MESON Chess Problem Database
Search Results
| PID | YEARS | KINGS | GBR | STIP | AWARD | SOURCE | COMPOSER(S) |
|---|---|---|---|---|---|---|---|
| 276224 | 0000 | h1e3 | 1758.38 | #5 | 1st Comm. | Schweizerische Schachzeitung | van Gool, Johann Christoffel |
| 272442 | 1957 | d5f5 | 1188.23 | #2 | None | diagrammes | Fulpius, Jaques & van Gool, Johann Christoffel |
| 273295 | 1970 | e2d5 | 4528.14 | #2 | None | Schakend Nederland | van Gool, Johann Christoffel |
| 42468 | 1971 | h8e5 | 4742.24 | #2 | 1st Prize | Het Parool | van Gool, Johann Christoffel |
| 11809 | 1972 | c2a7 | 4518.14 | #2 | None | Jaarboek | van Gool, Johann Christoffel |
| 36641 | 1972 | h8f6 | 1558.02 | #2 | 1st Prize | Schakend Nederland | van Gool, Johann Christoffel |
| 71743 | 1972-1975 | f5d3 | 4855.52 | #2 | 1st Place | 01. WCCT | Drese, Gerardus Hendrikus & van Gool, Johann Christoffel & von Meyenfeldt, Frits H |
| 11893 | 1973 | b7d5 | 1888.24 | #2 | 2nd HM. | KeyStip 07. Ty. | van Gool, Johann Christoffel |
| 140434 | 1974 | b8c5 | 1742.27 | #3 | 3rd Place | Match: Greece - Netherlands | van Gool, Johann Christoffel |
| 139165 | 1974 | b8e4 | 4778.34 | #2 | 3rd Prize | 02. Kwik-Toernooi | van Gool, Johann Christoffel |
| 139148 | 1974 | f8d4 | 1771.42 | #2 | None | Probleemblad | van Gool, Johann Christoffel |
| 139166 | 1974 | g8d4 | 4785.45 | #2 | 1st HM. | 02. Kwik-Toernooi | van Gool, Johann Christoffel |
| 140328 | 1974 | h2d4 | 1558.52 | #2 | 7th Place | Match: Greece - Netherlands | van Gool, Johann Christoffel |
| 139164 | 1974 | h8c5 | 4888.33 | #2 | 2nd Prize | 02. Kwik-Toernooi | van Gool, Johann Christoffel |
| 200519 | 1974/I | d3e5 | 4488.63 | #3 | 1st HM. | Het Parool | van Gool, Johann Christoffel |
| 91665 | 1975 | a7c5 | 4878.27 | #2 | None | Probleemblad | van Gool, Johann Christoffel |
| 200514 | 1975 | a8e6 | 4678.46 | #3 | 2nd Prize | Het Parool | van Gool, Johann Christoffel |
| 140152 | 1975 | b2b5 | 1153.10 | #2 | None | Probleemblad | van Gool, Johann Christoffel |
| 232096 | 1975 | d3c6 | 1875.07 | #2 | None | diagrammes | van Gool, Johann Christoffel |
| 140233 | 1975 | d8d6 | 4577.43 | #2 | 1st Prize | 05. Kwik-Toernooi | van Gool, Johann Christoffel |
| 97845 | 1975 | e6c6 | 4778.15 | #2 | None | Problemas | van Gool, Johann Christoffel |
| 116199 | 1975 | f1d4 | 4888.35 | #2 | 3rd HM. | 04. Kwik-Toernooi | van Gool, Johann Christoffel |
| 116198 | 1975 | f8e6 | 4788.17 | #2 | 2nd Prize | 04. Kwik-Toernooi | van Gool, Johann Christoffel |
| 103818 | 1975 | h3e5 | 4585.30 | #2 | None | Northwest Chess | van Gool, Johann Christoffel |
| 140237 | 1975 | h4e8 | 1885.03 | #2 | Comm. | 05. Kwik-Toernooi | van Gool, Johann Christoffel |
| 140167 | 1975 | h5f5 | 4548.63 | #2 | None | Probleemblad | van Gool, Johann Christoffel |
| 116200 | 1975 | h8e4 | 4887.35 | #2 | 3rd Comm. | 04. Kwik-Toernooi | van Gool, Johann Christoffel |
