r3kbr1/q3p3/b4n2/1P2P1pp/pQP5/1n1PN3/R3KPPP/5B1R b q - 1 25
FEN state: r3kbr1/q3p3/b4n2/1P2P1pp/pQP5/1n1PN3/R3KPPP/5B1R b q - 1 25 ; Best move: a6b7
The current state of the chess board is: Black rook at a8, black king at e8, black bishop at f8 and black rook at g8. Black queen at a7 and black pawn at e7. Black bishop at a6 and black knight at f6. White pawn at b5, white pawn at e5, black pawn at g5 and black pawn at h5. Black pawn at a4, white queen at b4 and white pawn at c4. Black knight at b3, white pawn at d3 and white knight at e3. White rook at a2, white king at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White bishop at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 1. Full move number is 25. Black to move.