FKOQR, 1-3M-1-3M June 10, 2015Tessellation Nation1-3M-1-3M, 2-shape tessellation, FKOQRRaymond K. Houston Share this:EmailPrintFacebookMorePinterestTwitter Related posts: FKOQR, 1-1-2-2 FKOQR, 1-1-1M-1M FKOQR, 1-1-2M-2M FKOQR, 1-2-2-1 FKOQR, 1-4-1-4 FKOQR, 1-4-4-1 FKOQR, 1-2M-1-2M