Lines of 19.Let's GaGaGa.lua from check-in 3dff221746 that are changed by the sequence of edits moving toward check-in f8a1b1a6a8:

                         1: --[[message
3dff221746 2023-04-17    2: 更新：2023-04-14
                         3: 卡数：27
                         4: 规则：大师3
                         5: 一起来我我我
                         6: ]]
                         7: --puzzle1
                         8: Debug.SetAIName("四妹")
                         9: Debug.ReloadFieldBegin(DUEL_ATTACK_FIRST_TURN+DUEL_SIMPLE_AI+DUEL_PSEUDO_SHUFFLE,3)
                        10: Debug.SetPlayerInfo(0,700,0,0)
                        11: Debug.SetPlayerInfo(1,12200,0,0)
                        12: 
                        13: local e0=Effect.GlobalEffect()
                        14: e0:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
                        15: e0:SetCode(EVENT_ADJUST)
                        16: e0:SetCountLimit(1)
                        17: e0:SetCondition(function(e,tp,eg,ep,ev,re,r,rp) return Duel.GetLP(0)>0 end)
                        18: e0:SetOperation(function(e,tp,eg,ep,ev,re,r,rp)
                        19: local g=Duel.SelectMatchingCard(tp,Card.IsAbleToHand,tp,LOCATION_DECK,0,6,6,nil)
                        20: if g:GetCount()>0 then
                        21:   Duel.SendtoHand(g,nil,REASON_RULE)
                        22: end end)
                        23: Duel.RegisterEffect(e0,0)
                        24: 
                        25: Debug.AddCard(14785765,0,0,LOCATION_DECK,0,POS_FACEDOWN)
                        26: Debug.AddCard(71453557,0,0,LOCATION_DECK,0,POS_FACEDOWN)
                        27: Debug.AddCard(72355441,0,0,LOCATION_DECK,0,POS_FACEDOWN)
                        28: Debug.AddCard(90673413,0,0,LOCATION_DECK,0,POS_FACEDOWN)
                        29: Debug.AddCard(51790181,0,0,LOCATION_DECK,0,POS_FACEDOWN)
                        30: Debug.AddCard(81816475,0,0,LOCATION_DECK,0,POS_FACEDOWN)
                        31: Debug.AddCard(12298909,0,0,LOCATION_DECK,0,POS_FACEDOWN)
                        32: Debug.AddCard(52105192,0,0,LOCATION_DECK,0,POS_FACEDOWN)
                        33: Debug.AddCard(98494543,0,0,LOCATION_DECK,0,POS_FACEDOWN)
                        34: --~ Debug.AddCard(72355441,0,0,LOCATION_DECK,0,POS_FACEDOWN)
                        35: --~ Debug.AddCard(90673413,0,0,LOCATION_DECK,0,POS_FACEDOWN)
                        36: --~ Debug.AddCard(51790181,0,0,LOCATION_DECK,0,POS_FACEDOWN)
                        37: Debug.AddCard(26082117,0,0,LOCATION_GRAVE,0,POS_FACEUP)
                        38: Debug.AddCard(33420078,0,0,LOCATION_GRAVE,0,POS_FACEUP)
                        39: Debug.AddCard(77334267,0,0,LOCATION_EXTRA,0,POS_FACEDOWN)
                        40: Debug.AddCard(92661479,0,0,LOCATION_EXTRA,0,POS_FACEDOWN)
                        41: Debug.AddCard(38495396,0,0,LOCATION_EXTRA,0,POS_FACEDOWN)
                        42: Debug.AddCard(91949988,0,0,LOCATION_EXTRA,0,POS_FACEDOWN)
                        43: Debug.AddCard(95040215,0,0,LOCATION_EXTRA,0,POS_FACEDOWN)
                        44: Debug.AddCard(65878864,0,0,LOCATION_MZONE,2,POS_FACEDOWN_DEFENSE)
                        45: Debug.AddCard(61705417,0,0,LOCATION_SZONE,1,POS_FACEDOWN)
                        46: Debug.AddCard(97077563,0,0,LOCATION_SZONE,2,POS_FACEDOWN)
                        47: Debug.AddCard(44330098,1,1,LOCATION_HAND,0,POS_FACEDOWN)
                        48: Debug.AddCard(75652080,1,1,LOCATION_GRAVE,0,POS_FACEUP)
                        49: Debug.AddCard(34710660,1,1,LOCATION_GRAVE,0,POS_FACEUP)
                        50: Debug.AddCard(80117527,1,1,LOCATION_GRAVE,0,POS_FACEUP,true)
                        51: Debug.AddCard(1992816,1,1,LOCATION_MZONE,2,POS_FACEUP_ATTACK,true)
                        52: Debug.AddCard(89631139,1,1,LOCATION_MZONE,2,POS_FACEUP_ATTACK)
                        53: local g1=Debug.AddCard(66235877,1,1,LOCATION_MZONE,2,POS_FACEUP_ATTACK)
                        54: g1:CompleteProcedure()
                        55: Debug.AddCard(44095762,1,1,LOCATION_SZONE,1,POS_FACEDOWN)
                        56: Debug.AddCard(44095762,1,1,LOCATION_SZONE,2,POS_FACEDOWN)
                        57: Debug.AddCard(44095762,1,1,LOCATION_SZONE,3,POS_FACEDOWN)
                        58: Debug.ReloadFieldEnd()
                        59: --~ Debug.ShowHint("在这个回合取得胜利！")
                        60: Debug.ShowHint("从卡组中选择六张卡加入手卡！")
                        61: aux.BeginPuzzle()
                        62: local e999=Effect.GlobalEffect()
                        63: e999:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
                        64: e999:SetCode(EVENT_DAMAGE)
                        65: e999:SetCondition(function(e,tp,eg,ep,ev,re,r,rp) return Duel.GetLP(1)<=0 end)
                        66: e999:SetOperation(function(e,tp,eg,ep,ev,re,r,rp)
                        67: Debug.ShowHint("残局群181175613") end)
                        68: Duel.RegisterEffect(e999,0)