Short answers, pulled from the story.
The Battle of Molodi was a decisive conflict fought between Russian forces and the Crimean Khanate from July 30 to the 8th of August 1572. Prince Mikhail Vorotynsky commanded Russian troops who used innovative gulyay-gorod mobile fortifications to defeat Devlet I Giray's army near the Lopasnya River.
Prince Mikhail Vorotynsky served as the supreme commander of the Russian forces which numbered between 20,000 and 70,000 men. Prince Repnin led the left flank while Prince Odoevsky commanded the right wing of the army under his command.
Russian troops utilized gulyay-gorod mobile fortifications and close-in fighting with sabers and spears to neutralize Tatar archery skills. Prince Dmitry Ivanovich Khvorostinin bypassed the main horde with these fortifications to strike the enemy rear and disrupt their formation.
Only 20,000 Tatar horsemen returned to Crimea after the battle while Devlet I Giray lost his sons and a grandson on the field. The heavy casualties crippled the Crimean Khanate for years following this decisive defeat in 1572.
Modern Russian historians estimate the Crimean army numbered between 40,000 and 60,000 men including Nogai, Circassians and Ottoman janissaries. The Moscow historian Vitaly Pensky estimates the total size of the Russian army at 35,000 men during the engagement.