rn5r/pb1p1npp/2p3k1/Qp1pB1q1/P4pP1/1NP1P3/5P1P/R3KB1R w - - 1 20
FEN state: rn5r/pb1p1npp/2p3k1/Qp1pB1q1/P4pP1/1NP1P3/5P1P/R3KB1R w - - 1 20 ; Best move: f1d3
The current state of the chess board is: Black rook at a8, black knight at b8 and black rook at h8. Black pawn at a7, black bishop at b7, black pawn at d7, black knight at f7, black pawn at g7 and black pawn at h7. Black pawn at c6 and black king at g6. White queen at a5, black pawn at b5, black pawn at d5, white bishop at e5 and black queen at g5. White pawn at a4, black pawn at f4 and white pawn at g4. White knight at b3, white pawn at c3 and white pawn at e3. White pawn at f2 and white pawn at h2. White rook at a1, white king at e1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 20. White to move.