Kyouko 2/1 System Notes
※ To view the convention cards horizontally, erase '65723d266d6f62696c653d79'(the last 24 hex digits, right after ~6e) on the website links!
※ Extensions to the WBF Abbreviation list in WBF Guide 1.3:
c = cd = card(s)
lv. = level
OP = opening
NS = New suit
J = jump
J/S = jump shift
J/Q = jump cuebid
Q = cue(bid)
LR = limit raise
GR = LR+ = good raise
MED = medium
XX = Redouble
STD = standard
PTS = points
TP = Total Pts
DP = Distribution Pts
LP = Length Pts
SSG/T = short suit G/T
LSG/T = long suit G/T
ST = slam try
BPH = by passed hand
BUPH = by unpassed hand
Dir. = direct (seat)
Bal. = balancing (seat)
over: subsequent w/ some interference
after: subsequent w/ no interference
ⓐ: adjustable within agreements
Kyouko 2/1 CC Light
https://www.tinyurl.com/Kyouko2over1Light
※ Based on GIB's basic 2/1FG system with some modifications ※
【General Approach】
• Requires min. 12 HCP to open; 11 HCP requires 2 controls
• Re-evaluations
Rule of 20 to consider better distributions
±AT-QJ/3
+0.5pt for every working honor
+2pt for every 3+cd solid suit
+0.5pt only for AK
• (5422) considered as BAL if both doubletons are stopped
- Notrump opening & sequences -
• 1NT: 14+~17 HCP BAL. 5cM common
Stayman: as passage for Inv. 2NT
Extended Jacoby Tfrs
3M: Super-accepts
Others(below 3M): doubleton-showing resp.s
3NT: (33)43 flat
minor tfrs
2♠️: range-inquiry / tfr to ♣️s (a.k.a. Rodwell)
2NT: min.
3♣️: weak clubs
3♣️: max.
3NT: to game
2NT: tfr to ♦️s
3m: 6+cd with 2 of AKQ, rebids 3NT w/ 3rd
4♣️: Quant. Gerber 1430
Texas Tfr
4♠️: ♣️5♦️4(22) ST
4NT: ♣️4♦️5(22) ST
• 2NT: 19+~21 HCP BAL, 5cM common
Stayman
Smolen ⓐ(Can be replaced with Puppet Stayman)
Extended Jacoby Tfrs
3M: Super-accepts
Others(below 3M): doubleton-showing resp.s (BBO style)
3NT: 4333 flat
minor tfrs
3♠️: range-inquiry / Tfr to ♣️s
3NT: min.
4♣️: weak clubs
4♣️: max.
Pass: s/o
5♣️: to game
3NT: tfr to ♦️s
3m: 6+cd with 2 of AKQ, rebids 3NT w/ 3rd (Inv. to Gambling 3NT)
4♣️: Quant. Gerber 1430
Texas Tfr
4♠️: ♣️5♦️4(22) ST
4NT: ♣️4♦️5(22) ST
• Gambling 3NT; solid minor
No side A or K in 1st & 2nd seats
• 4NT Ace INQ
5♣️: None
5NT: any two As
- Suit openings & sequences -
• 1m: could be 3 if 4333, 3433 or 4432.
2m resp. inverted, GF
1♦️-2♣️ 1RF
Walsh resp. to 1♣️(Bypass 5+♦️)
1♣️-1♦️-1NT could have 4cM
Splinter(Double jump)
• 1M: 5cd
Opens 1♠️ with 5-5 in♠️ & ♣️
2M direct raise: 3cd 7-10 pts
1NT then 2M: 2-3cd 6-9pts
• 2♣️: strong, artif. 22~ HCP or 8.5 winners
2♦️ waiting requires at least one K or two Qs, 2♥️ negative
2NT=♥️ positive
• 2♦️♥️♠️: Weak, usually 6cd, at least headed by Q if fav.
