Solver

Solver is a deduction and pattern-recognition game where the table itself becomes a collective puzzle. One player takes the role of the Master, who secretly defines a hidden rule using the unique deck of 64 cards (combining 4 numbers, 4 shapes, and 4 colors). The other players, as Investigators, must use logic, creativity, and observation to figure out the rule before anyone else. As the game unfolds, a trail of cards is formed: Cards that follow the rule are added to the main sequence. Cards that break the rule are diverted to the error trail. On their turn, Investigators must play a card and then choose to either: Make a guess about the secret rule, Draw a new card, or Exchange their entire hand (once per game). The round ends when someone correctly identifies the rule or when the 25th card is played. Will you be the first to solve the enigma? —description from the designer