r4b1r/p1q1pkpp/2p2p1n/2np2P1/1PpPP1b1/B4N2/P1Q1KPBP/R6R w - - 0 17
FEN state: r4b1r/p1q1pkpp/2p2p1n/2np2P1/1PpPP1b1/B4N2/P1Q1KPBP/R6R w - - 0 17 ; Best move: d4c5
The current state of the chess board is: Black rook at a8, black bishop at f8 and black rook at h8. Black pawn at a7, black queen at c7, black pawn at e7, black king at f7, black pawn at g7 and black pawn at h7. Black pawn at c6, black pawn at f6 and black knight at h6. Black knight at c5, black pawn at d5 and white pawn at g5. White pawn at b4, black pawn at c4, white pawn at d4, white pawn at e4 and black bishop at g4. White bishop at a3 and white knight at f3. White pawn at a2, white queen at c2, white king at e2, white pawn at f2, white bishop at g2 and white pawn at h2. White rook at a1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 17. White to move.