| 49022 | 1976 | a6c5 | 4148.67 | #3 | 2nd Prize | Oudot MT | van Gool, Johann Christoffel |
| 141091 | 1976 | a6d4 | 1022.88 | #3 | None | Probleemblad | van Gool, Johann Christoffel |
| 12201 | 1976 | a8e4 | 4858.63 | #2 | None | Journal de Geneve | van Gool, Johann Christoffel |
| 141097 | 1976 | b5e5 | 1112.65 | #3 | 2nd Prize | 06. Kwik-Toernooi | van Gool, Johann Christoffel |
| 141524 | 1976 | b8c5 | 4878.44 | #2 | 1st Comm. | 07. Kwik-Toernooi | van Gool, Johann Christoffel |
| 200512 | 1976 | b8e5 | 0878.64 | #3 | 1st HM. | Het Parool | van Gool, Johann Christoffel |
| 141520 | 1976 | e8d6 | 4728.28 | #2 | 2nd Prize | 07. Kwik-Toernooi | van Gool, Johann Christoffel |
| 141525 | 1976 | g7d5 | 4788.63 | #2 | 2nd Comm. | 07. Kwik-Toernooi | van Gool, Johann Christoffel |
| 140745 | 1976 | g8e5 | 4252.73 | #2 | None | Probleemblad | van Gool, Johann Christoffel |
| 141737 | 1977 | b7d3 | 4857.36 | #2 | None | 08. Kwik-Toernooi | van Gool, Johann Christoffel |
| 194416 | 1977 | b7d5 | 1558.73 | #2 | None | Journal de Geneve | van Gool, Johann Christoffel |
| 145243 | 1977 | c3e5 | 4858.22 | #2 | None | Journal de Geneve | van Gool, Johann Christoffel |
| 144920 | 1977 | c5h1 | 4582.32 | #2 | None | Journal de Geneve | van Gool, Johann Christoffel |
| 141729 | 1977 | c7d4 | 1458.34 | #2 | Prize | 08. Kwik-Toernooi | van Gool, Johann Christoffel |
| 194414 | 1977 | d7e4 | 4858.72 | #2 | None | diagrammes | van Gool, Johann Christoffel |
| 194417 | 1977 | f2c4 | 4137.64 | #2 | None | Journal de Geneve | van Gool, Johann Christoffel |
| 141738 | 1977 | g2d5 | 1588.33 | #2 | None | 08. Kwik-Toernooi | van Gool, Johann Christoffel |
| 194415 | 1977 | h8d4 | 4858.47 | #2 | None | diagrammes | van Gool, Johann Christoffel |
| 141721 | 1977 | h8e4 | 1478.73 | #3 | None | Probleemblad | van Gool, Johann Christoffel |
| 273731 | 1978 | a2d4 | 4885.25 | #2 | 3rd Comm. | Grunenwald/Monreal JT (diagrammes) | van Gool, Johann Christoffel |
| 268238 | 1978 | a2g5 | 4888.24 | #2 | 3rd HM. | KeyStip 20. Ty. | van Gool, Johann Christoffel |
| 200507 | 1978 | a3f4 | 4257.47 | #3 | None | Het Parool | Goldschmeding, Cornelis & le Grand, Henk & van Gool, Johann Christoffel |
| 176016 | 1978 | a5e5 | 0158.45 | #5 | HM. | Probleemblad 138. TT | van Gool, Johann Christoffel |
| 200489 | 1978 | b6d4 | 3881.76 | #5 | Prize | Het Parool | van Gool, Johann Christoffel |
| 40530 | 1978 | c1d4 | 4855.55 | #3 | None | Journal de Geneve | van Gool, Johann Christoffel |
| 163464 | 1978 | c8e5 | 1778.57 | #2 | None | Probleemblad | van Gool, Johann Christoffel |
| 8504 | 1978 | d3g3 | 1021.51 | #3 | None | Journal de Geneve | van Gool, Johann Christoffel |
| 268234 | 1978 | e1c4 | 4588.36 | #2 | 3rd Prize | KeyStip 20. Ty. | van Gool, Johann Christoffel |
| 164072 | 1978 | h1f5 | 4588.24 | #3 | None | Probleemblad | van Gool, Johann Christoffel |
| 177449 | 1978 | h3e8 | 4578.35 | #4 | None | Probleemblad | Keller, Michael & van Gool, Johann Christoffel |
