6nr/r2nb1pb/ppkp1p1p/1Np2N2/2P1p3/P3PQ2/1P1P1PPP/R1B1KBR1 w Q - 2 23
FEN state: 6nr/r2nb1pb/ppkp1p1p/1Np2N2/2P1p3/P3PQ2/1P1P1PPP/R1B1KBR1 w Q - 2 23 ; Best move: f3e4
The current state of the chess board is: Black knight at g8 and black rook at h8. Black rook at a7, black knight at d7, black bishop at e7, black pawn at g7 and black bishop at h7. Black pawn at a6, black pawn at b6, black king at c6, black pawn at d6, black pawn at f6 and black pawn at h6. White knight at b5, black pawn at c5 and white knight at f5. White pawn at c4 and black pawn at e4. White pawn at a3, white pawn at e3 and white queen at f3. White pawn at b2, white pawn at d2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, 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 2. Full move number is 23. White to move.