Throne
Place crowns without conflicts
Throne is a logic puzzle where you place exactly one crown in each row, column, and colored region. Crowns cannot touch each other, even diagonally.
Rules
Each row must contain exactly one crown. No more, no less.
Each column must also contain exactly one crown, just like rows.
Each colored region on the board must have exactly one crown placed within it.
Crowns cannot be adjacent to each other: not horizontally, vertically, or diagonally. Every crown needs empty space around it.
Strategies & Tips
Analyze Region-Row Intersections
When a region only intersects a single row (or column), that row's crown must come from that region. This simultaneously solves both constraints and often triggers chain reactions.
Use the Exclusion Zone
Each crown creates a 3×3 exclusion zone. Before placing, visualize how this zone affects neighboring regions. A crown near a region boundary can eliminate most cells in adjacent regions.
Find Forced Chains
When a region spans exactly two rows, its crown must be in one of them. If another region also needs one of those rows, you can deduce which row belongs to which region.
Work the Corners
Corner cells affect fewer neighbors than center cells. If a small region touches a corner, placing its crown there minimizes interference with other regions.
Count Available Cells per Constraint
For each row, column, and region, mentally count valid remaining cells. When any constraint drops to 1-2 options, focus there. Constraints with equal counts often share the same solution cells.