3k1b2/r1pqp1pr/1p1p4/p4p1p/P4P1B/2NP4/2P1P1PP/RNnQKB1R w KQ - 3 21
FEN state: 3k1b2/r1pqp1pr/1p1p4/p4p1p/P4P1B/2NP4/2P1P1PP/RNnQKB1R w KQ - 3 21 ; Best move: d1c1
The current state of the chess board is: Black king at d8 and black bishop at f8. Black rook at a7, black pawn at c7, black queen at d7, black pawn at e7, black pawn at g7 and black rook at h7. Black pawn at b6 and black pawn at d6. Black pawn at a5, black pawn at f5 and black pawn at h5. White pawn at a4, white pawn at f4 and white bishop at h4. White knight at c3 and white pawn at d3. White pawn at c2, white pawn at e2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, black knight at c1, white queen at d1, 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 3. Full move number is 21. White to move.