George R. R. Martin's A Song of Ice and Fire doesn't need an introduction. It is also widely known among fans that Martin drew a lot of inspiration from history, for example the War of the Roses in England.
However, recently, I have been watching the Chinese TV series 三国 / Three Kingdoms (2010), which is based on the fourteenth-century Chinese novel 三国演义 / Romance of the Three Kingdoms by Luo Guanzhong. This novel is based on historical facts (obviously, with some poetic licence), namely the events at the end of the Han dynasty and the subsequent period of the Three Kingdoms.
The parallels between ASOIAF and Romance of the Three Kingdoms are impossible to ignore. In the Chinese novel, Cao Cao is a warlord who combines the ruthlessness of Tywin Lannister with the cunning of Littlefinger. In fact, the Chinese equivalent of "speaking of the devil" is, "speak of Cao Cao, and there he is". Liu Bei is an honourable man, just like Ned Stark, but he manages to survive longer than Cao Cao. His adviser Zhuge Liang is also known 伏龍 or Crouching Dragon and sometimes makes creative use of fire (so there you have your "dragon"). And people see similarities between the Battle of the Red Cliffs and the Battle of Blackwater Bay.
You can find discussion of parallels between the two novels in several places, e.g. The Cultural Exchange Episode 01: Game of Thrones VS Romance of the Three Kingdoms (though some of the parallels sound a bit forced, e.g. between Red Cliff and the Red Keep) and the Reddit thread A comparison of "A Song of Ice and Fire" and "Romance of the Three Kingdoms". Similarities were also briefly mentioned in an answer on SciFi Stack Exchange, where the person who wrote that answer makes the following claim:
Lastly.. Martin admits to being a big fan of the ROTK video game and its sort-of predecessor Bandit Kings of Ancient China.
That statement has no source, so I would like to know when and where George R. R. Martin said that he is a fan of that video game and whether he also read Romance of the Three Kingdoms.