rq2k1r1/pR2b2p/2pppp1n/6p1/P5bP/1P3PPB/1B1PP1KR/1N1Q2N1 w q - 2 17
FEN state: rq2k1r1/pR2b2p/2pppp1n/6p1/P5bP/1P3PPB/1B1PP1KR/1N1Q2N1 w q - 2 17 ; Best move: b7b8
The current state of the chess board is: Black rook at a8, black queen at b8, black king at e8 and black rook at g8. Black pawn at a7, white rook at b7, black bishop at e7 and black pawn at h7. Black pawn at c6, black pawn at d6, black pawn at e6, black pawn at f6 and black knight at h6. Black pawn at g5. White pawn at a4, black bishop at g4 and white pawn at h4. White pawn at b3, white pawn at f3, white pawn at g3 and white bishop at h3. White bishop at b2, white pawn at d2, white pawn at e2, white king at g2 and white rook at h2. White knight at b1, white queen at d1 and white knight at g1. Black queenside is the only castle move available. Half move number is 2. Full move number is 17. White to move.