rnbq2n1/pppp2pr/4pp1p/2P5/Pb5k/B7/2QPPPPP/RN1K1B1R b - - 0 10
FEN state: rnbq2n1/pppp2pr/4pp1p/2P5/Pb5k/B7/2QPPPPP/RN1K1B1R b - - 0 10 ; Best move: f6f5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8 and black knight at g8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at g7 and black rook at h7. Black pawn at e6, black pawn at f6 and black pawn at h6. White pawn at c5. White pawn at a4, black bishop at b4 and black king at h4. White bishop at a3. White queen at c2, white pawn at d2, white pawn at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white king at d1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 10. Black to move.