Simulation 8Z26 Main

Lead vs. One Notrump

by Richard Pavlicek

Which card would you lead?

	Any vul		West	North	East	South
10 8 6						1 NT
J 7 4 3			Pass	Pass	Pass
A 10 5 4
A 4
	1 NT

Leads compared: 6, 3, 4, A.

For a simulation I created 10,000 random deals with the West hand fixed and the other hands constrained to fit the auction. South: 15-17 HCP; balanced (5-card major allowed if doubleton is J-x or better). North: 1-7 HCP; no 5+ major; no 6+ minor; 2+ clubs (else Stayman). East: 7-13 HCP; no 6+ major; no 7+ minor; balanced or less than 10 revalued points.

Results are shown below. Trick Average shows the average number of tricks won by the defense. Set Percent shows how often the contract is defeated, and Hold Percent how often it is made without an overtrick. The second table compares each lead with every other lead, with the better choice leftmost. Net W-L (matchpoints or board-a-match verdict) counts +1 for a win and -1 for a loss. Net Score and Net IMPs are calculated twice, first with declarer nonvul (green) then with declarer vul (red). Plus values show the net gain over 10,000 deals.

A clear win for the 3, beating all other leads in all categories. Note the narrow win of the 6 over the 4, though losing one category.

Results for 10,000 Deals

Lead	Trick Average	Set Percent	Hold Percent
6	5.7605	25.41	31.30
3	5.8635	29.13	30.14
4	5.7255	26.09	28.88
A	5.6593	22.70	30.97

Comparison	Net W-L	NV Net Score	NV Net IMPs	Vul Net Score	Vul Net IMPs
3 vs. 6	+768	+75,860	+2214	+104,560	+2790
3 vs. 4	+1140	+77,860	+2385	+100,610	+2844
3 vs. A	+1697	+139,550	+4188	+190,600	+5211
6 vs. 4	+437	+2000	+190	-3950	+73
6 vs. A	+909	+63,690	+1968	+86,040	+2414
4 vs. A	+457	+61,690	+1779	+89,990	+2348

Actual Deals

Below are 100 of the 10,000 deals, including the first 20, last 20, and 60 in-between with the greatest IMP gains (15 for each lead). Numbers after each lead show the tricks won by the defense with double-dummy play by both sides.

1.	K J 9 5 2 K 9 8 7 2 8 7 5
10 8 6 J 7 4 3 A 10 5 4 A 4		A Q 5 4 3 10 8 J 3 10 6 3 2
6 → 6 3 → 6 4 → 6 A → 6	9 7 2 A K Q 6 Q 6 K Q J 9

2.	Q J 9 K 10 7 3 2 9 8 7 5 2
10 8 6 J 7 4 3 A 10 5 4 A 4		7 4 2 Q 9 6 5 K Q Q J 10 3
6 → 7 3 → 7 4 → 7 A → 6	A K 5 3 A 8 2 J 9 8 6 K 6

3.	Q 9 3 Q 6 J 9 7 6 2 Q 7 3
10 8 6 J 7 4 3 A 10 5 4 A 4		K 4 2 K 9 5 K 3 10 9 8 6 2
6 → 4 3 → 5 4 → 5 A → 5	A J 7 5 A 10 8 2 Q 8 K J 5

4.	A 9 7 3 8 Q 7 2 J 9 7 5 3
10 8 6 J 7 4 3 A 10 5 4 A 4		K J 4 2 Q 9 6 J 9 3 8 6 2
6 → 4 3 → 4 4 → 4 A → 4	Q 5 A K 10 5 2 K 8 6 K Q 10

5.	K 9 5 3 Q 6 Q 7 3 6 5 3 2
10 8 6 J 7 4 3 A 10 5 4 A 4		Q 2 K 10 9 5 9 8 6 2 K J 7
6 → 6 3 → 6 4 → 6 A → 6	A J 7 4 A 8 2 K J Q 10 9 8

6.	9 5 K 5 2 9 8 7 3 J 10 8 6
10 8 6 J 7 4 3 A 10 5 4 A 4		Q J 4 3 10 6 K Q 6 Q 7 5 2
6 → 7 3 → 6 4 → 7 A → 6	A K 7 2 A Q 9 8 J 2 K 9 3

7.	Q 9 7 3 9 5 2 8 6 Q 10 9 8
10 8 6 J 7 4 3 A 10 5 4 A 4		J 5 4 2 K Q 6 K Q 7 6 5 2
6 → 6 3 → 8 4 → 8 A → 6	A K A 10 8 J 9 3 2 K J 7 3

8.	Q 7 5 8 6 5 J 8 3 2 8 7 3
10 8 6 J 7 4 3 A 10 5 4 A 4		A 9 4 Q 10 9 K 9 7 Q 9 5 2
6 → 7 3 → 7 4 → 6 A → 6	K J 3 2 A K 2 Q 6 K J 10 6

9.	A 7 5 8 5 2 9 7 6 3 7 5 2
10 8 6 J 7 4 3 A 10 5 4 A 4		K Q 3 2 K 10 6 Q J 2 10 9 3
6 → 7 3 → 6 4 → 5 A → 6	J 9 4 A Q 9 K 8 K Q J 8 6

10.	A 7 2 10 9 8 6 J 9 8 9 3 2
10 8 6 J 7 4 3 A 10 5 4 A 4		J 9 5 Q 5 2 K 7 Q J 8 7 5
6 → 6 3 → 6 4 → 5 A → 6	K Q 4 3 A K Q 6 3 2 K 10 6

Simulation 8Z26 Main

Top Lead vs. One Notrump

11.	K 9 5 3 K 10 8 7 10 8 7 6 3
10 8 6 J 7 4 3 A 10 5 4 A 4		A Q J 7 9 6 2 Q 8 6 J 9 5
6 → 8 3 → 7 4 → 8 A → 6	4 2 A Q 5 K J 9 3 2 K Q 2

12.	9 7 K 9 6 9 8 7 K J 8 6 3
10 8 6 J 7 4 3 A 10 5 4 A 4		J 5 4 3 2 Q 8 K Q J 3 10 2
6 → 5 3 → 5 4 → 5 A → 5	A K Q A 10 5 2 6 2 Q 9 7 5

13.	K 7 4 3 10 5 J 3 2 9 5 3 2
10 8 6 J 7 4 3 A 10 5 4 A 4		A 9 2 A Q 6 9 6 J 10 8 7 6
6 → 7 3 → 8 4 → 7 A → 8	Q J 5 K 9 8 2 K Q 8 7 K Q

14.	K 9 4 2 8 6 K J 9 7 10 7 3
10 8 6 J 7 4 3 A 10 5 4 A 4		Q 7 3 K 10 9 5 6 3 Q 8 6 5
6 → 2 3 → 4 4 → 2 A → 2	A J 5 A Q 2 Q 8 2 K J 9 2

15.	4 3 K 9 J 9 7 6 Q J 8 7 6
10 8 6 J 7 4 3 A 10 5 4 A 4		K 9 7 5 2 10 6 5 2 Q 8 K 3
6 → 4 3 → 4 4 → 4 A → 4	A Q J A Q 8 K 3 2 10 9 5 2

16.	9 5 10 9 5 K Q 8 3 9 8 7 5
10 8 6 J 7 4 3 A 10 5 4 A 4		K J 7 3 2 Q 2 J 9 2 Q J 6
6 → 5 3 → 5 4 → 5 A → 5	A Q 4 A K 8 6 7 6 K 10 3 2

17.	K 9 7 4 8 5 2 K 9 7 6 9 2
10 8 6 J 7 4 3 A 10 5 4 A 4		J 5 3 A 9 6 Q 3 2 K 8 6 3
6 → 5 3 → 6 4 → 6 A → 5	A Q 2 K Q 10 J 8 Q J 10 7 5

18.	J 5 3 5 2 K J 8 6 2 6 3 2
10 8 6 J 7 4 3 A 10 5 4 A 4		9 7 4 A 10 8 Q 7 K Q 10 9 7
6 → 7 3 → 7 4 → 8 A → 7	A K Q 2 K Q 9 6 9 3 J 8 5

19.	J 4 3 9 8 J 9 7 3 Q 10 8 7
10 8 6 J 7 4 3 A 10 5 4 A 4		A Q 7 Q 10 5 K 8 2 J 6 5 2
6 → 7 3 → 7 4 → 7 A → 7	K 9 5 2 A K 6 2 Q 6 K 9 3

20.	J 9 4 2 2 K 7 2 9 8 5 3 2
10 8 6 J 7 4 3 A 10 5 4 A 4		A K 5 K 10 9 5 9 8 Q 10 7 6
6 → 6 3 → 7 4 → 7 A → 7	Q 7 3 A Q 8 6 Q J 6 3 K J

