number of difficulties that the builders were faced with. Beginning at the ring, where the only deep level station was located, the line follows the Krasnaya Presnya street and then turns north along the 1905 year street, further work was hampered by the necessity to cross under the sorting yard of the Belorussky Rail Terminal with a total of 27 individual railroads, and when building the last stretch Polezhayevskaya-Oktyabrskoye Pole. In both cases, the soil was typical sand that was used to elevate the railways, which made it impossible to bore under using conventional means. Firstly chemical adhesive had to be used to strengthen it so that when drained, it would not fall in. To avoid a collapse after the shield bored its way, a horizontal platform had to be installed above it, and the TBM moved at maximum pressure, without any temporary joining in the sand. Just like the Zhdanovskaya line, the line relieved major transport arteries and congestion, Begovaya was built similarly to Tekstilshchiki with exists from subways coming straight onto railway platforms. As four of the five stations were sub-surface, an attempt was made to modernise the existing centipede design. The volume of the station space was increased, and to support the larger roof, the size of the pillars was raised, but so was their spacing, from 4 to 6.5 metres. In the end, instead of the two rows of 40, there was 2 of 26. The new design became very widespread in the rest of the system. The architecture also made a comeback with new stations. For the first time in nearly 20 years, marble was used on station walls. Building the final part of the line commenced shortly afterwards on the central stretch finally linking up the Zhdanovskaya line, and finishing the Krasnopresnensky radius. The former was built with two deep level column stations, one of the centrepieces was the increased diameter of the central vault of 9.5 metres, as well as the rich architecture methods used. The latter section encountered a significant difficulty when building under the Moscow Canal. To avoid flooding, boring had to be done in the winter, and a three-metre thick plane of ice had to be placed on the canal bed. Afterwards, the line continued into the northern regions of Shchukino and Tushino, including another combined railway link at Tushinskaya. The station Skhodnenskaya was another pioneering design, which consisted of