r1b1kb2/pp1qp2r/nP1p2p1/2p2p2/3P2P1/P1B1PP2/2R1B3/3QK1N1 b q - 0 19
FEN state: r1b1kb2/pp1qp2r/nP1p2p1/2p2p2/3P2P1/P1B1PP2/2R1B3/3QK1N1 b q - 0 19 ; Best move: a7b6
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at b7, black queen at d7, black pawn at e7 and black rook at h7. Black knight at a6, white pawn at b6, black pawn at d6 and black pawn at g6. Black pawn at c5 and black pawn at f5. White pawn at d4 and white pawn at g4. White pawn at a3, white bishop at c3, white pawn at e3 and white pawn at f3. White rook at c2 and white bishop at e2. White queen at d1, white king at e1 and white knight at g1. Black queenside is the only castle move available. Half move number is 0. Full move number is 19. Black to move.