rnb1k1nr/Rp2p1b1/3p2Pp/2p2p1Q/4PP2/3P4/1Pq3PK/1NBB2NR w kq - 0 18
FEN state: rnb1k1nr/Rp2p1b1/3p2Pp/2p2p1Q/4PP2/3P4/1Pq3PK/1NBB2NR w kq - 0 18 ; Best move: a7a8
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. White rook at a7, black pawn at b7, black pawn at e7 and black bishop at g7. Black pawn at d6, white pawn at g6 and black pawn at h6. Black pawn at c5, black pawn at f5 and white queen at h5. White pawn at e4 and white pawn at f4. White pawn at d3. White pawn at b2, black queen at c2, white pawn at g2 and white king at h2. White knight at b1, white bishop at c1, white bishop at d1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 18. White to move.