4 ms·

Really nice but I wish I didn't have to click "Check" every time after moving the pieces. It could do that automatically.

• hatthew 5mo ago
  I put `setInterval(checkBoard, 100)` in the console to do it automatically.
• xdennis 5mo ago
  I think that's intentional as in chess you're supposed to come up with the solution without feedback. The puzzle predates computers.