Perez Ponsa,F - Obregon,A

Black rook on a8.
Black bishop on c8.
Black rook on f8.
Black king on g8.
Black pawn on b7.
Black pawn on g7.
Black pawn on a6.
Black queen on c6.
Black bishop on d6.
Black pawn on e6.
Black pawn on h6.
Black pawn on d5.
White pawn on f4.
White pawn on h4.
White pawn on a3.
White bishop on d3.
White queen on g3.
White pawn on b2.
White pawn on c2.
White knight on f2.
White pawn on g2.
White king on c1.
White rook on d1.
White rook on h1.