r1b1kbr1/6pp/2ppp2n/qp2Np1P/QPPn1P2/P2P2PR/4P3/RNB1KB2 b Q - 0 17
FEN state: r1b1kbr1/6pp/2ppp2n/qp2Np1P/QPPn1P2/P2P2PR/4P3/RNB1KB2 b Q - 0 17 ; Best move: a5a4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at g7 and black pawn at h7. Black pawn at c6, black pawn at d6, black pawn at e6 and black knight at h6. Black queen at a5, black pawn at b5, white knight at e5, black pawn at f5 and white pawn at h5. White queen at a4, white pawn at b4, white pawn at c4, black knight at d4 and white pawn at f4. White pawn at a3, white pawn at d3, white pawn at g3 and white rook at h3. White pawn at e2. White rook at a1, white knight at b1, white bishop at c1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 0. Full move number is 17. Black to move.