图1是2011年全国象棋甲级联赛,第3轮上海孙勇征与北京王天一弈战形成的待判局面。红方车八平九与车九平八,步步捉无根子黑炮,是长捉。黑方炮1平2,伏车3进3,仕五退六,车3退2,仕六进五,车3平1得车,判“捉”。续着炮2平1,联合其他子3 Figure 1 is the 2011 national Chess League, the third round of Shanghai Sun Yongzheng and Beijing Wang Tianyi a war situation to be sentenced. Red car eight flat nine and car nine flat eight, step by step catch blackmail, is a long shot. Black square guns 1 flat 2, Volkswagen 3 into 3, the official five retreat six, car 3 back 2, Shi Liu Jinwu, car 3 flat 1 get the car, sentenced “catch ”. Continued with the gun 2 flat 1, combined with other children 3