at6d bt6dk ct6dk5 dt6d et6dk

zj7dk 0j7dk5 1j7d 2j7dk 3j7dk5

oa8dk5 pa8d qa8dk ra8dk5 sa8d

d18d e18dk f18dk5 g18d h18dk

2r9dk 3r9dk5 4r9d 5r9dk 6r9dk5