Basic System

5 card major, Multicolor 2 Diamond with Muiderberg

Blackout

Control Bid

Cuebid

DONT

4th suit forcing

Gerber

Inverted Minors

Jacoby 2NT

Muiderberg

Multicolour 2♦

Negative Double

Opening with no 5 Card major

Response to Overcall

Roman Keycard Blackwood

1♦ Response to 1♣ Club Opening

Splinter

Stayman

Support Double

Texas Transfers

Transfers

Unusual V Unusual

1NT Response

WIP

Mckenney Discards

Defense to Multi 2d

Redoubles

Signals