r3k1r1/p1pn1p2/b2pp2n/1Q4pp/3PP2q/5P2/PPP1K1PP/RN3BNR b q - 3 19
FEN state: r3k1r1/p1pn1p2/b2pp2n/1Q4pp/3PP2q/5P2/PPP1K1PP/RN3BNR b q - 3 19 ; Best move: a6b5
The current state of the chess board is: Black rook at a8, black king at e8 and black rook at g8. Black pawn at a7, black pawn at c7, black knight at d7 and black pawn at f7. Black bishop at a6, black pawn at d6, black pawn at e6 and black knight at h6. White queen at b5, black pawn at g5 and black pawn at h5. White pawn at d4, white pawn at e4 and black queen at h4. White pawn at f3. White pawn at a2, white pawn at b2, white pawn at c2, white king at e2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at f1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 3. Full move number is 19. Black to move.