由黑龙江省棋社和北京棋院等单位联合举办的黑龙江、北京两省市老同志友谊赛,于1984年8月5日至10在哈尔滨市举行。经过八轮三十二局的激烈角逐,北京张欣第一,北京崔培光第二,黑龙江王若全第三。如图是黑龙江赵长顺与北京孟传德走成的一个残局。红方经过巧妙构思,运用左兵右帅的钳型攻法制胜。实战着法如下: Heilongjiang Province, Chess and other institutions jointly organized by the Beijing Chess and other units in Heilongjiang and Beijing provinces and cities veteran friendly match, in August 5, 1984 to 10 held in Harbin. After eight rounds of 32 Bureau fierce competition, Beijing Zhang Xin first, Beijing Cui Peiguang second, He Ruijuan Wang Ruquan third. As shown in the pictures of Heilongjiang Zhao Changshun and Beijing Meng Chuande into a mess. After the clever idea of ​​the Red Square, the use of left-handed right-handed clamp-type attack victory. The actual combat method is as follows: