Kyouko 2/1 System Notes

相浦橋子(Aiura Kyouko)

※ 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


- 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)

• 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

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