r1b3nr/1p1pk1pq/p1p3B1/3Pp1p1/1P6/PP2P2P/R2B1PP1/1N2K2R w K - 2 20
FEN state: r1b3nr/1p1pk1pq/p1p3B1/3Pp1p1/1P6/PP2P2P/R2B1PP1/1N2K2R w K - 2 20 ; Best move: g6h7
The current state of the chess board is: Black rook at a8, black bishop at c8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at d7, black king at e7, black pawn at g7 and black queen at h7. Black pawn at a6, black pawn at c6 and white bishop at g6. White pawn at d5, black pawn at e5 and black pawn at g5. White pawn at b4. White pawn at a3, white pawn at b3, white pawn at e3 and white pawn at h3. White rook at a2, white bishop at d2, white pawn at f2 and white pawn at g2. White knight at b1, white king at e1 and white rook at h1. White kingside is the only castle move available. Half move number is 2. Full move number is 20. White to move.