RGBRGB
GBRGBR
BRGBRG
RGBRGB
GBRGBR
BRGBRG

GBRGBR
BRGBRG
RGBRGB
GBRGBR
BRGBRG
RGBRGB

BRGBRG
RGBRGB
GBRGBR
BRGBRG
RGBRGB
GBRGBR

RGBRGB
GBRGBR
BRGBRG
RGBRGB
GBRGBR
BRGBRG

GBRGBR
BRGBRG
RGBRGB
GBRGBR
BRGBRG
RGBRGB

BRGBRG
RGBRGB
GBRGBR
BRGBRG
RGBRGB
GBRGBR