rnb1k1n1/pppp2pr/BN6/5p1p/3qp2P/RP2PN2/1bPP1PP1/2BQK1R1 b q - 1 16
FEN state: rnb1k1n1/pppp2pr/BN6/5p1p/3qp2P/RP2PN2/1bPP1PP1/2BQK1R1 b q - 1 16 ; Best move: d4b6
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black knight at g8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at g7 and black rook at h7. White bishop at a6 and white knight at b6. Black pawn at f5 and black pawn at h5. Black queen at d4, black pawn at e4 and white pawn at h4. White rook at a3, white pawn at b3, white pawn at e3 and white knight at f3. Black bishop at b2, white pawn at c2, white pawn at d2, white pawn at f2 and white pawn at g2. White bishop at c1, white queen at d1, white king at e1 and white rook at g1. Black queenside is the only castle move available. Half move number is 1. Full move number is 16. Black to move.