rn4Q1/pb5p/2pk4/3pp1p1/6PP/3PP3/PqP2PB1/R1B1K1NR w Q - 3 20
FEN state: rn4Q1/pb5p/2pk4/3pp1p1/6PP/3PP3/PqP2PB1/R1B1K1NR w Q - 3 20 ; Best move: c1b2
The current state of the chess board is: Black rook at a8, black knight at b8 and white queen at g8. Black pawn at a7, black bishop at b7 and black pawn at h7. Black pawn at c6 and black king at d6. Black pawn at d5, black pawn at e5 and black pawn at g5. White pawn at g4 and white pawn at h4. White pawn at d3 and white pawn at e3. White pawn at a2, black queen at b2, white pawn at c2, white pawn at f2 and white bishop at g2. White rook at a1, white bishop at c1, white king at e1, white knight at g1 and white rook at h1. White queenside is the only castle move available. Half move number is 3. Full move number is 20. White to move.