The best I could do with today's word, and the wordlist, but no scoring function to minmax the rules:
- FUFFY (8159) (shipping of Faith and Buffy from Buffy the Vampire Slayer)
- IMMIX (4544) (to mix or blend)
- ZOCCO (2142) (low plinth, from the Italian word for sock)
- QAJAQ (530) (alternative form of kayak)
- TRATT (155) (clipping of trattoria)
- KHAPH (7) (alternative form of khaf, the 11th letter of the Hebrew alphabet)
I get the feeling that if this game had 7 steps instead of 6, it would almost always be impossible.
I had two word possibilities left at the end, so it's possible.
Theoretically, you could still win today's if there were 8 steps. The ninth is the word you have to avoid.
I haven't found a way to win today with 9 steps.
https://gist.github.com/erikcorry/b21723a0ba49c044b03a6030dc...
Edit: Using some of your words you can get to 9 steps (10 including the word you have to avoid): https://gist.github.com/erikcorry/d55d263b129eb7a56c8c212296...