Simulation 8Z37 Main
Contest 1 NT with 4-4 Majors?
by Richard PavlicekSimulation 8Z37 Main |
| by Richard Pavlicek |
Phil Hernandez of Vancouver, British Columbia, asked: “After a 1 NT opening on your right, is it profitable to make a takeout bid for the majors with only four cards in each and a balanced hand?” My answer would be an emphatic no, but I may be too old-fashioned. While I’m hardly conservative, my aggressive actions are inspired by shape, and balanced hands don’t cut it. Nonetheless, I thought it would be interesting to do a simulation. Suppose you hold the West hand after South opens 1 NT (15-17):
 | Any vul | West | North | East | South | |
 Q 10 7 4 |  | 1 NT | ||||
 A J 9 2 | ? | |||||
 8 7 | ||||||
 A 6 3 |
Assume you could bid 2 is an artificial takeout for the majors (Landy). Well, do you or don’t you? If it would depend on the vulnerability, make your decision for each of the four cases, as my simulation will attempt to cover all.
This is a difficult simulation, because the final contract will vary immensely. To reduce the complexity, I will exclude deals where partner likely would have acted on his own, as you would then be in the auction regardless, so it’s probably a tossup which option would work better — or I may reserve that for another simulation. Therefore, if you pass, you will defend whatever contract the opponents reach.
If you bid 2 , partner will usually bid 2 or 2 with 3+ cards; but he may invite game with 3 or 3 (which you will surely pass) or bid 4 or 4 to play. With no 3+ card major, partner will pass with long clubs or bid 2 to play; or rarely invite game with 2 NT, 3 or 3 . The opponents of course may ignore your intervention and proceed to their own contract, with the added knowledge of your length in the majors.
My program algorithms will determine the final contract on each sample deal, first if you pass, then if you bid. However, with all the variables and subjectivity involved, this is not perfect — and it never could be, because even the best experts often reach different contracts on the same deal. Some important issues when you bid: If you end up in a seven-card fit, you will be doubled if North has 7+ HCP and either North or South has four trumps. When North elects to bid further, he will eschew any major-suit contract, usually for notrump instead.
For the simulation I created 10,000 random deals with the West hand fixed, and these constraints: South, a 15-17 HCP 1 NT opening per my methods, which allow a 5-card major only if the doubleton is at least J-x; and East, less than 14 HCP and less than 6 playing tricks (hands with which he would rarely bid on his own). Results of my predicted contracts are determined with double-dummy play by both sides.
Results are shown below. The first table shows swings with N-S nonvul, first with E-W nonvul (green) then with E-W vul (red). The second table does the same with N-S vul. Plus values show a gain for pass; minus values show a loss, or a gain for bidding 2 . The bottom row of each table delivers the verdicts: Win percent indicates the winner at matchpoints or board-a-match (pass wins if over 50 percent). IMPs/deal indicates the winner at IMPs (pass wins if plus).
My instinct that pass is the winner was right, albeit with a caveat: With both sides nonvul, its win percent is only 48.76, which gives 2 a slight edge (51.24 percent) at matchpoints. At any other vulnerability and always at IMPs, pass is a big winner. Many (including this writer) would argue that matchpoints is not really bridge, so it seems wise to ignore the exception and never bid with balanced hands.
It may seem unfair that seven-card fits always get nailed for penalty when North has 7+ HCP and either North or South has four trumps, but this is compensated by escaping the ax (which could be just as brutal) when trumps are 3-3.
Some might wonder: If 2 wins at matchpoints with both sides nonvul, why would it not also win nonvul vs. vul? The answer lies in the occasional defeat of the N-S contract by two tricks (plus 200 instead of 100) which is better than any partscore you could make.
In actual play, the results would be closer. This is because partscore contracts fare about 4 percent better in actual play than at double-dummy; and specifically for 1 NT, this grows to 7 percent. (See Actual Play vs. Double-Dummy.) Therefore, the advantage for pass would be less, but the impact could never be enough to change the winner.
| Swing | IMPs | Times | Net Score | Net IMPs | Swing | IMPs | Times | Net Score | Net IMPs |
|---|---|---|---|---|---|---|---|---|---|
| +1150 | +15 | 1 | +1150 | +15 | +1200 | +15 | 1 | +1200 | +15 |
| +1000 | +14 | 1 | +1000 | +14 | +950 | +14 | 1 | +950 | +14 |
| +950 | +14 | 1 | +950 | +14 | +920 | +14 | 5 | +4600 | +70 |
| +940 | +14 | 2 | +1880 | +28 | +900 | +14 | 9 | +8100 | +126 |
