WIFOM (Game) is a game developed by Who and Zaicon via the MafiaScum Site Chat.
The standard version of this game is 2-player, although a 3-player version of this game is playable.
One player will pour the wine; the other player will be the drinker. Turns alternate after every round.
The pourer must first choose whether to poison the drinker or not. Then, the pourer can place either an antidote, some poison, or nothing in each glass (all combinations are allowed, one per glass).
After that, the game can begin. If there is a mod, the pourer should notify the mod of his/her choices at this point.
Typically, the drinker will ask questions to help determine what to drink (if anything). The drinker can choose to drink from neither glass, one glass (the drinker must specify whose glass to drink from), or both glasses.
The drinker wins if he/she is still alive. One dose of antidote will cancel out one dose of poison (being poisoned to start with counts as one dose of poison). However, the antidote by itself is also harmful and will kill the drinker if there is no poison to cancel it out.
If the drinker lives, the drinker gets points equal to the number of wrong choices there were. If the drinker dies, the pourer gets points equal to the number of right choices there were.
Right/wrong choices refer to the different options available to the pourer (drink from no glasses, drink from glass A, drink from glass B, and drink from both glasses). A "right" choice is a choice that allows the drinker to live.
Let's say Player A is the pourer and Player B is the drinker.
Privately, Player A decides to poison Player B and put a dose of antidote into each glass. Once the decision has been made, Player B can start asking questions of the pourer. Eventually, Player B decides to drink from both glasses.
Since Player B has a dose of poison and two doses of antidote in his/her system, he/she dies (one of the antidotes does not cancel out). Player A gets a total of two points because there were two options available to Player B that would have allowed him/her to live (by drinking either glass, but not both).
There are a total of 18 possible combinations for the poison and antidotes (including whether or not the drinker starts poisoned). They are listed below.
|Letter Code||Drinker||Glass A||Glass B||Points for Drinker||Points for Pourer||How to win|
|NAA||Not poisoned||Antidote||Antidote||3||1||Do not drink|
|NAN||Not poisoned||Antidote||Nothing||2||2||Do not drink / Drink B|
|NAP||Not poisoned||Antidote||Poison||2||2||Do not drink / Drink both|
|NNA||Not poisoned||Nothing||Antidote||2||2||Do not drink / Drink A|
|NNN||Not poisoned||Nothing||Nothing||0||-||Any action|
|NNP||Not poisoned||Nothing||Poison||2||2||Do not drink / Drink A|
|NPA||Not poisoned||Poison||Antidote||2||2||Do not drink / Drink both|
|NPN||Not poisoned||Poison||Nothing||2||2||Do not drink / Drink B|
|NPP||Not poisoned||Poison||Poison||3||1||Do not drink|
|PAA||Poisoned||Antidote||Antidote||2||2||Drink A / Drink B|
|PAN||Poisoned||Antidote||Nothing||2||2||Drink A / Drink both|
|PNA||Poisoned||Nothing||Antidote||2||2||Drink B / Drink both|
If we ignore all combinations where one player is guaranteed to win and earn 0 points (and therefore have no reason to be chosen), there are 13 combinations. Of those 13, four of them are effectively duplicates (such as NAA and NPP), leaving us with a total number of 9 unique combinations, listed below:
|Letter Code||Drinker||Glass A||Glass B||Points for Drinker||Points for Pourer||Do not drink||Drink A||Drink B||Drink both|
Four of those nine combinations are won by not drinking anything (those of which the drinker is not poisoned will always be won by not drinking). Four of those nine can be won by drinking Glass A. Four of those nine can be won by drinking Glass B. Three can be won by drinking both glasses.
Note that three of the combinations carry less reward to the pourer and more to the drinker by having only one correct choice, whereas the other six have two correct choices. Statistically both have the same expected value assuming random choice by the drinker, though this only matters after a reasonable number of rounds.