1nbk3r/r2p1ppp/pp3qP1/1p1NQ3/6nP/5N2/PP1PPPR1/R1B1KB2 w Q - 1 20
FEN state: 1nbk3r/r2p1ppp/pp3qP1/1p1NQ3/6nP/5N2/PP1PPPR1/R1B1KB2 w Q - 1 20 ; Best move: e5b8
The current state of the chess board is: Black knight at b8, black bishop at c8, black king at d8 and black rook at h8. Black rook at a7, black pawn at d7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at a6, black pawn at b6, black queen at f6 and white pawn at g6. Black pawn at b5, white knight at d5 and white queen at e5. Black knight at g4 and white pawn at h4. White knight at f3. White pawn at a2, white pawn at b2, white pawn at d2, white pawn at e2, white pawn at f2 and white rook at g2. White rook at a1, white bishop at c1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 1. Full move number is 20. White to move.