diff --git a/programs/15puzzle-korf0.pdf b/programs/15puzzle-korf0.pdf
index 0ff26b8..28dff77 100644
Binary files a/programs/15puzzle-korf0.pdf and b/programs/15puzzle-korf0.pdf differ
diff --git a/programs/15puzzle-korf1.pdf b/programs/15puzzle-korf1.pdf
index 7de3288..9003f58 100644
Binary files a/programs/15puzzle-korf1.pdf and b/programs/15puzzle-korf1.pdf differ
diff --git a/programs/achain-all.pdf b/programs/achain-all.pdf
index 58a5089..04039f0 100644
Binary files a/programs/achain-all.pdf and b/programs/achain-all.pdf differ
diff --git a/programs/achain-decode.pdf b/programs/achain-decode.pdf
index f72eae0..254c7c5 100644
Binary files a/programs/achain-decode.pdf and b/programs/achain-decode.pdf differ
diff --git a/programs/achain0.pdf b/programs/achain0.pdf
index 37721d2..7c2bebc 100644
Binary files a/programs/achain0.pdf and b/programs/achain0.pdf differ
diff --git a/programs/achain1.pdf b/programs/achain1.pdf
index f601a7a..8434297 100644
Binary files a/programs/achain1.pdf and b/programs/achain1.pdf differ
diff --git a/programs/achain2.pdf b/programs/achain2.pdf
index 1154f8d..0aaa318 100644
Binary files a/programs/achain2.pdf and b/programs/achain2.pdf differ
diff --git a/programs/achain3.pdf b/programs/achain3.pdf
index 0ee8016..e061648 100644
Binary files a/programs/achain3.pdf and b/programs/achain3.pdf differ
diff --git a/programs/achain4.pdf b/programs/achain4.pdf
index a21d536..9626047 100644
Binary files a/programs/achain4.pdf and b/programs/achain4.pdf differ
diff --git a/programs/advent.pdf b/programs/advent.pdf
index 05b484a..54d9ae4 100644
Binary files a/programs/advent.pdf and b/programs/advent.pdf differ
diff --git a/programs/antislide-nocorner.pdf b/programs/antislide-nocorner.pdf
index fe98234..c1be7a4 100644
Binary files a/programs/antislide-nocorner.pdf and b/programs/antislide-nocorner.pdf differ
diff --git a/programs/antislide.pdf b/programs/antislide.pdf
index 2598ed1..326dad2 100644
Binary files a/programs/antislide.pdf and b/programs/antislide.pdf differ
diff --git a/programs/antislide3.pdf b/programs/antislide3.pdf
index 84d1000..b12f6d5 100644
Binary files a/programs/antislide3.pdf and b/programs/antislide3.pdf differ
diff --git a/programs/back-20q-backmod9,15-indet.pdf b/programs/back-20q-backmod9,15-indet.pdf
index 69277e4..7622e31 100644
Binary files a/programs/back-20q-backmod9,15-indet.pdf and b/programs/back-20q-backmod9,15-indet.pdf differ
diff --git a/programs/back-20q-backmod9,15.pdf b/programs/back-20q-backmod9,15.pdf
index 1ce3621..495a73b 100644
Binary files a/programs/back-20q-backmod9,15.pdf and b/programs/back-20q-backmod9,15.pdf differ
diff --git a/programs/back-20q.pdf b/programs/back-20q.pdf
index 23cb27b..4f9b92b 100644
Binary files a/programs/back-20q.pdf and b/programs/back-20q.pdf differ
diff --git a/programs/back-commafree4.pdf b/programs/back-commafree4.pdf
index 1c1696d..e607a64 100644
Binary files a/programs/back-commafree4.pdf and b/programs/back-commafree4.pdf differ
diff --git a/programs/back-dissect.pdf b/programs/back-dissect.pdf
index 6719d33..5ab38fc 100644
Binary files a/programs/back-dissect.pdf and b/programs/back-dissect.pdf differ
diff --git a/programs/back-graceful-rooted-randomrestarts.pdf b/programs/back-graceful-rooted-randomrestarts.pdf
new file mode 100644
index 0000000..9bcb202
Binary files /dev/null and b/programs/back-graceful-rooted-randomrestarts.pdf differ
diff --git a/programs/back-graceful.pdf b/programs/back-graceful.pdf
new file mode 100644
index 0000000..57a1821
Binary files /dev/null and b/programs/back-graceful.pdf differ
diff --git a/programs/back-kepler-towers.pdf b/programs/back-kepler-towers.pdf
new file mode 100644
index 0000000..eb0299b
Binary files /dev/null and b/programs/back-kepler-towers.pdf differ
diff --git a/programs/back-mxn-words-mxn.pdf b/programs/back-mxn-words-mxn.pdf
index f220ce6..f975e6c 100644
Binary files a/programs/back-mxn-words-mxn.pdf and b/programs/back-mxn-words-mxn.pdf differ
diff --git a/programs/back-mxn-words-new.pdf b/programs/back-mxn-words-new.pdf
index 23950eb..86fcf09 100644
Binary files a/programs/back-mxn-words-new.pdf and b/programs/back-mxn-words-new.pdf differ
diff --git a/programs/back-pdi.pdf b/programs/back-pdi.pdf
index 5242949..0bdbc14 100644
Binary files a/programs/back-pdi.pdf and b/programs/back-pdi.pdf differ
diff --git a/programs/back-pi-day.pdf b/programs/back-pi-day.pdf
index 906f039..cf43ffe 100644
Binary files a/programs/back-pi-day.pdf and b/programs/back-pi-day.pdf differ
diff --git a/programs/back-skeleton.pdf b/programs/back-skeleton.pdf
index f7d5540..7ad0656 100644
Binary files a/programs/back-skeleton.pdf and b/programs/back-skeleton.pdf differ
diff --git a/programs/baxter-to-floorplan.pdf b/programs/baxter-to-floorplan.pdf
index 148df97..ac965ee 100644
Binary files a/programs/baxter-to-floorplan.pdf and b/programs/baxter-to-floorplan.pdf differ
diff --git a/programs/bdd12.pdf b/programs/bdd12.pdf
index ed67d11..1121bef 100644
Binary files a/programs/bdd12.pdf and b/programs/bdd12.pdf differ
diff --git a/programs/bdd14.pdf b/programs/bdd14.pdf
index 99316ab..733e456 100644
Binary files a/programs/bdd14.pdf and b/programs/bdd14.pdf differ
diff --git a/programs/bdd15.pdf b/programs/bdd15.pdf
index c5a675c..2b31d2c 100644
Binary files a/programs/bdd15.pdf and b/programs/bdd15.pdf differ
diff --git a/programs/bddl-rgrowth.pdf b/programs/bddl-rgrowth.pdf
index 9e7ce0d..380bcfd 100644
Binary files a/programs/bddl-rgrowth.pdf and b/programs/bddl-rgrowth.pdf differ
diff --git a/programs/co-debruijn.pdf b/programs/co-debruijn.pdf
index a3d6575..2519735 100644
Binary files a/programs/co-debruijn.pdf and b/programs/co-debruijn.pdf differ
diff --git a/programs/commafree-eastman-new.pdf b/programs/commafree-eastman-new.pdf
index 7a78192..5303c55 100644
Binary files a/programs/commafree-eastman-new.pdf and b/programs/commafree-eastman-new.pdf differ
diff --git a/programs/commafree-eastman.pdf b/programs/commafree-eastman.pdf
index 862fb1b..b041c6c 100644
Binary files a/programs/commafree-eastman.pdf and b/programs/commafree-eastman.pdf differ
diff --git a/programs/cvm-estimates.pdf b/programs/cvm-estimates.pdf
index 569641b..9350695 100644
Binary files a/programs/cvm-estimates.pdf and b/programs/cvm-estimates.pdf differ
diff --git a/programs/dance-random.pdf b/programs/dance-random.pdf
index 3f9664a..62f809a 100644
Binary files a/programs/dance-random.pdf and b/programs/dance-random.pdf differ
diff --git a/programs/dance.pdf b/programs/dance.pdf
index 0e90914..41631cc 100644
Binary files a/programs/dance.pdf and b/programs/dance.pdf differ
diff --git a/programs/decagon-color.pdf b/programs/decagon-color.pdf
index e55368b..9f90745 100644
Binary files a/programs/decagon-color.pdf and b/programs/decagon-color.pdf differ
diff --git a/programs/decagon-colorstar.pdf b/programs/decagon-colorstar.pdf
index f6247df..7639655 100644
Binary files a/programs/decagon-colorstar.pdf and b/programs/decagon-colorstar.pdf differ
diff --git a/programs/decagon-star.pdf b/programs/decagon-star.pdf
index d0f3289..901c509 100644
Binary files a/programs/decagon-star.pdf and b/programs/decagon-star.pdf differ
diff --git a/programs/decagon.pdf b/programs/decagon.pdf
index 65496ed..12a2b9e 100644
Binary files a/programs/decagon.pdf and b/programs/decagon.pdf differ
diff --git a/programs/dimacs-to-sat.pdf b/programs/dimacs-to-sat.pdf
index e75de1d..daf6594 100644
Binary files a/programs/dimacs-to-sat.pdf and b/programs/dimacs-to-sat.pdf differ
diff --git a/programs/dlx-pre.pdf b/programs/dlx-pre.pdf
index 1d38621..0e9976b 100644
Binary files a/programs/dlx-pre.pdf and b/programs/dlx-pre.pdf differ
diff --git a/programs/domination.pdf b/programs/domination.pdf
index 40f12a9..c234cd3 100644
Binary files a/programs/domination.pdf and b/programs/domination.pdf differ
diff --git a/programs/dot-diff-eps.pdf b/programs/dot-diff-eps.pdf
index 94cffbe..9417e22 100644
Binary files a/programs/dot-diff-eps.pdf and b/programs/dot-diff-eps.pdf differ
diff --git a/programs/dot-diff.pdf b/programs/dot-diff.pdf
index 1b26c50..2af99f8 100644
Binary files a/programs/dot-diff.pdf and b/programs/dot-diff.pdf differ
diff --git a/programs/dragon-calc.pdf b/programs/dragon-calc.pdf
index 2a29201..3dfa5c6 100644
Binary files a/programs/dragon-calc.pdf and b/programs/dragon-calc.pdf differ
diff --git a/programs/embed.pdf b/programs/embed.pdf
index 8e6eba6..d9402f8 100644
Binary files a/programs/embed.pdf and b/programs/embed.pdf differ
diff --git a/programs/erection.pdf b/programs/erection.pdf
index 2fe34f9..498fc67 100644
Binary files a/programs/erection.pdf and b/programs/erection.pdf differ
diff --git a/programs/euler-trail.pdf b/programs/euler-trail.pdf
index a2f7e24..1674947 100644
Binary files a/programs/euler-trail.pdf and b/programs/euler-trail.pdf differ
diff --git a/programs/fchains4x-dontcares.pdf b/programs/fchains4x-dontcares.pdf
index d75162d..6ef328d 100644
Binary files a/programs/fchains4x-dontcares.pdf and b/programs/fchains4x-dontcares.pdf differ
diff --git a/programs/fchains4x.pdf b/programs/fchains4x.pdf
index 4bfa0f6..3b9e511 100644
Binary files a/programs/fchains4x.pdf and b/programs/fchains4x.pdf differ
diff --git a/programs/fillomino-dlx.pdf b/programs/fillomino-dlx.pdf
index b597328..9f148bc 100644
Binary files a/programs/fillomino-dlx.pdf and b/programs/fillomino-dlx.pdf differ
diff --git a/programs/floorplan-to-twintree-ttform.pdf b/programs/floorplan-to-twintree-ttform.pdf
index 13653bb..f101b32 100644
Binary files a/programs/floorplan-to-twintree-ttform.pdf and b/programs/floorplan-to-twintree-ttform.pdf differ
diff --git a/programs/floorplan-to-twintree.pdf b/programs/floorplan-to-twintree.pdf
index e43e7ee..b9db0df 100644
Binary files a/programs/floorplan-to-twintree.pdf and b/programs/floorplan-to-twintree.pdf differ
diff --git a/programs/fog2mf.pdf b/programs/fog2mf.pdf
index b8d3c24..d90e127 100644
Binary files a/programs/fog2mf.pdf and b/programs/fog2mf.pdf differ
diff --git a/programs/francon.pdf b/programs/francon.pdf
index f9f6141..64eaeae 100644
Binary files a/programs/francon.pdf and b/programs/francon.pdf differ
diff --git a/programs/garsia-wachs.pdf b/programs/garsia-wachs.pdf
index 9fb583b..2f6e2dd 100644
Binary files a/programs/garsia-wachs.pdf and b/programs/garsia-wachs.pdf differ
diff --git a/programs/gdance-cutoff.pdf b/programs/gdance-cutoff.pdf
index 8332d44..2da6435 100644
Binary files a/programs/gdance-cutoff.pdf and b/programs/gdance-cutoff.pdf differ
diff --git a/programs/gdance.pdf b/programs/gdance.pdf
index ce2ccd2..4127940 100644
Binary files a/programs/gdance.pdf and b/programs/gdance.pdf differ
diff --git a/programs/graceful-count-small.pdf b/programs/graceful-count-small.pdf
index b27058c..9e39ea9 100644
Binary files a/programs/graceful-count-small.pdf and b/programs/graceful-count-small.pdf differ
diff --git a/programs/graceful-count.pdf b/programs/graceful-count.pdf
index 15f8ef7..38f3609 100644
Binary files a/programs/graceful-count.pdf and b/programs/graceful-count.pdf differ
diff --git a/programs/graceful-dlx-domains.pdf b/programs/graceful-dlx-domains.pdf
index 52b75e6..e7fb9f2 100644
Binary files a/programs/graceful-dlx-domains.pdf and b/programs/graceful-dlx-domains.pdf differ
diff --git a/programs/graceful-dlx-presets.pdf b/programs/graceful-dlx-presets.pdf
index 219e835..d796b00 100644
Binary files a/programs/graceful-dlx-presets.pdf and b/programs/graceful-dlx-presets.pdf differ
diff --git a/programs/graceful-dlx.pdf b/programs/graceful-dlx.pdf
index af40331..fbbdec2 100644
Binary files a/programs/graceful-dlx.pdf and b/programs/graceful-dlx.pdf differ
diff --git a/programs/graph-hash.pdf b/programs/graph-hash.pdf
index f6bc5f3..cf6b22b 100644
Binary files a/programs/graph-hash.pdf and b/programs/graph-hash.pdf differ
diff --git a/programs/graph-sig-v0.pdf b/programs/graph-sig-v0.pdf
index b6556ae..f2d4fc0 100644
Binary files a/programs/graph-sig-v0.pdf and b/programs/graph-sig-v0.pdf differ
diff --git a/programs/grayspan.pdf b/programs/grayspan.pdf
index 88ef4a9..8749d5b 100644
Binary files a/programs/grayspan.pdf and b/programs/grayspan.pdf differ
diff --git a/programs/grayspspan.pdf b/programs/grayspspan.pdf
index ffbdd64..3733bef 100644
Binary files a/programs/grayspspan.pdf and b/programs/grayspspan.pdf differ
diff --git a/programs/halftone.pdf b/programs/halftone.pdf
index 20c53eb..92db063 100644
Binary files a/programs/halftone.pdf and b/programs/halftone.pdf differ
diff --git a/programs/ham.pdf b/programs/ham.pdf
index 10c81b0..4ff5d89 100644
Binary files a/programs/ham.pdf and b/programs/ham.pdf differ
diff --git a/programs/hamdance.pdf b/programs/hamdance.pdf
index 17bf638..a3a8258 100644
Binary files a/programs/hamdance.pdf and b/programs/hamdance.pdf differ
diff --git a/programs/histoscape-count.pdf b/programs/histoscape-count.pdf
index 9d91952..a26d4c8 100644
Binary files a/programs/histoscape-count.pdf and b/programs/histoscape-count.pdf differ
diff --git a/programs/histoscape-unrank.pdf b/programs/histoscape-unrank.pdf
index f38a0b7..c6bd829 100644
Binary files a/programs/histoscape-unrank.pdf and b/programs/histoscape-unrank.pdf differ
diff --git a/programs/hopcroft-karp.pdf b/programs/hopcroft-karp.pdf
index 458a28d..af95527 100644
Binary files a/programs/hopcroft-karp.pdf and b/programs/hopcroft-karp.pdf differ
diff --git a/programs/horn-count.pdf b/programs/horn-count.pdf
index 15dd8bf..ab2605e 100644
Binary files a/programs/horn-count.pdf and b/programs/horn-count.pdf differ
diff --git a/programs/hull.pdf b/programs/hull.pdf
index bcc86b5..458a403 100644
Binary files a/programs/hull.pdf and b/programs/hull.pdf differ
diff --git a/programs/hulld-ngon.pdf b/programs/hulld-ngon.pdf
index ec0cfc6..3928458 100644
Binary files a/programs/hulld-ngon.pdf and b/programs/hulld-ngon.pdf differ
diff --git a/programs/hulld-square.pdf b/programs/hulld-square.pdf
index 7690d88..bd42c67 100644
Binary files a/programs/hulld-square.pdf and b/programs/hulld-square.pdf differ
diff --git a/programs/hulld-unif.pdf b/programs/hulld-unif.pdf
index 5034301..3bf3fd1 100644
Binary files a/programs/hulld-unif.pdf and b/programs/hulld-unif.pdf differ
diff --git a/programs/hulls.pdf b/programs/hulls.pdf
index 70f047b..864edd8 100644
Binary files a/programs/hulls.pdf and b/programs/hulls.pdf differ
diff --git a/programs/hullt.pdf b/programs/hullt.pdf
index 78f560c..9614558 100644
Binary files a/programs/hullt.pdf and b/programs/hullt.pdf differ
diff --git a/programs/hulltr.pdf b/programs/hulltr.pdf
index 842ce50..bc5011f 100644
Binary files a/programs/hulltr.pdf and b/programs/hulltr.pdf differ
diff --git a/programs/hwb-fast.pdf b/programs/hwb-fast.pdf
index 8037f53..b0f68dd 100644
Binary files a/programs/hwb-fast.pdf and b/programs/hwb-fast.pdf differ
diff --git a/programs/hwtime.pdf b/programs/hwtime.pdf
index 3d032ee..f703c47 100644
Binary files a/programs/hwtime.pdf and b/programs/hwtime.pdf differ
diff --git a/programs/hyperbolic.pdf b/programs/hyperbolic.pdf
index 98b4b92..94c3525 100644
Binary files a/programs/hyperbolic.pdf and b/programs/hyperbolic.pdf differ
diff --git a/programs/ian-dlx.pdf b/programs/ian-dlx.pdf
index aa82dae..59613f4 100644
Binary files a/programs/ian-dlx.pdf and b/programs/ian-dlx.pdf differ
diff --git a/programs/infty-queens.pdf b/programs/infty-queens.pdf
index 787c353..04855e4 100644
Binary files a/programs/infty-queens.pdf and b/programs/infty-queens.pdf differ
