r1b4r/1p2np1p/p1n4b/2p1p1k1/1P1P4/q1P1PPP1/P2N4/R1BQK1NR b Q - 0 16
FEN state: r1b4r/1p2np1p/p1n4b/2p1p1k1/1P1P4/q1P1PPP1/P2N4/R1BQK1NR b Q - 0 16 ; Best move: a3c3
The current state of the chess board is: Black rook at a8, black bishop at c8 and black rook at h8. Black pawn at b7, black knight at e7, black pawn at f7 and black pawn at h7. Black pawn at a6, black knight at c6 and black bishop at h6. Black pawn at c5, black pawn at e5 and black king at g5. White pawn at b4 and white pawn at d4. Black queen at a3, white pawn at c3, white pawn at e3, white pawn at f3 and white pawn at g3. White pawn at a2 and white knight at d2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. White queenside is the only castle move available. Half move number is 0. Full move number is 16. Black to move.