Gray only began playing darts at the age of 18, and within three years had defeated notable players such as three-time world champion John Part.
During gameplay, players advance across the terrain with the goal of defeating the enemy's towers and players.
For example, a player with 300 score can only get carnage by defeating players with 150 or more score.
These engines are able to play a game that, when run on an up-to-date personal computer, can defeat most master players under tournament conditions.
By also defeating other players and the dungeon guardians a player is able to gain experience towards leveling up.
All three factions are playable, with the gameplay involving constructing a base, gathering resources and training armies to defeat other players.
The match also was notable because they had defeated several up-and-coming players en route to the final.
As the player progresses through the game, he gains access to naval vessels and troops which allow him to invade and ultimately to defeat other players.
It has been said that at his peak, Yasunaga was sometimes able to defeat inexperienced young professional players while giving them two-stone handicaps.
He also made it to the men's single semifinals before eventually losing to teammate Kong Linghui, who is skilled in defeating defensive players.