GO
Worth 3 points before any premium square, and the 44th lowest-scoring of 96 — tied with 7 others.
GO extends into 10 three-letter words, which is the 45th most extendable of 96 — tied with 8 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→AGO
- E→EGO
- A→GOA
- B→GOB
- D→GOD
- O→GOO
- R→GOR
- T→GOT
- X→GOX
- Y→GOY
Not all of them are equally reachable, which a bare count of 10 hides. GO hooks on 9 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 X, at 7%.
How often you can actually play it
Out of an opening rack, 8.07% of the time you hold the letters for GO outright, the 43rd likeliest of 96. Counting a blank as whichever letter is missing lifts that to 14.49%, 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.