fig1 shows a basic embodiment of the invention . here the peripheral part of a display board 1 can be seen . the display board may be made using any of a variety of materials . a maze pattern 2 is displayed and made visible on said display board 1 by electronic means selectively displaying optical display elements forming a grid on said display board 1 . the optical display elements may , for example , be liquid crystal display ( lcd ) elements or light - emitting diode ( led ) elements . the electronic means may include a memory which stores information defining the maze pattern , and means for translating this information into the actual display of the maze pattern . a variety of particular hardware and software means could be used in the said electronic means , within the scope of the invention . while it is obvious that a variety of alternative maze patterns could be displayed , within the scope of the invention , the particular maze pattern illustrated here is that of a garden maze of the british mathematician w . w . rouse ball , as cited in the 2nd scientific american book of mathematical puzzles & amp ; diversions , by martin gardner , published by simon and schuster , new york , 1961 . for this particular maze the starting point is at the location designated 3 and the goal is at the location designated 4 . again , alternative mazes of different sizes and complexity are clearly possible . the physical size of the entire electronic maze game invention can also be varied to a considerable extent , within the scope of the invention . a transparent cover element , on which lines may be marked and erased , may be installed over the grid of optical display elements . the user can then attempt to solve the maze by drawing paths on this transparent cover element . fig2 shows an embodiment of the invention with some additional features . here a memory module 5 is provided which is physically detachable from the body of the electronic maze game invention . note here that any memory in the invention may be a read only memory ( rom ), a random access memory ( ram ), or some other type of memory . any memory in this invention may also store information defining more than one maze pattern . the embodiment of fig2 is also provided with a control panel 6 , which provides a means for user interface with the invention . the control panel may be fitted with one or more buttons , touch sensors , knobs , dials , slide controls , and / or joysticks . preferably a keyboard will be provided on the control panel , with buttons or touch sensors . the control panel may be used by the user to select a given maze pattern for display . another possible use of the control panel involves commanding the display of a position marker 7 . in this embodiment additional optical display elements are provided in the interstitial blocks of the grid , and the position marker 7 is produced by the display of one of these additional optical display elements . now the user may press up / down / left / right &# 34 ; move &# 34 ; buttons which will cause the position marker to effectively move up , down , left , or right , by causing the appropriate adjacent additional optical display element to be displayed in place of the additional optical display element formerly associated with the position marker . electronic means for forbidding movement of the position marker across boundaries of the displayed maze pattern can be provided . therefore in this embodiment the user can attempt to solve the maze by pressing the &# 34 ; move &# 34 ; buttons in some appropriate time sequence ( or by operating a joystick or other control means ) so as to cause the position marker to move through the maze , hopefully from the starting point to the goal . an alternative &# 34 ; move &# 34 ; command may move the position marker , but cause the additional optical display element corresponding to the former position of the position marker to continue to be displayed . in this way a space sequence or visible path of additional optical display elements can be built through the maze . optionally , when the position marker is made to retrace its path , the retraced portion display may be &# 34 ; erased &# 34 ;. several other variations and alternative games may also be implemented using the device invented here . the embodiment of fig2 is finally also provided with a digital display 8 . this display may display the identifying alphanumeric code of the maze pattern currently displayed ; or the number of steps taken or the time elapsed from the start to the finish of the maze solution . one more interesting possible variant of the invention incorporates means for producing a time varying maze pattern display . the maze pattern may be varied in a predetermined manner governed by some algorithm , or in some random manner . in this way an additional element of excitement and difficulty can be added to the solution of the maze . fig3 shows a variety of grids formed by optical display elements , which grids may be used in alternative embodiments of the invention . several different grids may also be superposed in a single embodiment of the invention . all the optical display elements are visible here to more clearly illustrate the grid patterns - note that only selected optical display elements will be visible in any given maze pattern display . note that optical display elements with width to length ratios larger than those shown here may be used in the invention . fig3 a shows a rectangular grid . fig3 b shows a square grid . fig3 c shows a triangular grid . fig3 d shows a hexagonal grid . in each of these four illustrations , one of the optical display elements is designated 9 , and one of the interstitial blocks of the grid is designated 10 . numbering is not applied to all of the optical display elements nor to all of the interstitial blocks of the grids , to keep the illustrations from getting too cluttered . note that any two - dimensional space filling regular polygonal grid pattern may be used in the invention . a variety of other grids may also be used in the invention . the power supply for the invention will preferably be an electric power supply . one or more batteries or househiold ac power may be used . if one or more batteries are used , means for battery recharging may also be provided . while certain preferred embodiments of the invention have been described in detail above , it is to be understood that further modifications and variations can be made within the scope of the invention as defined in the appended claims .
this invention provides an electronic maze game apparatus . the basic invention comprises a display board , optical discrete display elements forming a grid on the display board , and electronic control for the selective display of the optical display elements so that a maze pattern is displayed and made visible on the display board . the maze pattern may be solved by the user directing a position marker through the maze , through control panel inputs . information defining a multiplicity of maze patterns may be stored in a memory , and any of these patterns may be displayed , as directed by the user .