r1b3n1/2p1b1pr/pp1k4/nP4pp/2PpPpPP/R1N5/1P1P2BR/2BQ1K2 b - - 0 21
FEN state: r1b3n1/2p1b1pr/pp1k4/nP4pp/2PpPpPP/R1N5/1P1P2BR/2BQ1K2 b - - 0 21 ; Best move: d6e5
The current state of the chess board is: Black rook at a8, black bishop at c8 and black knight at g8. Black pawn at c7, black bishop at e7, black pawn at g7 and black rook at h7. Black pawn at a6, black pawn at b6 and black king at d6. Black knight at a5, white pawn at b5, black pawn at g5 and black pawn at h5. White pawn at c4, black pawn at d4, white pawn at e4, black pawn at f4, white pawn at g4 and white pawn at h4. White rook at a3 and white knight at c3. White pawn at b2, white pawn at d2, white bishop at g2 and white rook at h2. White bishop at c1, white queen at d1 and white king at f1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. Black to move.