| 46116 | 1978 | h3f4 | 4888.62 | #2 | None | Journal de Geneve | van Gool, Johann Christoffel |
| 103819 | 1978-1979 | a4e5 | 4588.25 | #2 | 1st Prize | Northwest Chess | van Gool, Johann Christoffel |
| 198463 | 1978-1979 | a5e6 | 4888.32 | #2 | Recomm. | Fontaine MT | van Gool, Johann Christoffel |
| 147382 | 1979 | a4c8 | 1222.65 | #3 | None | Journal de Geneve | van Gool, Johann Christoffel |
| 268148 | 1979 | a4f4 | 1852.46 | #2 | 1st HM. | KeyStip 21. Ty. | van Gool, Johann Christoffel |
| 268147 | 1979 | a5g5 | 1878.27 | #2 | 3rd Prize | KeyStip 21. Ty. | van Gool, Johann Christoffel |
| 262783 | 1979 | a8c4 | 4288.33 | #2 | 2nd Prize | Szachy | van Gool, Johann Christoffel |
| 178023 | 1979 | b2e4 | 4878.46 | #3 | None | Probleemblad | van Gool, Johann Christoffel |
| 176957 | 1979 | b7d5 | 4868.31 | #3 | Comm. | Schach-Echo | le Grand, Henk & van Gool, Johann Christoffel |
| 72775 | 1979 | b8d5 | 4888.55 | #4 | 1st Prize | Probleemblad | Amirov, Talip Khasanovich & van Gool, Johann Christoffel |
| 178012 | 1979 | d1f5 | 4488.42 | #2 | None | Probleemblad | van Gool, Johann Christoffel |
| 268146 | 1979 | e1e6 | 1885.54 | #2 | 2nd Prize | KeyStip 21. Ty. | van Gool, Johann Christoffel |
| 200505 | 1979 | e4d8 | 1875.16 | #3 | 2nd Prize | Het Parool | le Grand, Henk & van Gool, Johann Christoffel |
| 267163 | 1979 | e7e5 | 4888.24 | #3 | None | Schakend Nederland | Kantorowicz, Bruno & van Gool, Johann Christoffel |
| 260360 | 1979 | g4e5 | 4888.64 | #3 | None | Neue Zurcher Zeitung | van Gool, Johann Christoffel |
| 179785 | 1979 | h1d5 | 1758.45 | #3 | None | Probleemblad | le Grand, Henk & van Gool, Johann Christoffel |
| 267116 | 1979 | h1e4 | 1848.55 | #2 | None | Schakend Nederland | van Gool, Johann Christoffel |
| 49662 | 1979-1980 | c7e3 | 1088.16 | #3 | 2nd Comm. | Het Belgisch Schaakbord (L'Echiquier Belge) | van Gool, Johann Christoffel |
| 8553 | 1979/II | h7d2 | 4174.15 | #3 | 1st Comm. | Het Parool | le Grand, Henk & van Gool, Johann Christoffel |
| 248936 | 1980 | a1c4 | 4525.32 | #2 | None | Schakend Nederland | van Gool, Johann Christoffel |
| 184093 | 1980 | a3b1 | 0252.77 | #4 | None | Probleemblad | van Gool, Johann Christoffel |
| 184077 | 1980 | a6e3 | 1585.06 | #2 | None | The Problemist | van Gool, Johann Christoffel |
| 58851 | 1980 | b6d5 | 1351.31 | #2 | 1st Prize | Urania TT | van Gool, Johann Christoffel |
| 200301 | 1980 | f1e4 | 4887.37 | #4 | None | Probleemblad | Amirov, Talip Khasanovich & van Gool, Johann Christoffel |
| 216412 | 1980 | g8f6 | 4868.57 | #3 | None | Probleemblad | van Gool, Johann Christoffel |
| 200288 | 1980 | h4f4 | 1484.34 | #2 | None | Probleemblad | van Gool, Johann Christoffel |
| 145031 | 1980 | h5f7 | 3277.58 | #2 | None | Journal de Geneve | van Gool, Johann Christoffel |
| 200297 | 1980 | h6e2 | 1488.16 | #3 | None | Probleemblad | van Gool, Johann Christoffel |
