Binary (51,6)-code with minimal distance 24 

[101101101101101101101101101101101101101101101101000]
[011011011011011011011011011011011011011011011011000]
[000111000111000111000111000111000111000111000111000]
[000000111111000000111111000000111111000000111111000]
[000000000000111111111111000000000000111111111111000]
[000000000000000000000000111111111111111111111111000]