SIDE BETS Spread-Bet Roulette Cammegh
Overview Spread-Bet Roulette is a side bet that makes use of the game’s winning number and a second Bonus Number. The Bonus Number is determined by a combination of the ball speed and two concentric number rings on the Billboard Display. These two numbers, when added together form the Spread-Bet Roulette number. Players are able to see how the Spread-Bet number is selected by watching the table’s Billboard display, which shows the two concentric 0-36 number rings spinning in opposite directions. The Bonus Number is taken from the inner ring which is indexed by the traditional
alternative number spread combinations available subject to operator preference. Since the Spread-Bet number is made by adding together two random 0-36 values, the total range in which it could fall is 0-72, with a probability curve that peaks at 36 (36 being formed by the largest number of combinations) and troughs at 0 and 72 (both of which can only be formed by one combination - 0 and 0, and 36 and 36 respectively).
The use of the seven
betting spots, which cover certain number spreads within this 0 - 72 range, simplifies betting for the
roulette winning number, radially adjacent on the outer ring. When No More Bets occurs, the two rings stop spinning thus placing the respective numbers rings into random alignment. The roulette ball drops, giving a traditional winning number and this number is highlighted on the roulette ring, together with the Bonus Number it is radially adjacent to. These two numbers are added together, the sum of which is the Spread-Bet number, which will be between 0 (roulette 0 + bonus 0) and 72 (roulette 36 + bonus 36).
Table Layout – Single Zero Spread-Bet Roulette adds 7 betting spots to
the standard roulette layout, each representing a number spread. Betting spots are located amongst the outside bets, closest to the players and the remainder of the roulette layout is unchanged. NB. The Spread Bet Roulette buy-ins could be located on the dealer side of the table. The ranges are colour coded to make identifying the winning spread on the layout as easy as possible for the dealer. The set of number spreads above has been selected to give a good balance between odds and house edge, plus they include 0-0 which has the lowest probability of 1 in 1,369 (on a single zero wheel). However there are several
42 AUGUST 2017
players and also allows the operator to customise odds to suit local player preferences.
Billboard Layout & Result Generation The Spread-Bet number result is selected
by the Billboard display with complete transparency. The screen displays two concentric 0-36 number rings, which start spinning in opposite directions after the previous game ends and continue to spin until the moment ‘No More Bets’ event occurs. At the precise moment of ‘No More Bets’, both rings stop spinning and snap into alignment so each number on the inner ‘Bonus Number’ ring lines up with its closest radial neighbour on the outer ring.
Since the time span between the end of the previous game and ‘No More Bets’ of the next game is different each time, this has the effect of putting the concentric
number rings into a random alignment. The traditional game continues as usual until the ball lands in a pocket. As well as dictating the traditional winning roulette number, this result also gives the first half of the Spread-Bet number. This number is highlighted on the outer of the two concentric rings. The aligning number on the inner ‘Bonus Number’ ring is the second half of the Spread-Bet number, which is then formed by adding the two numbers together. The Spread-Bet number is shown in the middle of the rings, alongside the highlighted constituent numbers on the rings themselves, enabling players to clearly see where the winning result came from.
Security Features Because Spread-Bet Roulette generates its
result ‘mechanically’, using elements that are visible to players on the Billboard display, measures have been taken to remove the risk of predictable croupiers and wheel clocking. Since the side bet can potentially include higher value pay-outs than regular roulette, the importance of neutralising this risk is important. To neutralise the risk of wheel clocking and
predictable dealers, several security features have been built into Spread-Bet Roulette: Rings spin at a base speed of 18rpm in either direction, which is fast enough that it takes just 1.5 seconds to go through a complete pocket alignment cycle. Outer ring speed (s) is randomised by adding a value based on the previous winning number (n): s+=(n/36)10rpm Rings are concealed from view at ‘No More
Bets’, so the alignment happens unseen by players. This is done by fading in an image over the top of them on the Billboard display. Underneath the image, the spinning and alignment of the rings happen precisely as described, maintaining the side bet’s integrity while ensuring the game is secure.
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58
