Kammala wannan jumla: A ranar 26 ga Agusta, 1891 da
An ci gaba da yakin Concón inda ban da zama shugaban ma'aikata, Körner ya ba da umurnin brigade na farko da kuma alhakin da ya dace don kai hari a yammacin fuka-fuki. Ƙungiyarsa ta haye kogin Aconcagua a 11:25 na safe don manufar samar da tsaro ga giciye na biyu da na uku brigades wanda ya yi haka tsakanin kilomita 7 da 8 zuwa gabas ta wasu fords. 'Yan adawa daga sojojin Balmacedist sun kasance kamar yadda ake tsammani, kamar yadda ba su yi amfani da matsalolin da yanayin ya bayar ba (kogin Aconcagua da Petra Gorge) ya sami damar watsar da dakarun tsarin mulki da sauri wanda ya sami babban kimantawa ga jaruntakarsa. Kasancewar sa a cikin rikici ya tsawaita har zuwa ƙarshen yaƙin a kusan 15:30, inda nan da nan ya fara shirya sojojin majalisa don fuskantar abin da ke zuwa. Tun da ya gane cewa yakin Concón ba zai zama yanke shawara ba, ya sake shirya sojojin majalisa kuma ya shirya kansa don yin yaƙi na gaba. Yawancin sojojin Balmacedist sun gudu kuma shugabanninsu sun jagorance su zuwa bayan don sake tsara kansu don shirya don sabon rikici.