r1bk4/ppp2p2/5b2/3qB1pp/Pn1N3P/1P2P3/N1PP1nP1/R2QKBR1 w Q - 3 21
FEN state: r1bk4/ppp2p2/5b2/3qB1pp/Pn1N3P/1P2P3/N1PP1nP1/R2QKBR1 w Q - 3 21 ; Best move: e5f6
The current state of the chess board is: Black rook at a8, black bishop at c8 and black king at d8. Black pawn at a7, black pawn at b7, black pawn at c7 and black pawn at f7. Black bishop at f6. Black queen at d5, white bishop at e5, black pawn at g5 and black pawn at h5. White pawn at a4, black knight at b4, white knight at d4 and white pawn at h4. White pawn at b3 and white pawn at e3. White knight at a2, white pawn at c2, white pawn at d2, black knight at f2 and white pawn at g2. White rook at a1, white queen at d1, white king at e1, white bishop at f1 and white rook at g1. White queenside is the only castle move available. Half move number is 3. Full move number is 21. White to move.