Complex Hearts is a game invented by Richard Garfield (or at least he gets credit). It is played like normal hearts (the object is to avoid taking hearts and have the lowest score), however the scoring system is different.

- Each heart is worth i points
- The queen of spades is worth 13 points
- the jack of diamonds is worth -10 points
- the ten of clubs multiplies your score by i
- Players scores are the norm of their complex number. Stop when one player's norm is over 2500 (magnitude 50).
- Players shoot the moon by collecting all the hearts and the queen of spades. Each other player then adds/subtracts 13 real points and 13 imaginary points to their scores. Adding or subtracting is selected by choosing the one that hurts your score (gives a higher norm).

See also QuaternianHearts