The first edition is a good and playable game. The second edition makes a good game even better and is a classic and elegant design. Delete this reference as there are no rivers on the map, only brooks. Units may retreat freely across brook hex sides. The reference to foot artillery losses due to retreat refers to losses due to conventional attack or defense, not a bombardment attack.
Artillery conducting a bombardment attack ignores all adverse results, including retreats.
Artillery may not conduct a bombardment attack at a range of two hexes if the intervening hex is a woods or town hex. Bombardment attacks are not allowed at night. ZOCs never block supply. The presence of enemy units always blocks supply. Hex 1527 is a partial high ground hex, NOT a full high ground hex.