Findings:

• caz (user)
• Cazz (user)
• Grandmaster Flash
• Grandmaster
• Grandmaster Draw
• Nebula Grandmaster
• Derren Brown beats nine grandmasters at chess
• Interview with a Grandmaster
• Grandmaster (user)
• Grandmaster Flash and the Furious Five
• Phantom Grandmaster
• super grandmaster

If you Log in you could create a "Grandmaster Caz" node. If you don't already have an account, you can register here.