| Title: | Úloha o šachovnici (Czech) | 
| Author: | Calda, Emil | 
| Language: | Czech | 
| Journal: | Rozhledy matematicko-fyzikální | 
| ISSN: | 0035-9343 (print) | 
| Volume: | 92 | 
| Issue: | 3 | 
| Year: | 2017 | 
| Pages: | 21-22 | 
| Summary lang: | English | 
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| Category: | history | 
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| Summary: | The article deals with a problem of $n\times n$ chessboard which leads to the integer solution of the equation $3x + 2 = n^2$. (English) | 
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| Date available: | 2017-10-06T06:55:55Z | 
| Last updated: | 2019-04-01 | 
| Stable URL: | http://hdl.handle.net/10338.dmlcz/146887 | 
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| Reference: | [1] Odvárko, O., Kadleček, J.: Přehled matematiky pro základní školy a víceletá gymnázia.. Prometheus, Praha, 2004. | 
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