r1b1kbnr/R3p1p1/1P3p1p/3p4/2PP4/1P3P1P/4Q1P1/1N2KBRN b - - 4 21
FEN state: r1b1kbnr/R3p1p1/1P3p1p/3p4/2PP4/1P3P1P/4Q1P1/1N2KBRN b - - 4 21 ; Best move: a8b8
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. White rook at a7, black pawn at e7 and black pawn at g7. White pawn at b6, black pawn at f6 and black pawn at h6. Black pawn at d5. White pawn at c4 and white pawn at d4. White pawn at b3, white pawn at f3 and white pawn at h3. White queen at e2 and white pawn at g2. White knight at b1, white king at e1, white bishop at f1, white rook at g1 and white knight at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 21. Black to move.