r1bqkb1r/pp1p3p/5np1/2p1p3/P1P4R/8/1PBPNP1n/R1B1K1N1 b Qkq - 0 18
FEN state: r1bqkb1r/pp1p3p/5np1/2p1p3/P1P4R/8/1PBPNP1n/R1B1K1N1 b Qkq - 0 18 ; Best move: f6g4
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 bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at d7 and black pawn at h7. Black knight at f6 and black pawn at g6. Black pawn at c5 and black pawn at e5. White pawn at a4, white pawn at c4 and white rook at h4. White pawn at b2, white bishop at c2, white pawn at d2, white knight at e2, white pawn at f2 and black knight at h2. White rook at a1, white bishop at c1, white king at e1 and white knight at g1. White queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 18. Black to move.