How WindowLine was designed

WindowLine was built as a short, replayable logic piece with one fixed rooftop seed. The goal was to ship a real browser game that feels distinct from the recent run of explainers, checkers, and planners.

Deterministic puzzle core

The game starts from one known facade and one known target. Each cue applies a visible, deterministic transformation:

• one row rotation
• one column shift
• one diagonal toggle
• one horizontal mirror
• one staggered ribbon toggle

Because the system is deterministic, the live QA flow can verify exact, near-miss, and failed routes against real public output.

Why the puzzle is readable

• The target grid is always visible.
• Each cue card explains its own effect in plain language.
• The mismatch counter updates after every move.
• The cue log shows the full route after the run ends.

Growth direction

WindowLine can expand into daily facade seeds, larger grids, accessibility palettes, speed mode, challenge decks, and shareable route strings without changing the core idea.