1Nrqkbn1/p1p2p1r/1p1p1nP1/4p3/4P1p1/N1P5/P2P3P/R1BQKBR1 w Q - 0 16
FEN state: 1Nrqkbn1/p1p2p1r/1p1p1nP1/4p3/4P1p1/N1P5/P2P3P/R1BQKBR1 w Q - 0 16 ; Best move: d1a4
The current state of the chess board is: White knight at b8, black rook at c8, black queen at d8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at c7, black pawn at f7 and black rook at h7. Black pawn at b6, black pawn at d6, black knight at f6 and white pawn at g6. Black pawn at e5. White pawn at e4 and black pawn at g4. White knight at a3 and white pawn at c3. White pawn at a2, white pawn at d2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at g1. White queenside is the only castle move available. Half move number is 0. Full move number is 16. White to move.