This probably isn't a CHIP disk at all.

The MENU.BAS program is corrupted, but the usable part gives some program
details:

1. SARGON CHESS, v6.78
    launches CHESS6.PRG
    setup goes OK, but when entering the first move, the program seems to
    hang on the 2nd keystroke.

2. SARGON CHESS, v8.79
    launches CHESS8.PRG
    setup goes OK, but when entering the first move, the program seems to
    hang on the 2nd keystroke.

3. RAKASKA/RUST CHESS IN COMPILED BASIC (.PRG)
    launches CHESS.PRG
    dies with FCS error EFRD -- not surprising, as two or more sectors
    of this program have a bad CRC.

4. RAKASKA/RUST CHESS IN BASIC (.BAS)
    runs CHESS.BAS