K, putting in a small raised garden bed for the misses and I can't figure put the correct way to cut this block for the corners. I cut one piece to make a corner, kinda, but it doesn't seem right. Suggestions? I'm scoring with a diamond blade, the cracking with a chisel, no issue there, its the shape I don't understand. The block plant I bought it from doesn't make corner blocks anymore and just told me its easy cut it, there may have been instructions but I figured I knew it all and didn't listen.