diff --git a/programs/koda-ruskey.pdf b/programs/koda-ruskey.pdf
index 824da65..f8c2c56 100644
Binary files a/programs/koda-ruskey.pdf and b/programs/koda-ruskey.pdf differ
diff --git a/programs/lagfib.pdf b/programs/lagfib.pdf
index 1635263..982b50b 100644
Binary files a/programs/lagfib.pdf and b/programs/lagfib.pdf differ
diff --git a/programs/li-ruskey.pdf b/programs/li-ruskey.pdf
index f6702fb..d52e087 100644
Binary files a/programs/li-ruskey.pdf and b/programs/li-ruskey.pdf differ
diff --git a/programs/linked-trees.pdf b/programs/linked-trees.pdf
index 702b642..b24a098 100644
Binary files a/programs/linked-trees.pdf and b/programs/linked-trees.pdf differ
diff --git a/programs/lp.pdf b/programs/lp.pdf
index 49a8b95..d021ef5 100644
Binary files a/programs/lp.pdf and b/programs/lp.pdf differ
diff --git a/programs/macmahon-triangles-dlx.pdf b/programs/macmahon-triangles-dlx.pdf
index 84e63a0..1c3e555 100644
Binary files a/programs/macmahon-triangles-dlx.pdf and b/programs/macmahon-triangles-dlx.pdf differ
diff --git a/programs/macmahon-triangles-sym-tile.pdf b/programs/macmahon-triangles-sym-tile.pdf
index 75a914d..55cd819 100644
Binary files a/programs/macmahon-triangles-sym-tile.pdf and b/programs/macmahon-triangles-sym-tile.pdf differ
diff --git a/programs/masyu-dlx.pdf b/programs/masyu-dlx.pdf
index 9c3dc59..403fadb 100644
Binary files a/programs/masyu-dlx.pdf and b/programs/masyu-dlx.pdf differ
diff --git a/programs/matula-big-planted.pdf b/programs/matula-big-planted.pdf
index d889f0e..b5317b7 100644
Binary files a/programs/matula-big-planted.pdf and b/programs/matula-big-planted.pdf differ
diff --git a/programs/matula-big.pdf b/programs/matula-big.pdf
index e74fcfe..94c1c21 100644
Binary files a/programs/matula-big.pdf and b/programs/matula-big.pdf differ
diff --git a/programs/matula-exhaustive.pdf b/programs/matula-exhaustive.pdf
index ff3d99c..89700fb 100644
Binary files a/programs/matula-exhaustive.pdf and b/programs/matula-exhaustive.pdf differ
diff --git a/programs/matula.pdf b/programs/matula.pdf
index 63a4666..d6cf554 100644
Binary files a/programs/matula.pdf and b/programs/matula.pdf differ
diff --git a/programs/maxcliques.pdf b/programs/maxcliques.pdf
index 4c09ce4..5b0a78c 100644
Binary files a/programs/maxcliques.pdf and b/programs/maxcliques.pdf differ
diff --git a/programs/motley-dlx.pdf b/programs/motley-dlx.pdf
index 46f4e04..c0bae15 100644
Binary files a/programs/motley-dlx.pdf and b/programs/motley-dlx.pdf differ
diff --git a/programs/obdd.pdf b/programs/obdd.pdf
index b0de0cf..1cd7f93 100644
Binary files a/programs/obdd.pdf and b/programs/obdd.pdf differ
diff --git a/programs/offline-tree-insertion.pdf b/programs/offline-tree-insertion.pdf
index b3d0b78..d39e56c 100644
Binary files a/programs/offline-tree-insertion.pdf and b/programs/offline-tree-insertion.pdf differ
diff --git a/programs/othello.pdf b/programs/othello.pdf
new file mode 100644
index 0000000..9a043f0
Binary files /dev/null and b/programs/othello.pdf differ
diff --git a/programs/partial-latin-gad-swap.pdf b/programs/partial-latin-gad-swap.pdf
index 179689b..ed27fe6 100644
Binary files a/programs/partial-latin-gad-swap.pdf and b/programs/partial-latin-gad-swap.pdf differ
diff --git a/programs/partial-latin-gad.pdf b/programs/partial-latin-gad.pdf
index be8e3c4..622ec5f 100644
Binary files a/programs/partial-latin-gad.pdf and b/programs/partial-latin-gad.pdf differ
diff --git a/programs/perfect-partition-square.pdf b/programs/perfect-partition-square.pdf
new file mode 100644
index 0000000..8209cb6
Binary files /dev/null and b/programs/perfect-partition-square.pdf differ
diff --git a/programs/pi-day-dlx.pdf b/programs/pi-day-dlx.pdf
index c5dff01..22ef211 100644
Binary files a/programs/pi-day-dlx.pdf and b/programs/pi-day-dlx.pdf differ
diff --git a/programs/polycube-dlx.pdf b/programs/polycube-dlx.pdf
index 166645c..6a26583 100644
Binary files a/programs/polycube-dlx.pdf and b/programs/polycube-dlx.pdf differ
diff --git a/programs/polyenum.pdf b/programs/polyenum.pdf
index 0ed6273..57ee653 100644
Binary files a/programs/polyenum.pdf and b/programs/polyenum.pdf differ
diff --git a/programs/polyiamond-dlx.pdf b/programs/polyiamond-dlx.pdf
index 29f0b4b..98bebb7 100644
Binary files a/programs/polyiamond-dlx.pdf and b/programs/polyiamond-dlx.pdf differ
diff --git a/programs/polyiamonds.pdf b/programs/polyiamonds.pdf
index 0cea172..c3ac5c3 100644
Binary files a/programs/polyiamonds.pdf and b/programs/polyiamonds.pdf differ
diff --git a/programs/polynum-restart.pdf b/programs/polynum-restart.pdf
index 11d11ef..d9a0952 100644
Binary files a/programs/polynum-restart.pdf and b/programs/polynum-restart.pdf differ
diff --git a/programs/polynum.pdf b/programs/polynum.pdf
index e572976..1a000b3 100644
Binary files a/programs/polynum.pdf and b/programs/polynum.pdf differ
diff --git a/programs/polyomino-dlx.pdf b/programs/polyomino-dlx.pdf
index 8295c9b..e092165 100644
Binary files a/programs/polyomino-dlx.pdf and b/programs/polyomino-dlx.pdf differ
diff --git a/programs/polyominoes.pdf b/programs/polyominoes.pdf
index 3667207..ea8c6ff 100644
Binary files a/programs/polyominoes.pdf and b/programs/polyominoes.pdf differ
