Practice: OPPOSITE, JDELAY, XORNEY, WTCH, CHFINTRO, CHFIDEAL, MIXCOLOR, RPD
SEPT17: CHEFSUM, MINPERM, CHEFPDIG
JULY18B: PINS
OCT18B: BITOBYT, CHSERVE, MINDSUM, CCIRCLES, HMAPPY, BBRICKS
LTIME65B: THREEFR, WEIRD2, CLORGIRD
NOV18B: CHFTIRED, CHHAPPY, HMAPPY1, PRDRG
COG2018: COG1803, COG1802, COG1801
JAN19B: HP18, FANCY, DPAIRS, EARTSEQ, MGAME, DIFNEIGH, XYPIZQ
FEB19A: CHEFING, HMAPPY2, ARTBALAN
LTIME70B: TSTROBOT
APRIL19B: STRCH, MAXREM, FENCE