Simulation 8Z26 Main

Top Lead vs. One Notrump

97.	4 3 2 2 8 7 6 3 K 10 9 7 2
10 8 6 J 7 4 3 A 10 5 4 A 4		A Q 9 5 K 9 6 K 9 2 J 6 3
6 → 7 3 → 7 4 → 8 A → 6	K J 7 A Q 10 8 5 Q J Q 8 5

254.	K 7 4 2 9 6 5 2 8 6 J 9 5
10 8 6 J 7 4 3 A 10 5 4 A 4		Q 5 3 A Q 10 Q J 9 7 10 8 3
6 → 6 3 → 8 4 → 5 A → 6	A J 9 K 8 K 3 2 K Q 7 6 2

263.	9 7 3 2 A 10 6 2 7 Q 10 6 5
10 8 6 J 7 4 3 A 10 5 4 A 4		Q 8 5 Q J 9 6 3 2 K 8 7 3
6 → 4 3 → 4 4 → 3 A → 8	A K J 5 4 K Q 9 K 8 J 9 2

382.	A 5 4 2 K 10 5 2 8 6 9 7 2
10 8 6 J 7 4 3 A 10 5 4 A 4		J 3 9 6 Q J 9 7 3 K Q 10 6
6 → 5 3 → 5 4 → 4 A → 8	K Q 9 7 A Q 8 K 2 J 8 5 3

732.	J 5 3 8 8 7 6 3 J 9 7 6 2
10 8 6 J 7 4 3 A 10 5 4 A 4		Q 9 2 A Q 6 5 2 Q J 9 Q 3
6 → 9 3 → 10 4 → 8 A → 6	A K 7 4 K 10 9 K 2 K 10 8 5

979.	K 9 4 3 9 6 9 7 J 8 7 6 2
10 8 6 J 7 4 3 A 10 5 4 A 4		Q 5 2 K Q 10 8 5 Q J 8 5 3
6 → 4 3 → 9 4 → 4 A → 4	A J 7 A 2 K 6 3 2 K Q 10 9

1022.	7 3 2 A 9 5 2 Q 6 7 6 5 3
10 8 6 J 7 4 3 A 10 5 4 A 4		Q 9 5 8 6 K J 9 8 7 K J 8
6 → 6 3 → 6 4 → 8 A → 7	A K J 4 K Q 10 3 2 Q 10 9 2

1200.	Q J 9 A 10 9 6 9 8 3 10 8 3
10 8 6 J 7 4 3 A 10 5 4 A 4		7 2 5 2 Q J 2 K J 9 7 5 2
6 → 4 3 → 4 4 → 3 A → 10	A K 5 4 3 K Q 8 K 7 6 Q 6

1362.	A Q 9 5 5 2 9 8 7 3 5 3 2
10 8 6 J 7 4 3 A 10 5 4 A 4		J 7 3 K Q 10 9 8 Q J 9 8 7
6 → 4 3 → 8 4 → 3 A → 4	K 4 2 A 6 K 6 2 K Q J 10 6

1512.	9 7 3 2 A 2 9 6 3 10 9 3 2
10 8 6 J 7 4 3 A 10 5 4 A 4		Q 5 4 K 9 8 6 5 Q J 2 Q J
6 → 8 3 → 9 4 → 8 A → 4	A K J Q 10 K 8 7 K 8 7 6 5

Simulation 8Z26 Main

Top Lead vs. One Notrump

1743.	K Q 9 5 10 6 7 3 8 7 5 3 2
10 8 6 J 7 4 3 A 10 5 4 A 4		A J 7 4 8 5 2 Q J 9 6 J 6
6 → 8 3 → 6 4 → 5 A → 6	3 2 A K Q 9 K 8 2 K Q 10 9

1758.	J 9 5 3 8 6 2 J 2 K J 3 2
10 8 6 J 7 4 3 A 10 5 4 A 4		7 2 A K 10 5 Q 8 6 9 8 7 5
6 → 6 3 → 7 4 → 8 A → 6	A K Q 4 Q 9 K 9 7 3 Q 10 6

2077.	Q J 4 3 Q 8 6 9 6 Q 10 7 5
10 8 6 J 7 4 3 A 10 5 4 A 4		9 7 5 A 10 5 2 K Q 8 7 3 2
6 → 6 3 → 6 4 → 8 A → 6	A K 2 K 9 J 3 2 K J 9 8 6

