Úloha o šachovnici
Rozhledy matematicko-fyzikální, Tome 92 (2017) no. 3, pp. 21-22
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The article deals with a problem of $n\times n$ chessboard which leads to the integer solution of the equation $3x + 2 = n^2$.
The article deals with a problem of $n\times n$ chessboard which leads to the integer solution of the equation $3x + 2 = n^2$.
[1] Odvárko, O., Kadleček, J.: Přehled matematiky pro základní školy a víceletá gymnázia. Prometheus, Praha, 2004.