Column 6 has 1 bead. Column 5 has 3 beads. Different depth → blue (≠).
- Column 7 starts, so use Rule 1: compare Column 6 with Column 5, 1 column further back.
- Column 6 has 1 bead. Column 5 has 3 beads. Different depth → blue (≠).
Common table reading watchout: Comparing the wrong columns. Compare Column 6, the one that just finished, with Column 5.