Diamonds

Diamonds (ダイヤ, Daiya) is one of the types of games played in the Alice in Borderland series, characterized as intelligence games.

Diamonds games are based on logic, rationality, numbers, math, and probability. These challenges often involve solving a riddle or playing a tabletop game that relies on both luck and strategy, such as blackjack or mahjong. Higher-difficulty Diamonds games tend to be zero-sum and non-cooperative, resulting in only one winner. Some Diamonds challenges also incorporate attributes of Hearts, such as reading the rationality of others and examining their mental strengths and weaknesses.

Details[]

Diamonds games take place indoors and do not involve any physical activity, only intense mental effort. For this reason, many Diamonds games require the participants to remain seated at a square or a round table for the duration of the game, whether strapped to their chair or instructed not to stand up.

A common element in Diamonds games is the use of creative methods of execution, such as being hanged (as seen during the Six of Diamonds game), being dissolved in acid (as seen during the King of Diamonds game), or falling into a black pit through a trapdoor (as seen during the Jack of Diamonds game in the manga). Winning may also grant unconventional prizes, such as the gun Chishiya receives for clearing the Six of Diamonds game.

Another unique feature of Diamonds games is that their tone tends to be formal, and some of their venues appear classy. Examples of such venues include the high-end restaurant that hosts Six of Diamonds and the Supreme Court where King of Diamonds takes place.

List of Known Games[]

Games that appear both in the manga and in the Netflix adaptation:

Four of Diamonds: "Light Bulb" (named only in the Netflix adaptation);
Jack of Diamonds: "Mahjong";
King of Diamonds: "Beauty Contest" (manga); "Balance Scale" (Netflix).

Manga only[]

Games that are only played in the manga:

Six of Diamonds: "Blackjack".

Netflix only[]

Games that are exclusive to the Netflix adaptation:

Queen of Diamonds (minor mention, details not revealed).

Specialties[]

The following characters specialize in Diamonds games:

Trivia[]

Diamonds has the fewest known games, with only five being played in both the manga and Netflix series.