1r1k2nr/pp2ppbp/2pN2p1/q2p3b/1nPQP3/6P1/P2P1P1P/1RB1KB1R w K - 0 17
FEN state: 1r1k2nr/pp2ppbp/2pN2p1/q2p3b/1nPQP3/6P1/P2P1P1P/1RB1KB1R w K - 0 17 ; Best move: d6b7
The current state of the chess board is: Black rook at b8, black king at d8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at e7, black pawn at f7, black bishop at g7 and black pawn at h7. Black pawn at c6, white knight at d6 and black pawn at g6. Black queen at a5, black pawn at d5 and black bishop at h5. Black knight at b4, white pawn at c4, white queen at d4 and white pawn at e4. White pawn at g3. White pawn at a2, white pawn at d2, white pawn at f2 and white pawn at h2. White rook at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 17. White to move.