[regnodon]

Extra details for anyone interested:

- letters are 14-segment bitmasks

- moves transfer individual segments under a hand-cap

- PAR is the exact required number of placements to go from start to target word

- clue tiers disclose geometric facts (counts of diagonals/verticals/horizontals, center spines, etc.)

The puzzle generator simulates candidate counts and rejects puzzles that don’t collapse to a single possible solution given the constraints.