r3kbn1/1pp1pr2/2n4q/pb1p1ppp/Q1P5/3PNPPP/PP2P1K1/1RB2BNR b q - 8 17
FEN state: r3kbn1/1pp1pr2/2n4q/pb1p1ppp/Q1P5/3PNPPP/PP2P1K1/1RB2BNR b q - 8 17 ; Best move: b5a4
The current state of the chess board is: Black rook at a8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at b7, black pawn at c7, black pawn at e7 and black rook at f7. Black knight at c6 and black queen at h6. Black pawn at a5, black bishop at b5, black pawn at d5, black pawn at f5, black pawn at g5 and black pawn at h5. White queen at a4 and white pawn at c4. White pawn at d3, white knight at e3, white pawn at f3, white pawn at g3 and white pawn at h3. White pawn at a2, white pawn at b2, white pawn at e2 and white king at g2. White rook at b1, white bishop at c1, white bishop at f1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 8. Full move number is 17. Black to move.