2344.	J 9 K 10 6 2 8 3 2 10 6 5 2
10 8 6 J 7 4 3 A 10 5 4 A 4		A 5 2 Q 9 Q J 6 K 9 8 7 3
6 → 7 3 → 7 4 → 6 A → 9	K Q 7 4 3 A 8 5 K 9 7 Q J

2400.	A 7 2 10 8 5 7 3 Q 8 7 3 2
10 8 6 J 7 4 3 A 10 5 4 A 4		9 5 K 9 2 Q J 9 8 6 K J 5
6 → 6 3 → 6 4 → 5 A → 8	K Q J 4 3 A Q 6 K 2 10 9 6

2475.	J 9 5 10 8 7 6 3 Q J 9 6 3
10 8 6 J 7 4 3 A 10 5 4 A 4		K 4 K Q 9 6 2 Q J 9 7 5 2
6 → 3 3 → 9 4 → 4 A → 5	A Q 7 3 2 A 5 K 8 2 K 10 8

2547.	K 9 7 4 Q 10 8 6 9 3 2 Q 7
10 8 6 J 7 4 3 A 10 5 4 A 4		Q 5 2 Q J 8 7 K J 10 8 6 2
6 → 4 3 → 4 4 → 3 A → 10	A J 5 3 2 A K 9 K 6 9 5 3

2911.	9 7 5 3 10 5 8 7 K 10 8 6 2
10 8 6 J 7 4 3 A 10 5 4 A 4		Q J 2 A Q 9 8 Q J 9 6 J 9
6 → 7 3 → 8 4 → 5 A → 6	A K 4 K 6 2 K 3 2 Q 7 5 3

3470.	Q J 7 8 5 8 3 2 9 8 7 6 3
10 8 6 J 7 4 3 A 10 5 4 A 4		K 9 5 2 A Q 10 9 Q J 9 J 5
6 → 7 3 → 8 4 → 5 A → 6	A 4 3 K 6 2 K 7 6 K Q 10 2

3590.	9 7 3 2 K 9 5 8 3 7 6 5 2
10 8 6 J 7 4 3 A 10 5 4 A 4		K Q Q 8 6 2 K Q 7 J 9 8 3
6 → 6 3 → 6 4 → 8 A → 6	A J 5 4 A 10 J 9 6 2 K Q 10

Simulation 8Z26 Main

Top Lead vs. One Notrump

3610.	A 7 5 9 8 6 5 J 10 8 7 5 3
10 8 6 J 7 4 3 A 10 5 4 A 4		Q J 4 Q 2 K Q 7 6 3 J 9 2
6 → 7 3 → 7 4 → 8 A → 6	K 9 3 2 A K 10 9 8 2 K Q 6

3656.	K 5 3 10 9 8 7 2 10 6 5 3 2
10 8 6 J 7 4 3 A 10 5 4 A 4		J 9 7 K Q 8 5 Q J 9 6 Q 7
6 → 4 3 → 8 4 → 4 A → 4	A Q 4 2 A 6 2 K 3 K J 9 8

3777.	5 3 K Q 9 5 8 6 J 10 8 7 6
10 8 6 J 7 4 3 A 10 5 4 A 4		A Q J 7 4 8 6 2 Q J 3 9 5
6 → 8 3 → 5 4 → 5 A → 5	K 9 2 A 10 K 9 7 2 K Q 3 2

3936.	J 5 3 A 10 8 6 9 7 3 Q 5 2
10 8 6 J 7 4 3 A 10 5 4 A 4		9 7 4 Q 5 Q J 6 K J 10 9 8
6 → 7 3 → 5 4 → 6 A → 9	A K Q 2 K 9 2 K 8 2 7 6 3

4022.	J 7 2 8 6 5 8 6 K 10 9 6 3
10 8 6 J 7 4 3 A 10 5 4 A 4		K 9 K Q 9 Q J 9 3 2 J 8 2
6 → 3 3 → 9 4 → 5 A → 5	A Q 5 4 3 A 10 2 K 7 Q 7 5

4040.	9 2 K 8 8 7 3 2 J 9 8 5 3
10 8 6 J 7 4 3 A 10 5 4 A 4		K Q J 5 4 10 9 6 Q J 6 Q 6
6 → 8 3 → 5 4 → 4 A → 5	A 7 3 A Q 5 2 K 9 K 10 7 2

4442.	Q 9 5 4 Q 9 8 6 Q 9 7 5 2
10 8 6 J 7 4 3 A 10 5 4 A 4		J 3 A 8 6 5 2 Q J 9 3 10 6
6 → 6 3 → 8 4 → 5 A → 6	A K 7 2 K 10 K 7 2 K J 8 3