| +920 | +14 | 5 | +4600 | +70 | +890 | +13 | 1 | +890 | +13 |
| +890 | +13 | 1 | +890 | +13 | +800 | +13 | 1 | +800 | +13 |
| +850 | +13 | 9 | +7650 | +117 | +740 | +12 | 2 | +1480 | +24 |
| +700 | +12 | 6 | +4200 | +72 | +700 | +12 | 12 | +8400 | +144 |
| +680 | +12 | 6 | +4080 | +72 | +680 | +12 | 3 | +2040 | +36 |
| +670 | +12 | 24 | +16080 | +288 | +660 | +12 | 1 | +660 | +12 |
| +660 | +12 | 1 | +660 | +12 | +650 | +12 | 14 | +9100 | +168 |
| +650 | +12 | 18 | +11700 | +216 | +630 | +12 | 4 | +2520 | +48 |
| +640 | +12 | 23 | +14720 | +276 | +620 | +12 | 6 | +3720 | +72 |
| +630 | +12 | 4 | +2520 | +48 | +600 | +12 | 84 | +50400 | +1008 |
| +620 | +12 | 6 | +3720 | +72 | +510 | +11 | 2 | +1020 | +22 |
| +600 | +12 | 13 | +7800 | +156 | +500 | +11 | 49 | +24500 | +539 |
| +550 | +11 | 81 | +44550 | +891 | +480 | +10 | 7 | +3360 | +70 |
| +510 | +11 | 2 | +1020 | +22 | +470 | +10 | 24 | +11280 | +240 |
| +500 | +11 | 5 | +2500 | +55 | +450 | +10 | 52 | +23400 | +520 |
| +480 | +10 | 4 | +1920 | +40 | +440 | +10 | 23 | +10120 | +230 |
| +450 | +10 | 41 | +18450 | +410 | +410 | +9 | 3 | +1230 | +27 |
| +410 | +9 | 3 | +1230 | +27 | +400 | +9 | 110 | +44000 | +990 |
| +400 | +9 | 110 | +44000 | +990 | +390 | +9 | 10 | +3900 | +90 |
| +390 | +9 | 10 | +3900 | +90 | +380 | +9 | 67 | +25460 | +603 |
| +380 | +9 | 82 | +31160 | +738 | +370 | +9 | 8 | +2960 | +72 |
| +370 | +9 | 72 | +26640 | +648 | +360 | +8 | 9 | +3240 | +72 |
| +360 | +8 | 9 | +3240 | +72 | +350 | +8 | 129 | +45150 | +1032 |
| +350 | +8 | 141 | +49350 | +1128 | +330 | +8 | 5 | +1650 | +40 |
| +340 | +8 | 18 | +6120 | +144 | +320 | +8 | 1 | +320 | +8 |
| +330 | +8 | 5 | +1650 | +40 | +300 | +7 | 90 | +27000 | +630 |
| +320 | +8 | 1 | +320 | +8 | +290 | +7 | 3 | +870 | +21 |
| +300 | +7 | 3 | +900 | +21 | +260 | +6 | 12 | +3120 | +72 |
| +250 | +6 | 17 | +4250 | +102 | +250 | +6 | 303 | +75750 | +1818 |
| +220 | +6 | 1 | +220 | +6 | +230 | +6 | 13 | +2990 | +78 |
| +210 | +5 | 39 | +8190 | +195 | +220 | +6 | 2 | +440 | +12 |
| +200 | +5 | 196 | +39200 | +980 | +210 | +5 | 43 | +9030 | +215 |
| +190 | +5 | 14 | +2660 | +70 | +200 | +5 | 259 | +51800 | +1295 |
| +180 | +5 | 80 | +14400 | +400 | +190 | +5 | 46 | +8740 | +230 |
| +170 | +5 | 20 | +3400 | +100 | +180 | +5 | 96 | +17280 | +480 |
| +160 | +4 | 18 | +2880 | +72 | +170 | +5 | 85 | +14450 | +425 |
| +150 | +4 | 487 | +73050 | +1948 | +160 | +4 | 127 | +20320 | +508 |
| +140 | +4 | 5 | +700 | +20 | +150 | +4 | 601 | +90150 | +2404 |
| +130 | +4 | 4 | +520 | +16 | +140 | +4 | 23 | +3220 | +92 |
| +110 | +3 | 1 | +110 | +3 | +130 | +4 | 42 | +5460 | +168 |
| +100 | +3 | 703 | +70300 | +2109 | +120 | +3 | 1 | +120 | +3 |
| +90 | +3 | 3 | +270 | +9 | +110 | +3 | 20 | +2200 | +60 |
| +80 | +2 | 27 | +2160 | +54 | +100 | +3 | 2 | +200 | +6 |
| +70 | +2 | 23 | +1610 | +46 | +90 | +3 | 196 | +17640 | +588 |
| +60 | +2 | 32 | +1920 | +64 | +80 | +2 | 5 | +400 | +10 |
| +50 | +2 | 26 | +1300 | +52 | +60 | +2 | 302 | +18120 | +604 |
| +40 | +1 | 48 | +1920 | +48 | +50 | +2 | 23 | +1150 | +46 |
| +30 | +1 | 64 | +1920 | +64 | +40 | +1 | 16 | +640 | +16 |
| +20 | +1 | 4 | +80 | +4 | +30 | +1 | 89 | +2670 | +89 |
| +10 | 0 | 476 | +4760 | 0 | +20 | +1 | 2 | +40 | +2 |
| 0 | 0 | 3760 | 0 | 0 | +10 | 0 | 383 | +3830 | 0 |
| -10 | 0 | 206 | -2060 | 0 | 0 | 0 | 3757 | 0 | 0 |
| -20 | -1 | 431 | -8620 | -431 | -10 | 0 | 327 | -3270 | 0 |
| -30 | -1 | 6 | -180 | -6 | -20 | -1 | 427 | -8540 | -427 |
| -40 | -1 | 785 | -31400 | -785 | -30 | -1 | 5 | -150 | -5 |
| -50 | -2 | 123 | -6150 | -246 | -40 | -1 | 693 | -27720 | -693 |
| -60 | -2 | 343 | -20580 | -686 | -50 | -2 | 126 | -6300 | -252 |
| -70 | -2 | 269 | -18830 | -538 | -60 | -2 | 26 | -1560 | -52 |
| -80 | -2 | 11 | -880 | -22 | -70 | -2 | 259 | -18130 | -518 |
| -90 | -3 | 237 | -21330 | -711 | -80 | -2 | 11 | -880 | -22 |
| -100 | -3 | 50 | -5000 | -150 | -90 | -3 | 8 | -720 | -24 |
| -110 | -3 | 1 | -110 | -3 | -100 | -3 | 155 | -15500 | -465 |
| -120 | -3 | 39 | -4680 | -117 | -110 | -3 | 1 | -110 | -3 |
| -130 | -4 | 1 | -130 | -4 | -120 | -3 | 90 | -10800 | -270 |
| -150 | -4 | 3 | -450 | -12 | -130 | -4 | 24 | -3120 | -96 |
| -160 | -4 | 20 | -3200 | -80 | -150 | -4 | 10 | -1500 | -40 |
| -180 | -5 | 20 | -3600 | -100 | -160 | -4 | 20 | -3200 | -80 |
| -190 | -5 | 25 | -4750 | -125 | -170 | -5 | 1 | -170 | -5 |
| -200 | -5 | 195 | -39000 | -975 | -180 | -5 | 20 | -3600 | -100 |
| -210 | -5 | 15 | -3150 | -75 | -190 | -5 | 25 | -4750 | -125 |
| -220 | -6 | 48 | -10560 | -288 | -200 | -5 | 192 | -38400 | -960 |
| -230 | -6 | 148 | -34040 | -888 | -210 | -5 | 15 | -3150 | -75 |
| -240 | -6 | 12 | -2880 | -72 | -220 | -6 | 43 | -9460 | -258 |
| -250 | -6 | 17 | -4250 | -102 | -230 | -6 | 148 | -34040 | -888 |
| -260 | -6 | 26 | -6760 | -156 | -240 | -6 | 12 | -2880 | -72 |
