r1b2b1r/pp1q1kpp/2pppn2/5pP1/1P1PPP2/3Q3P/PP6/RNB1KBNR b KQ - 4 13
FEN state: r1b2b1r/pp1q1kpp/2pppn2/5pP1/1P1PPP2/3Q3P/PP6/RNB1KBNR b KQ - 4 13 ; Best move: f6e4
The current state of the chess board is: Black rook at a8, black bishop at c8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black queen at d7, black king at f7, black pawn at g7 and black pawn at h7. Black pawn at c6, black pawn at d6, black pawn at e6 and black knight at f6. Black pawn at f5 and white pawn at g5. White pawn at b4, white pawn at d4, white pawn at e4 and white pawn at f4. White queen at d3 and white pawn at h3. White pawn at a2 and white pawn at b2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 4. Full move number is 13. Black to move.