2b1q1r1/r1p2k1p/p4pp1/p2p4/Pn1PP1n1/1RN4N/1PP2P1P/3K1Q1R b - - 3 20
FEN state: 2b1q1r1/r1p2k1p/p4pp1/p2p4/Pn1PP1n1/1RN4N/1PP2P1P/3K1Q1R b - - 3 20 ; Best move: d5e4
The current state of the chess board is: Black bishop at c8, black queen at e8 and black rook at g8. Black rook at a7, black pawn at c7, black king at f7 and black pawn at h7. Black pawn at a6, black pawn at f6 and black pawn at g6. Black pawn at a5 and black pawn at d5. White pawn at a4, black knight at b4, white pawn at d4, white pawn at e4 and black knight at g4. White rook at b3, white knight at c3 and white knight at h3. White pawn at b2, white pawn at c2, white pawn at f2 and white pawn at h2. White king at d1, white queen at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 3. Full move number is 20. Black to move.