PE
Worth 4 points before any premium square, and the 34th highest-scoring of 96 — tied with 18 others.
PE extends into 14 three-letter words, which is the 19th most extendable of 96 — tied with 10 others. That is the number worth memorising: a two-letter word is a place to put tiles, but a well-hooked one is a place to put them where the board stays open.
Every hook
- A→APE
- O→OPE
- A→PEA
- C→PEC
- D→PED
- E→PEE
- G→PEG
- H→PEH
- N→PEN
- P→PEP
- R→PER
- S→PES
- T→PET
- W→PEW
Not all of them are equally reachable, which a bare count of 14 hides. PE hooks on 13 distinct letters, and the ones you are likeliest to be holding are E (60% of opening racks), A (49% of opening racks) and O (45% of opening racks). The rarest is W, at 14%.
How often you can actually play it
Out of an opening rack, 7.48% of the time you hold the letters for PE outright, the 44th likeliest of 96 — tied with 8 others. Counting a blank as whichever letter is missing lifts that to 15.19%, though spending one of the two blanks on a two-letter word is rarely the play. Exact hypergeometrics over the 100-tile bag, not a simulation.