1nb2bn1/1pk1p1p1/1qp1r3/5pNp/rPPNpP2/3B3P/PB1P2P1/1R2K2R b - - 10 23
FEN state: 1nb2bn1/1pk1p1p1/1qp1r3/5pNp/rPPNpP2/3B3P/PB1P2P1/1R2K2R b - - 10 23 ; Best move: e6f6
The current state of the chess board is: Black knight at b8, black bishop at c8, black bishop at f8 and black knight at g8. Black pawn at b7, black king at c7, black pawn at e7 and black pawn at g7. Black queen at b6, black pawn at c6 and black rook at e6. Black pawn at f5, white knight at g5 and black pawn at h5. Black rook at a4, white pawn at b4, white pawn at c4, white knight at d4, black pawn at e4 and white pawn at f4. White bishop at d3 and white pawn at h3. White pawn at a2, white bishop at b2, white pawn at d2 and white pawn at g2. White rook at b1, white king at e1 and white rook at h1. Both players have exhausted their castles. Half move number is 10. Full move number is 23. Black to move.