Two major pieces (queens or rooks) can easily force checkmate on the edge of the board. The process is to put the two pieces on adjacent ranks or files and gradually force the king to the side of the board, where one piece keeps the king on the edge of the board while the other delivers checkmate.
Urine is mostly water (about 95% water), however, the rest of the contents of urine can vary depending of what youâve eaten, drank, breathed or been exposed to. The remainder of urine usually consists of urea, uric acid, ammonia, hormones, dead blood cells, proteins, salts and minerals, and toxins.
Other components of urine include sodium chloride (common salt), and over 100 other substances that are usually present, but only in trace (i.e. very small) quantities. Urine is aprox. 95% water. The other components of normal urine are the solutes that are dissolved in the water component of the urine.