diff --git a/programs/polyslave-restart.pdf b/programs/polyslave-restart.pdf
index f6f2198..3746213 100644
Binary files a/programs/polyslave-restart.pdf and b/programs/polyslave-restart.pdf differ
diff --git a/programs/polyslave.pdf b/programs/polyslave.pdf
index a8929b7..1331552 100644
Binary files a/programs/polyslave.pdf and b/programs/polyslave.pdf differ
diff --git a/programs/polysticks.pdf b/programs/polysticks.pdf
index 41ac7ba..9f1082e 100644
Binary files a/programs/polysticks.pdf and b/programs/polysticks.pdf differ
diff --git a/programs/posets.pdf b/programs/posets.pdf
index eb40c04..a0a556b 100644
Binary files a/programs/posets.pdf and b/programs/posets.pdf differ
diff --git a/programs/posets0.pdf b/programs/posets0.pdf
index f8db7f0..f4e2708 100644
Binary files a/programs/posets0.pdf and b/programs/posets0.pdf differ
diff --git a/programs/prime-sieve-boot.pdf b/programs/prime-sieve-boot.pdf
index 8c358c8..e2a7617 100644
Binary files a/programs/prime-sieve-boot.pdf and b/programs/prime-sieve-boot.pdf differ
diff --git a/programs/prime-sieve-sparse.pdf b/programs/prime-sieve-sparse.pdf
index bda718c..0b1c247 100644
Binary files a/programs/prime-sieve-sparse.pdf and b/programs/prime-sieve-sparse.pdf differ
diff --git a/programs/prime-sieve.pdf b/programs/prime-sieve.pdf
index 84bae51..1fa7025 100644
Binary files a/programs/prime-sieve.pdf and b/programs/prime-sieve.pdf differ
diff --git a/programs/queendom-dlx.pdf b/programs/queendom-dlx.pdf
index 7e34812..1f2e105 100644
Binary files a/programs/queendom-dlx.pdf and b/programs/queendom-dlx.pdf differ
diff --git a/programs/queenon-partition.pdf b/programs/queenon-partition.pdf
index d8a5fd0..009c95f 100644
Binary files a/programs/queenon-partition.pdf and b/programs/queenon-partition.pdf differ
diff --git a/programs/queens-dlx.pdf b/programs/queens-dlx.pdf
index ce6aaa6..2b46114 100644
Binary files a/programs/queens-dlx.pdf and b/programs/queens-dlx.pdf differ
diff --git a/programs/queens.pdf b/programs/queens.pdf
index 7fc4911..2681b3f 100644
Binary files a/programs/queens.pdf and b/programs/queens.pdf differ
diff --git a/programs/ran-prim.pdf b/programs/ran-prim.pdf
index 9027bed..7e77d99 100644
Binary files a/programs/ran-prim.pdf and b/programs/ran-prim.pdf differ
diff --git a/programs/random-dfs-a.pdf b/programs/random-dfs-a.pdf
index e1f9908..7a48362 100644
Binary files a/programs/random-dfs-a.pdf and b/programs/random-dfs-a.pdf differ
diff --git a/programs/random-dfs-b.pdf b/programs/random-dfs-b.pdf
index 2f7dea8..415ab42 100644
Binary files a/programs/random-dfs-b.pdf and b/programs/random-dfs-b.pdf differ
diff --git a/programs/random-ternary-quads.pdf b/programs/random-ternary-quads.pdf
index 682fb58..c046fc8 100644
Binary files a/programs/random-ternary-quads.pdf and b/programs/random-ternary-quads.pdf differ
diff --git a/programs/random-ternary.pdf b/programs/random-ternary.pdf
index afcc6ab..741348b 100644
Binary files a/programs/random-ternary.pdf and b/programs/random-ternary.pdf differ
diff --git a/programs/rank-parade1.pdf b/programs/rank-parade1.pdf
new file mode 100644
index 0000000..d8899b4
Binary files /dev/null and b/programs/rank-parade1.pdf differ
diff --git a/programs/rank-parade2.pdf b/programs/rank-parade2.pdf
new file mode 100644
index 0000000..02ea5b9
Binary files /dev/null and b/programs/rank-parade2.pdf differ
diff --git a/programs/redrect-dlx.pdf b/programs/redrect-dlx.pdf
index 9b4767f..d89db2e 100644
Binary files a/programs/redrect-dlx.pdf and b/programs/redrect-dlx.pdf differ
diff --git a/programs/rost.pdf b/programs/rost.pdf
index 2925975..c935054 100644
Binary files a/programs/rost.pdf and b/programs/rost.pdf differ
diff --git a/programs/sand.pdf b/programs/sand.pdf
index 05727ed..6e7a09d 100644
Binary files a/programs/sand.pdf and b/programs/sand.pdf differ
diff --git a/programs/sat-commafree.pdf b/programs/sat-commafree.pdf
index e2b6f4d..d92bc3f 100644
Binary files a/programs/sat-commafree.pdf and b/programs/sat-commafree.pdf differ
diff --git a/programs/sat-life-filter.pdf b/programs/sat-life-filter.pdf
index 64efaa3..ed4d96a 100644
Binary files a/programs/sat-life-filter.pdf and b/programs/sat-life-filter.pdf differ
diff --git a/programs/sat-life-grid-cycle.pdf b/programs/sat-life-grid-cycle.pdf
index e250ea2..b2d01e8 100644
Binary files a/programs/sat-life-grid-cycle.pdf and b/programs/sat-life-grid-cycle.pdf differ
diff --git a/programs/sat-life-grid-eater.pdf b/programs/sat-life-grid-eater.pdf
index a7473c5..4b21656 100644
Binary files a/programs/sat-life-grid-eater.pdf and b/programs/sat-life-grid-eater.pdf differ
diff --git a/programs/sat-life-grid-spaceships-sym.pdf b/programs/sat-life-grid-spaceships-sym.pdf
index 6bb00e5..a3576e9 100644
Binary files a/programs/sat-life-grid-spaceships-sym.pdf and b/programs/sat-life-grid-spaceships-sym.pdf differ
diff --git a/programs/sat-life-grid-spaceships.pdf b/programs/sat-life-grid-spaceships.pdf
index bcfb59d..f924072 100644
Binary files a/programs/sat-life-grid-spaceships.pdf and b/programs/sat-life-grid-spaceships.pdf differ
diff --git a/programs/sat-life-grid.pdf b/programs/sat-life-grid.pdf
index 90f2cdb..d24eb4f 100644
