Absolutely adore the artwork and visual "juice" in this! The way the knight hops around and the visual ghost-highlight grid effects for the wood planks is genuinely very charming.
Not a critique, but more a request, but it'd be awesome if you could stack wood planks on top of each other and rapid-fire place and/or throw them as needed. I think it'd make the gameplay a lot faster and smoother.
Great stuff!