r1N1kbnr/pp2pp2/3p1n1B/1PPQ1Pp1/2b5/2q2N2/1RP1PKPP/5B1R w kq - 3 18
FEN state: r1N1kbnr/pp2pp2/3p1n1B/1PPQ1Pp1/2b5/2q2N2/1RP1PKPP/5B1R w kq - 3 18 ; Best move: d5d4
The current state of the chess board is: Black rook at a8, white knight at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at e7 and black pawn at f7. Black pawn at d6, black knight at f6 and white bishop at h6. White pawn at b5, white pawn at c5, white queen at d5, white pawn at f5 and black pawn at g5. Black bishop at c4. Black queen at c3 and white knight at f3. White rook at b2, white pawn at c2, white pawn at e2, white king at f2, white pawn at g2 and white pawn at h2. White bishop at f1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 3. Full move number is 18. White to move.