Binary files a/programs/sat-life-grid.pdf and b/programs/sat-life-grid.pdf differ
diff --git a/programs/sat-life-grid90-cycle.pdf b/programs/sat-life-grid90-cycle.pdf
index f203640..e51f797 100644
Binary files a/programs/sat-life-grid90-cycle.pdf and b/programs/sat-life-grid90-cycle.pdf differ
diff --git a/programs/sat-life-grid90.pdf b/programs/sat-life-grid90.pdf
index 20a4cfd..25d27d0 100644
Binary files a/programs/sat-life-grid90.pdf and b/programs/sat-life-grid90.pdf differ
diff --git a/programs/sat-life-gridquad-cycle.pdf b/programs/sat-life-gridquad-cycle.pdf
index 5ce921e..8d5bd2d 100644
Binary files a/programs/sat-life-gridquad-cycle.pdf and b/programs/sat-life-gridquad-cycle.pdf differ
diff --git a/programs/sat-life-gridquad.pdf b/programs/sat-life-gridquad.pdf
index b27138a..0d1a4d9 100644
Binary files a/programs/sat-life-gridquad.pdf and b/programs/sat-life-gridquad.pdf differ
diff --git a/programs/sat-life-torus-cycle.pdf b/programs/sat-life-torus-cycle.pdf
index 5828249..3bc3926 100644
Binary files a/programs/sat-life-torus-cycle.pdf and b/programs/sat-life-torus-cycle.pdf differ
diff --git a/programs/sat-life-torus.pdf b/programs/sat-life-torus.pdf
index ae002a0..d62e81b 100644
Binary files a/programs/sat-life-torus.pdf and b/programs/sat-life-torus.pdf differ
diff --git a/programs/sat-life-upper.pdf b/programs/sat-life-upper.pdf
index 4612a2e..5c941a0 100644
Binary files a/programs/sat-life-upper.pdf and b/programs/sat-life-upper.pdf differ
diff --git a/programs/sat-life.pdf b/programs/sat-life.pdf
index 2ea56fc..8c5e294 100644
Binary files a/programs/sat-life.pdf and b/programs/sat-life.pdf differ
diff --git a/programs/sat-nfa.pdf b/programs/sat-nfa.pdf
index 9db6170..3bfaca2 100644
Binary files a/programs/sat-nfa.pdf and b/programs/sat-nfa.pdf differ
diff --git a/programs/sat-to-dimacs.pdf b/programs/sat-to-dimacs.pdf
index 8b7a1f6..fcafb78 100644
Binary files a/programs/sat-to-dimacs.pdf and b/programs/sat-to-dimacs.pdf differ
diff --git a/programs/sat0.pdf b/programs/sat0.pdf
index 0160e8c..ad7d12e 100644
Binary files a/programs/sat0.pdf and b/programs/sat0.pdf differ
diff --git a/programs/sat0w.pdf b/programs/sat0w.pdf
index e07afb3..724a325 100644
Binary files a/programs/sat0w.pdf and b/programs/sat0w.pdf differ
diff --git a/programs/sat10.pdf b/programs/sat10.pdf
index 409cf1e..2a22888 100644
Binary files a/programs/sat10.pdf and b/programs/sat10.pdf differ
diff --git a/programs/sat11.pdf b/programs/sat11.pdf
index 3bc90c8..f942d37 100644
Binary files a/programs/sat11.pdf and b/programs/sat11.pdf differ
diff --git a/programs/sat11k.pdf b/programs/sat11k.pdf
index d3611b9..f067ef2 100644
Binary files a/programs/sat11k.pdf and b/programs/sat11k.pdf differ
diff --git a/programs/sat12-erp.pdf b/programs/sat12-erp.pdf
index 16c9b14..fbbd239 100644
Binary files a/programs/sat12-erp.pdf and b/programs/sat12-erp.pdf differ
diff --git a/programs/sat12.pdf b/programs/sat12.pdf
index 0ca1fd4..3138d31 100644
Binary files a/programs/sat12.pdf and b/programs/sat12.pdf differ
diff --git a/programs/sat8.pdf b/programs/sat8.pdf
index 03e8e1b..b5502e3 100644
Binary files a/programs/sat8.pdf and b/programs/sat8.pdf differ
diff --git a/programs/sat9.pdf b/programs/sat9.pdf
index afaabac..02ad91f 100644
Binary files a/programs/sat9.pdf and b/programs/sat9.pdf differ
diff --git a/programs/setset-all.pdf b/programs/setset-all.pdf
index e38ebca..af214d9 100644
Binary files a/programs/setset-all.pdf and b/programs/setset-all.pdf differ
diff --git a/programs/setset-random.pdf b/programs/setset-random.pdf
index ab4dc0c..40cd145 100644
Binary files a/programs/setset-random.pdf and b/programs/setset-random.pdf differ
diff --git a/programs/setset.pdf b/programs/setset.pdf
index 1ea9009..55b3798 100644
Binary files a/programs/setset.pdf and b/programs/setset.pdf differ
diff --git a/programs/sham.pdf b/programs/sham.pdf
index 809358f..d18ae06 100644
Binary files a/programs/sham.pdf and b/programs/sham.pdf differ
diff --git a/programs/simpath-cycles.pdf b/programs/simpath-cycles.pdf
index 58df291..1e7b3eb 100644
Binary files a/programs/simpath-cycles.pdf and b/programs/simpath-cycles.pdf differ
diff --git a/programs/simpath-directed-cycles.pdf b/programs/simpath-directed-cycles.pdf
index 1c58f08..241e425 100644
Binary files a/programs/simpath-directed-cycles.pdf and b/programs/simpath-directed-cycles.pdf differ
diff --git a/programs/simpath-ham-any.pdf b/programs/simpath-ham-any.pdf
index 994a84f..7f8cedb 100644
Binary files a/programs/simpath-ham-any.pdf and b/programs/simpath-ham-any.pdf differ
diff --git a/programs/simpath-ham.pdf b/programs/simpath-ham.pdf
index bc44161..64f45dc 100644
Binary files a/programs/simpath-ham.pdf and b/programs/simpath-ham.pdf differ
diff --git a/programs/simpath-reduce.pdf b/programs/simpath-reduce.pdf
index c11e9aa..b65774e 100644
Binary files a/programs/simpath-reduce.pdf and b/programs/simpath-reduce.pdf differ
diff --git a/programs/simpath.pdf b/programs/simpath.pdf
index c3f0f4f..0459215 100644
Binary files a/programs/simpath.pdf and b/programs/simpath.pdf differ
diff --git a/programs/skew-ternary-calc-raw.pdf b/programs/skew-ternary-calc-raw.pdf
