r1qk1b2/pbp2prB/2np1N2/3P2p1/1pP3n1/PP2P1P1/3N1P1P/R1BQK2R w KQ - 3 21
FEN state: r1qk1b2/pbp2prB/2np1N2/3P2p1/1pP3n1/PP2P1P1/3N1P1P/R1BQK2R w KQ - 3 21 ; Best move: d5c6
The current state of the chess board is: Black rook at a8, black queen at c8, black king at d8 and black bishop at f8. Black pawn at a7, black bishop at b7, black pawn at c7, black pawn at f7, black rook at g7 and white bishop at h7. Black knight at c6, black pawn at d6 and white knight at f6. White pawn at d5 and black pawn at g5. Black pawn at b4, white pawn at c4 and black knight at g4. White pawn at a3, white pawn at b3, white pawn at e3 and white pawn at g3. White knight at d2, white pawn at f2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white king at e1 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.