r2q1bnr/3b4/p1n2k1p/1Qpp1pp1/P1P1p3/5PPP/NP1PP2R/R1B1KBN1 w Q - 2 17
FEN state: r2q1bnr/3b4/p1n2k1p/1Qpp1pp1/P1P1p3/5PPP/NP1PP2R/R1B1KBN1 w Q - 2 17 ; Best move: b5b3
The current state of the chess board is: Black rook at a8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black bishop at d7. Black pawn at a6, black knight at c6, black king at f6 and black pawn at h6. White queen at b5, black pawn at c5, black pawn at d5, black pawn at f5 and black pawn at g5. White pawn at a4, white pawn at c4 and black pawn at e4. White pawn at f3, white pawn at g3 and white pawn at h3. White knight at a2, white pawn at b2, white pawn at d2, white pawn at e2 and white rook at h2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1 and white knight at g1. White queenside is the only castle move available. Half move number is 2. Full move number is 17. White to move.