| Jaren | |
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 | | Auteur: | Jacobus Koster (1916 - 1973) | | Jaren: | 1963 - 1967 | | Composities: | 16 |
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| Auteur | Stukken | Zetten | Datum | Bron | Zien | | Koster, J. | 7x7 | 4 | 00-07-1967 | Philips Damclub |  | | Koster, J. | 7x7 | 5 | 00-07-1967 | Philips Damclub | | | Koster, J. | 7x7 | 4 | 00-07-1967 | Philips Damclub | | | Koster, J. | 7x7 | 4 | 00-07-1967 | Philips Damclub | | | Koster, J. | 9x8 | 6 | 00-08-1965 | De Problemist | | | Koster, J. | 11x11 | 8 | 00-08-1965 | De Problemist | | | Koster, J. | 7x5 + 0x1 | 5 | 00-06-1965 | De Problemist | | | Koster, J. | 16x15 | 10 | 00-06-1965 | De Problemist | | | Koster, J. | 6x5 + 0x1 | 4 | 00-06-1965 | De Problemist | | | Koster, J. | 8x8 | 6 | 00-06-1965 | De Problemist | | | Koster, J. | 10x8 + 0x1 | 5 | 22-08-1964 | De Balkster Courant | | | Koster, J. | 8x8 | 3 | 23-05-1964 | Delftsche Courant | | | Koster, J. | 8x8 | 4 | 00-03-1964 | De Problemist | | | Koster, J. | 13x9 + 0x1 | 9 | 00-02-1964 | De Problemist | | | Koster, J. | 8x7 | 7 | 00-06-1963 | De Problemist | | | Koster, J. & Roos, H.M. | 7x6 | 3 | 00-06-1963 | De Problemist | |
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