From the English rules:
bOOleO is a card game which combines strategy card play with the concepts of Boolean logic. Players must race to resolve an initial binary number to a single speicific bit by creating a logic pyramid; this is accomplished through the use of logical gates. A logical gate is a device which performs a Boolean operation on one or more inputs and returning the answer. Inputs and outputs are represneted by bits; either a one or a zero. In bOOleO three of the operations are represented by gates: AND, OR and XOR. The NOT operator is represented as a special card which can negate one of the bits in the initial binary number.