----------------------------------------------------------| -9/10---(b9)-------------7-----------------------------7----| -8(b9)---8----(b9)---7----6----(b9)---6/7---6--------(b9)---6----| -------------(b9)---7---------(b9)---6/7---6----(b9)--(b9)--------| --------------------------------------------(b9)------------| ----------------------------------------------------------| ----------------------------------------------------------| -9/10---(b9)-------------7-----------------------------7----| -8(b9)---8----(b9)---7----6----(b9)---6/7---6--------(b9)---6----| -------------(b9)---7---------(b9)---6/7---6----(b9)--(b9)--------| --------------------------------------------(b9)------------| ----------------------------------------------------------|