1r1k2nr/2q1p2p/1p1pbp1b/p1p3p1/P3K1PP/2N1P3/RP1P2BR/n1B1Q1N1 b - - 1 20
FEN state: 1r1k2nr/2q1p2p/1p1pbp1b/p1p3p1/P3K1PP/2N1P3/RP1P2BR/n1B1Q1N1 b - - 1 20 ; Best move: a1c2
The current state of the chess board is: Black rook at b8, black king at d8, black knight at g8 and black rook at h8. Black queen at c7, black pawn at e7 and black pawn at h7. Black pawn at b6, black pawn at d6, black bishop at e6, black pawn at f6 and black bishop at h6. Black pawn at a5, black pawn at c5 and black pawn at g5. White pawn at a4, white king at e4, white pawn at g4 and white pawn at h4. White knight at c3 and white pawn at e3. White rook at a2, white pawn at b2, white pawn at d2, white bishop at g2 and white rook at h2. Black knight at a1, white bishop at c1, white queen at e1 and white knight at g1. Both players have exhausted their castles. Half move number is 1. Full move number is 20. Black to move.