In this task, you are given a set of context paragraphs, some supporting facts and an answer of a question. Your task is to generate question for given answer based on set of context paragraphs, supporting facts and an answer.

Context_1 : Kh (Russian: ) was the class of double axled high-floor tramcars, which were built in Soviet Union in interbellum period. First vehicles were built in 1927 and delivered to Kharkov, Ukraine. First letter of city name, Cyrillic "" (usually transliterated as "Kh"), was selected as a designation of whole series. After Kharkiv, tramcars of this type were supplied to many Soviet cities and became most numerous in the fleets of many municipalities. In 1941, after the onset of Operation Barbarossa, their production was stopped for maximizing war efforts. The Kh-class tramcars were finally withdrawn from the city service in the mid-1960s as morally obsolete vehicles, their sturdy construction allowed them to be used much more. The small number of survived cars are preserved for museum purposes in Moscow, Nizhniy Novgorod, Saratov and few other cities. Context_2 : Combat Mission II: Barbarossa to Berlin (also known in the Windows version as simply Combat Mission: Barbarossa to Berlin) is a turn-based computer game about tactical battles in World War II. It is part of the "Combat Mission" series. The game has been described as the "reigning champ of east front tactical warfare for the PC." Context_3 : Karma: Operation Barbarossa (Korean: 2, and also known as Karma 2) is a free online First Person Shooter game developed by Dragonfly, Futureport, and Blueside, and it is distributed by Dragonfly. It is the sequel to Karma Online, which was the first online First Person Shooter game in South Korea. Karma: Operation Barbarossa was planned to be published in North America by free-to-play publisher ijji, but has recently been officially canceled. However, on March 2011, Joymax picked up the rights to publish the game globally under the name, Karma Online: Prisoners Of The Dead. Context_4 : In the Dungeons & Dragons fantasy role-playing game, the Ambush drake is a type of Dragon. Unlike traditional D&D Dragons, which are somewhat feline, Ambush drakes are lupine (wolf-like). Ambush drakes are short, squat and compact compared to normal Dragons, but still grow to be at least as large as an adult human. They have muscular limbs, and short spines on their necks and ugly heads. Their wings are disproportionate. Ambush drakes have grey bodies and back legs, with dark orangey-red heads, front legs and wings. They are far less intelligent than regular Dragons. Context_5 : Ambush! is a man-to-man wargame developed by Avalon Hill. It was released under Avalon's Victory Games label and was developed by Eric Lee Smith and John Butterfield. In 1984, "Ambush!" won the Origins Award for "Best 20th Century Boardgame of 1983". It has been out of print since Avalon Hill was disbanded in 1998. Context_6 : A withdrawal is a type of military operation, generally meaning retreating forces back while maintaining contact with the enemy. A withdrawal may be undertaken as part of a general retreat, to consolidate forces, to occupy ground that is more easily defended, or to lead the enemy into an ambush. It is considered a relatively risky operation, requiring discipline to keep from turning into a disorganized rout or at the very least doing severe damage to the military's morale. Context_7 : Barbarossa ( , Barubarossa ) is a 1992 Japan-exclusive Super Famicom strategy video game that revolves around Nazi Germany's involvement in the World War II campaign called "Operation Barbarossa". Context_8 : Barbarossa is a plasticine-shaping German-style board game for 3 to 6 players, designed by Klaus Teuber in and published in 1988 by Kosmos in German and by Rio Grande Games in English. "Barbarossa" won the 1988 Spiel des Jahres award. Context_9 : Company of Heroes 2 is a real-time strategy video game developed by Relic Entertainment and published by Sega for Microsoft Windows, OS X, and Linux. It is the sequel to the critically acclaimed 2006 game "Company of Heroes". As with the original "Company of Heroes", the game is set in World War II but with the focus on the Eastern Front, with players primarily controlling the side of the Soviet Red Army during various stages of the Eastern Front, from Operation Barbarossa to the Battle of Berlin. "Company of Heroes 2" runs on Relic Entertainment's proprietary Essence 3.0 game engine Context_10 : Yoshi is an extinct genus of machairodontine sabertooth cat in the tribe Metailurini. Its fossils were described from Turolian deposits from the Miocene epoch of the Balkan Peninsula in 2014 and specimens from china once thought to belong to "Metailurus". It has been described as potentially being synonymous with "Metailurus", though this is difficult to confirm at present. The type specimen is a skull that bears remarkable similarities with the modern cheetah. "Yoshi" is intermediate in size between a lynx and cougar, and based on several as-yet unpublished skeletons, may have had a similar lifestyle to the cheetah, being better built for speed and fast pursuit than most other machairodonts, which were more suited to ambush and hunting large, relatively slow moving animals. fact_1 : Barbarossa is a plasticine-shaping German-style board game for 3 to 6 players, designed by Klaus Teuber in and published in 1988 by Kosmos in German and by Rio Grande Games in English. fact_2 : won the Origins Award for "Best 20th Century Boardgame of 1983". Answer: board
Barbarossa and Ambush!, are which type of game?