2b2bnr/1r1np2p/p2qk1p1/1ppp1p2/P1NP1P2/1PP4P/2R1P1P1/1NBQKBR1 b - - 4 16
FEN state: 2b2bnr/1r1np2p/p2qk1p1/1ppp1p2/P1NP1P2/1PP4P/2R1P1P1/1NBQKBR1 b - - 4 16 ; Best move: b5c4
The current state of the chess board is: Black bishop at c8, black bishop at f8, black knight at g8 and black rook at h8. Black rook at b7, black knight at d7, black pawn at e7 and black pawn at h7. Black pawn at a6, black queen at d6, black king at e6 and black pawn at g6. Black pawn at b5, black pawn at c5, black pawn at d5 and black pawn at f5. White pawn at a4, white knight at c4, white pawn at d4 and white pawn at f4. White pawn at b3, white pawn at c3 and white pawn at h3. White rook at c2, white pawn at e2 and white pawn at g2. White knight at b1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 4. Full move number is 16. Black to move.