4745.	A Q 9 2 10 9 5 9 10 7 6 5 3
10 8 6 J 7 4 3 A 10 5 4 A 4		7 4 3 6 Q J 8 7 6 3 K Q 9
6 → 6 3 → 4 4 → 5 A → 9	K J 5 A K Q 8 2 K 2 J 8 2

4997.	J 7 K 10 8 7 6 3 J 10 9 7 2
10 8 6 J 7 4 3 A 10 5 4 A 4		A Q 9 3 9 2 Q J 9 8 8 5 3
6 → 8 3 → 6 4 → 5 A → 6	K 5 4 2 A Q 6 5 K 2 K Q 6

5066.	9 7 5 K 8 6 7 3 2 J 8 7 2
10 8 6 J 7 4 3 A 10 5 4 A 4		A Q J 4 2 10 9 2 Q 9 Q 5 3
6 → 8 3 → 7 4 → 7 A → 6	K 3 A Q 5 K J 8 6 K 10 9 6

Simulation 8Z26 Main

Top Lead vs. One Notrump

5128.	J 5 4 3 A 6 2 9 7 2 9 8 6
10 8 6 J 7 4 3 A 10 5 4 A 4		A 9 7 9 8 Q J 8 Q J 10 7 2
6 → 7 3 → 7 4 → 6 A → 9	K Q 2 K Q 10 5 K 6 3 K 5 3

5276.	A 5 4 2 Q 10 6 5 2 7 6 5 2
10 8 6 J 7 4 3 A 10 5 4 A 4		9 7 3 9 8 K Q J 6 K J 10 9
6 → 5 3 → 5 4 → 8 A → 6	K Q J A K 2 9 8 7 3 Q 8 3

5384.	J 9 4 K 8 5 9 7 3 J 9 8 7
10 8 6 J 7 4 3 A 10 5 4 A 4		K Q 7 5 Q Q J 8 2 10 6 3 2
6 → 8 3 → 6 4 → 5 A → 6	A 3 2 A 10 9 6 2 K 6 K Q 5

5470.	Q 9 4 A 10 5 9 3 2 J 9 7 3
10 8 6 J 7 4 3 A 10 5 4 A 4		J 5 3 2 6 2 Q J 7 K Q 10 6
6 → 6 3 → 6 4 → 5 A → 8	A K 7 K Q 9 8 K 8 6 8 5 2

5529.	5 4 3 10 9 K 6 3 10 7 6 3 2
10 8 6 J 7 4 3 A 10 5 4 A 4		A J K Q 5 2 J 8 7 2 Q 9 8
6 → 6 3 → 9 4 → 7 A → 8	K Q 9 7 2 A 8 6 Q 9 K J 5

5662.	K 4 10 9 6 6 3 2 K 10 8 3 2
10 8 6 J 7 4 3 A 10 5 4 A 4		J 9 7 2 K Q 8 Q J 9 J 9 5
6 → 7 3 → 8 4 → 4 A → 5	A Q 5 3 A 5 2 K 8 7 Q 7 6

5988.	7 5 4 2 A K 8 5 2 9 7 6 3
10 8 6 J 7 4 3 A 10 5 4 A 4		9 10 2 K J 8 7 6 3 Q J 10 2
6 → 4 3 → 4 4 → 8 A → 7	A K Q J 3 Q 9 6 Q 9 K 8 5

6262.	K 9 9 8 5 2 K 9 7 6 7 6 3
10 8 6 J 7 4 3 A 10 5 4 A 4		A 3 2 10 6 Q 3 Q J 10 8 5 2
6 → 5 3 → 5 4 → 8 A → 7	Q J 7 5 4 A K Q J 8 2 K 9

6475.	J 9 3 K 10 8 2 9 3 K 10 9 5
10 8 6 J 7 4 3 A 10 5 4 A 4		A Q 7 5 9 5 Q J 8 7 8 7 2
6 → 8 3 → 6 4 → 5 A → 6	K 4 2 A Q 6 K 6 2 Q J 6 3

6743.	9 7 5 A 9 2 8 7 3 K 5 3 2
10 8 6 J 7 4 3 A 10 5 4 A 4		A 3 10 8 5 Q J 2 Q 10 9 8 7
6 → 6 3 → 6 4 → 5 A → 9	K Q J 4 2 K Q 6 K 9 6 J 6

