r3kb2/pp3ppr/n4n2/1q1pp2p/P2p1P1B/RPP3PN/2b1P2P/1NK1QB1R b q - 2 15
FEN state: r3kb2/pp3ppr/n4n2/1q1pp2p/P2p1P1B/RPP3PN/2b1P2P/1NK1QB1R b q - 2 15 ; Best move: f8a3
The current state of the chess board is: Black rook at a8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at b7, black pawn at f7, black pawn at g7 and black rook at h7. Black knight at a6 and black knight at f6. Black queen at b5, black pawn at d5, black pawn at e5 and black pawn at h5. White pawn at a4, black pawn at d4, white pawn at f4 and white bishop at h4. White rook at a3, white pawn at b3, white pawn at c3, white pawn at g3 and white knight at h3. Black bishop at c2, white pawn at e2 and white pawn at h2. White knight at b1, white king at c1, white queen at e1, white bishop at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 2. Full move number is 15. Black to move.