| 15293 | 1980-1983 | a8e3 | 1252.65 | #2 | 8th Place | 02. WCCT | Prins, Hendrik & van Gool, Johann Christoffel |
| 5533 | 1980-1983 | f6d4 | 4785.51 | #3 | 8th Place | 02. WCCT | le Grand, Henk & van Gool, Johann Christoffel |
| 197372 | 1981 | a8e4 | 4858.43 | #2 | None | The Problemist | van Gool, Johann Christoffel |
| 157470 | 1981 | c6e2 | 4555.15 | #2 | None | Probleemblad | Hoek, Willem & van Gool, Johann Christoffel |
| 197375 | 1981 | c8d5 | 1275.46 | #3 | None | The Problemist | van Gool, Johann Christoffel |
| 238635 | 1981 | d3f4 | 4188.35 | #2 | None | Probleemblad | van Gool, Johann Christoffel |
| 216682 | 1981 | e8d5 | 4888.46 | #3 | None | Probleemblad | van Gool, Johann Christoffel & van der Scheur, D |
| 104282 | 1981 | f6d3 | 1345.68 | #3 | None | Magyar Sakkelet | van Gool, Johann Christoffel |
| 244102 | 1981 | g7e5 | 4885.47 | #3 | None | Probleemblad | van Gool, Johann Christoffel |
| 268335 | 1981 | g8d4 | 4788.52 | #2 | 2nd Comm. | KeyStip 27A. Ty. | van Gool, Johann Christoffel |
| 238641 | 1981 | h3d2 | 4255.55 | #2 | None | Probleemblad | Wilson, Francis Vaux & van Gool, Johann Christoffel |
| 251028 | 1981 | h8d5 | 4778.55 | #4 | None | Probleemblad | Amirov, Talip Khasanovich & van Gool, Johann Christoffel |
| 199722 | 1982 | a1b4 | 4575.76 | #3 | None | The Problemist | le Grand, Henk & van Gool, Johann Christoffel |
| 251661 | 1982 | a2a4 | 1585.44 | #3 | None | Probleemblad | le Grand, Henk & van Gool, Johann Christoffel |
| 5607 | 1982 | a7c5 | 1788.45 | #3 | None | The Problemist | le Grand, Piet & van Gool, Johann Christoffel |
| 251740 | 1982 | c8d6 | 1788.65 | #3 | None | Probleemblad | van Gool, Johann Christoffel |
| 251653 | 1982 | d7e5 | 0278.37 | #2 | None | Probleemblad | le Grand, Johan B & van Gool, Johann Christoffel |
| 54878 | 1982 | g6d4 | 4887.34 | #3 | 4th HM. | Olympic Ty. | van Gool, Johann Christoffel |
| 91666 | 1982 | h8d4 | 1225.32 | #2 | None | Probleemblad | van Gool, Johann Christoffel |
| 190888 | 1982-1983 | d7e5 | 4688.56 | #3 | 1st Prize | Drese MT | van Gool, Johann Christoffel |
| 191952 | 1983 | a5e5 | 1755.17 | #2 | None | Schweizerische Schachzeitung | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 198518 | 1983 | a8c4 | 4542.33 | #2 | 5th HM. | Gevers MT | van Gool, Johann Christoffel |
| 223924 | 1983 | c4e5 | 4888.53 | #3 | Comm. | Deutsche Schachzeitung | le Grand, Henk & van Gool, Johann Christoffel |
| 106733 | 1983 | g2e4 | 4885.46 | #3 | 1st HM. | Probleemblad | le Grand, Henk & van Gool, Johann Christoffel |
| 200698 | 1983 | h3e5 | 1878.63 | #3 | None | The Problemist | le Grand, Piet & van Gool, Johann Christoffel |
| 42578 | 1983 | h5d5 | 1785.33 | #2 | 1st Prize | Freie Presse | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 253069 | 1983 | h5e4 | 4878.45 | #3 | None | Probleemblad | Schoen, Gerhard Ernst & van Gool, Johann Christoffel |
