r1bqk1nr/pp1p1ppp/2p2b2/4N3/2PPp3/P7/1Pn1PPPP/RNBK1B1R w kq - 4 10
FEN state: r1bqk1nr/pp1p1ppp/2p2b2/4N3/2PPp3/P7/1Pn1PPPP/RNBK1B1R w kq - 4 10 ; Best move: d1c2
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, 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 f7, black pawn at g7 and black pawn at h7. Black pawn at c6 and black bishop at f6. White knight at e5. White pawn at c4, white pawn at d4 and black pawn at e4. White pawn at a3. White pawn at b2, black knight at c2, white pawn at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white king at d1, white bishop at f1 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.