Normally used for
online card
games (Hearthstone, Magic the Gathering: Arena, etc), getting
Algorithm'd refers a pattern where the algorithm for randomness works against you because of intentional skews to the 'randomness' aspect' reflecting your account seeding/weighing.
Hearthstone - When there repeatedly find yourself in dominant board states and your opponents randomly generate cards (via the Discover aspect, for example) which perfectly answer your board. The game's algorithm analyzes your board and will generate cards for an opponent which, statistically, are more likely to be impactful rather than generating a completely
random card(s).
Magic the Gathering: Arena - When you are losing consecutive games against different players playing the same
deck and you
change only to find that now your new opponents are playing a
deck which has a high
win-rate against yours yet again. The game's algorithm categorizes decks based on card inclusion and calculates an internal
win % against other decks with different card inclusions and will pair you against
people playing something that is statistically more likely to
beat what you are playing, bypassing MMR and Ranking.
In both cases, in active games, drawing/generating cards repeatedly over multiple games which are ineffective in the current game state is also getting algorithm'd.