| -270 | -7 | 69 | -18630 | -483 | -250 | -6 | 13 | -3250 | -78 |
| -280 | -7 | 15 | -4200 | -105 | -260 | -6 | 26 | -6760 | -156 |
| -290 | -7 | 3 | -870 | -21 | -270 | -7 | 8 | -2160 | -56 |
| -300 | -7 | 5 | -1500 | -35 | -280 | -7 | 15 | -4200 | -105 |
| -310 | -7 | 2 | -620 | -14 | -290 | -7 | 3 | -870 | -21 |
| -320 | -8 | 36 | -11520 | -288 | -300 | -7 | 19 | -5700 | -133 |
| -370 | -9 | 14 | -5180 | -126 | -310 | -7 | 2 | -620 | -14 |
| -400 | -9 | 1 | -400 | -9 | -320 | -8 | 23 | -7360 | -184 |
| -420 | -9 | 2 | -840 | -18 | -350 | -8 | 1 | -350 | -8 |
| -470 | -10 | 28 | -13160 | -280 | -370 | -9 | 2 | -740 | -18 |
| -500 | -11 | 2 | -1000 | -22 | -470 | -10 | 28 | -13160 | -280 |
| -520 | -11 | 17 | -8840 | -187 | -500 | -11 | 2 | -1000 | -22 |
| -530 | -11 | 3 | -1590 | -33 | -520 | -11 | 17 | -8840 | -187 |
| -550 | -11 | 2 | -1100 | -22 | -530 | -11 | 3 | -1590 | -33 |
| -560 | -11 | 3 | -1680 | -33 | -550 | -11 | 2 | -1100 | -22 |
| -570 | -11 | 9 | -5130 | -99 | -560 | -11 | 3 | -1680 | -33 |
| -580 | -11 | 1 | -580 | -11 | -570 | -11 | 9 | -5130 | -99 |
| -600 | -12 | 1 | -600 | -12 | -580 | -11 | 1 | -580 | -11 |
| -600 | -12 | 1 | -600 | -12 | |||||
| Totals | 10000 | +246340 | +4799 | Totals | 10000 | +410440 | +9288 | ||
| Win percent: 48.76 | IMPs/deal: +0.4799 | Win percent: 53.05 | IMPs/deal: +0.9288 | ||||||
| Swing | IMPs | Times | Net Score | Net IMPs | Swing | IMPs | Times | Net Score | Net IMPs |
|---|---|---|---|---|---|---|---|---|---|
| +1450 | +16 | 1 | +1450 | +16 | +1500 | +17 | 1 | +1500 | +17 |
| +1300 | +16 | 1 | +1300 | +16 | +1250 | +15 | 1 | +1250 | +15 |
| +1250 | +15 | 1 | +1250 | +15 | +1220 | +15 | 5 | +6100 | +75 |
| +1240 | +15 | 2 | +2480 | +30 | +1200 | +15 | 9 | +10800 | +135 |
| +1220 | +15 | 5 | +6100 | +75 | +1190 | +15 | 1 | +1190 | +15 |
| +1190 | +15 | 1 | +1190 | +15 | +1100 | +15 | 1 | +1100 | +15 |
| +1150 | +15 | 9 | +10350 | +135 | +1040 | +14 | 2 | +2080 | +28 |
| +1000 | +14 | 6 | +6000 | +84 | +1000 | +14 | 12 | +12000 | +168 |
| +980 | +14 | 6 | +5880 | +84 | +980 | +14 | 3 | +2940 | +42 |
| +970 | +14 | 24 | +23280 | +336 | +960 | +14 | 1 | +960 | +14 |
| +960 | +14 | 1 | +960 | +14 | +950 | +14 | 14 | +13300 | +196 |
| +950 | +14 | 18 | +17100 | +252 | +930 | +14 | 4 | +3720 | +56 |
| +940 | +14 | 23 | +21620 | +322 | +920 | +14 | 6 | +5520 | +84 |
| +930 | +14 | 4 | +3720 | +56 | +900 | +14 | 82 | +73800 | +1148 |
| +920 | +14 | 6 | +5520 | +84 | +800 | +13 | 13 | +10400 | +169 |
| +900 | +14 | 13 | +11700 | +182 | +780 | +13 | 3 | +2340 | +39 |
| +850 | +13 | 81 | +68850 | +1053 | +770 | +13 | 24 | +18480 | +312 |
| +800 | +13 | 5 | +4000 | +65 | +760 | +13 | 2 | +1520 | +26 |
| +760 | +13 | 2 | +1520 | +26 | +750 | +13 | 4 | +3000 | +52 |
| +730 | +12 | 4 | +2920 | +48 | +740 | +12 | 23 | +17020 | +276 |
| +710 | +12 | 3 | +2130 | +36 | +730 | +12 | 4 | +2920 | +48 |
| +700 | +12 | 114 | +79800 | +1368 | +710 | +12 | 3 | +2130 | +36 |
| +690 | +12 | 10 | +6900 | +120 | +700 | +12 | 74 | +51800 | +888 |
| +680 | +12 | 82 | +55760 | +984 | +690 | +12 | 10 | +6900 | +120 |
| +670 | +12 | 72 | +48240 | +864 | +680 | +12 | 67 | +45560 | +804 |
| +660 | +12 | 9 | +5940 | +108 | +670 | +12 | 8 | +5360 | +96 |
| +650 | +12 | 39 | +25350 | +468 | +660 | +12 | 9 | +5940 | +108 |
| +640 | +12 | 18 | +11520 | +216 | +650 | +12 | 27 | +17550 | +324 |
| +630 | +12 | 5 | +3150 | +60 | +630 | +12 | 5 | +3150 | +60 |
| +620 | +12 | 1 | +620 | +12 | +620 | +12 | 1 | +620 | +12 |
| +600 | +12 | 35 | +21000 | +420 | +600 | +12 | 107 | +64200 | +1284 |
| +550 | +11 | 104 | +57200 | +1144 | +500 | +11 | 92 | +46000 | +1012 |
| +410 | +9 | 39 | +15990 | +351 | +480 | +10 | 15 | +7200 | +150 |
| +400 | +9 | 127 | +50800 | +1143 | +470 | +10 | 64 | +30080 | +640 |
| +390 | +9 | 14 | +5460 | +126 | +450 | +10 | 10 | +4500 | +100 |
| +380 | +9 | 105 | +39900 | +945 | +440 | +10 | 18 | +7920 | +180 |
| +370 | +9 | 30 | +11100 | +270 | +410 | +9 | 39 | +15990 | +351 |
| +360 | +8 | 18 | +6480 | +144 | +400 | +9 | 193 | +77200 | +1737 |
| +350 | +8 | 23 | +8050 | +184 | +390 | +9 | 14 | +5460 | +126 |
| +330 | +8 | 4 | +1320 | +32 | +380 | +9 | 80 | +30400 | +720 |
| +320 | +8 | 1 | +320 | +8 | +370 | +9 | 7 | +2590 | +63 |
| +310 | +7 | 1 | +310 | +7 | +360 | +8 | 18 | +6480 | +144 |
| +300 | +7 | 98 | +29400 | +686 | +350 | +8 | 8 | +2800 | +64 |
| +280 | +7 | 2 | +560 | +14 | +330 | +8 | 4 | +1320 | +32 |
| +250 | +6 | 287 | +71750 | +1722 | +320 | +8 | 1 | +320 | +8 |
| +220 | +6 | 15 | +3300 | +90 | +310 | +7 | 1 | +310 | +7 |
| +210 | +5 | 16 | +3360 | +80 | +300 | +7 | 480 | +144000 | +3360 |
| +200 | +5 | 300 | +60000 | +1500 | +290 | +7 | 3 | +870 | +21 |
| +190 | +5 | 8 | +1520 | +40 | +280 | +7 | 2 | +560 | +14 |
| +180 | +5 | 50 | +9000 | +250 | +260 | +6 | 12 | +3120 | +72 |
