r1bqkn1r/2p1bp1p/1p4pn/p2pB3/3Pp3/1PNQ2PP/P1P1PPN1/R3KB1R b KQkq - 3 13
FEN state: r1bqkn1r/2p1bp1p/1p4pn/p2pB3/3Pp3/1PNQ2PP/P1P1PPN1/R3KB1R b KQkq - 3 13 ; Best move: e4d3
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8, black knight at f8 and black rook at h8. Black pawn at c7, black bishop at e7, black pawn at f7 and black pawn at h7. Black pawn at b6, black pawn at g6 and black knight at h6. Black pawn at a5, black pawn at d5 and white bishop at e5. White pawn at d4 and black pawn at e4. White pawn at b3, white knight at c3, white queen at d3, white pawn at g3 and white pawn at h3. White pawn at a2, white pawn at c2, white pawn at e2, white pawn at f2 and white knight at g2. White rook at a1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 3. Full move number is 13. Black to move.