rnb1kbr1/2pp4/p4n1p/1p2pp2/P2PP3/R5P1/1P1B1PBP/3QK1NR b q - 0 18
FEN state: rnb1kbr1/2pp4/p4n1p/1p2pp2/P2PP3/R5P1/1P1B1PBP/3QK1NR b q - 0 18 ; Best move: b8c6
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at c7 and black pawn at d7. Black pawn at a6, black knight at f6 and black pawn at h6. Black pawn at b5, black pawn at e5 and black pawn at f5. White pawn at a4, white pawn at d4 and white pawn at e4. White rook at a3 and white pawn at g3. White pawn at b2, white bishop at d2, white pawn at f2, white bishop at g2 and white pawn at h2. White queen at d1, white king at e1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 18. Black to move.