Scoring — multiples of 5
Doubles placed vertically. Other tiles horizontally, matching end to end. Every 5 points = 1 point scored.
Example 1 — Alice places 6:6, Bob plays 6:3
Alice places 6:6:
6+6 = 12 — no score
Bob plays 6:3 (horizontal):
—
6+6+3 = 15 → 3 points!
top=6 · bottom=6 (double) · right end=3
Example 2 — 6:6, then 6:4, then 6:1
Alice plays 6:4 on right:
—
6+6+4 = 16 — no score
Bob plays 6:1 on left:
—
—
1 + 4 = 5 → 1 point!
left end=1 · right end=4 (double no longer open)