On 2 June 1611 Smolensk had finally fallen to the Poles. After enduring 20 months of siege, two harsh winters and dwindling food supplies, the Russians in Smolensk finally reached their limit as the Polish-Lithuanian troops broke through the city gates. The Polish army, advised by the runaway traitor Andrei Dedishin, discovered a weakness in the fortress defenses, and on 13 June 1611 Cavalier of Malta Bartłomiej Nowodworski inserted a mine into a sewer canal. The explosion created a large breach in the fortress walls. The fortress fell on the same day.:563 The remaining 3,000 Russian soldiers took refuge in the Assumption Cathedral and blew themselves up with stores of gunpowder to avoid death at the hands of the invaders.:563 Although it was a blow to lose Smolensk, the defeat freed up Russian troops to fight the Commonwealth in Moscow, and the Russian commander at Smolensk, Mikhail Borisovich Shein, was considered a hero for holding out as long as he had. He was captured at Smolensk and remained a prisoner of Poland-Lithuania for the next nine years.

Question: What year did the siege start?
Answer: 2 February 1609

Question: How many days passed between the fall of Smolensk and the explosion leading to the fall of the fortress?
Answer: 11

Question: How many days after Smolensk fell to the poles was a mine thrown into a canal?
Answer: 11

Question: How many days after a mine was thrown in the sewer did the fortress fall?
Answer: the same day

Question: How many days after  Smolensk had finally fallen to the Poles did Nowodworski insert a mine into a sewer canal?
Answer: 11

Question: What date did the fortress fall from the explosion due to the mine?
Answer: 13 June 1611

Question: Which happened last, Mikhail Borisovich was captured at Smolensk, or Bartłomiej Nowodworski inserted a mine into a sewer canal?
Answer: Mikhail Borisovich

Question: How many days after Smolensk fell to the Poles did Cavalier of Malta Bartlomiej Nowodworski inserta  mine into a sewer canal?
Answer: 11

Question: Who had blown themselves up with gunpowder in the Assumption Cathedral, the Russian Soldiers or the Polish troops?
Answer: Russian soldiers

Question: How many days after Smolensk fell to the Poles did Cavalier of Malta Bartłomiej Nowodworski insert a mine into a sewer canal?
Answer: 11

Question: What day did the fortress fall?
Answer: 13 June 1611