r1b1k2r/p4n2/q3ppp1/Np1pP1Pp/1bP4P/4QB2/3P1PR1/R1B2KN1 w kq - 5 23
FEN state: r1b1k2r/p4n2/q3ppp1/Np1pP1Pp/1bP4P/4QB2/3P1PR1/R1B2KN1 w kq - 5 23 ; Best move: a5b3
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 and black knight at f7. Black queen at a6, black pawn at e6, black pawn at f6 and black pawn at g6. White knight at a5, black pawn at b5, black pawn at d5, white pawn at e5, white pawn at g5 and black pawn at h5. Black bishop at b4, white pawn at c4 and white pawn at h4. White queen at e3 and white bishop at f3. White pawn at d2, white pawn at f2 and white rook at g2. White rook at a1, white bishop at c1, white king at f1 and white knight at g1. Black kingside and black queenside castles are available. Half move number is 5. Full move number is 23. White to move.