1rb1k1n1/1ppp2pr/5p1p/p1n1p3/P1q2NK1/2N2R2/QP1PB1PP/2B3bR b - - 3 20
FEN state: 1rb1k1n1/1ppp2pr/5p1p/p1n1p3/P1q2NK1/2N2R2/QP1PB1PP/2B3bR b - - 3 20 ; Best move: c4a2
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8 and black knight at g8. Black pawn at b7, black pawn at c7, black pawn at d7, black pawn at g7 and black rook at h7. Black pawn at f6 and black pawn at h6. Black pawn at a5, black knight at c5 and black pawn at e5. White pawn at a4, black queen at c4, white knight at f4 and white king at g4. White knight at c3 and white rook at f3. White queen at a2, white pawn at b2, white pawn at d2, white bishop at e2, white pawn at g2 and white pawn at h2. White bishop at c1, black bishop at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 3. Full move number is 20. Black to move.