rnbqkb2/ppp1prn1/6p1/P2p1p1p/NP3PN1/6PP/R1PPP3/2BQKBR1 b - - 4 17
FEN state: rnbqkb2/ppp1prn1/6p1/P2p1p1p/NP3PN1/6PP/R1PPP3/2BQKBR1 b - - 4 17 ; Best move: f5g4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at e7, black rook at f7 and black knight at g7. Black pawn at g6. White pawn at a5, black pawn at d5, black pawn at f5 and black pawn at h5. White knight at a4, white pawn at b4, white pawn at f4 and white knight at g4. White pawn at g3 and white pawn at h3. White rook at a2, white pawn at c2, white pawn at d2 and white pawn at e2. 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 17. Black to move.