r1n2rk1/2qpbnp1/1p2N1Rp/2p1pP2/p4P2/PP1bK3/2PNP2P/R1BQ1B2 b - - 1 20
FEN state: r1n2rk1/2qpbnp1/1p2N1Rp/2p1pP2/p4P2/PP1bK3/2PNP2P/R1BQ1B2 b - - 1 20 ; Best move: e5f4
The current state of the chess board is: Black rook at a8, black knight at c8, black rook at f8 and black king at g8. Black queen at c7, black pawn at d7, black bishop at e7, black knight at f7 and black pawn at g7. Black pawn at b6, white knight at e6, white rook at g6 and black pawn at h6. Black pawn at c5, black pawn at e5 and white pawn at f5. Black pawn at a4 and white pawn at f4. White pawn at a3, white pawn at b3, black bishop at d3 and white king at e3. White pawn at c2, white knight at d2, white pawn at e2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1 and white bishop at f1. Both players have exhausted their castles. Half move number is 1. Full move number is 20. Black to move.