r2qkb1r/p2bppp1/1pp2n2/3p3p/Q1PP2nP/N3B3/PP2PPP1/2KR1BNR b kq - 0 10
FEN state: r2qkb1r/p2bppp1/1pp2n2/3p3p/Q1PP2nP/N3B3/PP2PPP1/2KR1BNR b kq - 0 10 ; Best move: g4e3
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black bishop at d7, black pawn at e7, black pawn at f7 and black pawn at g7. Black pawn at b6, black pawn at c6 and black knight at f6. Black pawn at d5 and black pawn at h5. White queen at a4, white pawn at c4, white pawn at d4, black knight at g4 and white pawn at h4. White knight at a3 and white bishop at e3. White pawn at a2, white pawn at b2, white pawn at e2, white pawn at f2 and white pawn at g2. White king at c1, white rook at d1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 10. Black to move.