1rb1kb2/pp1p2p1/n2p4/Q1p2p2/6np/BPPP4/P2r4/RNK2B1R w - - 2 20
FEN state: 1rb1kb2/pp1p2p1/n2p4/Q1p2p2/6np/BPPP4/P2r4/RNK2B1R w - - 2 20 ; Best move: b1d2
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at b7, black pawn at d7 and black pawn at g7. Black knight at a6 and black pawn at d6. White queen at a5, black pawn at c5 and black pawn at f5. Black knight at g4 and black pawn at h4. White bishop at a3, white pawn at b3, white pawn at c3 and white pawn at d3. White pawn at a2 and black rook at d2. White rook at a1, white knight at b1, white king at c1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 20. White to move.