r2k1b2/2p2ppr/p1b5/nN1ppn1p/1P2P2q/BRPB1PN1/P2P2PP/Q3K1R1 w - - 0 17
FEN state: r2k1b2/2p2ppr/p1b5/nN1ppn1p/1P2P2q/BRPB1PN1/P2P2PP/Q3K1R1 w - - 0 17 ; Best move: b4a5
The current state of the chess board is: Black rook at a8, black king at d8 and black bishop at f8. Black pawn at c7, black pawn at f7, black pawn at g7 and black rook at h7. Black pawn at a6 and black bishop at c6. Black knight at a5, white knight at b5, black pawn at d5, black pawn at e5, black knight at f5 and black pawn at h5. White pawn at b4, white pawn at e4 and black queen at h4. White bishop at a3, white rook at b3, white pawn at c3, white bishop at d3, white pawn at f3 and white knight at g3. White pawn at a2, white pawn at d2, white pawn at g2 and white pawn at h2. White queen at a1, white king at e1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 17. White to move.