This article is not yet available in English; the French version is shown.
Découvrez pourquoi il est impossible de colorier une grille 3×7 en noir et blanc sans former un rectangle monochromatique — une démonstration par combinatoire.
Articles recommended for you.
A ko arises when a stone is threatened with capture, but after the opponent captures it, the capturing stone is itself in a position to be captured.
A hundred years ago, the artist Kasimir Severinovitch Malevitch (1878–1935) was appointed commissioner for the preservation of buildings and the arts
The beauty of mathematical problems often lies in an imaginative method—a "haha," as Martin Gardner called it—that makes the solution seem obvious, provided we can find a fresh perspective.
In some two-player sequential games with complete information, one player may be tempted, when possible, to mirror the opponent's moves. When this gives one player a winning strategy, the game loses all interest unless the rules are changed to avoid this pitfall.
