Solutions :

3-letter words (1 point): 33

ACH; AIN; AIT; ANI; ANT; CAN; CHA; CIT; FIN; HAN; ICH; INN; IWI; LAC; LAH; LIN; NAH; NIL; NIP; NIT; NUN; PIA; PIC; PIN; PIT; PIU; PUN; TIC; TIN; TIP; UNI; WIN; WIT.

4-letter words (1 point): 29

ANTI; CAIN; CANT; CHAI; CHAL; CLAN; FINI; HAIN; HANT; INCH; INIA; LAIC; LAIN; LANT; LICH; LINN; NACH; NAIN; PIAL; PIAN; PICA; PINA; PINT; TICH; TIPI; UNCI; UNIT; WICH; WINN.

5-letter words (2 points): 19

ACINI; ANTIC; CHAIN; CHANT; FINCA; FINCH; HAINT; LAICH; LANCH; LICIT; LINCH; LININ; PICAL; PINCH; PUNCH; TICAL; UNCIA; UNPIN; WINCH.

6-letter words (3 points): 6

FINIAL; INCANT; NIACIN; TINCAL; UNCIAL; UNLICH.

7-letter words (7 points): 3

FINICAL; UNCHAIN; UNCINAL.