Solutions :

Boggle B K N L O F L O P T X T A T R E

3-letter words (1 point): 26

APO; APT; ATT; BOK; BOP; BOT; EXO; FOB; FOP; KOB; KOP; LOT; LOX; NOT; NOX; OFT; OPT; PAT; POT; RET; REX; TAP; TAT; TEX; TON; TOP.

4-letter words (1 point): 16

ATOK; ATOP; BOTA; BOTT; EXON; KNOT; LOTE; NOLL; NOTE; OXER; POTT; TEXT; TOLL; TOLT; TONK; TRET.

5-letter words (2 points): 6

EXTOL; FLOTE; KNOLL; KOFTA; NOTER; OXTER.

6-letter word (3 points): 1

EXTOLL.