1n2kbnr/1p1b2p1/3p2Rp/rqp1p3/p4pPP/2PP1P2/P2QP1B1/1RB1K1N1 w k - 4 16
FEN state: 1n2kbnr/1p1b2p1/3p2Rp/rqp1p3/p4pPP/2PP1P2/P2QP1B1/1RB1K1N1 w k - 4 16 ; Best move: b1b5
The current state of the chess board is: Black knight at b8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black bishop at d7 and black pawn at g7. Black pawn at d6, white rook at g6 and black pawn at h6. Black rook at a5, black queen at b5, black pawn at c5 and black pawn at e5. Black pawn at a4, black pawn at f4, white pawn at g4 and white pawn at h4. White pawn at c3, white pawn at d3 and white pawn at f3. White pawn at a2, white queen at d2, white pawn at e2 and white bishop at g2. White rook at b1, white bishop at c1, white king at e1 and white knight at g1. Black kingside is the only castle move available. Half move number is 4. Full move number is 16. White to move.