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Odd One In
Introduction
Odd One In is a simple card game by 1x2 Gaming. Two cards are dealt and the total taken, where each card is scored as in blackjack, with aces always one point. There are a host of bets to choose from but all of them require the total points to be odd.
Rules
- A single 52-card deck is used.
- Aces count as one point, 2-10 go by pip value, and all face cards are 10 points.
- Play begins with the player making bets on the bets listed below.
- When the player is done, the dealer will deal two cards.
- If the total points are odd then the dealer will pay those bets that win. If the total is even, every bet loses.
Odd One In — List of Bets
| Hand | Pays | Description |
|---|---|---|
| Odd | 1 to 1 | Total points odd |
| Odd -- Single Suit | 30 to 1 | Total points odd and both in the specified suit |
| Odd -- Single Color | 7 to 1 | Total points odd and both in the specified color |
| Odd -- Different Colors | 3 to 1 | Total points odd -- one red and one black |
| Small odd | 3.5 to 1 | Total points odd and 11 or less |
| Large odd | 2.5 to 1 | Total points odd and 13 or more |
| 3 & 5 | 25 to 1 | Total of 3 or 5 |
| 5 & 7 | 15 to 1 | Total of 5 or 7 |
| 7 & 9 | 10 to 1 | Total of 7 or 9 |
| 9 & 11 | 5.5 to 1 | Total of 9 or 11 |
| 11 & 13 | 4 to 1 | Total of 11 or 13 |
| 13 & 15 | 5 to 1 | Total of 13 or 15 |
| 15 & 17 | 6 to 1 | Total of 15 or 17 |
| 17 & 19 | 8 to 1 | Total of 17 or 19 |
| 3 | 75 to 1 | Total of 3 |
| 5 | 35 to 1 | Total of 5 |
| 7 | 25 to 1 | Total of 7 |
| 9 | 18 to 1 | Total of 9 |
| 11 | 9 to 1 | Total of 11 |
| 13 | 10 to 1 | Total of 13 |
| 15 | 12 to 1 | Total of 15 |
| 17 | 15 to 1 | Total of 17 |
| 19 | 18 to 1 | Total of 19 |
Analysis
The following table shows what each bet pays, the number of winning combinations out of 1,326 possible, the probability of winning, and the expected return.
Odd One In — Analysis
| Bet | Pays | Combinations | Probability | Return |
|---|---|---|---|---|
| Odd | 1 | 640 | 0.482655 | -0.034691 |
| Odd -- Single Suit | 30 | 40 | 0.030166 | -0.064857 |
| Odd -- Single Color | 7 | 160 | 0.120664 | -0.034691 |
| Odd -- Different Colors | 3 | 320 | 0.241327 | -0.034691 |
| Small odd | 3.5 | 288 | 0.217195 | -0.022624 |
| Large odd | 2.5 | 352 | 0.265460 | -0.070890 |
| 3 & 5 | 25 | 48 | 0.036199 | -0.058824 |
| 5 & 7 | 15 | 80 | 0.060332 | -0.034691 |
| 7 & 9 | 10 | 112 | 0.084465 | -0.070890 |
| 9 & 11 | 5.5 | 192 | 0.144796 | -0.058824 |
| 11 & 13 | 4 | 240 | 0.180995 | -0.095023 |
| 13 & 15 | 5 | 208 | 0.156863 | -0.058824 |
| 15 & 17 | 6 | 176 | 0.132730 | -0.070890 |
| 17 & 19 | 8 | 144 | 0.108597 | -0.022624 |
| 3 | 75 | 16 | 0.012066 | -0.082956 |
| 5 | 35 | 32 | 0.024133 | -0.131222 |
| 7 | 25 | 48 | 0.036199 | -0.058824 |
| 9 | 18 | 64 | 0.048265 | -0.082956 |
| 11 | 9 | 128 | 0.096531 | -0.034691 |
| 13 | 10 | 112 | 0.084465 | -0.070890 |
| 15 | 12 | 96 | 0.072398 | -0.058824 |
| 17 | 15 | 80 | 0.060332 | -0.034691 |
| 19 | 18 | 64 | 0.048265 | -0.082956 |
Strategy
The lowest house edge is 2.26% on (1) a small odd total and (2) a total of 17 & 19. So my advice is to stick with those bets, if you must play at all.
External Links
- Wizard of Vegas — Discussion about this game.