rn2k1q1/p5p1/3P1n1r/1pp1pp2/3P3P/3K1N2/PPP2PP1/1R2NB1R b - - 5 21
FEN state: rn2k1q1/p5p1/3P1n1r/1pp1pp2/3P3P/3K1N2/PPP2PP1/1R2NB1R b - - 5 21 ; Best move: g8a2
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black queen at g8. Black pawn at a7 and black pawn at g7. White pawn at d6, black knight at f6 and black rook at h6. Black pawn at b5, black pawn at c5, black pawn at e5 and black pawn at f5. White pawn at d4 and white pawn at h4. White king at d3 and white knight at f3. White pawn at a2, white pawn at b2, white pawn at c2, white pawn at f2 and white pawn at g2. White rook at b1, white knight at e1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 5. Full move number is 21. Black to move.