Usually a young individual from the ages of 12 to 24 that
uses a hacked chess UCI to cheat at online chess, thus giving
them a highly inflated ELO rating, while skewing legitimate
players ratings. Their internet ELO rating is usually well
over the master level of 2200, even though their real world,
Over The Board (OTB) rating is typically below 1400.
By cheating unknown individuals over the internet anonymously, proggers give themselves a false sense of accomplishment and gratification. They are selfish losers who only care about winning at any and all costs.
Damn it! That little fucking chess progger checkmated me again in under 30 moves and in only two minutes, twenty seconds (five minute clocks).