index c9e0710..be60d0f 100644
Binary files a/programs/skew-ternary-calc-raw.pdf and b/programs/skew-ternary-calc-raw.pdf differ
diff --git a/programs/skew-ternary-calc.pdf b/programs/skew-ternary-calc.pdf
index 6fe41be..26ee5bf 100644
Binary files a/programs/skew-ternary-calc.pdf and b/programs/skew-ternary-calc.pdf differ
diff --git a/programs/sliding.pdf b/programs/sliding.pdf
index 7f75b35..84bbbbb 100644
Binary files a/programs/sliding.pdf and b/programs/sliding.pdf differ
diff --git a/programs/slitherlink-dlx.pdf b/programs/slitherlink-dlx.pdf
index 4d7f227..a992740 100644
Binary files a/programs/slitherlink-dlx.pdf and b/programs/slitherlink-dlx.pdf differ
diff --git a/programs/spgraph.pdf b/programs/spgraph.pdf
index 04939cc..b35f112 100644
Binary files a/programs/spgraph.pdf and b/programs/spgraph.pdf differ
diff --git a/programs/spiders.pdf b/programs/spiders.pdf
index 1c99de5..b2fea9b 100644
Binary files a/programs/spiders.pdf and b/programs/spiders.pdf differ
diff --git a/programs/spspan.pdf b/programs/spspan.pdf
index 5936e22..59be77a 100644
Binary files a/programs/spspan.pdf and b/programs/spspan.pdf differ
diff --git a/programs/squaregraph-rand.pdf b/programs/squaregraph-rand.pdf
index a6c52c6..01157f1 100644
Binary files a/programs/squaregraph-rand.pdf and b/programs/squaregraph-rand.pdf differ
diff --git a/programs/squaregraph.pdf b/programs/squaregraph.pdf
index 0df9c00..3b3e1e1 100644
Binary files a/programs/squaregraph.pdf and b/programs/squaregraph.pdf differ
diff --git a/programs/squarepal.pdf b/programs/squarepal.pdf
index 0741e6f..84fb537 100644
Binary files a/programs/squarepal.pdf and b/programs/squarepal.pdf differ
diff --git a/programs/ssmcc-frb.pdf b/programs/ssmcc-frb.pdf
new file mode 100644
index 0000000..4eee20d
Binary files /dev/null and b/programs/ssmcc-frb.pdf differ
diff --git a/programs/ssmcc-wtd.pdf b/programs/ssmcc-wtd.pdf
new file mode 100644
index 0000000..09aa3b9
Binary files /dev/null and b/programs/ssmcc-wtd.pdf differ
diff --git a/programs/ssmcc.pdf b/programs/ssmcc.pdf
new file mode 100644
index 0000000..9584302
Binary files /dev/null and b/programs/ssmcc.pdf differ
diff --git a/programs/ssxcc-binary.pdf b/programs/ssxcc-binary.pdf
new file mode 100644
index 0000000..e331acf
Binary files /dev/null and b/programs/ssxcc-binary.pdf differ
diff --git a/programs/ssxcc-frb.pdf b/programs/ssxcc-frb.pdf
new file mode 100644
index 0000000..5800c6a
Binary files /dev/null and b/programs/ssxcc-frb.pdf differ
diff --git a/programs/ssxcc-frb0.pdf b/programs/ssxcc-frb0.pdf
new file mode 100644
index 0000000..249eb11
Binary files /dev/null and b/programs/ssxcc-frb0.pdf differ
diff --git a/programs/ssxcc-wtd.pdf b/programs/ssxcc-wtd.pdf
new file mode 100644
index 0000000..ccb8de8
Binary files /dev/null and b/programs/ssxcc-wtd.pdf differ
diff --git a/programs/ssxcc-wtd0.pdf b/programs/ssxcc-wtd0.pdf
new file mode 100644
index 0000000..5f6b872
Binary files /dev/null and b/programs/ssxcc-wtd0.pdf differ
diff --git a/programs/ssxcc.pdf b/programs/ssxcc.pdf
new file mode 100644
index 0000000..d5aa42b
Binary files /dev/null and b/programs/ssxcc.pdf differ
diff --git a/programs/ssxcc0.pdf b/programs/ssxcc0.pdf
new file mode 100644
index 0000000..bd9a30f
Binary files /dev/null and b/programs/ssxcc0.pdf differ
diff --git a/programs/ssxcc3.pdf b/programs/ssxcc3.pdf
new file mode 100644
index 0000000..968c302
Binary files /dev/null and b/programs/ssxcc3.pdf differ
diff --git a/programs/straighten.pdf b/programs/straighten.pdf
index 7e36906..96866a1 100644
Binary files a/programs/straighten.pdf and b/programs/straighten.pdf differ
diff --git a/programs/strongchain.pdf b/programs/strongchain.pdf
index 2f35040..183916e 100644
Binary files a/programs/strongchain.pdf and b/programs/strongchain.pdf differ
diff --git a/programs/sudoku-dlx.pdf b/programs/sudoku-dlx.pdf
index 6b6354b..e06ec5d 100644
Binary files a/programs/sudoku-dlx.pdf and b/programs/sudoku-dlx.pdf differ
diff --git a/programs/sudoku-general-dlx.pdf b/programs/sudoku-general-dlx.pdf
index a9257d2..84a30d6 100644
Binary files a/programs/sudoku-general-dlx.pdf and b/programs/sudoku-general-dlx.pdf differ
diff --git a/programs/sudoku.pdf b/programs/sudoku.pdf
index 94533e4..35739c6 100644
Binary files a/programs/sudoku.pdf and b/programs/sudoku.pdf differ
diff --git a/programs/tcalc.pdf b/programs/tcalc.pdf
index 70ace90..d3da349 100644
Binary files a/programs/tcalc.pdf and b/programs/tcalc.pdf differ
diff --git a/programs/tictactoe0.pdf b/programs/tictactoe0.pdf
index f9e34cb..19a2599 100644
Binary files a/programs/tictactoe0.pdf and b/programs/tictactoe0.pdf differ
diff --git a/programs/tictactoe1.pdf b/programs/tictactoe1.pdf
index fe4fad4..5716b1e 100644
Binary files a/programs/tictactoe1.pdf and b/programs/tictactoe1.pdf differ
diff --git a/programs/tictactoe2.pdf b/programs/tictactoe2.pdf
index 488baf2..58aea2f 100644
Binary files a/programs/tictactoe2.pdf and b/programs/tictactoe2.pdf differ
diff --git a/programs/tictactoe3.pdf b/programs/tictactoe3.pdf
index bf45130..d47df3f 100644
Binary files a/programs/tictactoe3.pdf and b/programs/tictactoe3.pdf differ
