ah9p 9g9p18 8g9p1 7g9p 6g9p18
lq8p18 kq8p1 jq8p iq8p18 hq8p1
wz7p1 vz7p uz7p18 tz7p1 sz7p
786p 686p18 586p1 486p 386p18
ii6p18 hi6p1 gi6p fi6p18 ei6p1