r1b1k2r/ppnppN1n/8/q1p3bp/P7/BP1PP3/R1PQNKPP/5B1R w q - 7 18
FEN state: r1b1k2r/ppnppN1n/8/q1p3bp/P7/BP1PP3/R1PQNKPP/5B1R w q - 7 18 ; Best move: d2a5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at b7, black knight at c7, black pawn at d7, black pawn at e7, white knight at f7 and black knight at h7. Black queen at a5, black pawn at c5, black bishop at g5 and black pawn at h5. White pawn at a4. White bishop at a3, white pawn at b3, white pawn at d3 and white pawn at e3. White rook at a2, white pawn at c2, white queen at d2, white knight 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 queenside is the only castle move available. Half move number is 7. Full move number is 18. White to move.