Weak handのopen(sabine' system)

オリジナル
2D‥HのWeak2 または Sとminorsの2suiter(5-5以上)。3-9HCP。
　-2H = pass or correct
　-2S = forcing relay, opener cannot pass, but has to describe his hand
　　　-2NT S+C
　　　-3C S+D
　　　-3D weak-two in H MIN
　　　-3H
　　　-3S weak-two in H, 2 of the 3 top honours
　　　-3NT weak-two in H MAX
　-2NT = 5+spades 2+hearts at least invitational
　-3C/D = at least invitational values with own H/S suit
　-3H/S = Pass or correct
　-4C = Puppet to 4D, responder has own major
　-4D = asks for opener's major
　-4H/S = pass or correct

2D‥SのWeak2 または Hとminorsの2suiter(5-5以上)。3-9HCP。
　-2H = pass or correct
　-2NT = forcing relay, opener cannot pass, but has to describe his hand
　　　-3C H+C
　　　-3D H+D
　　　-3H weak-two in S MAX
　　　-35 weak-two in S MIN
　　　-3NT weak-two in S, 2 of the 3 top honours
　-3C/D = at least invitational values with own H/S suit
　-3H/S = Pass or correct
　-4C = Puppet to 4D, responder has own major
　-4D = asks for opener's major
　-4H/S = pass or correct

2S‥Both majorsの2suiter(5-5以上)またはBoth minorsの2suiter(5-5以上)。3-9HCP。
　-2NT = forcing relay, opener cannot pass, but has to describe his hand
　-3C/D/H/S = Pass or correct
　-4C/D = pass or correct
　-4H/S = to play