─────╷──────── $𝖕𝖇𝖕/𝖒𝖎𝖓𝖊𝖘𝖜𝖊𝖊𝖕𝖊𝖗/𝖒𝖎𝖓𝖊𝖘𝖜𝖊𝖊𝖕𝖊𝖗-𝖗𝖚𝖑𝖊𝖘.𝖘𝖆𝖕𝖕𝖍𝖎𝖗𝖊 ───────────────────────────────────────────

    0┊-------------------------------| Minesweeper Rules in Sapphire |--------------------------------

    1┊--|∙‹https://en.wikipedia.org/wiki/Minesweeper_(video_game)#Variants›∙see∙‘tentaizu’           

    2┊                                                                                               

    3┊Idx={0⋯wd⨫1}×{0⋯ht⨫1}∙--|∙0∙based∙indexing∙by∙pairs                                            

    4┊                                                                                               

    5┊∀⟨x∙y⟩∈Idx                                                                                     

    6┊∙∙⦗mine∙x∙y⦘∈{0∙1}                                                                             

    7┊∙∙⦗cel∙x∙y⦘∈{0⋯8}                                                                              

    8┊∙∙x=0∙∧∙y=0∙⇒∙⦗cel∙x∙y⦘=(+∙⦗mine∙x+1∙y⦘∙⦗mine∙x∙y+1⦘∙⦗mine∙x+1∙y+1⦘)                           

    9┊∙∙⦗cel∙x∙y⦘=(x>0∙⇒∙⦗mine∙x⨫1∙y⦘+(y>0⇒⦗mine∙x⨫1∙y⨫1⦘|0)+(y<ht⨫1⇒⦗mine∙x⨫1∙y+1⦘|0)∙|∙0)+         

   10┊∙∙∙∙∙∙∙∙∙∙∙∙(y>0⇒⦗mine∙x∙y⨫1⦘|0)+(y<ht⨫1⇒⦗mine∙x∙y+1⦘|0)+                                      

   11┊∙∙∙∙∙∙∙∙∙∙∙∙(x<wd⨫1∙⇒∙⦗mine∙x+1∙y⦘+(y>0⇒⦗mine∙x+1∙y⨫1⦘|0)+(y<ht⨫1⇒⦗mine∙x+1∙y+1⦘|0)∙|∙0)       

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