Safety Play  AQ109x - xxxx
Compare the example in the MissingCardsCalculator (mcc.exe) too.
Line 1	Finesse the Q and the play the A
Line 2	Finesse the Q and then the 10
Line 3	Finesse the 10 and then play the A
Line 4	Finesse the 10 and then the Q
Line 5	Play the A first			is recommended, because it loses only 2 tricks,
				when you can do nothing about!!
			Tricks lost by
	RHO holds		line1	line2	line 3	line 4	line 5
			Q, A	Q, 10	10; A	10; Q	A
1		4,78%	2	2	2	2	2
2	K	6,22%	1	1	1	1	1
3	J	6,22%	1	1	1	1	1
4	8	6,22%	2	2	2	2	2
5	7	6,22%	2	2	2	2	2
6	KJ	6,78%	0	0	0	0	0
7	K8	6,78%	0	0	1	1	1
8	K7	6,78%	0	0	1	1	1
9	J8	6,78%	1	1	1	1	1
10	J7	6,78%	1	1	1	1	1
11	87	6,78%	1	2	1	2	1
12	KJ8	6,22%	1	1	0	0	1
13	KJ7	6,22%	1	1	0	0	1
14	K87	6,22%	0	0	2	1	1
15	J87	6,22%	2	1	1	1	0
16	KJ87	4,78%	1	1	0	0	1
		100%
The line loses
2 tricks			23,4%	24,0%	23,4%	24,0%	17,2%
1 trick			50,0%	49,4%	52,6%	52,0%	69,8%
0 tricks			26,6%	26,6%	24,0%	24,0%	13,0%
			100%	100%	100%	100%	100%