步驟:1-4-7-8
步驟:1-4-7-8-5-2-3-6-9
步驟:7-5-3-9-6-2-1
步驟:5-8-7-2-9-8
步驟:3-5-2-7-6-5
步驟:7-5-3-9-6-2-1
步驟:7-1-8-3-9-6-2-4-5-6
步驟:1-3-4-9-7-6-1
步驟:1-4-8-6-3-5-7-2-9-1
步驟:4-8-9-6-2-1-7-5-3-2
步驟:1-5-9-4-8-2-6-3-7
步驟5-6-7-2-9-4-5
步驟7-3-6-2-3
步驟:9-1-6-2-4-3-7
步驟:7-2-9-4-3-8-1-6-5