| +150 | +4 | 599 | +89850 | +2396 | +250 | +6 | 7 | +1750 | +42 |
| +130 | +4 | 1 | +130 | +4 | +230 | +6 | 13 | +2990 | +78 |
| +120 | +3 | 3 | +360 | +9 | +220 | +6 | 16 | +3520 | +96 |
| +110 | +3 | 237 | +26070 | +711 | +210 | +5 | 20 | +4200 | +100 |
| +100 | +3 | 33 | +3300 | +99 | +200 | +5 | 704 | +140800 | +3520 |
| +90 | +3 | 13 | +1170 | +39 | +190 | +5 | 40 | +7600 | +200 |
| +80 | +2 | 226 | +18080 | +452 | +180 | +5 | 76 | +13680 | +380 |
| +70 | +2 | 2 | +140 | +4 | +170 | +5 | 24 | +4080 | +120 |
| +60 | +2 | 22 | +1320 | +44 | +160 | +4 | 109 | +17440 | +436 |
| +50 | +2 | 41 | +2050 | +82 | +150 | +4 | 27 | +4050 | +108 |
| +40 | +1 | 45 | +1800 | +45 | +130 | +4 | 39 | +5070 | +156 |
| +30 | +1 | 15 | +450 | +15 | +120 | +3 | 4 | +480 | +12 |
| +20 | +1 | 6 | +120 | +6 | +110 | +3 | 256 | +28160 | +768 |
| +10 | 0 | 697 | +6970 | 0 | +100 | +3 | 17 | +1700 | +51 |
| 0 | 0 | 3741 | 0 | 0 | +90 | +3 | 206 | +18540 | +618 |
| -10 | 0 | 223 | -2230 | 0 | +80 | +2 | 219 | +17520 | +438 |
| -20 | -1 | 444 | -8880 | -444 | +70 | +2 | 2 | +140 | +4 |
| -30 | -1 | 3 | -90 | -3 | +60 | +2 | 292 | +17520 | +584 |
| -40 | -1 | 329 | -13160 | -329 | +50 | +2 | 40 | +2000 | +80 |
| -50 | -2 | 68 | -3400 | -136 | +40 | +1 | 13 | +520 | +13 |
| -60 | -2 | 317 | -19020 | -634 | +30 | +1 | 39 | +1170 | +39 |
| -70 | -2 | 41 | -2870 | -82 | +20 | +1 | 4 | +80 | +4 |
| -80 | -2 | 6 | -480 | -12 | +10 | 0 | 604 | +6040 | 0 |
| -90 | -3 | 229 | -20610 | -687 | 0 | 0 | 3738 | 0 | 0 |
| -100 | -3 | 38 | -3800 | -114 | -10 | 0 | 344 | -3440 | 0 |
| -120 | -3 | 26 | -3120 | -78 | -20 | -1 | 403 | -8060 | -403 |
| -150 | -4 | 1 | -150 | -4 | -30 | -1 | 2 | -60 | -2 |
| -180 | -5 | 20 | -3600 | -100 | -40 | -1 | 237 | -9480 | -237 |
| -200 | -5 | 201 | -40200 | -1005 | -50 | -2 | 67 | -3350 | -134 |
| -210 | -5 | 23 | -4830 | -115 | -70 | -2 | 29 | -2030 | -58 |
| -230 | -6 | 148 | -34040 | -888 | -80 | -2 | 6 | -480 | -12 |
| -240 | -6 | 25 | -6000 | -150 | -100 | -3 | 55 | -5500 | -165 |
| -250 | -6 | 13 | -3250 | -78 | -120 | -3 | 10 | -1200 | -30 |
| -260 | -6 | 25 | -6500 | -150 | -150 | -4 | 3 | -450 | -12 |
| -270 | -7 | 12 | -3240 | -84 | -170 | -5 | 1 | -170 | -5 |
| -280 | -7 | 15 | -4200 | -105 | -180 | -5 | 20 | -3600 | -100 |
| -290 | -7 | 2 | -580 | -14 | -200 | -5 | 201 | -40200 | -1005 |
| -300 | -7 | 4 | -1200 | -28 | -210 | -5 | 23 | -4830 | -115 |
| -310 | -7 | 14 | -4340 | -98 | -220 | -6 | 37 | -8140 | -222 |
| -320 | -8 | 2 | -640 | -16 | -230 | -6 | 148 | -34040 | -888 |
| -340 | -8 | 12 | -4080 | -96 | -240 | -6 | 25 | -6000 | -150 |
| -370 | -9 | 3 | -1110 | -27 | -250 | -6 | 17 | -4250 | -102 |
| -400 | -9 | 4 | -1600 | -36 | -260 | -6 | 25 | -6500 | -150 |
| -410 | -9 | 1 | -410 | -9 | -270 | -7 | 14 | -3780 | -98 |
| -420 | -9 | 38 | -15960 | -342 | -280 | -7 | 15 | -4200 | -105 |
| -440 | -10 | 1 | -440 | -10 | -290 | -7 | 2 | -580 | -14 |
| -450 | -10 | 4 | -1800 | -40 | -300 | -7 | 4 | -1200 | -28 |
| -470 | -10 | 64 | -30080 | -640 | -310 | -7 | 14 | -4340 | -98 |
| -500 | -11 | 3 | -1500 | -33 | -320 | -8 | 64 | -20480 | -512 |
| -520 | -11 | 34 | -17680 | -374 | -340 | -8 | 12 | -4080 | -96 |
| -570 | -11 | 14 | -7980 | -154 | -350 | -8 | 3 | -1050 | -24 |
| -600 | -12 | 1 | -600 | -12 | -370 | -9 | 4 | -1480 | -36 |
| -620 | -12 | 2 | -1240 | -24 | -400 | -9 | 1 | -400 | -9 |
| -720 | -12 | 28 | -20160 | -336 | -410 | -9 | 1 | -410 | -9 |
| -730 | -12 | 3 | -2190 | -36 | -420 | -9 | 33 | -13860 | -297 |
| -750 | -13 | 2 | -1500 | -26 | -440 | -10 | 1 | -440 | -10 |
| -760 | -13 | 3 | -2280 | -39 | -470 | -10 | 3 | -1410 | -30 |
| -780 | -13 | 1 | -780 | -13 | -520 | -11 | 11 | -5720 | -121 |
| -820 | -13 | 17 | -13940 | -221 | -550 | -11 | 1 | -550 | -11 |
| -850 | -13 | 2 | -1700 | -26 | -570 | -11 | 2 | -1140 | -22 |
| -920 | -14 | 9 | -8280 | -126 | -720 | -12 | 28 | -20160 | -336 |
| -950 | -14 | 1 | -950 | -14 | -730 | -12 | 3 | -2190 | -36 |
| -750 | -13 | 2 | -1500 | -26 | |||||
| -760 | -13 | 3 | -2280 | -39 | |||||
| -780 | -13 | 1 | -780 | -13 | |||||
| -820 | -13 | 17 | -13940 | -221 | |||||
| -850 | -13 | 2 | -1700 | -26 | |||||
| -920 | -14 | 9 | -8280 | -126 | |||||
| -950 | -14 | 1 | -950 | -14 | |||||
| Totals | 10000 | +658540 | +12218 | Totals | 10000 | +822640 | +17163 | ||
| Win percent: 56.53 | IMPs/deal: +1.2218 | Win percent: 62.27 | IMPs/deal: +1.7163 | ||||||
| Simulation 8Z37 Main |  | Top Contest 1 NT with 4-4 Majors? |
Sample DealsBelow are 100 of the 10,000 deals, including the first and last 20. The 60 selected deals in between alternate between hefty gains for each option. Contracts and tricks won with double-dummy play are shown first if you pass, second if you bid 2 . Rotating vulnerability is added to indicate the appropriate signed IMPs for pass.
