// placeholder knights
rank = ["♘"] * 8

// function to get a random free space from a to b, inclusive
randFree = function(a, b)
    free = []
    for i in range(a, b)
        if rank[i] == "♘" then free.push i
    end for
    return free[rnd * free.len]
end function

// place the king
kingIdx = randFree(1, 6)
rank[kingIdx] = "♔"

// place rooks
rank[randFree(0, kingIdx - 1)] = "♖"
rank[randFree(kingIdx + 1, 7)] = "♖"

// place bishops
bishIdx = randFree(0, 7)
rank[bishIdx] = "♗"
while true
    i = randFree(0, 7)
    if i % 2 != bishIdx % 2 then break
end while
rank[i] = "♗"

// place queen
rank[randFree(0, 7)] = "♕"

print join(rank, " ")