Color Maze: Arrow Escape

Every arrow's got just one escape, and that's whichever way it's pointing. Tap it and it slides straight off the board. Simple enough on its own, except the board starts crammed full, and nothing moves unless the lane in front of it is empty. So mostly you're working out the order: find the arrow with a clear escape right now, send it off, and now the next one can move. Tap one that's boxed in and it just bumps into whatever's in the way and slides back, and there goes a life. The colors are the twist. Freeze one and every arrow in that color turns see-through, so you can't tap it anymore, but nothing's blocked by it either and the rest slide right past. Pick the wrong one and you're still stuck; pick the right one and the whole board comes loose. Working out which of the five to freeze is the real logic puzzle. Stuck for good? There's a hint to point you at a decent move, an eraser to wipe one arrow off the board, and a wand that sweeps away every arrow with a clear path out. That's the whole thing. Slide them off, freeze a color when you have to, and see how far you get. A quiet brain teaser at first, and a real puzzle once the colors start to matter.