Gaucher’s last painting is a magisterial work, composed of three abutted and ascending monochrome panels of the primary colours, laconically entitled Yellow, Blue & Red. The three panels were probably executed in 1993 and were shown in 1995. When the work was exhibited again in 1999, it appeared to be a new painting because Gaucher repositioned the three panels and dated it 1999. But he eventually, in his usual mischievous way, confessed that he had indeed used the existing panels but had rethought the painting and hung the panels in a new configuration.