r1bq1rk1/pppp1p2/Q3p1p1/7p/2PP2PP/N3P1b1/PPn1KP2/R1B1nBNR w - - 0 17
FEN state: r1bq1rk1/pppp1p2/Q3p1p1/7p/2PP2PP/N3P1b1/PPn1KP2/R1B1nBNR w - - 0 17 ; Best move: a6a4
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black rook at f8 and black king at g8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7 and black pawn at f7. White queen at a6, black pawn at e6 and black pawn at g6. Black pawn at h5. White pawn at c4, white pawn at d4, white pawn at g4 and white pawn at h4. White knight at a3, white pawn at e3 and black bishop at g3. White pawn at a2, white pawn at b2, black knight at c2, white king at e2 and white pawn at f2. White rook at a1, white bishop at c1, black knight at e1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 17. White to move.