1rb1kb1r/1p1p3p/p1p2pp1/1n2p1N1/PP1N2P1/3q2P1/2PPP2P/R1BQK2R b KQ - 8 21
FEN state: 1rb1kb1r/1p1p3p/p1p2pp1/1n2p1N1/PP1N2P1/3q2P1/2PPP2P/R1BQK2R b KQ - 8 21 ; Best move: d3d4
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at b7, black pawn at d7 and black pawn at h7. Black pawn at a6, black pawn at c6, black pawn at f6 and black pawn at g6. Black knight at b5, black pawn at e5 and white knight at g5. White pawn at a4, white pawn at b4, white knight at d4 and white pawn at g4. Black queen at d3 and white pawn at g3. White pawn at c2, white pawn at d2, white pawn at e2 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 8. Full move number is 21. Black to move.