Well, the problem was - we need more stages written -with the best of intentions, let's get the new guy do it - what could possibly go wrong?
So, putting my mind to it I used a mathematical way to solve the problem. First decide how many targets. In my example I used 3. Then decide how many shots in a string I decided on 5. So, I sat down and listed all the possible permutations the numbers 1,2,3 could make (number of targets). Then all the unique 2 number permutations you can make with 1,2,3. You also could use an online number generator. Then I put them in a square and match them up giving me all the possible 5 shot combinations you could make with three targets. The sides are the combinations you can make of 2 and 3 numbers. The groups of 5 are the possible strings some work others don't. You can repeat the 5 or pick a new combination to get to 10 rounds. To make it work, match the top first number with the first number on the side then the second number on the top with the second number on the side and finally the last number on the side. It is a bit like a Punnet Square from high school Biology,
11
12
13
21
22
23
31
32
33
111
11111
11211
11311
2111
21211
21311
31111
31211
31311
112
11112
11212
11312
21112
21212
21312
21112
31212
31312
113
11113
11213
11313
21113
21213
21313
31113
31213
31313
121
11121
11221
11321
21123
21221
21321
31121
31221
31321
122
11122
11222
11322
21122
21222
21322
31122
31222
31322
123
11123
11223
11323
21123
21223
21323
31123
31223
31323
131
11131
11231
11331
21231
12231
21331
31131
31231
31331
132
11132
11232
11332
21132
21332
21332
31132
31232
31332
133
11133
11233
11333
21133
21233
213333
31133
31233
31333
211
12111
12211
12311
22111
22211
22311
32111
32211
32311
212
12112
12212
12312
22112
22212
22312
32112
32212
32312
213
12113
12213
12313
22113
22213
22313
32113
32213
32313
221
12121
12221
12321
22121
22221
22321
32121
32221
32321
222
12122
12222
12322
22122
22222
22322
32122
32222
32322
223
12123
12223
12323
22123
22223
22323
32123
32223
32323
231
12131
12231
12331
22131
22231
22331
32131
32231
32331
232
12132
12232
12332
22132
22232
22332
32132
32232
32332
233
12133
12233
12333
22133
22233
22333
32133
32233
32333
311
13111
13211
13311
23111
23211
23311
33111
33211
33311
312
13112
13212
13312
23112
23212
23312
33112
33212
33312
313
13113
13213
13313
23113
23213
23313
33113
33213
33313
321
13123
13221
13321
23121
23221
23321
33123
33221
33321
322
13122
13222
13322
23122
23222
23322
33122
33222
33322
323
13123
13223
13323
23123
23223
23323
33123
33223
33323
331
13131
13231
13331
23131
23231
23331
33131
33231
33331
332
13132
13232
13332
23132
23232
23332
33132
33232
33332
333
13133
13233
13333
23133
23233
23333
33133
33233
33333
So, there you have it all the possible combinations for 3 targets just pick your favorite. What could go wrong? Things get a little bigger when you switch to 4 or 5 targets.