r2qkbnr/1pp1pp1p/p7/2P5/1P1p3p/4P2Q/PB1P1PP1/RN2K2R w kq - 0 13
FEN state: r2qkbnr/1pp1pp1p/p7/2P5/1P1p3p/4P2Q/PB1P1PP1/RN2K2R w kq - 0 13 ; Best move: b2d4
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black pawn at e7, black pawn at f7 and black pawn at h7. Black pawn at a6. White pawn at c5. White pawn at b4, black pawn at d4 and black pawn at h4. White pawn at e3 and white queen at h3. White pawn at a2, white bishop at b2, white pawn at d2, white pawn at f2 and white pawn at g2. White rook at a1, white knight at b1, white king at e1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 13. White to move.