| 50520 | 1983-1984 | e8e6 | 4288.20 | #2 | Comm. | Het Belgisch Schaakbord (L'Echiquier Belge) | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 274576 | 1984 | a1e6 | 1537.34 | #2 | Comm. | Buletin Problemistic TT | van Gool, Johann Christoffel |
| 196337 | 1984 | a6d5 | 1885.74 | #3 | None | Suomen Shakki | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 255645 | 1984 | a7e5 | 4885.56 | #3 | None | Probleemblad | Bosma, Rinke & van Gool, Johann Christoffel |
| 187059 | 1984 | b1e4 | 4842.14 | #2 | 6th HM. | Schakend Nederland | van Gool, Johann Christoffel |
| 255046 | 1984 | b2e5 | 4685.51 | #2 | None | Probleemblad | van Gool, Johann Christoffel |
| 260423 | 1984 | b8d5 | 4788.45 | #3 | None | Neue Zurcher Zeitung | van Gool, Johann Christoffel |
| 15489 | 1984 | c2d4 | 1748.23 | #2 | 3rd Prize | Schach-Aktiv | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 152645 | 1984 | c5e3 | 3842.42 | #2 | 2nd Comm. | L'Italia Scacchistica | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 104284 | 1984 | d2d4 | 4785.63 | #3 | None | Fleck-75 JT | van Gool, Johann Christoffel |
| 255010 | 1984 | g1c4 | 4582.46 | #3 | None | Probleemblad | Niemeijer, Meindert & le Grand, Henk & van Gool, Johann Christoffel |
| 209325 | 1984 | g1g5 | 1525.47 | #2 | None | The Problemist | Prins, Hendrik & van Gool, Johann Christoffel |
| 207754 | 1984 | h1d4 | 1655.25 | #2 | None | The Problemist | van Gool, Johann Christoffel |
| 30231 | 1984 | h8f6 | 1848.34 | #3 | 2nd Prize | Probleemblad | le Grand, Henk & van Gool, Johann Christoffel |
| 173580 | 1984-1985 | h1d4 | 0858.41 | #2 | 3rd Comm. | Boletim da UBP | van Gool, Johann Christoffel |
| 66117 | 1984-1988 | a8e5 | 1551.14 | #2 | 5th Place | 03. WCCT | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 64834 | 1985 | a2g6 | 4888.24 | #2 | 1st HM. | The Problemist | Prins, Hendrik & van Gool, Johann Christoffel |
| 64847 | 1985 | a5c5 | 4558.27 | #2 | None | Mat | Prins, Hendrik & van Gool, Johann Christoffel |
| 196599 | 1985 | c3e5 | 1818.23 | #2 | None | Suomen Shakki | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 15541 | 1985 | c7f4 | 1011.11 | #2 | 2nd Comm. | Probleemblad | van Gool, Johann Christoffel |
| 268139 | 1985 | e8d5 | 3881.86 | #3 | None | Probleemblad | le Grand, Henk & van Gool, Johann Christoffel |
| 145285 | 1985 | f1d4 | 4858.66 | #2 | 3rd Prize | Cheron MT | van Gool, Johann Christoffel |
| 173859 | 1985 | h1e4 | 1458.14 | #3 | None | Probleemblad | Borovik, Boris V & van Gool, Johann Christoffel |
| 268180 | 1985 | h2d4 | 4754.53 | #2 | None | Probleemblad | van Gool, Johann Christoffel |
| 29753 | 1985 | h5d5 | 4275.27 | #3 | None | The Problemist | le Grand, Henk & van Gool, Johann Christoffel |
| 268582 | 1986 | a1d4 | 1758.63 | #3 | None | Probleemblad | le Grand, Henk & van Gool, Johann Christoffel |
| 48153 | 1986 | a7e5 | 4578.44 | #2 | 1st Prize | Probleemblad | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 211406 | 1986 | e2e4 | 1872.66 | #3 | None | The Problemist | van Gool, Johann Christoffel |
