| date | team 1 _________ | score | team 2 _________ | HT | | Group A | Akademik Sofia | 55-54 | Slavia Sofia | | | Group B | CSKA Ch. Zname Sofia | 45-43 | Lokomotiv Sofia | | | Fri 28.10.66 | Slavia Sofia | 73-61 | Lokomotiv Sofia | 38-28 | | Fri 28.10.66 | Akademik Sofia | 78-51 | CSKA Ch. Zname Sofia | 43-27 | | Sat 29.10.66 | Akademik Sofia | 71-62 | Lokomotiv Sofia | 34-19 | | Sat 29.10.66 | Slavia Sofia | 53-50 | CSKA Ch. Zname Sofia | 26-29 |
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| date | team 1 _________ | score | team 2 _________ | HT | | Group A | Minyor Pernik | 87-61 | Maritsa Plovdiv | | | Group B | Sportist Kremikovtsi | 61-44 | Etar Veliko Tarnovo | | | Fri 28.10.66 | Minyor Pernik | 59-53 | Etar Veliko Tarnovo | 31-28 | | Fri 28.10.66 | Sportist Kremikovtsi | 76-56 | Maritsa Plovdiv | 36-22 | | Sat 29.10.66 | Minyor Pernik | 59-56 | Sportist Kremikovtsi | 28-25 | | Sat 29.10.66 | Etar Veliko Tarnovo | 53-49 | Maritsa Plovdiv | 20-24 |
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| date | team 1 _________ | score | team 2 _________ | HT | | Sat 22.10.66 | Lokomotiv Sofia | 79-44 | Spartak Varna | | | Sat 22.10.66 | CSKA Ch. Zname Sofia | 64-37 | Minyor Pernik | | | Sun 23.10.66 | CSKA Ch. Zname Sofia | 45-43 | Lokomotiv Sofia | | | Sun 23.10.66 | Minyor Pernik | 87-61 | Maritsa Plovdiv | | | Mon 24.10.66 | CSKA Ch. Zname Sofia | 71-29 | Spartak Varna | | | Mon 24.10.66 | Lokomotiv Sofia | 61-50 | Maritsa Plovdiv | | | Tue 25.10.66 | Lokomotiv Sofia | 62-60 | Minyor Pernik | | | Tue 25.10.66 | Maritsa Plovdiv | 56-50 | Spartak Varna | | | Wed 26.10.66 | CSKA Ch. Zname Sofia | 51-45 | Maritsa Plovdiv | | | Wed 26.10.66 | Minyor Pernik | 76-55 | Spartak Varna | |
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| date | team 1 _________ | score | team 2 _________ | HT | | Sat 22.10.66 | Sportist Kremikovtsi | 61-44 | Etar Veliko Tarnovo | | | Sat 22.10.66 | Akademik Sofia | 2-0 | Beroe Stara Zagora | | | Sun 23.10.66 | Akademik Sofia | 55-54 | Slavia Sofia | | | Sun 23.10.66 | Sportist Kremikovtsi | 2-0 | Beroe Stara Zagora | | | Mon 24.10.66 | Slavia Sofia | 82-66 | Sportist Kremikovtsi | | | Mon 24.10.66 | Etar Veliko Tarnovo | 2-0 | Beroe Stara Zagora | | | Tue 25.10.66 | Akademik Sofia | 79-50 | Sportist Kremikovtsi | | | Tue 25.10.66 | Akademik Sofia | 56-35 | Slavia Sofia | | | Wed 26.10.66 | Akademik Sofia | 89-46 | Etar Veliko Tarnovo | | | Wed 26.10.66 | Slavia Sofia | 2-0 | Beroe Stara Zagora | |
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