2b1k1nr/r1pq2pp/ppn1pp2/1P6/PbpP1PP1/4P2B/1BQ1N2P/RN1K3R b k - 1 15
FEN state: 2b1k1nr/r1pq2pp/ppn1pp2/1P6/PbpP1PP1/4P2B/1BQ1N2P/RN1K3R b k - 1 15 ; Best move: a6b5
The current state of the chess board is: Black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black rook at a7, black pawn at c7, black queen at d7, black pawn at g7 and black pawn at h7. Black pawn at a6, black pawn at b6, black knight at c6, black pawn at e6 and black pawn at f6. White pawn at b5. White pawn at a4, black bishop at b4, black pawn at c4, white pawn at d4, white pawn at f4 and white pawn at g4. White pawn at e3 and white bishop at h3. White bishop at b2, white queen at c2, white knight at e2 and white pawn at h2. White rook at a1, white knight at b1, white king at d1 and white rook at h1. Black kingside is the only castle move available. Half move number is 1. Full move number is 15. Black to move.