rnb2bnr/1pp2ppp/3kp3/P2p4/4Q3/2B2K1P/P1PP1PP1/RN3BNR b - - 0 10
FEN state: rnb2bnr/1pp2ppp/3kp3/P2p4/4Q3/2B2K1P/P1PP1PP1/RN3BNR b - - 0 10 ; Best move: d5e4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black pawn at f7, black pawn at g7 and black pawn at h7. Black king at d6 and black pawn at e6. White pawn at a5 and black pawn at d5. White queen at e4. White bishop at c3, white king at f3 and white pawn at h3. White pawn at a2, white pawn at c2, white pawn at d2, white pawn at f2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 10. Black to move.