Simulation 8Z26 Main

Top Lead vs. One Notrump

6811.	K J 9 6 2 8 7 3 2 10 8 6 2
10 8 6 J 7 4 3 A 10 5 4 A 4		Q 9 5 4 2 Q 10 5 Q J 9 Q J
6 → 8 3 → 7 4 → 5 A → 5	A 7 3 A K 8 K 6 K 9 7 5 3

7034.	K Q 4 2 Q 10 8 5 7 8 6 5 2
10 8 6 J 7 4 3 A 10 5 4 A 4		J 9 6 2 Q J 6 2 K 10 9 7 3
6 → 5 3 → 5 4 → 4 A → 8	A 7 5 3 A K 9 K 9 8 3 Q J

7327.	J 7 3 Q 8 5 2 7 3 K J 8 6
10 8 6 J 7 4 3 A 10 5 4 A 4		K Q 5 4 2 6 Q J 9 8 10 9 5
6 → 8 3 → 5 4 → 4 A → 5	A 9 A K 10 9 K 6 2 Q 7 3 2

7717.	9 5 10 9 6 5 K 8 7 3 7 5 2
10 8 6 J 7 4 3 A 10 5 4 A 4		K Q J 7 3 Q 8 Q 9 2 J 10 3
6 → 8 3 → 7 4 → 7 A → 5	A 4 2 A K 2 J 6 K Q 9 8 6

7786.	Q J 9 5 10 8 5 9 J 10 8 7 6
10 8 6 J 7 4 3 A 10 5 4 A 4		K 4 A 6 2 Q 8 7 6 3 K 3 2
6 → 6 3 → 7 4 → 8 A → 7	A 7 3 2 K Q 9 K J 2 Q 9 5

7813.	J 7 K 6 2 9 7 6 3 2 8 7 6
10 8 6 J 7 4 3 A 10 5 4 A 4		K 9 5 4 3 Q 9 8 K Q J 10 2
6 → 8 3 → 7 4 → 7 A → 5	A Q 2 A 10 5 J 8 K Q 9 5 3

7845.	9 4 3 K Q 9 J 3 8 7 6 3 2
10 8 6 J 7 4 3 A 10 5 4 A 4		A J 7 5 2 10 8 2 Q 2 J 10 9
6 → 8 3 → 7 4 → 7 A → 5	K Q A 6 5 K 9 8 7 6 K Q 5

7869.	A K 9 5 9 8 8 7 6 3 6 5 3
10 8 6 J 7 4 3 A 10 5 4 A 4		4 2 A 10 2 J 9 2 K J 10 8 7
6 → 6 3 → 6 4 → 8 A → 6	Q J 7 3 K Q 6 5 K Q Q 9 2

7972.	7 4 3 K Q 6 2 6 J 8 6 3 2
10 8 6 J 7 4 3 A 10 5 4 A 4		9 5 2 10 9 Q J 9 8 3 K Q 9
6 → 6 3 → 6 4 → 5 A → 8	A K Q J A 8 5 K 7 2 10 7 5

7992.	7 4 2 Q 10 9 6 J 3 J 8 6 3
10 8 6 J 7 4 3 A 10 5 4 A 4		Q 9 3 K 5 K 9 7 6 2 K 10 5
6 → 7 3 → 5 4 → 8 A → 7	A K J 5 A 8 2 Q 8 Q 9 7 2

Simulation 8Z26 Main

Top Lead vs. One Notrump

8450.	7 5 2 K 9 5 6 3 9 7 6 5 3
10 8 6 J 7 4 3 A 10 5 4 A 4		A Q J 9 3 10 8 2 Q J 8 Q 10
6 → 9 3 → 5 4 → 5 A → 5	K 4 A Q 6 K 9 7 2 K J 8 2

8600.	A 9 5 2 9 6 2 9 3 9 8 3 2
10 8 6 J 7 4 3 A 10 5 4 A 4		Q 7 3 A 8 J 8 7 6 2 K 10 7
6 → 6 3 → 7 4 → 8 A → 7	K J 4 K Q 10 5 K Q Q J 6 5

8793.	A 9 7 4 Q 9 2 J 10 9 7 6 5
10 8 6 J 7 4 3 A 10 5 4 A 4		K 3 K 10 8 Q 9 7 6 3 2 8 3
6 → 8 3 → 10 4 → 6 A → 7	Q J 5 2 A 6 5 K 8 K Q J 2

