rn2kb1r/ppq1pp1p/3p2p1/5b2/2pnP1P1/P1P2P1P/1P1P1K2/RNBQ2NR b kq - 2 10
FEN state: rn2kb1r/ppq1pp1p/3p2p1/5b2/2pnP1P1/P1P2P1P/1P1P1K2/RNBQ2NR b kq - 2 10 ; Best move: d4b3
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black queen at c7, black pawn at e7, black pawn at f7 and black pawn at h7. Black pawn at d6 and black pawn at g6. Black bishop at f5. Black pawn at c4, black knight at d4, white pawn at e4 and white pawn at g4. White pawn at a3, white pawn at c3, white pawn at f3 and white pawn at h3. White pawn at b2, white pawn at d2 and white king at f2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 2. Full move number is 10. Black to move.