r1b1k2r/2p2p1p/6p1/pp1n2b1/4PN1P/3B1n2/PP1PKP1P/RNB2Q1R b q - 1 18
FEN state: r1b1k2r/2p2p1p/6p1/pp1n2b1/4PN1P/3B1n2/PP1PKP1P/RNB2Q1R b q - 1 18 ; Best move: f3d4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at c7, black pawn at f7 and black pawn at h7. Black pawn at g6. Black pawn at a5, black pawn at b5, black knight at d5 and black bishop at g5. White pawn at e4, white knight at f4 and white pawn at h4. White bishop at d3 and black knight at f3. White pawn at a2, white pawn at b2, white pawn at d2, white king at e2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 1. Full move number is 18. Black to move.