8953.	9 3 A 9 5 2 7 6 3 10 6 3 2
10 8 6 J 7 4 3 A 10 5 4 A 4		K Q J 5 4 10 8 6 K J 2 9 8
6 → 9 3 → 5 4 → 7 A → 5	A 7 2 K Q Q 9 8 K Q J 7 5

9127.	A J 9 4 5 2 7 3 2 8 7 6 5
10 8 6 J 7 4 3 A 10 5 4 A 4		7 5 2 Q 9 Q J 8 K Q 9 3 2
6 → 7 3 → 7 4 → 6 A → 9	K Q 3 A K 10 8 6 K 9 6 J 10

9228.	K J 7 4 Q 10 2 J 9 7 6 5 3
10 8 6 J 7 4 3 A 10 5 4 A 4		9 2 9 8 K Q 8 3 Q J 9 8 2
6 → 5 3 → 5 4 → 9 A → 5	A Q 5 3 A K 6 5 7 6 2 K 10

9265.	7 5 3 2 Q 10 6 9 7 2 K J 8
10 8 6 J 7 4 3 A 10 5 4 A 4		J 4 A 8 2 Q J 3 Q 7 5 3 2
6 → 6 3 → 6 4 → 5 A → 8	A K Q 9 K 9 5 K 8 6 10 9 6

9367.	Q J 9 4 9 8 9 8 3 K J 7 3
10 8 6 J 7 4 3 A 10 5 4 A 4		5 2 A Q 10 Q J 7 2 10 9 6 2
6 → 6 3 → 8 4 → 5 A → 6	A K 7 3 K 6 5 2 K 6 Q 8 5

9665.	A 3 2 8 5 9 7 3 8 7 6 5 3
10 8 6 J 7 4 3 A 10 5 4 A 4		K 9 7 5 A Q 2 Q J 6 10 9 2
6 → 9 3 → 8 4 → 6 A → 7	Q J 4 K 10 9 6 K 8 2 K Q J

9766.	9 7 10 K 8 7 6 3 10 9 7 5 3
10 8 6 J 7 4 3 A 10 5 4 A 4		A Q 4 3 2 9 6 2 Q 9 K Q 2
6 → 7 3 → 6 4 → 8 A → 7	K J 5 A K Q 8 5 J 2 J 8 6

Simulation 8Z26 Main

Top Lead vs. One Notrump

9981.	Q J K 9 8 5 9 7 3 2 J 3 2
10 8 6 J 7 4 3 A 10 5 4 A 4		9 4 3 2 A Q Q 8 6 9 8 6 5
6 → 5 3 → 5 4 → 5 A → 5	A K 7 5 10 6 2 K J K Q 10 7

9982.	9 7 2 A 9 5 K 9 7 9 8 7 3
10 8 6 J 7 4 3 A 10 5 4 A 4		Q J 5 4 Q 6 2 J 2 Q 10 6 2
6 → 5 3 → 4 4 → 5 A → 5	A K 3 K 10 8 Q 8 6 3 K J 5

9983.	9 3 2 A 9 5 8 7 2 K 7 6 5
10 8 6 J 7 4 3 A 10 5 4 A 4		J 5 4 Q 10 6 Q J 9 J 10 8 2
6 → 5 3 → 5 4 → 4 A → 5	A K Q 7 K 8 2 K 6 3 Q 9 3

9984.	Q J 3 Q 6 J 9 7 6 3 J 9 6
10 8 6 J 7 4 3 A 10 5 4 A 4		7 5 4 2 9 8 5 2 Q K Q 7 3
6 → 4 3 → 4 4 → 4 A → 4	A K 9 A K 10 K 8 2 10 8 5 2

9985.	A 4 3 2 10 2 J 9 8 7 2 Q 3
10 8 6 J 7 4 3 A 10 5 4 A 4		Q 9 7 5 K 9 8 Q J 10 8 7 2
6 → 3 3 → 4 4 → 3 A → 3	K J A Q 6 5 K 6 3 K 9 6 5

9986.	7 4 Q 6 7 6 3 2 K Q 8 7 2
10 8 6 J 7 4 3 A 10 5 4 A 4		A 9 5 3 2 K 10 9 Q 10 9 6 5
6 → 7 3 → 7 4 → 7 A → 7	K Q J A 8 5 2 K J 9 8 J 3

9987.	J 7 5 3 — K Q J 9 6 10 8 3 2
10 8 6 J 7 4 3 A 10 5 4 A 4		Q 4 Q 9 8 6 2 7 Q J 7 6 5
6 → 3 3 → 2 4 → 3 A → 2	A K 9 2 A K 10 5 8 3 2 K 9

