The 18th Reserve Division relieved the 52nd Reserve Division in late September and Reserve Infantry Regiment 84 on the left of the division lost 70 prisoners on 7 October. The British 20th Division took prisoners from Reserve Infantry Regiment 72 (7th Reserve Division) on the Gueudecourt–Beaulencourt road and Reserve Infantry Regiment 66 to the left. Reserve Infantry regiments 36 and 72 (7th Reserve Division) lost prisoners at Rainbow Trench. Snag Trench was held by III Battalion, BRIR 16 of the 6th Bavarian Reserve Division. From the British took 528 prisoners from Infantry regiments 360, 361, 362 of the 4th Division, the I Battalion, Infantry Regiment 360 having been attacked during a relief by III Battalion, Infantry Regiment 360. The 47th Division captured 84 prisoners of Reserve Infantry Regiment 31 (RIR 31) and 84 of the 18th Reserve Division. RIR 86 had moved left to close a gap made by the French, which moved RIR 31 opposite the British right flank. In the 16th Division area opposite the French, IR 68 and IR 28 made several counter-attacks against French troops who had reached the church in Sailly, greatly helped by the German artillery which inflicted many French losses before the fighting closed to hand-to-hand.