| 211374 | 1986 | f6d5 | 1848.34 | #3 | 2nd Comm. | The Problemist | le Grand, Henk & van Gool, Johann Christoffel |
| 99887 | 1986 | g7e5 | 4248.43 | #2 | None | Budapesti Sakkszovetseg | van Gool, Johann Christoffel |
| 198062 | 1986 | h2c6 | 4488.53 | #2 | None | Suomen Shakki | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 52491 | 1986-1987 | a7g3 | 4558.17 | #2 | Comm. | Het Belgisch Schaakbord (L'Echiquier Belge) | Prins, Hendrik & van Gool, Johann Christoffel |
| 15578 | 1986-1987 | h3e4 | 1225.52 | #2 | Comm. | Het Belgisch Schaakbord (L'Echiquier Belge) | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 250782 | 1986-1988 | c6e6 | 4818.54 | #3 | 2nd HM. | Thessalonika-2300 JT | van Gool, Johann Christoffel |
| 250778 | 1986-1988 | h2e4 | 1585.50 | #2 | 4th Comm. | Thessalonika-2300 JT | van Gool, Johann Christoffel |
| 250781 | 1986-1988 | h3d6 | 4488.47 | #3 | 1st HM. | Thessalonika-2300 JT | van Gool, Johann Christoffel |
| 252826 | 1987 | a7e5 | 1585.55 | #2 | None | Schach | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 252563 | 1987 | d1d4 | 3258.55 | #2 | None | Schach | le Grand, Piet & van Gool, Johann Christoffel |
| 48156 | 1987 | e1d5 | 1758.54 | #2 | 4th HM. | Hlas l'udu | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 15755 | 1987 | e8f5 | 4288.26 | #2 | 2nd HM. | Schach-Aktiv | le Grand, Piet & van Gool, Johann Christoffel |
| 221667 | 1987 | g5e5 | 3832.64 | #3 | None | The Problemist | le Grand, Henk & van Gool, Johann Christoffel |
| 15745 | 1987 | h1d5 | 0857.70 | #2 | 1st Prize= | Problemas | le Grand, Piet & van Gool, Johann Christoffel |
| 124466 | 1987 | h7d5 | 1588.13 | #2 | None | Sachova skladba | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 73660 | 1987-1988 | h2f1 | 4575.54 | #3 | 1st Prize | Schakend Nederland | Prins, Hendrik & van Gool, Johann Christoffel |
| 199759 | 1989 | a1d5 | 1847.17 | #5 | None | Suomen Shakki | van Gool, Johann Christoffel |
| 229445 | 1989 | f1d3 | 4550.22 | #2 | Comm. | Sachova skladba | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 153344 | 1989 | f8f5 | 4255.24 | #2 | 4th HM. | Wola Gulowska | van Gool, Johann Christoffel |
| 141298 | 1989 | f8f6 | 4751.46 | #4 | None | Phenix | van Gool, Johann Christoffel |
| 260475 | 1989 | h6e4 | 4178.44 | #3 | None | Neue Zurcher Zeitung | van Gool, Johann Christoffel |
| 200274 | 1990 | a8d5 | 4855.32 | #2 | None | Problemas | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 7523 | 1990 | a8f4 | 4778.50 | #2 | 1st Prize | diagrammes | van Gool, Johann Christoffel |
| 270059 | 1990 | b3d5 | 4758.46 | #3 | None | Het Belgisch Schaakbord (L'Echiquier Belge) | le Grand, Henk & van Gool, Johann Christoffel |
| 249304 | 1990 | b7d5 | 4858.51 | #2 | None | The Problemist | van Gool, Johann Christoffel |
