艺廊这件作品还在版权期内本站只列资料、不放图，可以到下面的链接看原图。
作品介绍
The Deo Gracias Fresco in the Heiligen Geist Kirche (1326) in Wismar is a fresco on lime plaster that depicts a combinatorial puzzle made up of 99 letters. The Latin phrase Deo Gracias (in the Medieval Latin spelling gracias instead of gratias; means "thanks be to God") can be read in 504 ways. In a hospital church, the riddle can be understood both as a praise to God and as a remedy. The representation of praise as a puzzle and a learning aid for abstract thinking is unusual and therefore valuable.
No other frescoes of this kind have been found in Germany.
摘自英文维基百科「Deo Gracias Fresco」（暂时没有中文条目，下面是英文原文），按 CC BY-SA 4.0 使用，去掉了参考文献、外部链接等尾部小节和表格，其余文字未作改动。