Every row and column MUST have exactly 1 of those special blocks.
WARNINGS will highlight any mistakes for you.
Walls (black blocks) are obstacles.
To place a special block, click any non-wall block multiple times. Use an X to mark a tile. GUIDES show which rows & columns are already occupied by placing Xs for you.
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Knights thrive in the open & CANNOT touch walls vertically or horizontally.
Wizards thrive in shadows & MUST touch 1+ wall(s) vertically or horizontally.
The king needs protection and MUST diagonally touch 1+ knights or wizards.