2bqkbn1/1ppppr2/r4pPp/8/1PP2P1P/Q7/P2PP2N/RNB1KB1R b KQ - 4 15
FEN state: 2bqkbn1/1ppppr2/r4pPp/8/1PP2P1P/Q7/P2PP2N/RNB1KB1R b KQ - 4 15 ; Best move: a6a3
The current state of the chess board is: Black bishop at c8, black queen at d8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at b7, black pawn at c7, black pawn at d7, black pawn at e7 and black rook at f7. Black rook at a6, black pawn at f6, white pawn at g6 and black pawn at h6. White pawn at b4, white pawn at c4, white pawn at f4 and white pawn at h4. White queen at a3. White pawn at a2, white pawn at d2, white pawn at e2 and white knight at h2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 4. Full move number is 15. Black to move.