| 1. | J 8 6 10 8 5 9 3 2 K J 9 8
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 |  | 9 3 Q 6 4 A Q 6 5 10 7 5 4
|
| 1 NT S → 7 2 E → 7Pass -1 | A K 5 2 K 7 3 K J 10 4 Q 2 | |
| 2. | 3 2 10 8 5 4 A 10 3 10 9 8 5
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 |  | A 9 8 6 K 7 6 J 6 5 4 J 4
|
| 1 NT S → 6 3 E → 8Pass +4 | K J 5 Q 3 K Q 9 2 K Q 7 2 | |
| 3. | 8 6 5 10 8 5 3 J 9 3 Q 10 8
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 |  | K 9 2 K 7 6 A 5 4 2 7 5 2
|
| 1 NT S → 5 3 E → 8Pass +5 | A J 3 Q 4 K Q 10 6 K J 9 4 | |
| 4. | K 9 6 5 8 4 3 J 10 5 10 9 8
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 |  | 8 3 10 7 K 9 4 3 K Q 5 4 2
|
| 1 NT S → 6 2 W → 7Pass +5 | A J 2 K Q 6 5 A Q 6 2 J 7 | |
| 5. | 6 3 2 8 4 10 6 5 4 10 9 7 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K 9 5 K Q 10 7 6 A 3 2 5 4
|
| 1 NT S → 3 4 E → 10Pass -6 | A J 8 5 3 K Q J 9 K Q J 8 | |
| 6. | J 6 10 6 4 3 J 4 3 K Q 8 7
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K 9 2 8 7 K 10 9 6 5 2 J 2
|
| 1 NT S → 7 2 × E → 6Pass +5 | A 8 5 3 K Q 5 A Q 10 9 5 4 | |
| 7. | 3 8 5 3 K Q 5 4 2 10 9 8 7
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K J 9 5 Q 10 6 10 6 3 K 5 2
|
| 1 NT S → 6 2 E → 9Pass -3 | A 8 6 2 K 7 4 A J 9 Q J 4 | |
| 8. | J 2 K Q Q 6 5 4 3 2 K Q 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 9 5 3 10 8 6 5 4 9 10 9 7 5
|
| 5 S → 11 5 S → 11Pass = | A K 8 6 7 3 A K J 10 J 8 4 | |
| 9. | 9 8 3 10 8 5 3 A K J 2 10 7
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 6 2 Q 7 6 Q 6 5 Q 9 5 4 2
|
| 2 NT S → 7 2 × E → 6Pass +8 | A K J 5 K 4 10 9 4 3 K J 8 | |
| 10. | 8 3 10 6 Q 10 9 5 4 Q 7 5 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | A 5 2 K 7 5 3 6 3 2 J 10 8
|
| 1 NT S → 6 2 E → 8Pass = | K J 9 6 Q 8 4 A K J K 9 4 | |
| Simulation 8Z37 Main | | Top Contest 1 NT with 4-4 Majors? |
| 11. | 9 6 3 2 K 8 J 10 5 3 10 9 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K J 5 6 5 4 3 K 4 2 J 8 5
|
| 1 NT S → 7 2 E → 6Pass +3 | A 8 Q 10 7 A Q 9 6 K Q 7 4 | |
| 12. | K J 6 3 10 5 4 J 10 9 K 9 5
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 8 5 8 6 3 A 5 4 3 Q 10 4 2
|
| 2 NT S → 8 2 NT S → 8 Pass = | A 9 2 K Q 7 K Q 6 2 J 8 7 | |
| 13. | K 6 5 3 2 8 4 Q 5 2 K 5 4
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 8 K 10 3 10 9 6 3 9 8 7 2
|
| 3 NT S → 8 2 × E → 6Pass +8 | A 9 Q 7 6 5 A K J 4 Q J 10 | |
| 14. | K 8 3 Q 8 4 3 10 5 3 10 5 4
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | A 9 5 10 7 6 J 9 4 2 Q 9 8
|
| 1 NT S → 6 2 E → 7Pass +4 | J 6 2 K 5 A K Q 6 K J 7 2 | |
| 15. | K 5 3 5 10 9 3 2 Q 10 9 7 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 9 8 6 K 8 7 6 K J 4 J 8
|
| 1 NT S → 9 2 E → 7Pass -2 | A 2 Q 10 4 3 A Q 6 5 K 5 4 | |
| 16. | J 8 5 10 4 K 9 6 5 2 10 8 4
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 9 6 3 2 K Q 6 Q 4 3 K 9 5
|
| 1 NT S → 6 3 E → 7Pass +7 | A K 8 7 5 3 A J 10 Q J 7 2 | |
| 17. | J 8 5 2 7 4 A 9 5 3 K Q 9
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 9 3 10 8 5 Q J 6 4 2 J 8 2
|
| 3 NT S → 9 2 × E → 4Pass +9 | A K 6 K Q 6 3 K 10 10 7 5 4 | |
| 18. | J 8 5 3 8 6 5 4 K 3 9 8 5
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K 2 Q 10 3 9 6 4 2 Q J 10 4
|
| 1 NT S → 7 2 E → 7Pass -1 | A 9 6 K 7 A Q J 10 5 K 7 2 | |
| 19. | 6 5 8 7 3 10 9 6 4 3 J 9 5
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 8 3 K 10 4 A 2 K Q 10 4 2
|
| 1 NT S → 3 4 E → 10Pass -9 | A K 9 2 Q 6 5 K Q J 5 8 7 | |
| 20. | 6 3 Q 8 7 9 6 5 3 2 J 9 8
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K J 9 2 10 6 5 K Q 10 4 10 7
|
| 1 NT S → 6 3 E → 9Pass -1 | A 8 5 K 4 3 A J K Q 5 4 2 | |
| Simulation 8Z37 Main | | Top Contest 1 NT with 4-4 Majors? |
| 38. | J 3 K 10 7 K Q 5 2 K 10 8 5
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 9 6 5 6 3 10 6 4 3 J 9 4 2
|
| 3 NT S → 10 2 × E → 3Pass +10 | A K 8 2 Q 8 5 4 A J 9 Q 7 | |
| 55. | 3 8 5 3 J 10 3 J 10 7 5 4 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | A J 8 5 2 Q 6 4 9 6 5 K 8
|
| 3 S → 7 4 E → 10Pass -11 | K 9 6 K 10 7 A K Q 4 2 Q 9 | |
| 56. | J 5 2 7 6 K J 3 2 K J 7 4
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 9 6 3 10 8 3 Q 10 4 Q 9 8 5
|
| 3 NT S → 7 2 × E → 6Pass +12 | A K 8 K Q 5 4 A 9 6 5 10 2 | |
| 74. | 9 3 6 Q J 9 5 3 J 9 8 7 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | A 6 5 2 Q 10 7 4 K 10 6 4 10
|
| 1 NT S → 5 4 E → 10Pass -6 | K J 8 K 8 5 3 A 2 K Q 5 4 | |
| 80. | K 5 Q 10 7 4 J 6 4 2 J 5 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 9 6 3 K 8 6 Q 10 9 5 9 8 4
|
| 1 NT S → 8 2 × E → 5Pass +12 | A J 8 2 5 3 A K 3 K Q 10 7 | |
| 473. | — 8 6 3 J 10 9 5 2 J 10 8 7 4
