Used by the routines at 59148 and 62368. T values in this block may be (and in practice are) used by play area tiles at y-coordinates 5, 11, 17, 23, 29, 35 and 41. The T values at addresses 46778, 46779, 46787-46793, 46821-46824 and 46838-46843 are used only by tiles at y-coordinate 41 (which are never displayed), and are therefore effectively unused.