The following table should have four matching rows gradually changing from red at the left to black at the right (plus a checkerboard at both ends to show where the rows are):

                                   
                                   
                                   
                                   

The following table should have four matching rows gradually changing from white at the left to red at the right (plus a checkerboard at both ends to show where the rows are):

                                   
                                   
                                   
                                   

The following table should have four matching rows gradually changing from green at the left to black at the right (plus a checkerboard at both ends to show where the rows are):

                                   
                                   
                                   
                                   

The following table should have four matching rows gradually changing from white at the left to green at the right (plus a checkerboard at both ends to show where the rows are):

                                   
                                   
                                   
                                   

The following table should have four matching rows gradually changing from blue at the left to black at the right (plus a checkerboard at both ends to show where the rows are):

                                   
                                   
                                   
                                   

The following table should have four matching rows gradually changing from white at the left to blue at the right (plus a checkerboard at both ends to show where the rows are):

                                   
                                   
                                   
                                   

The following table should have four matching rows gradually changing from yellow at the left to black at the right (plus a checkerboard at both ends to show where the rows are):

                                   
                                   
                                   
                                   

The following table should have four matching rows gradually changing from white at the left to yellow at the right (plus a checkerboard at both ends to show where the rows are):

                                   
                                   
                                   
                                   

The following table should have four matching rows gradually changing from fuchsia at the left to black at the right (plus a checkerboard at both ends to show where the rows are):

                                   
                                   
                                   
                                   

The following table should have four matching rows gradually changing from white at the left to fuchsia at the right (plus a checkerboard at both ends to show where the rows are):

                                   
                                   
                                   
                                   

The following table should have four matching rows gradually changing from aqua at the left to black at the right (plus a checkerboard at both ends to show where the rows are):

                                   
                                   
                                   
                                   

The following table should have four matching rows gradually changing from white at the left to aqua at the right (plus a checkerboard at both ends to show where the rows are):

                                   
                                   
                                   
                                   

The following table should have four matching rows gradually changing from red at the left to green at the right (plus a checkerboard at both ends to show where the rows are):

                                   
                                   
                                   
                                   

The following table should have four matching rows gradually changing from green at the left to blue at the right (plus a checkerboard at both ends to show where the rows are):

                                   
                                   
                                   
                                   

The following table should have four matching rows gradually changing from blue at the left to red at the right (plus a checkerboard at both ends to show where the rows are):

                                   
                                   
                                   
                                   

The following table should have four matching rows gradually changing from fuchsia at the left to aqua at the right (plus a checkerboard at both ends to show where the rows are):

                                   
                                   
                                   
                                   

The following table should have four matching rows gradually changing from yellow at the left to fuchsia at the right (plus a checkerboard at both ends to show where the rows are):

                                   
                                   
                                   
                                   

The following table should have four matching rows gradually changing from aqua at the left to yellow at the right (plus a checkerboard at both ends to show where the rows are):