rn2kb1r/3b1n1R/p1ppq3/3P2P1/p2P4/1P3p2/5P2/R1BQ1KN1 b kq - 2 21
FEN state: rn2kb1r/3b1n1R/p1ppq3/3P2P1/p2P4/1P3p2/5P2/R1BQ1KN1 b kq - 2 21 ; Best move: c6d5
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black bishop at f8 and black rook at h8. Black bishop at d7, black knight at f7 and white rook at h7. Black pawn at a6, black pawn at c6, black pawn at d6 and black queen at e6. White pawn at d5 and white pawn at g5. Black pawn at a4 and white pawn at d4. White pawn at b3 and black pawn at f3. White pawn at f2. White rook at a1, white bishop at c1, white queen at d1, white king at f1 and white knight at g1. Black kingside and black queenside castles are available. Half move number is 2. Full move number is 21. Black to move.