The idea is cool and I like the selection for crafting with the right mouse button - that is a very interesting way to craft :), would like to see more of it!
Moving the crafting recipes into the game itself might make it eazier to play. Since the items expire so slowly, it doesn't really change the gameplay. Unfortunately, I encountered a lot of bugs. But what I do enjoy are the sprites :), they look great! Good job on the game!
I played the game again to hunt bugs, but I have realized they are not actually bugs, just things differing from my expectations :). Sorry. For example, each time a stone is generated, I would expect it to appear on the "Get it!", but it takes a little bit longer. And then each time you start dragging from an empty spot or outside the board, you grab the first thing your mouse touches (I'd expect nothing to be grabbed). And the text about stone doesn't go away when you remove a tool. So it's not really buggy :), it just confused me, sorry ;).
