Find the winning move. Make any legal move: if it is not the right one, it is taken back and you can try again.
One move
About this position
This trap comes from the Budapest , an opening where Black gives up the king pawn on the second move to develop the pieces with gain of time. It is named after Georg Kieninger, who played it in a casual game in Vienna in 1925. White has won material and thinks the worst is over, but the white king is still in the centre, surrounded by its own pieces and with no squares to run to. That is typical ground for opening traps: an uncastled king and one of its own pieces that seems to guard everything, but can end up . What to remember is that a pinned piece cannot capture off the line of the pin, so the squares it seemed to guard are open. Before you grab material in the opening, check which of your pieces could end up pinned to the king and which squares your king has left.