Could be 5cd when NV
Ogust 2NT ; 5-8/9-11 range split ⓐ
(can be replaced with feature INQ)
ⓐ (※ If allowed, 2♦️ opening could be switched to Ekren)
• 4m: Namyats
4♣️: Good 8cd ♥️ w/ side stopper
4♦️: Good 8cd ♠️ w/ side stopper
• 4M: Bad 8cM or no side stop
【Subsequent bids】
• 2/1 FG
except 1♦️-2♣️ (1RF)
• 1M-1NT Semi-F
• 2-way GT
1M-2M-Next bid(2♠️/2NT): SSG/T
1M-2M-3x: LSG/T
1♥️-2♥️-2NT LSG/T on ♠️s
• OP jump rebid (ex: 1x-1y-3x): 6+cd, 17-20 HCP
• OP M rebid after 2/1 resp. could be 5cd
• Raising Resp.'s suit usually promises 4cd, occasionally w/ solid 3cd
• New suit resp.s after preempts = NF
Paralell Twos For You(by Nigel Jones) have details about its efficiency.
- Jump shifts -
• Wk @ 2-lv. ⓐ (Could be replaced with Soloway style; 17+ good suit)
• 1M-3m & 1♠️-3♥️: Inv.
1♣️-2♦️ & 1♦️-3♣️ Criss-Cross Inv. ⓐ (as inverted minors=FG)
• Fit-showing in comp. & BPH non-comp.
• Double J/S: Splinters
• Triple J/S: Exclusion 1430
• J/Q: mixed raise
- Particular conventions -
• Jacoby 2NT
• 2-way CB; 1-way BPH
• 2- way REV Drury (BBO-style followups)
【Slam bidding】
• Quantitative Gerber 4♣️ 1430; over 1NT, 2NT, & Stayman resp.s(agreeing to bid major)
4♦️: 1/4 aces
4♥️: 0/3 aces
4♠️: 2 aces, declining slam
4NT: 2 aces, accepting slam
• RKCB 1430 ⓐ (Changeable to 0314/D0P1/DEPO)
D1P0/R1P0(0•3, 1•4, 2 w/o, 2 w/)
DOPE(0•2•4, 1•3•5) over 5 trump
• 5NT Pick-A-Slam
rebid in outside suit shows cheapest 4cd(stopper issue elsewhere)
- Quantitative Gerber 1430 -
Kings Quanity; step resp.s afterwards:
After 14/30 resp.: 2nd step
After 2 resp.: lowest non-4NT step
Explanation on responding over Stayman resp.s (by Maritha Pottenger)
【Comp. auction】
• 1-lv. O/c: 5+cd, 7~17 HCP
• 2-lv. O/c: 5+cd, Openable(usually 12)~17 HCP (※ see General Approach)
• Supp. Ⅹ/ⅩⅩ →2♥️ ⓐ(Range can be extended →2♠️)
• (4↓-lv.) Jump cuebid: mixed raise 7-9pts
• Capp. over 1NT OP; 5-4 when favorable or equal ⓐ
(Can be utilized with Gates Ⅹ BPH(I prefer 5♠️-4♥️MM) ⓐ
or be replaced with Helms-Lohmann)
• Min-Max Michaels cuebid & UNT
(i.e. n/a @ 0-7 & 13-15 pts w/o good 6-5+ or good (5530))
Sandwich 1NT BPH
Unusual vs. Unusual; lower Q=GR, higher Q=FG in oM
• vs. preempts:
T/O Ⅹ →4♥️, optional
(Non-)Leaping Michaels
Directional-asking bids(a.k.a. "Western" cuebid) @ 3-lv.
