Cobrindo um tabuleiro nxm com tetraminós do tipo quadrado e do tipo l.

Whole-channel inclusion: Polos Olímpicos de Treinamento Intensivo is an honest teaching channel (title sample + 3 transcripts read: All three samples lack transcripts, so the channel verdict relies on the title-sample assessment indicating a genuine math olympiad training channel.); this title passed a strict title check (sonnet) after a labelling pass.

A 5-minute video from Polos Olímpicos de Treinamento Intensivo: “Cobrindo um tabuleiro nxm com tetraminós do tipo quadrado e do tipo l.”.

Video by Polos Olímpicos de Treinamento Intensivo, played through YouTube's embedded player.