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | A K J 9 5 2 7 5 4 Q 9 5 2
|
| 1 NT S → 5 4 E → 10Pass -8 | 8 6 3 K Q 10 A K 6 4 3 K Q | |
| 486. | 9 6 3 7 6 A K J 3 Q 9 8 4
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 8 5 K 8 5 10 6 5 4 2 J 7 5
|
| 3 NT S → 8 2 × E → 6Pass +9 | A K J 2 Q 10 4 3 Q 9 K 10 2 | |
| 569. | J 9 2 6 5 4 3 9 6 3 2 8 5
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K 8 6 3 K Q K Q 5 4 7 4 2
|
| 1 NT S → 5 4 E → 10Pass -8 | A 5 10 8 7 A J 10 K Q J 10 9 | |
| 575. | A 6 3 2 8 6 A Q 10 6 J 7 5
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 9 8 5 10 7 3 J 5 3 2 10 9 4
|
| 3 NT S → 10 2 × E → 4Pass +12 | K J K Q 5 4 K 9 4 K Q 8 2 | |
| 587. | A 6 3 2 7 5 K 9 5 3 8 7 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K 9 10 8 3 J 6 4 2 Q J 10 5
|
| 1 NT S → 5 2 × E → 8Pass -11 | J 8 5 K Q 6 4 A Q 10 K 9 4 | |
| Simulation 8Z37 Main | | Top Contest 1 NT with 4-4 Majors? |
| 595. | 9 8 5 3 2 K Q 7 4 J 4 K 10
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 6 10 A 10 9 5 2 9 8 7 4 2
|
| 3 S → 9 2 × E → 6Pass +8 | A K 8 6 5 3 K Q 6 3 Q J 5 | |
| 667. | J 8 5 2 7 3 Q 10 5 2 8 7 5
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K 6 Q 8 6 5 4 J 6 4 K Q 4
|
| 1 NT S → 5 4 E → 10Pass -11 | A 9 3 K 10 A K 9 3 J 10 9 2 | |
| 675. | J 2 K Q 7 3 Q 10 6 4 3 9 4
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | A 5 3 6 5 J 9 5 J 8 7 5 2
|
| 2 NT S → 9 2 × E → 5Pass +12 | K 9 8 6 10 8 4 A K 2 K Q 10 | |
| 767. | K 9 6 2 5 Q 9 6 5 4 3 Q 8
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 5 Q 10 8 4 K 10 2 J 9 7 4 2
|
| 4 S → 10 3 NT S → 7 Pass -13 | A J 8 3 K 7 6 3 A J K 10 5 | |
| 776. | K 6 5 3 Q 10 4 Q 6 5 2 K 7
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 9 8 8 6 J 9 4 3 Q 10 8 5
|
| 3 NT S → 9 2 × E → 4Pass +11 | A 2 K 7 5 3 A K 10 J 9 4 2 | |
| 792. | A 8 6 5 3 2 10 A 9 6 K 7 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | — K 7 5 4 3 10 4 3 10 9 8 5 4
|
| 4 S → 10 3 NT S → 7 Pass -13 | K J 9 Q 8 6 K Q J 5 2 Q J | |
| 801. | K 6 K Q 6 4 Q 10 9 3 Q J 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 9 5 2 10 3 J 6 5 10 9 8 5 4
|
| 3 NT S → 11 2 × E → 4Pass +8 | A J 8 3 8 7 5 A K 4 2 K 7 | |
| 817. | A 9 3 7 6 5 3 9 4 2 Q J 9
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K 8 K 10 8 J 10 6 3 8 7 5 2
|
| 1 NT S → 6 2 × E → 8Pass -9 | J 6 5 2 Q 4 A K Q 5 K 10 4 | |
| 819. | — 8 7 6 5 A Q 10 9 6 2 K J 8
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 8 6 5 3 2 3 J 4 3 9 5 2
|
| 4 S → 9 3 NT S → 11 Pass +13 | A K 9 K Q 10 4 K 5 Q 10 7 4 | |
| 855. | 8 6 5 7 6 4 5 4 3 Q J 10 8
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | A K 9 10 8 5 3 J 10 6 K 9 5
|
| 1 NT S → 6 4 E → 10Pass -11 | J 3 2 K Q A K Q 9 2 7 4 2 | |
| Simulation 8Z37 Main | | Top Contest 1 NT with 4-4 Majors? |
| 860. | 8 5 Q 6 5 3 K 9 3 K 8 7 5
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 9 6 2 K 8 J 5 4 2 J 10 9 2
|
| 3 NT S → 8 2 × E → 6Pass +12 | A K J 3 10 7 4 A Q 10 6 Q 4 | |
| 909. | 8 5 2 8 J 10 9 6 4 2 8 4 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K J 6 10 7 6 5 4 A Q Q J 5
|
| 3 S → 7 4 E → 10Pass -8 | A 9 3 K Q 3 K 5 3 K 10 9 7 | |
| 912. | A K 3 2 K 10 4 2 Q 10 9 8 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 9 6 5 8 7 3 J 10 9 5 3 7 4
|
| 3 NT S → 11 2 × E → 3Pass +12 | J 8 Q 6 5 4 A K Q 6 K J 5 | |
| 922. | 5 K Q 10 8 3 K 10 6 3 2 Q 10
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K J 8 6 3 7 5 4 9 8 7 5 2
|
| 4 S → 10 3 NT S → 7 Pass -11 | A 9 2 6 5 4 A Q J 9 K J 4 | |
| 923. | A K 9 8 7 6 9 5 2 J 8 7 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 3 2 Q 5 3 Q J 10 4 10 9 4
|
| 2 NT S → 7 2 × E → 5Pass +13 | 6 5 K 10 8 4 A K 6 3 K Q 5 | |
| 946. | — Q 10 7 6 5 4 A 3 2 10 8 4 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | A K 8 6 5 8 J 10 6 5 9 7 5
|
| 3 S → 10 2 NT S → 6 Pass -7 | J 9 3 2 K 3 K Q 9 4 K Q J | |
| 947. | A 8 2 7 4 Q 6 5 2 J 9 5 4
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 6 5 Q 6 5 J 9 4 3 Q 8 7 2
|
| 1 NT S → 8 2 × E → 6Pass +9 | K J 9 3 K 10 8 3 A K 10 K 10 | |
| 1190. | 9 6 5 3 2 7 4 J 10 9 4 2 8
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K Q 10 6 5 A Q 6 3 J 9 7 2
|
| 2 S → 6 4 E → 10Pass -6 | A J 8 K 8 3 K 5 K Q 10 5 4 | |
| 1218. | K 9 8 6 3 8 6 K 10 Q 8 7 5
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 2 10 7 5 J 9 5 4 2 K 10 4
|
| 3 NT S → 8 2 × E → 6Pass +9 | A 5 K Q 4 3 A Q 6 3 J 9 2 | |
| 1346. | 3 10 8 3 K 10 9 6 5 2 5 4 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 9 8 5 2 K 6 A 4 K 9 8 7
|
| 3 S → 7 4 E → 10Pass -6 | A K 6 Q 7 5 4 Q J 3 Q J 10 | |
| Simulation 8Z37 Main | | Top Contest 1 NT with 4-4 Majors? |
| 1353. | J 6 3 K 5 4 3 A J 10 9 J 5
