rnb1k1nr/pp1pppb1/7p/2p3p1/2B1P3/1P5N/P1PPqPPP/1RBQKR2 w kq - 0 10
FEN state: rnb1k1nr/pp1pppb1/7p/2p3p1/2B1P3/1P5N/P1PPqPPP/1RBQKR2 w kq - 0 10 ; Best move: d1e2
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at d7, black pawn at e7, black pawn at f7 and black bishop at g7. Black pawn at h6. Black pawn at c5 and black pawn at g5. White bishop at c4 and white pawn at e4. White pawn at b3 and white knight at h3. White pawn at a2, white pawn at c2, white pawn at d2, black queen at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at b1, white bishop at c1, white queen at d1, white king at e1 and white rook at f1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 10. White to move.