1rbqk1r1/2np4/1ppPp1pp/P7/2NP1p1P/5PnR/P1PQ2P1/R1BK1BN1 b - - 5 20
FEN state: 1rbqk1r1/2np4/1ppPp1pp/P7/2NP1p1P/5PnR/P1PQ2P1/R1BK1BN1 b - - 5 20 ; Best move: c7d5
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8 and black rook at g8. Black knight at c7 and black pawn at d7. Black pawn at b6, black pawn at c6, white pawn at d6, black pawn at e6, black pawn at g6 and black pawn at h6. White pawn at a5. White knight at c4, white pawn at d4, black pawn at f4 and white pawn at h4. White pawn at f3, black knight at g3 and white rook at h3. White pawn at a2, white pawn at c2, white queen at d2 and white pawn at g2. White rook at a1, white bishop at c1, white king at d1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 5. Full move number is 20. Black to move.