r4knr/3n1pp1/1p5p/2P1Pq1P/P1b5/1P4P1/3NQP1b/R1B1KB1R b KQ - 0 21
FEN state: r4knr/3n1pp1/1p5p/2P1Pq1P/P1b5/1P4P1/3NQP1b/R1B1KB1R b KQ - 0 21 ; Best move: c4e2
The current state of the chess board is: Black rook at a8, black king at f8, black knight at g8 and black rook at h8. Black knight at d7, black pawn at f7 and black pawn at g7. Black pawn at b6 and black pawn at h6. White pawn at c5, white pawn at e5, black queen at f5 and white pawn at h5. White pawn at a4 and black bishop at c4. White pawn at b3 and white pawn at g3. White knight at d2, white queen at e2, white pawn at f2 and black bishop at h2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 21. Black to move.