Table:
text: Chiefs–Raiders rivalry
1970s (Raiders 12-6-2)
1970s (Raiders 12-6-2)
Year_ Date_ Winner Result_ Loser Location_
1974 September 22 Oakland Raiders 27–7 Kansas City Chiefs Oakland-Alameda County Coliseum
1974 December 8 Oakland Raiders 7–6 Kansas City Chiefs Arrowhead Stadium
1975 October 12 Kansas City Chiefs 42–10 Oakland Raiders Arrowhead Stadium
1975 December 21 Oakland Raiders 28–20 Kansas City Chiefs Oakland-Alameda County Coliseum
1976 September 20 Oakland Raiders 24–21 Kansas City Chiefs Arrowhead Stadium
1976 November 14 Oakland Raiders 21–10 Kansas City Chiefs Oakland-Alameda County Coliseum
1977 October 3 Oakland Raiders 37–28 Kansas City Chiefs Oakland-Alameda County Coliseum
1977 December 18 Oakland Raiders 21–20 Kansas City Chiefs Arrowhead Stadium
1978 October 15 Oakland Raiders 28–6 Kansas City Chiefs Oakland-Alameda County Coliseum

text: Chiefs–Raiders rivalry
1970s (Raiders 12-6-2)
1970s (Raiders 12-6-2)
Year_ Date_ Winner Result_ Loser Location_
1978 November 5 Oakland Raiders 20–10 Kansas City Chiefs Arrowhead Stadium
1979 September 23 Kansas City Chiefs 35–7 Oakland Raiders Arrowhead Stadium
1979 November 18 Kansas City Chiefs 24–21 Oakland Raiders Oakland-Alameda County Coliseum

text: Chiefs–Raiders rivalry
1970s (Raiders 12-6-2)
1970s (Raiders 12-6-2)
Year_ Date_ Winner Result_ Loser Location_
1970 November 1 Kansas City Chiefs 17–17 Oakland Raiders Municipal Stadium
1970 December 12 Oakland Raiders 20–6 Kansas City Chiefs Oakland-Alameda County Coliseum
1971 October 31 Kansas City Chiefs 20–20 Oakland Raiders Oakland-Alameda County Coliseum
1971 December 12 Kansas City Chiefs 16–14 Oakland Raiders Municipal Stadium
1972 November 5 Kansas City Chiefs 27–14 Oakland Raiders Arrowhead Stadium
1972 November 26 Oakland Raiders 26–3 Kansas City Chiefs Oakland-Alameda County Coliseum
1973 September 30 Kansas City Chiefs 16–3 Oakland Raiders Arrowhead Stadium
1973 December 8 Oakland Raiders 37–7 Kansas City Chiefs Oakland-Alameda County Coliseum

Question: When was the Oakland Raiders winner with the 1970 Raiders 12 6 2' in the Chiefs rivalry in 1975?

Question: What is the outcome of the 1970s Chiefs-Raiders rivalry game (Raiders 12-6-2) at Arrowhead Stadium where the Kansas City Chiefs were the loser?