9988.	7 4 K 5 2 Q J 2 10 9 7 5 3
10 8 6 J 7 4 3 A 10 5 4 A 4		K 5 2 Q 9 8 6 K 6 3 Q 8 6
6 → 4 3 → 6 4 → 5 A → 5	A Q J 9 3 A 10 9 8 7 K J 2

9989.	9 4 2 8 5 Q 9 8 7 3 K 8 6
10 8 6 J 7 4 3 A 10 5 4 A 4		Q J 7 K Q 6 2 J 2 J 9 7 3
6 → 6 3 → 6 4 → 6 A → 6	A K 5 3 A 10 9 K 6 Q 10 5 2

9990.	J 7 4 2 K 2 6 2 Q 10 9 7 6
10 8 6 J 7 4 3 A 10 5 4 A 4		A 9 3 9 6 5 Q J 9 3 J 3 2
6 → 6 3 → 6 4 → 5 A → 6	K Q 5 A Q 10 8 K 8 7 K 8 5

Simulation 8Z26 Main

Top Lead vs. One Notrump

9991.	J 7 3 A 9 6 5 9 7 8 7 5 2
10 8 6 J 7 4 3 A 10 5 4 A 4		A 5 4 2 10 8 2 Q 6 3 2 K J
6 → 6 3 → 6 4 → 6 A → 6	K Q 9 K Q K J 8 Q 10 9 6 3

9992.	7 5 4 K 2 K J 8 6 3 10 8 6
10 8 6 J 7 4 3 A 10 5 4 A 4		J 9 2 A 9 8 6 7 2 K J 7 3
6 → 6 3 → 5 4 → 6 A → 5	A K Q 3 Q 10 5 Q 9 Q 9 5 2

9993.	9 4 10 K J 9 8 6 10 9 8 7 2
10 8 6 J 7 4 3 A 10 5 4 A 4		J 7 5 3 A Q 9 8 5 Q J 5 3
6 → 5 3 → 6 4 → 5 A → 6	A K Q 2 K 6 2 7 3 2 K Q 6

9994.	9 5 3 Q 5 J 8 2 K 9 7 5 2
10 8 6 J 7 4 3 A 10 5 4 A 4		K J 7 2 A 8 6 Q 9 3 10 8 3
6 → 6 3 → 5 4 → 5 A → 5	A Q 4 K 10 9 2 K 7 6 Q J 6

9995.	9 4 6 2 K J 9 7 10 9 7 5 3
10 8 6 J 7 4 3 A 10 5 4 A 4		A K Q 5 3 Q 8 5 8 3 8 6 2
6 → 8 3 → 8 4 → 7 A → 7	J 7 2 A K 10 9 Q 6 2 K Q J

9996.	9 3 2 A 9 5 8 7 3 J 10 8 5
10 8 6 J 7 4 3 A 10 5 4 A 4		Q J 5 4 Q 10 Q J 9 K 7 6 3
6 → 8 3 → 7 4 → 6 A → 7	A K 7 K 8 6 2 K 6 2 Q 9 2

9997.	3 2 6 2 Q J 7 6 2 K 8 7 5
10 8 6 J 7 4 3 A 10 5 4 A 4		Q 9 7 5 4 A K 5 8 3 J 10 6
6 → 5 3 → 5 4 → 5 A → 5	A K J Q 10 9 8 K 9 Q 9 3 2

9998.	7 5 4 K 10 9 8 J 8 6 K 6 5
10 8 6 J 7 4 3 A 10 5 4 A 4		K Q 3 Q 5 9 3 2 Q 10 9 8 3
6 → 4 3 → 3 4 → 5 A → 6	A J 9 2 A 6 2 K Q 7 J 7 2

9999.	Q 9 4 Q 10 5 2 9 10 8 7 3 2
10 8 6 J 7 4 3 A 10 5 4 A 4		K 7 5 9 6 Q 7 6 2 K Q J 6
6 → 5 3 → 6 4 → 6 A → 6	A J 3 2 A K 8 K J 8 3 9 5

10000.	K J 9 9 2 9 6 3 J 9 8 7 5
10 8 6 J 7 4 3 A 10 5 4 A 4		5 3 2 Q 10 8 K J 8 K Q 3 2
6 → 7 3 → 7 4 → 7 A → 7	A Q 7 4 A K 6 5 Q 7 2 10 6

Simulation 8Z26 Main

Top Lead vs. One Notrump

© 2022 Richard Pavlicek