1r3bnr/p1Nk1p2/7B/1p5p/3n2qP/3PP2N/PPP2Pb1/R2QKB2 b Q - 0 18
FEN state: 1r3bnr/p1Nk1p2/7B/1p5p/3n2qP/3PP2N/PPP2Pb1/R2QKB2 b Q - 0 18 ; Best move: d4f3
The current state of the chess board is: Black rook at b8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, white knight at c7, black king at d7 and black pawn at f7. White bishop at h6. Black pawn at b5 and black pawn at h5. Black knight at d4, black queen at g4 and white pawn at h4. White pawn at d3, white pawn at e3 and white knight at h3. White pawn at a2, white pawn at b2, white pawn at c2, white pawn at f2 and black bishop at g2. White rook at a1, white queen at d1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 0. Full move number is 18. Black to move.