1rbqk1nr/2pn2pN/3b4/pp2pp1P/4PP2/P2p3B/1PPP2KP/RNBQ3R b k - 2 13
FEN state: 1rbqk1nr/2pn2pN/3b4/pp2pp1P/4PP2/P2p3B/1PPP2KP/RNBQ3R b k - 2 13 ; Best move: e5f4
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8, black knight at g8 and black rook at h8. Black pawn at c7, black knight at d7, black pawn at g7 and white knight at h7. Black bishop at d6. Black pawn at a5, black pawn at b5, black pawn at e5, black pawn at f5 and white pawn at h5. White pawn at e4 and white pawn at f4. White pawn at a3, black pawn at d3 and white bishop at h3. White pawn at b2, white pawn at c2, white pawn at d2, white king at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1 and white rook at h1. Black kingside is the only castle move available. Half move number is 2. Full move number is 13. Black to move.