rnbq1b1r/2pk1p1p/p2pp1p1/R7/4P1n1/3B1N2/1PPP1PPP/1NBQKR2 b - - 2 10
FEN state: rnbq1b1r/2pk1p1p/p2pp1p1/R7/4P1n1/3B1N2/1PPP1PPP/1NBQKR2 b - - 2 10 ; Best move: c8b7
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 bishop at f8 and black rook at h8. Black pawn at c7, black king at d7, black pawn at f7 and black pawn at h7. Black pawn at a6, black pawn at d6, black pawn at e6 and black pawn at g6. White rook at a5. White pawn at e4 and black knight at g4. White bishop at d3 and white knight at f3. White pawn at b2, white pawn at c2, white pawn at d2, white pawn at f2, white pawn at g2 and white pawn at h2. White knight at b1, white bishop at c1, white queen at d1, white king at e1 and white rook at f1. Both players have exhausted their castles. Half move number is 2. Full move number is 10. Black to move.