As the artillery continued to bombard, the fortress and the external fortifications were blown open several gaps one after another, and by this time, two days had passed. Not only did the Russian side consume a lot of shells, but even the shells in the fortress were almost exhausted. Both sides suffered heavy losses, but they both knew that this was a life-and-death battle, and there could be no possibility of peace talks.

Muravyov feared that a long delay would attract reinforcements from the enemy, which was now considered enemy territory, so he decided to take a desperate gamble.

At 3 o'clock in the morning, when it was darkest, all the artillery also stopped attacking, and Muravyov led all the Cossack soldiers to attack from the gaps in the various directions of the fortress, and this time, instead of quietly attacking or sneak attacking, nor flanking tactics such as flanking, but attacking head-on with all their might, to force a breakthrough through the fortifications and fortresses of the Chinese Empire.

In order to create a dense force, Muravyov ordered all the Cossack cavalry to dismount and become infantry, charging on foot, of course, with hundreds of horses rushing in front of them, as a shield to cover the bullets fired by the fortress.

The Russian soldiers approached the gaps in the fortifications, and the infantry officers and men of the Third Field Corps of the Chinese Empire, who were guarding the forts and fortified bunkers according to the height difference, also lay down densely behind the fortifications and kept firing at the enemy troops outside the fortifications.

The infantry officers and men of the Third Field Corps were divided into three columns, the outermost column of soldiers kept firing, while the soldiers of the middle column passed their guns in the middle, ready to replenish the dead perimeter soldiers at any time, and the soldiers of the third column quickly loaded their bullets, and then quickly handed the loaded rifles to the hands of the soldiers in front of them, ensuring that the outermost soldiers lying on the fortifications could continue to shoot intensively.

And in fact, because the fortifications were full of gaps, and outside the gaps were densely packed with Cossack soldiers. Therefore, the soldiers of the 3rd Field Regiment in the fortifications and fortresses could hit the swarming enemy troops as long as they pulled the trigger and fired at will. At the same time, the Cossack artillerymen two miles away from the fortifications were still firing artillery at the fortress, because the Chinese Imperial soldiers behind the gap in the fortress were busy shooting and firing, and they did not dodge much, and they were also killed a lot.

The fierce battle lasted for about half an hour. And this half an hour put Muravyov in a desperate situation.

This half hour is 35 minutes of the slaughter of Cossack soldiers. According to preliminary statistics after the war, in just 35 minutes of fierce fighting, the Cossack soldiers suffered 14,000 casualties, and the intensive shooting made the Cossack soldiers who were desperately charging down one after another, with an average of about 400 people falling every minute, and nearly 7 people were shot and fell to the ground every second. The fortress of this emigration stronghold directly became a nightmare slaughterhouse for the Cossacks.

The casualties of the Chinese Imperial field soldiers inside the fortress and behind the outer fortifications were only about 1,200, less than one-tenth of the Russian army.

At this moment, Muravyov finally realized his stupidity. The use of Cossack cavalry to attack the fortress did not give full play to the advantages of cavalry, and forced the charge to test the firepower of the Chinese Empire, paying such a heavy price. At the same time, he didn't expect that this fortress, which looked small and had been bombed and ready to be breached, would hide so many soldiers and be so tenacious.

As the sky slowly brightened, Muravyov gathered his scattered Cossack soldiers and prepared to retreat. He has realized that there are at least nearly 30,000 enemy troops in this fortress, even if many are killed by artillery, there are at least 25,000 people now, not to mention that there are still many displaced civilians in the fortress, and now his Cossack cavalry has less than 20,000 people left, and it is impossible to conquer this fortress. He was ready to join up with another mixed Cossack infantry unit three hundred kilometers away.

And just as Muravyov was about to leave, it was already morning, and on the horizon at the upper and lower ends of the valley, two fast-moving black lines appeared: it was the enemy cavalry that was rapidly approaching and blocking the retreat of the Russian army.

