Botvinnik Challenges Alekhine to World Chess Championship Match

Since the beginning of 1946, the world chess champion Alexander Alekhine had lived alone in the Portuguese tourist town of Estoril. He suffered from a lack of money; he was tormented by illness and alcoholism, boycotted by his colleagues. In early March, he arrived in Lisbon at the invitation of the British Embassy, where he was handed a letter delivered through diplomatic channels.

Mikhail Botvinnik: Sixth World Chess Champion (World Chess Champions Series Book 6) - Kindle edition by Isaak Linder, Vladimir Linder, Andy Soltis.

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