There was a recent query on the forum about splitting an image across 4 separate prints  such that they were split equally across all four sheets and centered on each. He was then going to mount each separately and arrange on a wall.
So that is the challenge, you do the same and show the rest of us what you have done. Please use Print to File to make separate images, place in the queue and make a screen shot of the page editor or preview.
Rather than split into 4, you can split an image into as many as you like, if you prefer a triptych, do that.
See attached for a couple of samples.
Terry

Terry - Guilty as charged. When I posted that question the thought "QU Challenge" went through my tiny gray cells. Your suggestion worked fine as did your answer to my question about printing four versions of an image to a single page but each with different profile, rendering and BPC settings. I'll have to see what other "challenging" QU uses I can come up with.

I'd be glad to post some pictures if my house were as grand as yours as shown in your example. Must take a lot of time to keep your lawn mowed. 

I wouldn't put them up there, far too grand, they can manage with this place (attached below), providing they have a canal boat to get there. 
Terry

Sometimes, Terry can be a real Pane in the Glass.
Fred

Hi,
What exactly is causing the problem:
Making a print split into parts, or
printing the separate images to file or,
Assembling the images onto 1 page?
Terry

Hi Silviu,
I see you are not a native English speaker so I hope what I say is understandable - out of interest, where are you located? Qimage users are an international community  

Qimage Ultimate will automatically offer you the option of splitting a print into parts when the print size specified is larger than the page size.
However this can be done in a controlled manner from Print Properties - Custom and Poster Printing. See 1st attachment below. You can set any number of divisions.
Crop scissors need to be on to get equal sized prints.
When poster printing is set, red numbers appear in the top left corner of the preview and in the Page Editor, see 2nd screen shot below.
I used Print to File in the challenge as a means of showing the results of poster printing.
Print to File is set from the File menu which merely makes images rather than prints, mostly used to prepare images for printing at a print lab.
The results of the 2x2 poster print to file are shown in the 3rd screen shot below.
The 4th screen shows my print preview when QU was set to print to Printer, note the 4 pages made from the 1 image.

Terry