The tabulated simulation results.
Total games played=10000000, total rounds=259143969, took 6919 seconds. Games that never needed 15 cards on the table: 3301418 (33.0 percent of all games). Games where no cards remain on the table at the end: 151438 (1.5 percent of all games). Selection mode="First found Set" (1), seed=918631837 In deck | Set | NoSet | Set:NoSet for 12 | Avg # of Sets --------+--------+-------+------------------+------------- 69 |9677848 |322152 | 30.0:1 | 2.79 66 |9489035 |507335 | 18.7:1 | 2.57 63 |9406550 |587826 | 16.0:1 | 2.48 60 |9376241 |617315 | 15.2:1 | 2.45 57 |9362718 |630536 | 14.8:1 | 2.44 54 |9356925 |636106 | 14.7:1 | 2.43 51 |9353343 |639666 | 14.6:1 | 2.43 48 |9350888 |641915 | 14.6:1 | 2.42 45 |9346579 |646225 | 14.5:1 | 2.42 42 |9344821 |647916 | 14.4:1 | 2.42 39 |9342289 |650375 | 14.4:1 | 2.42 36 |9342459 |650241 | 14.4:1 | 2.41 33 |9341794 |650937 | 14.4:1 | 2.41 30 |9340501 |652215 | 14.3:1 | 2.41 27 |9340421 |652399 | 14.3:1 | 2.41 24 |9339098 |653711 | 14.3:1 | 2.41 21 |9339339 |653363 | 14.3:1 | 2.41 18 |9339310 |653380 | 14.3:1 | 2.41 15 |9339886 |652808 | 14.3:1 | 2.41 12 |9339496 |653204 | 14.3:1 | 2.41 9 |9339001 |653769 | 14.3:1 | 2.41 6 |9338064 |654567 | 14.3:1 | 2.41 3 |9339064 |653540 | 14.3:1 | 2.41 0 |9303672 |689364 | 13.5:1 | 2.41 In deck | Set | NoSet | Set:NoSet for 15 | Avg # of Sets --------+--------+-------+------------------+------------- 69 | 0 | 0 | oo:1 | - 66 | 318522 | 3630 | 87.7:1 | 3.33 63 | 505341 | 5624 | 89.9:1 | 3.35 60 | 587006 | 6444 | 91.1:1 | 3.36 57 | 617013 | 6746 | 91.5:1 | 3.36 54 | 630313 | 6969 | 90.4:1 | 3.36 51 | 636084 | 6991 | 91.0:1 | 3.36 48 | 639460 | 7197 | 88.9:1 | 3.35 45 | 641916 | 7196 | 89.2:1 | 3.35 42 | 646158 | 7262 | 89.0:1 | 3.35 39 | 647843 | 7334 | 88.3:1 | 3.35 36 | 650411 | 7299 | 89.1:1 | 3.34 33 | 650272 | 7269 | 89.5:1 | 3.35 30 | 650922 | 7284 | 89.4:1 | 3.34 27 | 652319 | 7180 | 90.9:1 | 3.34 24 | 652388 | 7191 | 90.7:1 | 3.34 21 | 653604 | 7298 | 89.6:1 | 3.34 18 | 653351 | 7310 | 89.4:1 | 3.34 15 | 653384 | 7306 | 89.4:1 | 3.35 12 | 652814 | 7300 | 89.4:1 | 3.34 9 | 653274 | 7230 | 90.4:1 | 3.34 6 | 653630 | 7369 | 88.7:1 | 3.34 3 | 654540 | 7395 | 88.5:1 | 3.34 0 | 653972 | 6962 | 93.9:1 | 3.34 In deck | Set | NoSet | Set:NoSet for 18 | Avg # of Sets --------+--------+-------+------------------+------------- 69 | 0 | 0 | oo:1 | - 66 | 0 | 0 | oo:1 | - 63 | 3630 | 0 | oo:1 | 5.29 60 | 5624 | 0 | oo:1 | 5.33 57 | 6444 | 0 | oo:1 | 5.35 54 | 6746 | 0 | oo:1 | 5.39 51 | 6969 | 0 | oo:1 | 5.37 48 | 6991 | 0 | oo:1 | 5.33 45 | 7197 | 0 | oo:1 | 5.33 42 | 7195 | 1 | 7195.0:1 | 5.32 39 | 7261 | 2 | 3630.5:1 | 5.35 36 | 7335 | 1 | 7335.0:1 | 5.32 33 | 7300 | 0 | oo:1 | 5.33 30 | 7269 | 0 | oo:1 | 5.32 27 | 7284 | 0 | oo:1 | 5.35 24 | 7180 | 0 | oo:1 | 5.35 21 | 7191 | 0 | oo:1 | 5.35 18 | 7298 | 0 | oo:1 | 5.34 15 | 7310 | 0 | oo:1 | 5.34 12 | 7306 | 0 | oo:1 | 5.35 9 | 7300 | 0 | oo:1 | 5.31 6 | 7230 | 0 | oo:1 | 5.36 3 | 7368 | 1 | 7368.0:1 | 5.35 0 | 7394 | 2 | 3697.0:1 | 5.35 In deck | Set | NoSet | Set:NoSet for 21 | Avg # of Sets --------+--------+-------+------------------+------------- 69 | 0 | 0 | oo:1 | - 66 | 0 | 0 | oo:1 | - 63 | 0 | 0 | oo:1 | - 60 | 0 | 0 | oo:1 | - 57 | 0 | 0 | oo:1 | - 54 | 0 | 0 | oo:1 | - 51 | 0 | 0 | oo:1 | - 48 | 0 | 0 | oo:1 | - 45 | 0 | 0 | oo:1 | - 42 | 0 | 0 | oo:1 | - 39 | 1 | 0 | oo:1 | 10.00 36 | 2 | 0 | oo:1 | 6.50 33 | 1 | 0 | oo:1 | 8.00 30 | 0 | 0 | oo:1 | - 27 | 0 | 0 | oo:1 | - 24 | 0 | 0 | oo:1 | - 21 | 0 | 0 | oo:1 | - 18 | 0 | 0 | oo:1 | - 15 | 0 | 0 | oo:1 | - 12 | 0 | 0 | oo:1 | - 9 | 0 | 0 | oo:1 | - 6 | 0 | 0 | oo:1 | - 3 | 0 | 0 | oo:1 | - 0 | 1 | 0 | oo:1 | 9.00