| Creative Thinking World Championship: Silver (2007) |
| Creative Thinking World Championship: Silver (2006) |
| Go Beginners' Teaching Session and Tournament: Silver (2006) |
| Creative Thinking World Championship: Bronze (2004) |
| Creative Thinking World Championship: Gold (2003) |
| Creative Thinking World Championship: Bronze (2002) |
| GO 19x19 Beginners' Tournament: Gold (2001) |
| Creative Thinking World Championship: Silver (2000) |
| Creative Thinking World Championship: Silver (1999) |
| Puzzle Solving: Brainteasers: Bronze (1998) |
| Creative Thinking World Championship: Gold (1998) |
| Creative Thinking World Championship: Silver (1997) |
