1nq1k2r/r1ppp3/pp1P1p2/6bp/6PP/P1N2K2/1P1PP1BR/RbB1Q1N1 w k - 1 21
FEN state: 1nq1k2r/r1ppp3/pp1P1p2/6bp/6PP/P1N2K2/1P1PP1BR/RbB1Q1N1 w k - 1 21 ; Best move: h4g5
The current state of the chess board is: Black knight at b8, black queen at c8, black king at e8 and black rook at h8. Black rook at a7, black pawn at c7, black pawn at d7 and black pawn at e7. Black pawn at a6, black pawn at b6, white pawn at d6 and black pawn at f6. Black bishop at g5 and black pawn at h5. White pawn at g4 and white pawn at h4. White pawn at a3, white knight at c3 and white king at f3. White pawn at b2, white pawn at d2, white pawn at e2, white bishop at g2 and white rook at h2. White rook at a1, black bishop at b1, white bishop at c1, white queen at e1 and white knight at g1. Black kingside is the only castle move available. Half move number is 1. Full move number is 21. White to move.