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 9 2 10 8 7 Q 4 3 2 Q 8 4 2
|
| 3 NT S → 9 2 × E → 4Pass +9 | A K 8 5 Q 6 K 6 5 K 10 9 7 | |
| 1358. | J 8 6 5 3 2 Q 6 Q Q 10 9 5
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 9 K 10 4 9 6 5 4 3 2 K 8 2
|
| 2 S → 8 2 × E → 8Pass -11 | A K 8 7 5 3 A K J 10 J 7 4 | |
| 1369. | J 9 K 10 8 4 J 10 9 4 K J 4
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | A 5 3 6 5 3 6 3 2 10 9 8 7
|
| 3 NT S → 8 2 × E → 5Pass +11 | K 8 6 2 Q 7 A K Q 5 Q 5 2 | |
| 1411. | 8 K Q 10 8 7 5 10 9 Q 10 5 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | A J 6 5 — J 6 5 4 3 2 J 7 4
|
| 4 S → 10 3 NT S → 8 Pass -12 | K 9 3 2 6 4 3 A K Q K 9 8 | |
| 1422. | 2 10 8 3 Q J 10 5 2 J 9 5 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | A 9 6 5 3 K 7 4 K 6 10 8 4
|
| 1 NT S → 4 4 E → 9Pass +8 | K J 8 Q 6 5 A 9 4 3 K Q 7 | |
| 1455. | 8 2 K 10 7 6 4 3 A J 9 4 2 —
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 6 5 3 Q 10 5 Q J 10 8 5 4
|
| 4 S → 10 3 NT S → 8 Pass -12 | A K 9 8 5 K Q 6 3 K 9 7 2 | |
| 1466. | 3 2 Q 3 K 10 9 6 3 K J 5 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 6 5 8 7 5 Q 4 2 10 8 7 4
|
| 3 NT S → 10 2 × E → 4Pass +5 | A K 9 8 K 10 6 4 A J 5 Q 9 | |
| 1617. | A Q 10 7 6 4 9 6 5 3 K 5 4
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K J 9 8 6 2 5 J 10 2 10 8 2
|
| 4 S → 10 3 NT S → 6 Pass -11 | 5 3 K 8 3 A K Q 4 Q J 9 7 | |
| 1630. | K J 3 2 K 5 4 3 5 3 K J 4
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 9 5 8 7 Q 9 6 4 2 9 8 5 2
|
| 3 NT S → 11 2 × E → 4Pass +4 | A 8 6 Q 10 6 A K J 10 Q 10 7 | |
| 1750. | 5 K 10 7 6 3 Q J 10 5 2 Q 10
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 6 3 2 5 9 3 K J 9 8 5 4
|
| 4 S → 10 3 NT S → 6 Pass -11 | A K 9 8 Q 8 4 A K 6 4 7 2 | |
| Simulation 8Z37 Main | | Top Contest 1 NT with 4-4 Majors? |
| 1763. | K 5 3 2 10 6 Q J 10 5 K 10 8
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 9 6 8 7 3 9 6 4 2 Q J 5 2
|
| 3 NT S → 9 2 × E → 4Pass +12 | A J 8 K Q 5 4 A K 3 9 7 4 | |
| 1790. | K 9 K 10 7 5 K 10 3 K 10 8 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 6 5 3 2 8 J 6 5 4 2 9 5
|
| 4 S → 11 3 NT S → 8 Pass -11 | A 8 Q 6 4 3 A Q 9 Q J 7 4 | |
| 1799. | K J 6 5 3 8 6 K 10 6 5 8 7
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 8 2 10 5 4 9 4 3 K Q J 5 4
|
| 3 NT S → 7 2 × E → 6Pass +12 | A 9 K Q 7 3 A Q J 2 10 9 2 | |
| 1916. | 5 10 8 7 5 5 4 3 2 Q J 10 4
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K J 6 3 2 Q 6 3 K Q 10 9 8
|
| 1 NT S → 5 4 E → 10Pass -9 | A 9 8 K 4 A J 9 6 K 7 5 2 | |
| 1922. | A K 9 5 10 8 5 4 5 4 3 7 5
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 8 3 7 3 Q 9 2 K 10 9 4 2
|
| 1 NT S → 8 2 × E → 6Pass +5 | 6 2 K Q 6 A K J 10 6 Q J 8 | |
| 1973. | J 7 6 5 4 3 Q 10 9 3 10 9 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | A K 9 5 3 2 8 J 6 5 Q 7 4
|
| 2 S → 8 4 E → 10Pass -11 | 8 6 K Q 10 A K 4 2 K J 8 5 | |
| 1974. | 8 6 3 K J 10 4 3 K Q 10 8 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 9 5 2 10 8 3 K Q 6 5 2 9 7
|
| 3 S → 10 2 × E → 6Pass +5 | A K J Q 7 6 5 4 A 9 J 5 4 | |
| 1978. | 8 Q 10 8 7 A J 5 4 2 Q J 7
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K J 9 5 5 10 9 6 3 8 5 4 2
|
| 4 S → 10 3 NT S → 8 Pass -10 | A 6 3 2 K 6 4 3 K Q K 10 9 | |
| 1979. | 6 5 K Q 8 10 6 4 3 K 10 7 4
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K 8 3 10 4 3 J 9 5 2 J 9 8
|
| 3 NT S → 8 2 × E → 6Pass +11 | A J 9 2 7 6 5 A K Q Q 5 2 | |
| 2114. | K 9 5 7 3 Q J 9 4 3 J 10 5
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | A J 10 6 5 10 6 5 Q 9 8 7 4
|
| 2 NT S → 6 2 × E → 8Pass -7 | 8 6 3 2 K Q 8 4 A K 2 K 2 | |
| Simulation 8Z37 Main | | Top Contest 1 NT with 4-4 Majors? |
| 2131. | 9 K 10 5 3 A 9 5 4 Q 9 7 4
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 5 3 2 8 6 Q 10 3 2 K 10 8 5
|
| 2 NT S → 8 2 × E → 5Pass +12 | A K J 8 6 Q 7 4 K J 6 J 2 | |
| 2148. | K 8 6 2 K 8 5 4 3 6 5 4 2 —
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 9 3 10 Q J 9 3 K 8 7 5 4
|
| 4 S → 10 3 NT S → 8 Pass -12 | A 5 Q 7 6 A K 10 Q J 10 9 2 | |
| 2166. | K J 9 8 7 6 K Q 9 J 10 8 5
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 6 3 Q 5 3 J 5 4 3 2 7 4 2
|
| 3 NT S → 10 2 × E → 4Pass +5 | A 5 2 K 10 8 4 A 10 6 K Q 9 | |
| 2253. | 9 8 2 — 10 3 2 K J 8 7 5 4 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | A K J 10 8 7 5 4 3 J 6 5 10
|
| 3 S → 9 4 E → 10Pass -11 | 6 5 3 K Q 6 A K Q 9 4 Q 9 | |
| 2260. | J 5 3 Q 10 8 4 K J 9 3 9 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 6 2 K 5 3 6 4 2 K 10 8 7 5
|
| 1 NT S → 7 2 × E → 6Pass +9 | A K 9 8 7 6 A Q 10 5 Q J 4 | |
| 2273. | K 9 6 Q 10 7 6 4 3 K 9 9 8
