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2G'$
Introduction
2G'$ is a simple roulette side bet that began a run at the Gold Coast on October 9, 2020. It is played on double-zero roulette only. The bet pays 350 to 1 if the ball lands in either green number (zero or double-zero) twice in a row after the bet is made.
Rules
As stated in the introduction, 2G'$ wins if the ball lands in a green number (zero or double-zero) twice in a row after the bet is made. Any combination of green numbers is allowed (0-0, 0-00, 00-0, or 00-00). It is offered on double-zero roulette only. Wins pay 350 to 1.
Analysis
The following table shows my analysis of 2G'$ at a win of 350 to 1. It shows the probability of winning is (2/38)^2 = 1 in 361 = 0.277%. The lower right corner shows a house edge of 2.77%.
2G'$
| Event | Pays | Probability | Return |
|---|---|---|---|
| Win | 350 | 0.002770 | 0.969529 |
| Loss | -1 | 0.997230 | -0.997230 |
| Total | 1.000000 | -0.027701 |
It should be emphasized the 2.77% house edge is lower than every other bet in double-zero roulette. If the player tried to accomplish the same thing by betting on the 0-00 combination, which pays 17 to 1, and let all winnings ride one more bet, then he would win 323 to 1.
Gaming literature from the owner of 2G'$ mentions other pays are available from 270 to 350, by tens. The following table shows the house edge of each.
Alternate Pays — Double Zero
| Win | House Edge |
|---|---|
| 270 | 24.93% |
| 280 | 22.16% |
| 290 | 19.39% |
| 300 | 16.62% |
| 310 | 13.85% |
| 320 | 11.08% |
| 330 | 8.31% |
| 340 | 5.54% |
| 350 | 2.77% |
As mentioned above, the player can achieve a win of 323 to 1 by parlaying after a first win. Thus, I would recommend doing that if a win pays 320 or less.
Single Zero Rules
Game literature by the owner of 2G'S also mentions a version for single-zero roulette. The probability of a win in that game is (1/37)*(1/37) = 1 in 1369 = 0.0730%.
The literature says the casino many choose from a win of 1050 to 1350 to 1, by 25's. The following table shows the house edge of each available pay.
Single Zero Version
| Win | House Edge |
|---|---|
| 1,050 | 23.23% |
| 1,075 | 21.40% |
| 1,100 | 19.58% |
| 1,125 | 17.75% |
| 1,150 | 15.92% |
| 1,175 | 14.10% |
| 1,200 | 12.27% |
| 1,225 | 10.45% |
| 1,250 | 8.62% |
| 1,275 | 6.79% |
| 1,300 | 4.97% |
| 1,325 | 3.14% |
| 1,350 | 1.31% |
By parlaying a first win on zero himself, the player can achieve a win for two consecutive zeros of 1,296 to 1. Thus, I would do that rather than accept a win of 1,275 or less.
The astute reader may wonder why the player should accept a win of 1,300, at a house edge of 4.97%, rather than parlay, when the house edge in single-zero roulette is 2.70%. The answer has to do with the way the house edge is defined. If the player parlays, his expected loss between the two bets is the sum of 1/37 = 0.0270 units from the first bet and an average of (1/37)*36*(1/37) = 0.0263 from the possible second bet for a total of 0.0533 units. Divide that by the one-unit original bet and you have a house edge of 5.33% by parlaying, relative to the initial bet.
Triple Zero Rules
There is also a version of 2G'$ for triple-zero roulette. I do not know what is the most common win, but the following return table shows the odds for a win of 150 to 1. The lower right cell shows a house edge of 10.65%.
Triple Zero — Win pay 150.
| Event | Pays | Probability | Return |
|---|---|---|---|
| Win | 150 | 0.005917 | 0.887574 |
| Loss | -1 | 0.994083 | -0.994083 |
| Total | 1.000000 | -0.106509 |
There is a list of how much a win pays, according to the choice of casino management. The following list shows the possible wins available and the house edge for each.
Single Zero Version
| Win | House Edge |
|---|---|
| 130 | 22.49% |
| 135 | 19.53% |
| 140 | 16.57% |
| 145 | 13.61% |
| 150 | 10.65% |
| 155 | 7.69% |
| 160 | 4.73% |
| 165 | 1.78% |
Taxes
Players should also be mindful that by law the casino will issue a W2-G form for a table game win, not counting the return of the original wager, that is both (1) $600 or more and (2) 300 or more times the amount bet.
External Links
- How to 2G'$ -- YouTube video.
- Discussion about 2G'$ in my forum at Wizard of Vegas.