diff --git a/programs/tictactoe4.pdf b/programs/tictactoe4.pdf
index f0a82f6..ac1ddc5 100644
Binary files a/programs/tictactoe4.pdf and b/programs/tictactoe4.pdf differ
diff --git a/programs/tictactoe5.pdf b/programs/tictactoe5.pdf
index 4616bb7..ed077f1 100644
Binary files a/programs/tictactoe5.pdf and b/programs/tictactoe5.pdf differ
diff --git a/programs/tictactoe6.pdf b/programs/tictactoe6.pdf
index cfb027d..66b2ea1 100644
Binary files a/programs/tictactoe6.pdf and b/programs/tictactoe6.pdf differ
diff --git a/programs/tictactoe7.pdf b/programs/tictactoe7.pdf
index 5229450..fc76873 100644
Binary files a/programs/tictactoe7.pdf and b/programs/tictactoe7.pdf differ
diff --git a/programs/togpap.pdf b/programs/togpap.pdf
index 278899e..e9c2a99 100644
Binary files a/programs/togpap.pdf and b/programs/togpap.pdf differ
diff --git a/programs/topswops-fwd.pdf b/programs/topswops-fwd.pdf
index 0a67b6a..517d277 100644
Binary files a/programs/topswops-fwd.pdf and b/programs/topswops-fwd.pdf differ
diff --git a/programs/topswops.pdf b/programs/topswops.pdf
index 9f4a829..465d8c5 100644
Binary files a/programs/topswops.pdf and b/programs/topswops.pdf differ
diff --git a/programs/torto-dlx.pdf b/programs/torto-dlx.pdf
index 77753a7..307761f 100644
Binary files a/programs/torto-dlx.pdf and b/programs/torto-dlx.pdf differ
diff --git a/programs/treeprobs.pdf b/programs/treeprobs.pdf
index b446c62..b4e5677 100644
Binary files a/programs/treeprobs.pdf and b/programs/treeprobs.pdf differ
diff --git a/programs/twintree-to-baxter.pdf b/programs/twintree-to-baxter.pdf
index 2303c7c..b2b6299 100644
Binary files a/programs/twintree-to-baxter.pdf and b/programs/twintree-to-baxter.pdf differ
diff --git a/programs/ulam-longlong.pdf b/programs/ulam-longlong.pdf
index 41f7343..c934734 100644
Binary files a/programs/ulam-longlong.pdf and b/programs/ulam-longlong.pdf differ
diff --git a/programs/ulam.pdf b/programs/ulam.pdf
index 760d364..8093dae 100644
Binary files a/programs/ulam.pdf and b/programs/ulam.pdf differ
diff --git a/programs/unavoidable.pdf b/programs/unavoidable.pdf
index b66663e..1947f3d 100644
Binary files a/programs/unavoidable.pdf and b/programs/unavoidable.pdf differ
diff --git a/programs/unavoidable2.pdf b/programs/unavoidable2.pdf
index c5059a4..1e8b3dc 100644
Binary files a/programs/unavoidable2.pdf and b/programs/unavoidable2.pdf differ
diff --git a/programs/unrank-parade1.pdf b/programs/unrank-parade1.pdf
new file mode 100644
index 0000000..e234c42
Binary files /dev/null and b/programs/unrank-parade1.pdf differ
diff --git a/programs/unrank-parade2.pdf b/programs/unrank-parade2.pdf
new file mode 100644
index 0000000..96d986d
Binary files /dev/null and b/programs/unrank-parade2.pdf differ
diff --git a/programs/vacillate.pdf b/programs/vacillate.pdf
index 4fc8d3e..75c9de1 100644
Binary files a/programs/vacillate.pdf and b/programs/vacillate.pdf differ
diff --git a/programs/viennot.pdf b/programs/viennot.pdf
index a8858c3..75ae6c9 100644
Binary files a/programs/viennot.pdf and b/programs/viennot.pdf differ
diff --git a/programs/whirlpool-count.pdf b/programs/whirlpool-count.pdf
index e36b77f..e3c07ad 100644
Binary files a/programs/whirlpool-count.pdf and b/programs/whirlpool-count.pdf differ
diff --git a/programs/whirlpool2n-decode.pdf b/programs/whirlpool2n-decode.pdf
index 3fce4c4..c3012a1 100644
Binary files a/programs/whirlpool2n-decode.pdf and b/programs/whirlpool2n-decode.pdf differ
diff --git a/programs/whirlpool2n-encode.pdf b/programs/whirlpool2n-encode.pdf
index b460cb2..d23b514 100644
Binary files a/programs/whirlpool2n-encode.pdf and b/programs/whirlpool2n-encode.pdf differ
diff --git a/programs/windmill-dominoes-dlx.pdf b/programs/windmill-dominoes-dlx.pdf
index e297685..e76ea46 100644
Binary files a/programs/windmill-dominoes-dlx.pdf and b/programs/windmill-dominoes-dlx.pdf differ
diff --git a/programs/word-rect-dlx.pdf b/programs/word-rect-dlx.pdf
index ae2c9f5..dbd8c17 100644
Binary files a/programs/word-rect-dlx.pdf and b/programs/word-rect-dlx.pdf differ
diff --git a/programs/xccdc-frb.pdf b/programs/xccdc-frb.pdf
new file mode 100644
index 0000000..e7fc6d1
Binary files /dev/null and b/programs/xccdc-frb.pdf differ
diff --git a/programs/xccdc-wtd.pdf b/programs/xccdc-wtd.pdf
new file mode 100644
index 0000000..97a852c
Binary files /dev/null and b/programs/xccdc-wtd.pdf differ
diff --git a/programs/xccdc.pdf b/programs/xccdc.pdf
new file mode 100644
index 0000000..5dd0c4d
Binary files /dev/null and b/programs/xccdc.pdf differ
diff --git a/programs/xccdc3.pdf b/programs/xccdc3.pdf
new file mode 100644
index 0000000..f3fe1f2
Binary files /dev/null and b/programs/xccdc3.pdf differ
diff --git a/programs/xgdance.pdf b/programs/xgdance.pdf
index bc1cfa1..b840d46 100644
Binary files a/programs/xgdance.pdf and b/programs/xgdance.pdf differ
diff --git a/programs/yplay.pdf b/programs/yplay.pdf
index 00c4710..87c97a1 100644
Binary files a/programs/yplay.pdf and b/programs/yplay.pdf differ
diff --git a/programs/zeilberger.pdf b/programs/zeilberger.pdf
index aa0c0b8..d8e629e 100644
Binary files a/programs/zeilberger.pdf and b/programs/zeilberger.pdf differ