Germany (Ger 3rd Army, 82,000 men under Friedrich Wilhelm) attacked France (Fr Army of Alsace, 41,000 men under Macmahon) in France. The CAA Database of Battles records 9 hours of fighting on a front of 10 km, a frontal attack, double envelopment against hasty defense, and that Germany won. Losses: Germany 10,700 (13%), France 20,300 (50%).
This plan is generated from those figures. It shows the shape of the battle the database describes: the size and width of the armies, the plan of attack and the outcome. It does not show where the units actually stood.