20-Move Chess

I should highlight to Bilbo21's example that if no piece can capture, Ng7 would not be mate regardless. Since the knight cannot capture the king, the king is therefore not under attack and is therefore not mated.

I should highlight to Bilbo21's example that if no piece can capture, Ng7 would not be mate regardless. Since the knight cannot capture the king, the king is therefore not under attack and is therefore not mated.
In that case, checkmate would never happen, and the game would eventually draw by repetition

Okay, for the record, here is a picture of my godmother that she decided to make public--I have two other pictures of her.
http://en.gravatar.com/jessica1hof
She look like a granny to you?
Off topic.
This is a warning.
Following the example of my colleague from the UK, I will now proceed to give a variant that I call "20-move chess"
No pieces can be captured and no pawns can be moved. Every 20 moves, you can remove one of your opponents pawns.