rn1q1knr/6b1/pp1p1pp1/2pbp2p/Q1P1P2P/P2P4/1P2NPPR/R1B1KB2 w Q - 2 17
FEN state: rn1q1knr/6b1/pp1p1pp1/2pbp2p/Q1P1P2P/P2P4/1P2NPPR/R1B1KB2 w Q - 2 17 ; Best move: c4d5
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at f8, black knight at g8 and black rook at h8. Black bishop at g7. Black pawn at a6, black pawn at b6, black pawn at d6, black pawn at f6 and black pawn at g6. Black pawn at c5, black bishop at d5, black pawn at e5 and black pawn at h5. White queen at a4, white pawn at c4, white pawn at e4 and white pawn at h4. White pawn at a3 and white pawn at d3. White pawn at b2, white knight at e2, white pawn at f2, white pawn at g2 and white rook at h2. White rook at a1, white bishop at c1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 2. Full move number is 17. White to move.