4D Lucky No. - History

number4dp a { text-decoration: under; color: #0059ae; } History Singapore Pools started selling 4D bets in May 1986 on newly introduced computerised gaming systems. This move to utilise1 4D 4D 1.1. THE BASIC IDEA 4D is a simple game of chance. 1. Pick a 4-dit number from 0000 to 9999, e.g. 0138, 1012, 4318, 7766 or 9991. 2.