rnbq3r/pp1p2bp/3kpnp1/1Pp2p2/2P1PP2/Q4NP1/P2P2BP/RNB2K1R b - - 4 13
FEN state: rnbq3r/pp1p2bp/3kpnp1/1Pp2p2/2P1PP2/Q4NP1/P2P2BP/RNB2K1R b - - 4 13 ; Best move: f6e4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at d7, black bishop at g7 and black pawn at h7. Black king at d6, black pawn at e6, black knight at f6 and black pawn at g6. White pawn at b5, black pawn at c5 and black pawn at f5. White pawn at c4, white pawn at e4 and white pawn at f4. White queen at a3, white knight at f3 and white pawn at g3. White pawn at a2, white pawn at d2, white bishop at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white king at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 13. Black to move.