5bnr/rpp1k3/3pqp1p/p1P4P/4pPp1/PP4P1/1NQPR3/R1B1KBN1 w Q - 1 21
FEN state: 5bnr/rpp1k3/3pqp1p/p1P4P/4pPp1/PP4P1/1NQPR3/R1B1KBN1 w Q - 1 21 ; Best move: e2e4
The current state of the chess board is: Black bishop at f8, black knight at g8 and black rook at h8. Black rook at a7, black pawn at b7, black pawn at c7 and black king at e7. Black pawn at d6, black queen at e6, black pawn at f6 and black pawn at h6. Black pawn at a5, white pawn at c5 and white pawn at h5. Black pawn at e4, white pawn at f4 and black pawn at g4. White pawn at a3, white pawn at b3 and white pawn at g3. White knight at b2, white queen at c2, white pawn at d2 and white rook at e2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1 and white knight at g1. White queenside is the only castle move available. Half move number is 1. Full move number is 21. White to move.