r1b1k1nr/p2p1p2/n1p1p2p/qpb1N1p1/5PP1/2NP4/PPP1PKBP/1RBQ3R w kq - 4 10
FEN state: r1b1k1nr/p2p1p2/n1p1p2p/qpb1N1p1/5PP1/2NP4/PPP1PKBP/1RBQ3R w kq - 4 10 ; Best move: d3d4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at d7 and black pawn at f7. Black knight at a6, black pawn at c6, black pawn at e6 and black pawn at h6. Black queen at a5, black pawn at b5, black bishop at c5, white knight at e5 and black pawn at g5. White pawn at f4 and white pawn at g4. White knight at c3 and white pawn at d3. White pawn at a2, white pawn at b2, white pawn at c2, white pawn at e2, white king at f2, white bishop at g2 and white pawn at h2. White rook at b1, white bishop at c1, white queen at d1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 4. Full move number is 10. White to move.