rn2kb2/2q5/2br1p1n/pppp2pp/4PpP1/BPP4P/P1QPK3/RN3B1R w q - 0 18
FEN state: rn2kb2/2q5/2br1p1n/pppp2pp/4PpP1/BPP4P/P1QPK3/RN3B1R w q - 0 18 ; Best move: d2d4
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black bishop at f8. Black queen at c7. Black bishop at c6, black rook at d6, black pawn at f6 and black knight at h6. Black pawn at a5, black pawn at b5, black pawn at c5, black pawn at d5, black pawn at g5 and black pawn at h5. White pawn at e4, black pawn at f4 and white pawn at g4. White bishop at a3, white pawn at b3, white pawn at c3 and white pawn at h3. White pawn at a2, white queen at c2, white pawn at d2 and white king at e2. White rook at a1, white knight at b1, white bishop at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 18. White to move.