| 183008 | 1990 | b7e7 | 1555.62 | #2 | None | Boletim da UBP | Prins, Hendrik & van Gool, Johann Christoffel |
| 7502 | 1990 | f1e3 | 4515.05 | #2 | 1st Prize | Szoghy-60 JT | van Gool, Johann Christoffel |
| 88470 | 1990 | g1e5 | 1888.53 | #3 | None | The Problemist | Prins, Hendrik & van Gool, Johann Christoffel |
| 103928 | 1990 | h7f5 | 4878.32 | #2 | None | Hlas l'udu | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 63234 | 1990 | h8d4 | 4458.56 | #3 | 3rd Prize | Probleemblad | van Gool, Johann Christoffel |
| 186260 | 1990-1991 | c5e5 | 1858.37 | #2 | 5th Comm. | idee & form | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 97844 | 1990-1991 | e7e5 | 1381.38 | #3 | None | Problemas | le Grand, Henk & van Gool, Johann Christoffel |
| 25101 | 1991 | a5e5 | 1688.46 | #3 | None | The Problemist | van Gool, Johann Christoffel |
| 116201 | 1991 | h3d4 | 4888.27 | #2 | None | Thema Danicum | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 103929 | 1992 | a1e5 | 1578.24 | #2 | 2nd HM. | Wola Gulowska | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 77608 | 1992 | b8d4 | 1458.26 | #3 | None | Grzankowski MT | van Gool, Johann Christoffel |
| 103552 | 1992 | f6g4 | 1575.44 | #2 | None | Slovensky Dennik | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 55219 | 1992 | h2f6 | 0442.64 | #3 | None | Troll | van Gool, Johann Christoffel |
| 132239 | 1993 | h5d3 | 1878.61 | #2 | None | Knobi's Knobelecke | van Gool, Johann Christoffel |
| 32510 | 1993 | h8c5 | 4875.18 | #5 | None | The Problemist | van Gool, Johann Christoffel |
| 41269 | 1995 | e7d5 | 4748.06 | #2 | 2nd Comm. | US Problem Bulletin | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 45261 | 1996-1997 | c7c4 | 4845.63 | #2 | 1st Prize | Knobi's Knobelecke | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 266737 | 1998 | a8d4 | 4888.14 | #2 | None | The Problemist | van Gool, Johann Christoffel |
| 234859 | 1999 | a4e3 | 0884.64 | #2 | 1st HM. | Solarczyk-90 JT | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 12597 | 1999 | d8e5 | 0558.48 | #3 | 1st Comm. | Probleemblad | le Grand, Henk & le Grand, Piet & van Gool, Johann Christoffel |
| 103942 | 1999 | e1e5 | 1015.23 | #2 | None | L'Italia Scacchistica | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 16099 | 2000 | e8e5 | 1527.05 | #2 | None | Probleemblad | van Gool, Johann Christoffel |
| 154574 | 2000 | h8c7 | 1578.16 | #3 | None | stern | van Gool, Johann Christoffel |
| 42534 | 2001 | b5d4 | 1858.42 | #2 | 2nd Prize | Problem Observer | Groeneveld, Cornelis & van Gool, Johann Christoffel |
| 46244 | 2002 | b6d4 | 0588.48 | #4 | None | Probleemblad | le Grand, H? & van Gool, Johann Christoffel |
| 46249 | 2002 | d8d5 | 0184.58 | #5 | None | Probleemblad | le Grand, H? & van Gool, Johann Christoffel |
| 46202 | 2002 | e1e8 | 4871.55 | #3 | 3rd Prize | Burbach-75 JT | van Gool, Johann Christoffel |
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).