4-Die Chess
Very few of these rules make sense without more clarifying rules.<p>Never-mind the impossibility of Kings playing en-passant, there is also the concept introduced of &quot;higher piece&quot; without defining an order. Can a bishop upgrade to a knight? Can a knight upgrade to a Bishop? Can a rook upgrade to a bishop?<p>Despite the popular &quot;valuing&quot; of pieces, they aren&#x27;t actually in the rules of chess and need to be stated.<p>&gt; If a king is within its starting row, it can castle with both rooks.<p>What does it mean to castle with <i>both</i> rooks? Is that a typo for &quot;either&quot;?<p>Also it seems to suggest that you can move the king along the starting rank and still castle later. How would that work if your king was on b8 for example?<p>This is a strange kind of nonsense. It shows the difficulty of translating some home-brew rules into actual rules that others can follow.