| 摘要 |
PROBLEM TO BE SOLVED: To determine the number of balls to be lent for a pinball game by utilizing contingency by masking releasably the surface on which display sections displaying figures are arranged, releasing masking materials on some of the display sections and computing the figures of the display sections. SOLUTION: Display sections 1 displaying figures are disposed and connected by lines 2, and the surfaces of the display sections 1 are masked by releasable ink 3. The ink 3 can be scraped off easily by using a coin or the like and rubbing and the figures on the display sections 1 on a lower layer can be exposed, and pin balls of the number of totaling the figures of the exposed display sections 1 are lent out. The number of lending pinballs can be determined by computing on a card by utilizing contingency by the arrangement, and speculation can be provided at the time of lending the balls. |
