rqb1k1r1/4p1bp/pp1p1n2/4n1P1/P1NP2p1/1PB1P3/2P2P2/R2Q1KNR b q - 6 18
FEN state: rqb1k1r1/4p1bp/pp1p1n2/4n1P1/P1NP2p1/1PB1P3/2P2P2/R2Q1KNR b q - 6 18 ; Best move: e5c4
The current state of the chess board is: Black rook at a8, black queen at b8, black bishop at c8, black king at e8 and black rook at g8. Black pawn at e7, black bishop at g7 and black pawn at h7. Black pawn at a6, black pawn at b6, black pawn at d6 and black knight at f6. Black knight at e5 and white pawn at g5. White pawn at a4, white knight at c4, white pawn at d4 and black pawn at g4. White pawn at b3, white bishop at c3 and white pawn at e3. White pawn at c2 and white pawn at f2. White rook at a1, white queen at d1, white king at f1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 6. Full move number is 18. Black to move.