# When en passant is the only legal move

Consider the following position:

8/7p/5K1k/8/7p/7P/5PP1/8 w - - 0 1

1. g4 hxg3


White plays g2-g4. The only legal move is hxg3.

I heard someone say that since the en passant capture is optional, Black can refuse to play it and have the game declared a draw by stalemate.

I think this is nonsense and believe that as long as there are legal moves available there's no stalemate.

Who is right?

• Capturing en passant is the weirdest move in chess. When someone was taught the rule, they were told it was optional - because it is. Now they have confused "optional to play an en passant capture" with "moving is optional because en-passant is optional". It is easy to see how someone could make that mistake. – Tony Ennis Dec 30 '15 at 17:42
• Its optional in the same way that every other move in chess is optional. At the end of the day you still need to pick one of them though. – David Grinberg Dec 30 '15 at 18:29
• It is only optional if you have another option :-) – Marco Dec 30 '15 at 19:02