1rb2b1r/7p/ppp1p2n/4Npp1/1npPk1qP/1P2P2R/P3QP2/RNBK1B2 b - - 1 20
FEN state: 1rb2b1r/7p/ppp1p2n/4Npp1/1npPk1qP/1P2P2R/P3QP2/RNBK1B2 b - - 1 20 ; Best move: g4e2
The current state of the chess board is: Black rook at b8, black bishop at c8, black bishop at f8 and black rook at h8. Black pawn at h7. Black pawn at a6, black pawn at b6, black pawn at c6, black pawn at e6 and black knight at h6. White knight at e5, black pawn at f5 and black pawn at g5. Black knight at b4, black pawn at c4, white pawn at d4, black king at e4, black queen at g4 and white pawn at h4. White pawn at b3, white pawn at e3 and white rook at h3. White pawn at a2, white queen at e2 and white pawn at f2. White rook at a1, white knight at b1, white bishop at c1, white king 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.