r1b1k3/pp1p1p1r/n1p1p1p1/P1b2q2/1Pn2B1p/2QP1N1P/4PPR1/RN3K2 b q - 3 19
FEN state: r1b1k3/pp1p1p1r/n1p1p1p1/P1b2q2/1Pn2B1p/2QP1N1P/4PPR1/RN3K2 b q - 3 19 ; Best move: c5b4
The current state of the chess board is: Black rook at a8, black bishop at c8 and black king at e8. Black pawn at a7, black pawn at b7, black pawn at d7, black pawn at f7 and black rook at h7. Black knight at a6, black pawn at c6, black pawn at e6 and black pawn at g6. White pawn at a5, black bishop at c5 and black queen at f5. White pawn at b4, black knight at c4, white bishop at f4 and black pawn at h4. White queen at c3, white pawn at d3, white knight at f3 and white pawn at h3. White pawn at e2, white pawn at f2 and white rook at g2. White rook at a1, white knight at b1 and white king at f1. Black queenside is the only castle move available. Half move number is 3. Full move number is 19. Black to move.