rn2k2r/pb4p1/1bp1pn2/qp2pp1p/1P1N1P2/B2N4/P1PP2PP/1RQ1KBR1 w - - 0 17
FEN state: rn2k2r/pb4p1/1bp1pn2/qp2pp1p/1P1N1P2/B2N4/P1PP2PP/1RQ1KBR1 w - - 0 17 ; Best move: b4a5
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black rook at h8. Black pawn at a7, black bishop at b7 and black pawn at g7. Black bishop at b6, black pawn at c6, black pawn at e6 and black knight at f6. Black queen at a5, black pawn at b5, black pawn at e5, black pawn at f5 and black pawn at h5. White pawn at b4, white knight at d4 and white pawn at f4. White bishop at a3 and white knight at d3. White pawn at a2, white pawn at c2, white pawn at d2, white pawn at g2 and white pawn at h2. White rook at b1, white queen at c1, white king at e1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 17. White to move.