r1bq1bnr/1ppkp3/p4p1p/3p2p1/PB2P2P/1P3N2/2QPKPP1/RN3BR1 b - - 0 10
FEN state: r1bq1bnr/1ppkp3/p4p1p/3p2p1/PB2P2P/1P3N2/2QPKPP1/RN3BR1 b - - 0 10 ; Best move: e7e6
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black king at d7 and black pawn at e7. Black pawn at a6, black pawn at f6 and black pawn at h6. Black pawn at d5 and black pawn at g5. White pawn at a4, white bishop at b4, white pawn at e4 and white pawn at h4. White pawn at b3 and white knight at f3. White queen at c2, white pawn at d2, white king at e2, white pawn at f2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 10. Black to move.