Practice: TWOARR
MARCH17: XENTASK, EXTRAN, BANDMATR
JULY17: NITIKA, CHEFSIGN, CALC, IPCTRAIN, PSHTTR, TWOCOINS, EXPTREE
IOITC182: CHANGNUM, EXACTWAL, COINDENO
ISTS2018: FUNKNOW, TOURNEY, CHOCPAIR, DIGITSUM, POWOFPOW, DECODE
SEPT18A: BSHUFFLE, TABGAME, ANDSQR, PHOTOCOM, STCFOTT, CHEFZERO
LTIME64A: CHEFRES, OPPOSITE, COINPART, MATCH2