r2q1k1r/ppp2pb1/2nPp2p/4N1pn/4P1P1/1P1b1P2/P2P3P/R1BQKB1R b KQ - 0 18
FEN state: r2q1k1r/ppp2pb1/2nPp2p/4N1pn/4P1P1/1P1b1P2/P2P3P/R1BQKB1R b KQ - 0 18 ; Best move: g7e5
The current state of the chess board is: Black rook at a8, black queen at d8, black king at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at f7 and black bishop at g7. Black knight at c6, white pawn at d6, black pawn at e6 and black pawn at h6. White knight at e5, black pawn at g5 and black knight at h5. White pawn at e4 and white pawn at g4. White pawn at b3, black bishop at d3 and white pawn at f3. White pawn at a2, white pawn at d2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 18. Black to move.