r1bqk1nr/1pp3b1/2n1pppp/pP6/P1Pp2P1/N2P1P1P/Q3PK2/R1B2BNR b k - 2 16
FEN state: r1bqk1nr/1pp3b1/2n1pppp/pP6/P1Pp2P1/N2P1P1P/Q3PK2/R1B2BNR b k - 2 16 ; Best move: c6b4
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7 and black bishop at g7. Black knight at c6, black pawn at e6, black pawn at f6, black pawn at g6 and black pawn at h6. Black pawn at a5 and white pawn at b5. White pawn at a4, white pawn at c4, black pawn at d4 and white pawn at g4. White knight at a3, white pawn at d3, white pawn at f3 and white pawn at h3. White queen at a2, white pawn at e2 and white king at f2. White rook at a1, white bishop at c1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 2. Full move number is 16. Black to move.