How to play
The winning condition for Canal View is precise: every cell, edge, region, and fixed clue satisfies the connected water directional sight completion test. No hidden solution values are printed to justify the result; the rules engine validates the submitted position.
- Before the first move in Canal View, identify which marks are givens and which controls are decisions. Canal cells form one shaded network, unshaded cells contain no two-by-two block, and each clue totals visible canal cells along four rays. The browser stores that distinction with the seeded opening so a restart never changes the puzzle or deal.
- Use the live board controls to change one legal decision at a time. Canal cells form one shaded network, unshaded cells contain no two-by-two block, and each clue totals visible canal cells along four rays. The runtime validates the resulting state before it records a move or opens a new undo branch.
- The winning condition for Canal View is precise: every cell, edge, region, and fixed clue satisfies the connected water directional sight completion test. No hidden solution values are printed to justify the result; the rules engine validates the submitted position.
Strategy tips
- Use directional clues to bound the canal along four rays, then connect forced shaded segments while reserving breaks that prevent a two-by-two white pool.
- Counting only contiguous shaded cells misreads a sight clue; every visible canal cell on all four rays contributes under the published rule.
- Use undo to compare the last branch if two completions look plausible, then recheck the exact requirement: every cell, edge, region, and fixed clue satisfies the connected water directional sight completion test. A locally attractive move can still break a distant constraint.