Hello everyone, nice to welcome you on our site, this page even has Level 15 answers. I enjoy it =D
Level 15 - EISRSTS
The answer to this puzzle is:
Words: RESISTS, RESITS, RITES, RESTS, TRIES, SISES, RISES, TIERS, STIRS, STIES, SIRES, TRESS, RESIT, SITS, TIES, TRES, SIRS, ERST, SETS, SEIS, SIRE, RITE, REIS, STIR, IRE, SIS, SER, RES, ITS, SIT, TIE
Bonus words:
RESISTS, RESITS, RITES, RESTS, TRIES, SISES, RISES, TIERS, STIRS, STIES, SIRES, TRESS, RESIT, SITS, TIES, TRES, SIRS, ERST, SETS, SEIS, SIRE, RITE, REIS, STIR, IRE, SIS, SER, RES, ITS, SIT, TIE