2m-3m: DAB
2m-4m: MM
2NT O/C: 15+-18 HCP, Systems on
• vs. Str 1♣️: Mathe
Ⅹ: MM 4-4+; 5-4+ V
1NT: mm 4-4+; 5-4+ V
• vs. Multi 2♦️ ⓐ
Ⅹ: 13-15 BAL, or any 16+
2NT: 16-18 BAL, Systems on
- After (x)-s-(y)-? / (y)-s-(x)-? -
• cheaper Q of (x): 3cd good raise
• higher Q of (y): 4+cd good raise
• Forced Above 4-lv:
cheaper Q: mixed raise
higher Q: good raise
- After (1x)-s-(2x)-? or (1x)-s-(3x)-? -
• 3s: MR
• No wk raises
- After (1x)-P-(1y)-? -
• Q in resp..’s suit (y): always natural
• Q in OP.’s suit (x): NAT when x is minor
• Q in OP.’s suit after (1♥️)-P-(1♠️): Michaels
• 2NT BUPH: weak UNT
• 1NT BUPH: 15-18 BAL w/ both stoppers of opp.’s
• 1NT BPH: weak Sandwich 1NT(5-4+ in unbid suits)
- After (1x)-P-(1NT)-? -
• (x)=minor
2♣️: 5-4 MM; 2♦️ relay, longer M INQ
2♦️: 5-5+ MM
Ⅹ: 4-4 MM
3x or 3m unbid: NAT
• (x)=Major
2x: Michaels
Ⅹ: T/O
• 2NT: UNT, showing the two lowest unbid suits.
- Neg•Resp / D.S.I.P. Ⅹ & Forcing Passes -
• If F.P. as Inv.+ ultilized only (w/o DSIP Ⅹ), then NEG•RESP Ⅹ →7♥️
• If F.P. as GF & DSIP Ⅹ both ultilized, then NEG•RESP Ⅹ →3♠️
- Over interference of 1NT-(2♣️ Landy/2♦️ Cappelletti etc.) showing MM -
• Ⅹ: Penalty / Card-showing (could be only 4-4 in mm)
• 2♦️: mm, no M shortness, GF+
• 2♥️: GF+ in ♣️
• 2♠️: GF+ in ♦️
• 2NT: Lebensohl
M after relay: stopper-showing
• 3m: Inv. in m
• 3M: Shortness, mm, GF+
- Over interference of 1NT-(2♥️ Helms-Lohmann etc.) showing MM -
• Ⅹ: Penalty / Card-showing (could be only 4-4 in mm)
• 2♠️: Inv. in ♣️
• 2NT: Lebensohl
M after relay: stopper-showing
• 3♣️: Inv. in ♦️
• 3♦️: mm, GF+
• 3M: Shortness, mm, GF
【Opening leads & carding】
• Std Leads
BOSTON; (Bottom of smth, top of nothing)
4th from best
2nd from bad
• Std Carding
A from AKx vs suits
Kyouko 2/1 CC
https://www.tinyurl.com/Kyouko2over1
In addition to Kyouko 2/1FG Light:
【Non-comp.】
• 1♣️-2♦️ & 1♦️-3♣️ Inv.; Criss-Cross
• Vul-pending 2NT resp. to wk 2s: Ogust when NV; Feature-inquiry when V ⓐ
• Tfrs after 1x-1y-1NT & 1x-1y-2NT ⓐ
【Particular conventions】
• Std Puppet Stayman over 2NT
3NT: 5 ♠️s & 4 ♥️s ⓐ
• 2-way Reverse Drury (BBO-style follow-ups)
• Exclusion(a.k.a. Voidwood; triple J/S) 1430
• Control bids
1st & 2nd round (Italian style)
No control bids @ 5-lv.
• Non-Serious(Frivolous) 3NT
• Last Train ST ⓐ
【Comp.】
• Equal-Lv. Conv. Ⅹ →4♠️ ⓐ
• Snapdragon Ⅹ →2♠️ ⓐ
• Card-showing / D.S.I.P. Ⅹ; passes FG
☆Bal. Jump O/C could range to Int.(Gd 14~16pts 6cd), if partner=PH☆ ⓐ
• Helms-Lohmann over STR 1NT OP
【Defensive play】
• Carding exceptions
K=strong vs NT; unblock/count
A/Q=Attitude
Coded 10s & 9s (Jack Denies any H, Ten Implies 0 or 2 higher H, 9 also implies Ten) ⓐ
※ Modded for broken sequences only