI engine trained to predict switching impact and adjust triggers dynamically; (ii) a multi-board tournament mode where colour switching occurs across linked games; (iii) a training mode where switches are triggered at low probability to teach adaptability; (iv) integration with online platforms to stream live gameplay with real-time allegiance changes; and (v) themed visual effects in the colour-changing modules for different game modes or tournaments. Manufacturing variations may include sealed waterproof casings for outdoor use, modular battery packs for quick replacement, and customisable LED lighting patterns.
[0066] In operation, the disclosure may be applied to physical, digital, or hybrid chess matches. For example, in a time-based embodiment, the control unit (126) is preconfigured to trigger every ten moves. After a set number of moves, the eligibility and fairness module identifies one rook and one bishop whose switch would keep the win-probability change within the permitted threshold. The communication module sends signals to these pieces, their colour switching apparatus changes from white to black, and players must instantly adjust strategies. In a digital-only embodiment, a virtual board displayed on a mobile device display executes identical logic to alter the on-screen representation of affected pieces, maintaining parity with the physical version of the disclosure.
[0067] At the start of each match, players configure multiple core game settings in either a sequential or a desired manner to define their gameplay experience. These settings include but are not limited to the type of switch trigger, which could be time-based, move-based, player-initiated, or random trigger. The type of switch trigger defines how the Ceaser's Switch event occurs, whether it would be manually initiated by a player at any point during the game, or would it be time based, where after every specific interval of time the switching event occurs.
[0068] The trigger event could also be move based, where the switch event may happen after every set number of moves. The random trigger type generates a combination of random events which triggers the switching event. This random event is calculated on the backend by logics. The compute unit picks up a random event type, which may be a time event, a move event, or a combination of both the events, and then generates random numbers for each. This results in a very random set of trigger events which may be either time based, move based, or a combination of both and the numbers assigned with each event defines its occurrence throughout the game.
[0069] The players may also decide the switching mode of the pieces, that is, whether it happens sequentially or simultaneously. The sequential switching alternates the switching to occur between the two teams, and the simultaneous switching enables the pieces from both the white and the black teams' to switch their allegiance at the same instance.
[0070] The players also decide the token availability throughout the game. Each player is granted a set number of tokens at the beginning of each match (when the token mechanics is enabled). When a Caeser's switch event occurs, the affected piece(s) are highlighted and a countdown timer begins. This countdown window allows the player to observe the board, understand the pieces which are going to change their teams, and take a decision of whether they'd want to use one of the tokens from their limited number of tokens to maycel the piece from changing its colour or not. These tokens may be used to inhibit the Caeser's switch event in case a player is about to lose a critical piece to the other player. In another embodiment, these tokens may also be used to bring back the lost piece to their team, in a way undoing the Caeser's Switch event, based on backend game logics and rules.
[0071] The player interacts with a physical or a digital element on their board or screen, depending upon whether they are playing on a physical board or a digital device to use their token within the countdown timer window to block the switch move. This brings a thrill and risk to the game. The tokens are single-use and may not be recovered once used. If no token is activated within the time window, the betrayal and side switch is executed and the piece switches allegiance. In simultaneous betrayal events, if one player blocks the switch, the entire event is cancelled. When the game is being played on cloud, either by connecting the board to the internet or on their digital devices, the player may save their tokens in their online game wallet to be used in future matches.
[0072] If the user wins a match, they could be awarded with complimentary tokens. If a user loses all their tokens, they may purchase more through the connected online shop by accessing it through their digital devices and logging in using their gaming credentials. Tokens are disabled in player-initiated mode, as betrayal is no longer a surprise but in player's control. Lastly, the player decides whether they would like to play the match against a bot, online, or couch co-op.
[0073] To ensure competitive balance and ensure that the game is fair to both the players, multiple backend logics and mechanisms are employed. These include a win probability calculator, eligibility validation logic for each piece, and the availability of the defence tokens. These systems work in tandem to prevent gameplay-breaking shifts while maintaining the integrity of surprise-based tactics.
[0074] When a betrayal, or a Ceaser's switch is triggered, all potential switching candidates are evaluated using preset eligibility rules. Pieces are selected for switching only if the resulting change affects the win probability by no more than a certain value. If no eligible piece meets this threshold, the system aborts the betrayal and displays a message indicating that no eligible switch is possible at the moment, thereby continuing the game as it is. This threshold of the win probability window is adjustable and customisable. A suitable range to maintain fairness and drama is preferrable. Narrower thresholds, such as 3%, result in fewer or inconsequential switches. Wider thresholds, such as 15%, may drastically alter the game's competitive balance.
[0075] The preset eligibility rules are a set of logics and rules which the game engine follows before initiating a switching event of any piece on the board. This ensures that the game doesn't break and none of its rules are changed from the classic game of chess. When simultaneous two pieces are selected for colour switch, both the pieces need not be of the same type. For example, a white bishop and black knight may be selected for switching. Kings are permanently ineligible to switch sides. Pieces located on their starting rank for first n number of moves are not considered for betrayal, preventing confusion in early-game movements such as double-step pawn advances. Promoted pieces (e.g. a pawn promoted to a queen) are also ineligible to switch. Some pawn specific rules are that the pawn situated on its starting, penultimate or final ranks, or after getting promoted is considered an illegible for switching. Some other logics behind eligibility rules are that once a piece switches, it may not switch again, any piece within a certain proximity to their own king may not switch and if a piece may cause check if flipped, will be considered illegible by the game engine. If the logic doesn't find an eligible piece, it skips the colour change, continuing the game as it is. The kings are exempt from switching under all circumstances. No betrayal event may directly or indirectly result in a check against the king. Squares in close proximity to the king are protected from betrayal to maintain positional safety. The betrayal system is designed to avoid excessive or chaotic reversals. Defensive tokens further ensure that key assets may be protected during high-risk phases of play.
[0076] The game rules of the classic game of chess are maintained throughout the Caeser's chess game. In case of castling, if a rook switches sides during the game, the original side loses the right to castle with that rook. Standard castling conditions remain intact otherwise, and the betrayal mechanic is designed not to interfere with eligibility requirements. In case of en passant, a pawn that has just performed a double-step move becomes ineligible for en passant capture if it subsequently switches sides. Any pending en passant opportunity involving that pawn is cancelled following the betrayal event. In a double switch scenario, that is, simultaneous betrayal events, opposing pieces may switch sides and immediately create tension or capture opportunities. However, the pieces remain in place; only their allegiance is altered. A switched piece that was previously pinned may suddenly expose its former king to attack. For example, a knight betrayal may reveal a check from a bishop. The system checks such scenarios, and tokens may be used to prevent such critical tactical flips. These regular gameplay rules and mechanics ensures that the player is not being subjected to learning any new rules to initiate playing the game, enabling anybody with basic knowledge of the game of chess to play Caeser's Chess as well.
[0077] The computer program product includes a non-transitory machine-readable medium storing instruction that, when executed by one or more processors of the control unit, perform the above method steps. This allows the disclosure to be implemented entirely in software for virtual chess environments, in combination with physical components, or as firmware embedded in dedicated chess hardware.
[0078] The foregoing descriptions of exemplary embodiments of the present disclosure have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the disclosure to the precise forms disclosed, and obviously many modifications and variations are possible in the light of the above teachings. The exemplary embodiments were chosen and described in order to best explain the principles of the disclosure and its practical application, to thereby enable others skilled in the art to best utilize the disclosure and various embodiments with various modifications as are suited to the particular use contemplated.