Shisen-Sho with Dog

You can enjoy "Shisen-Sho with Dog"
by All 9 kinds of Dog background.

You can get each dog background
if you meet following conditions.

BG No.1(Selectable anytime)
BG No.2(Selectable anytime)
BG No.3(Clear 1 time)
BG No.4(Clear 5 times)
BG No.5(Clear 10 times)
BG No.6(Clear 20 times)
BG No.7(Clear within 5 min)
BG No.8(Clear within 4 min)
BG No.9(Clear within 3 min)

(How to do Shisen-Sho)
Let's turn off the same tile,
but there is a limit to the tile to be able to turn off.
A tile to be able to turn off is only the thing
which can tie up by the straight line within 3 length and breadth.