How to Replay a Failed Color Block Jam Attempt

What should you record?

Record the board state, the move that closed access, and the destination that became unreachable. A short note is enough if it identifies the dependency.

How should the second attempt differ?

Change one decision at a time. If you change the whole opening, you will not know whether the route or the board reading caused the improvement.

When should you compare a guide?

Compare the opening layout and the first checkpoint. A numbered guide is useful only when its board state matches your own.