Queenmoss

One crown in every row, every column and every coloured patch of moss, and no two crowns may touch, not even at a corner. Simple rules, and a satisfying chain of deductions on every board.

Every puzzle is generated by the game and checked twice: a solver proves there is exactly one solution, and a deduction engine proves you can reach it without guessing. The same engine powers the hints, which explain one logical step at a time.

• Daily puzzle: grown from the date, with a timer and a streak that counts consecutive days
• Archive of 40: six 6x6 boards to learn on, rising to 10x10
• Unique and fair: one solution per puzzle, reachable by logic alone
• Explaining hints: each hint names its reason (a single cell left, a region confined to one row, a crown that would leave no room) and applies it on a second press
• Helpful marking: X marks, drag to paint, optional auto-X for cells a crown rules out, undo and clear
• Keyboard or touch: cursor and keys, or tap and drag

Code and text written with AI assistance; checked by PN Scripts with automated tests. Every shape is drawn and every sound synthesised by code; there are no AI-generated image or audio files.

Controls

• Tap a cell: X mark, tap again: crown, again: clear; drag to paint X marks
• Arrow keys / WASD: move the cursor; Space / Enter: crown; X: mark
• H: hint (press again to apply), U: undo, Q: auto-X, C: clear
• 1: daily puzzle, 2: archive, [ and ]: previous / next archive puzzle
• P / Esc: pause, M: sound

Made by PN Scripts.