You're name isn't by any chance Charles - is it?
That was a good 1! LOL
Do you remember Boffins bet?
In short e want to catch same and change, thus bet for 2nd hits on high or low and red or black, that's 2 chips, the other 2 chips were on 1st or 3rd dozen and on 2nd or 3rd column.
Would you consider it HG?
A far cry for me.