r3kbr1/p1pp1ppn/np2p2p/5P2/1q1Pb3/PP5N/2PNPBPP/1R1QKB1R w Kq - 11 13
FEN state: r3kbr1/p1pp1ppn/np2p2p/5P2/1q1Pb3/PP5N/2PNPBPP/1R1QKB1R w Kq - 11 13 ; Best move: a3b4
The current state of the chess board is: Black rook at a8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at a7, black pawn at c7, black pawn at d7, black pawn at f7, black pawn at g7 and black knight at h7. Black knight at a6, black pawn at b6, black pawn at e6 and black pawn at h6. White pawn at f5. Black queen at b4, white pawn at d4 and black bishop at e4. White pawn at a3, white pawn at b3 and white knight at h3. White pawn at c2, white knight at d2, white pawn at e2, white bishop at f2, white pawn at g2 and white pawn at h2. White rook at b1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside and black queenside castles are available. Half move number is 11. Full move number is 13. White to move.