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 5 2 — Q J 6 5 J 10 7 5 4 2
|
| 4 S → 10 3 NT S → 7 Pass -11 | A 8 3 K 8 5 A 10 4 3 2 K Q | |
| 2284. | K 8 5 2 Q 7 6 A Q 2 7 5 4
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 9 3 10 5 10 9 6 3 J 10 8 2
|
| 3 NT S → 9 2 × E → 4Pass +11 | A 6 K 8 4 3 K J 5 4 K Q 9 | |
| 2381. | 9 6 10 5 10 6 5 4 3 2 J 10 9
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | A 3 2 Q 8 6 A J 9 Q 7 5 2
|
| 3 S → 7 4 E → 10Pass -8 | K J 8 5 K 7 4 3 K Q K 8 4 | |
| 2415. | 9 2 10 8 6 4 Q 9 6 4 2 8 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K 6 3 7 3 A J 3 K J 9 5 4
|
| 1 NT S → 4 4 E → 9Pass +6 | A J 8 5 K Q 5 K 10 5 Q 10 7 | |
| 2454. | 8 5 2 K Q 10 6 5 4 A 5 4 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 6 8 J 9 6 2 K 10 8 7 5 4
|
| 4 S → 10 3 NT S → 7 Pass -11 | A K 9 3 7 3 K Q 10 3 Q J 9 | |
| Simulation 8Z37 Main | | Top Contest 1 NT with 4-4 Majors? |
| 9981. | 9 K Q 4 3 10 5 3 Q J 8 7 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K 8 6 5 8 7 K 9 6 4 10 5 4
|
| 2 NT S → 9 2 NT S → 9 Pass = | A J 3 2 10 6 5 A Q J 2 K 9 | |
| 9982. | 8 K Q 7 5 Q J 9 6 3 2 8 4
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 9 6 5 3 10 8 4 K 10 J 7 5
|
| 3 NT S → 10 3 NT S → 10 Pass = | A K 2 6 3 A 5 4 K Q 10 9 2 | |
| 9983. | K 9 6 K Q 10 K 6 3 2 Q 7 4
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 8 5 3 8 7 6 5 10 4 J 9 8 5
|
| 3 NT S → 11 3 NT S → 11 Pass = | A J 2 4 3 A Q J 9 5 K 10 2 | |
| 9984. | K K 8 6 5 3 K J 6 5 7 5 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 9 8 5 3 7 9 3 2 K 10 9 8 4
|
| 4 S → 8 3 NT S → 7 Pass = | A J 6 2 Q 10 4 A Q 10 4 Q J | |
| 9985. | J 6 3 2 8 6 A K 6 5 2 Q 4
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 8 5 10 5 J 10 9 3 J 10 9 8 2
|
| 3 NT S → 9 3 NT S → 9 Pass = | A K 9 K Q 7 4 3 Q 4 K 7 5 | |
| 9986. | 3 2 Q 7 5 4 Q 10 5 3 K 10 7
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K J 9 5 10 6 K 9 6 4 2 5 4
|
| 1 NT S → 8 2 E → 8Pass -6 | A 8 6 K 8 3 A J Q J 9 8 2 | |
| 9987. | A 9 8 5 7 4 K 9 5 2 10 7 5
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 6 Q 6 5 3 10 6 3 K J 4 2
|
| 1 NT S → 7 2 E → 8Pass -5 | K 3 2 K 10 8 A Q J 4 Q 9 8 | |
| 9988. | K J 8 5 6 5 3 A J 6 J 10 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 9 6 3 K 10 9 5 3 2 9 8 7 4
|
| 3 NT S → 9 2 × E → 5Pass +5 | A 2 Q 8 7 4 K Q 10 4 K Q 5 | |
| 9989. | 8 6 5 3 K 5 A 6 3 J 8 4 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K 9 2 10 8 J 10 5 4 2 9 7 5
|
| 3 NT S → 8 2 × E → 6Pass +8 | A J Q 7 6 4 3 K Q 9 K Q 10 | |
| 9990. | K 8 5 K 10 5 5 4 3 2 9 7 4
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 6 2 Q 4 3 Q 10 9 Q J 10 5
|
| 1 NT S → 7 2 E → 8Pass -5 | A 9 3 8 7 6 A K J 6 K 8 2 | |
| Simulation 8Z37 Main | | Top Contest 1 NT with 4-4 Majors? |
| 9991. | 9 8 6 3 5 K J 10 6 4 J 9 5
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K 2 K 6 3 9 5 3 K 8 7 4 2
|
| 1 NT S → 6 3 E → 8Pass +4 | A J 5 Q 10 8 7 4 A Q 2 Q 10 | |
| 9992. | J 2 K Q J 5 3 2 10 9 7 4 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K 9 8 6 10 6 4 A 10 9 6 8 5
|
| 2 NT S → 5 2 NT S → 5 Pass = | A 5 3 Q 8 7 5 3 K 4 K Q J | |
| 9993. | K 10 6 5 3 K 10 6 4 Q 9 8 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 6 5 2 8 7 4 5 3 2 K 10 4
|
| 1 NT S → 8 2 E → 6Pass -1 | A 9 8 3 K Q A Q J 9 J 7 5 | |
| 9994. | 9 5 2 Q 10 6 4 J 10 3 2 9 8
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | J 8 6 3 K 8 Q 4 K Q 7 5 4
|
| 1 NT S → 6 3 E → 8Pass +4 | A K 7 5 3 A K 9 6 5 J 10 2 | |
| 9995. | K J 6 5 10 7 3 A Q 9 9 4 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 9 8 5 4 10 6 5 4 K J 10 7 5
|
| 3 NT S → 7 3 NT S → 7 Pass = | A 3 2 K Q 8 6 K J 3 2 Q 8 | |
| 9996. | J 8 5 7 5 4 3 J 10 3 K 4 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K 6 2 Q 8 6 Q 6 5 4 Q 9 7
|
| 1 NT S → 6 2 E → 7Pass +5 | A 9 3 K 10 A K 9 2 J 10 8 5 | |
| 9997. | 9 8 2 Q 9 6 5 4 3 K J 9 8
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | K J 6 10 6 5 3 A 10 2 10 7 4
|
| 1 NT S → 5 3 E → 8Pass +4 | A 5 3 K 8 7 4 K Q J Q 5 2 | |
| 9998. | A J 9 6 5 6 Q 10 J 10 8 7 4
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 8 3 5 4 3 K J 9 5 3 2 9 2
|
| 3 NT S → 9 2 × E → 5Pass -3 | K 2 K Q 10 8 7 A 6 4 K Q 5 | |
| 9999. | J 6 10 8 7 3 Q 9 6 5 Q 8 2
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 9 8 5 3 2 5 K J 3 K 9 7 5
|
| 1 NT S → 5 3 E → 9Pass -1 | A K K Q 6 4 A 10 4 2 J 10 4 | |
| 10000. | 8 6 8 7 A K 10 9 3 K Q 9 7
| |
| Q 10 7 4 A J 9 2 8 7 A 6 3 | | 5 3 2 10 6 4 3 Q 5 10 8 4 2
|
| 3 NT S → 10 3 NT S → 10 Pass = | A K J 9 K Q 5 J 6 4 2 J 5 | |
| Simulation 8Z37 Main | | Top Contest 1 NT with 4-4 Majors? |
© 2026 Richard Pavlicek