r1b1k2r/pppp1ppp/nb6/Q3q1P1/4pPnP/N2P4/PPPKP3/R1B2BNR b kq - 8 10
FEN state: r1b1k2r/pppp1ppp/nb6/Q3q1P1/4pPnP/N2P4/PPPKP3/R1B2BNR b kq - 8 10 ; Best move: e5f4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at a6 and black bishop at b6. White queen at a5, black queen at e5 and white pawn at g5. Black pawn at e4, white pawn at f4, black knight at g4 and white pawn at h4. White knight at a3 and white pawn at d3. White pawn at a2, white pawn at b2, white pawn at c2, white king at d2 and white pawn at e2. White rook at a1, white bishop at c1, 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 8. Full move number is 10. Black to move.