| White | Elo | Black | Elo | ECO | Year | Res. | # | | | |
|
Koch
|
|
Cosulich, Roberto
|
|
E21
|
1973
|
0-1
| 31 |
|
|
|
|
Koch, Hans Juergen
|
2065
|
Ortinau, Helmut
|
|
E21
|
1995
|
1-0
| 50 |
|
|
|
|
Koch, Herbert
|
1868
|
Both, Gerhard
|
2007
|
E21
|
2000
|
½-½
| 27 |
|
|
|
|
Koch, Wolfgang Max
|
2308
|
Genser, Harald
|
2265
|
E21
|
2003
|
1-0
| 65 |
|
|
|
|
Koch, Juan Enrique
|
2040
|
Sambuco Salomone, Luca...
|
|
E21
|
2003
|
0-1
| 41 |
|
|
|
|
Koch, Markus
|
2045
|
Wege, Jochen
|
2277
|
E21
|
2010
|
0-1
| 56 |
|
|
|
|
Koch, Marion
|
1650
|
Mirete, Rita
|
1550
|
E21
|
2011
|
0-1
| 22 |
|
|
|