Vitaly N.

How do hot air balloons work? Can you show a model

I would like to become a chess tutor on Wyzant.

What is the ultimate objective in the game of chess?

I want to print out a ton of chess positions that I’m studying so I don’t need to look at my phone or the computer. Is there any software for doing this smoothly instead of manually formatting... more

Two squares on a chessboard are said to be neighbours if they have an edge or a corner on the board in common. This means that squares on the edge have 5 neighbours, on the corner have 3 neigbours,... more