Muravyov suddenly fell into an ice cellar, thinking that he had a large number of troops and surrounded this immigration stronghold of the Chinese Empire, but he did not expect that the enemy's reaction was so rapid that the reinforcements sent to intercept his retreat and want to encircle him. Now that he has lost most of his troops, his own forces are in a disadvantageous situation, and he can only quickly break through and rush out with speed before the enemy has time to complete the encirclement.

As a result, Muravyov ordered a quick breakout, driving thousands of ownerless horses in the front as an open charge, while in the rear, 20,000 Cossack cavalry abandoned all artillery, engineering equipment, and most of the rations, and other heavy supplies, carrying only guns, ammunition and a small amount of food, and charged the enemy troops coming from the valley behind. Quite a few Cossack soldiers, wielding swords, fought with such direct and effective cold weapons.

However, the soldiers of the Chinese Empire in the fortress also reacted quickly, rushing out of thousands of horses to collect some war horses abandoned by the Russian army outside the fortifications, and not long after, nearly 20,000 field soldiers were gathered, one man and one horse or two people and one horse, and chased in the direction of the Russian retreat.

At the same time, in the far reaches of the river valley, nearly 10,000 Chinese Imperial captives who had been reinforced, had already dismounted one after another, quickly lined up some baggage wagons in front of the formation, and the cannons on the carriages were either adjusted or unloaded and installed, and they prepared for war without any panic: the baggage vehicles were used as fortifications, and artillery was erected behind, and in the middle and behind the artillery were dense soldiers jumping off their horses, holding rifles and aiming in the direction of the enemy.

There were also hundreds of soldiers of the Chinese Empire who led hundreds of war horses to three or four hundred meters in front of the artillery, brandished war knives to slaughter or seriously wound the war horses, and let the wounded horses or the corpses of the war horses form an obstacle in front of the position and hinder the charge of the Cossack cavalry.

Because of the favorable defensive position of a section of the ditch in advance, the defense line was neither wide nor narrow, with the Obu River on one side and a steep cliff on the other, and the Cossack cavalry could attack only such a large area of the battle line, which was very beneficial to the defense of the infantry of the Chinese Empire. Therefore, they took the form of free fire, continuously firing at the charging Cossack cavalry.

The Cossack cavalry, with the exception of the two thousand men at the front, who used charging carbines, was mostly dominated by sabers. But the firepower of the captives was so dense that the Cossack cavalry failed to get close to the dense line of infantry.

The Cossack cavalry only thought that they were heroic, and the position on the scene did not allow them room to maneuver around the flank, they could not storm the flank of the infantry with cavalry, but could only charge in front of the infantry position from a distance, and such a charge, from the point of view of the eyes, was tantamount to suicide!

The Cossack cavalry, braving a small amount of artillery fire, met them with a dense barrage of bullets. Let them barely maintain their formation and rush to a distance of 150 meters from the infantry defense carriages of the Chinese Empire, and it will be difficult to rush closer. The soldiers of the field army of the Chinese Empire opened fire at the same time, and for a time, the entire valley was filled with gunsmoke, bullets flew everywhere, and the Cossack cavalry was killed and wounded in front of the defensive wagons. The commander of the Cossack cavalry also fell from his horse and was wounded, but he got up with a saber in his hand, grabbed a group of horses and continued to direct the charge. And many more soldiers were thrown down a few hundred meters from the defensive wagon, and even if a small number of them rushed by, they tripped over the fallen soldiers and horses, and the corpses piled up higher and higher.

Twenty minutes later, the Cossack cavalry stopped charging, and Muravyov found it desperate to find that with their few forces, it was impossible to break through the blockade of the 10,000 enemy infantry. By this time, the enemy troops in the distant fortress had begun to approach and come to support, and their Cossack cavalry had almost a dead end except for the escape by wading through the river, including charging to break through.