r3kb1r/ppqbp1pp/2p2p2/1Pn1n3/N7/P2pPQP1/3P1P1P/R1B1KBNR w KQkq - 0 13
FEN state: r3kb1r/ppqbp1pp/2p2p2/1Pn1n3/N7/P2pPQP1/3P1P1P/R1B1KBNR w KQkq - 0 13 ; Best move: f3d1
The current state of the chess board is: Black rook at a8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black queen at c7, black bishop at d7, black pawn at e7, black pawn at g7 and black pawn at h7. Black pawn at c6 and black pawn at f6. White pawn at b5, black knight at c5 and black knight at e5. White knight at a4. White pawn at a3, black pawn at d3, white pawn at e3, white queen at f3 and white pawn at g3. White pawn at d2, white pawn at f2 and white pawn at h2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 13. White to move.