After losing the 10th Samsung Cup to Luo Xihe, Lee came back and took the newly made Sibdan Cup against Park Young-Hoon. This was payback to Park, who had beat Lee in the 1st Prices Information Cup. Lee also won the 49th edition of Korea's oldest title, the Guksu. Unusually for him, Lee lost three times in 2006 representing Korea in international tournaments. First in the Nongshim Cup, then in the newly created Kangwon-Land Cup, and finally in the Asian TV Cup. This is a change for Lee, considering he has won 17 international tournaments over the past 14 years. In the final match of the 11th Samsung Cup, Lee lost 0-2 to Chang Hao of China. This was the second year in a row Lee lost the Samsung Cup.