r1bk1bnr/3n2p1/p6p/3p1p2/1pNp1PQ1/1P4PN/P1P3BP/R1B1K2R b Q - 0 18
FEN state: r1bk1bnr/3n2p1/p6p/3p1p2/1pNp1PQ1/1P4PN/P1P3BP/R1B1K2R b Q - 0 18 ; Best move: f5g4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at d8, black bishop at f8, black knight at g8 and black rook at h8. Black knight at d7 and black pawn at g7. Black pawn at a6 and black pawn at h6. Black pawn at d5 and black pawn at f5. Black pawn at b4, white knight at c4, black pawn at d4, white pawn at f4 and white queen at g4. White pawn at b3, white pawn at g3 and white knight at h3. White pawn at a2, white pawn at c2, white bishop at g2 and white pawn at h2. White rook at a1, white bishop at c1, white king at e1 and white rook at h1. White queenside is the only castle move available. Half move number is 0. Full move number is 18. Black to move.