1r2kbn1/npq1pppr/p2p3p/1Qp5/P1P5/B4PPN/R3P2P/1N2KB1R b K - 2 17
FEN state: 1r2kbn1/npq1pppr/p2p3p/1Qp5/P1P5/B4PPN/R3P2P/1N2KB1R b K - 2 17 ; Best move: a6b5
The current state of the chess board is: Black rook at b8, black king at e8, black bishop at f8 and black knight at g8. Black knight at a7, black pawn at b7, black queen at c7, black pawn at e7, black pawn at f7, black pawn at g7 and black rook at h7. Black pawn at a6, black pawn at d6 and black pawn at h6. White queen at b5 and black pawn at c5. White pawn at a4 and white pawn at c4. White bishop at a3, white pawn at f3, white pawn at g3 and white knight at h3. White rook at a2, white pawn at e2 and white pawn at h2. White knight at b1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 2. Full move number is 17. Black to move.