5 virtual matrix 210 b by cpu 20 that is used in conjunction with video screen 100 a shown in fig4 and 5 fig4 shows video screen 100 a before play begins i e no visible positions 120 a have been selected by the player and the shape of the hidden pattern 70 b shown in area 130 fig5 shows the video screen 100 a of fig4 after two visible positions 120 a have been selected by a player first at 1 2 which is a u201c o u201d and second at 4 3 which is an u201c x u201d the numbering 1 through 25 may or may not be displayed the x and y number may or may not be displayed although fig4 and 5 show a video screen 100 a gaming matrix 110 a may be displayed in any convenient manner such as mechanically displayed and need not have visible positions at each coordinate of gaming matrix 110 a it is only important that each visible position 120 a correspond to a grid element 220 b of virtual matrix 210 b in fig3 the hidden pattern 70 b before at or after i e contemporaneously with the start of the game is randomly placed on virtual matrix 210 b by cpu 20 such that each grid element 220 b is comprised of an u201c o u201d indicating there are.