Mathiassen, Olaf
5th HM., Skakbladet TT, 1960
#2
4 + 3
4884 | 154 norske miniatyrproblemer | 1974 |
2012 | Miniature Chess Problems from Many Countries | 1981 |
56 | The Problemist | 1981 |
3295 | Einfuhrung in die Welt des Schachproblem | 1984 |
145 | StrateGems | 2009 |
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