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上圖簡述征子的各種情況。[1]:25
- 在左上角，黑1的征子成立。如果黑1改於a位叫吃，則白可在1位長，黑方即無法征吃白棋。
- 在右上角，白方強行逃出。即使白方在b位叫吃黑09，黑方仍可於c位提掉被征吃的所有白子。
- 在左下角，由於黑棋征子的方向已有一枚白子（即A3位上的白△），征子即告失敗。其他有被征一方棋子可導致征子失敗的位置皆加上圓形標註。
- 在右下角，黑方堅持征子，結果在遇到白△一子時，其中一枚負責征子的黑37反被負責逃走的白40叫吃。由於征子一方的棋子全部不相連接，如果黑方企圖於e位黏回黑37，白方可於f位用雙叫吃的手段提掉負責征子的黑31或黑35，解除危機。此圖中，黑正確的走法是黑39改在40位叫吃，白於39位長出後因為臨近邊線仍然只有2氣，黑41再走g位即可全殺白棋。
被征的一方在征子方向的點投子，這稱為引征，使對方如在此應手，則被征者可按原計劃出逃征子，且將在此點使被征子逸出。故而對方不得不提去征子或者於征子路徑上阻攔引征（後者則稱為絮征），而使被征一方得以在此局部連下兩手。引征屬於棄子戰術的一種，以犧牲被征的棋子去換取圍地的利益。
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