RBC - 1C Opening - Part I

1♣ Æ

Opener	Opp1	Responder	Opp2
1♣ (11-21, 3+♣)	Pass	1♦ (f1, 4+♦, may have 4M) 1♥ (f1, 4+♥) 1♠ (f1, 4+♠) 1NT (nf, bal, denies 4M) 2♣ (gi, 5+♣, 12+, no 4M) 2♦ (f1, 6/5♣, 9-11, any spl) 2♥ (Reverse Flannery) 2♠ (Reverse Flannery) 2NT (gi, bal, 11-12, no 4M) 3♣ (M, 5+♣, 5-9, no 4M) 3♦ (gf+, 5+♣, 12-15, ♦ spl, J) 3♥ (gf+, 5+♣, 12-15, ♥ spl, J) 3♠ (gf+, 5+♣, 12-15, ♠ spl, J) 3NT (to play, bal, 13-15, no 4M) 4♣ (slammish, rkc in ♣, J)

1♣ Æ 1♦ Æ

Opener	Opp1	Responder	Opp2
1♣ (11-21, 3+♣)	Pass	1♦ (f1, 4+♦, may have 4M)	Pass
1♥ (nf, 11-14, 4♥) 1♠ (nf, 11-14, 4♠) 1NT (nf, 11-14, may have 4M) 2♣ (nf, 6+♣, 11-14, no 4M) 2♦ (gf+, 6/5♣+5/4♦, 18-19) 2♥ (gf+, 6/5♣+5/4♥, 18-19) 2♠ (gf+, 6/5♣+5/4♠, 18-19) 2NT (gf+, bal, 18-19) 3♣ (gi, 6+♣, 15-17, J) 3NT (to play, 18-19, 6+♣, J)

1♣ Æ 1♦ Æ1♥ Æ

Opener	Opp1	Responder	Opp2
1♣ (11-21, 3+♣)	Pass	1♦ (f1, 4+♦, may have 4M)	Pass
1♥ (nf, 11-14, 4♥)	Pass	1♠ (not gf, 5/4♦+4♠) 1NT (nf, 5/4♦, no 4M) 2♣ (nf, 5/4♦+5/4♣) 2♦ (nf, 6+♦, no 4M) 2♥ (nf, 5/4♦+4♥) 2♠ (gf, 5/4♦+4♥, ♠ spl) 2NT (gi, 4+♦, denies 4M, 10-12) 3♣ (gi, 5/4♦+5/4♣, 10-12) 3♦ (gi, 6+♦, denies 4M, 10-12, J) 3♥ (gi, 5/4♦+4♥) 3♠ (5/4♦+4♥, slammish with ♠ ekc) 3NT (4+♦, denies 4M, to play) 4♣ (slammish, 5/4♦+4♥ with ♣ spl) 4♦ (gf+, 6♦+4♥, 16-18, J)

1♣ Æ 1♦ Æ1♠ Æ

Opener	Opp1	Responder	Opp2
1♣ (11-21, 3+♣)	Pass	1♦ (f1, 4+♦, may have 4M)	Pass
1♠ (nf, 11-14, 4♠)	Pass	1NT (nf, 5/4♦, may have 4♥) 2♣ (nf, 5/4♦+5/4♣) 2♦ (nf, 6+♦, no 4M) 2♥ (gf, 5/4♦+4♥) 2♠ (nf, 5/4♦+4♠) 2NT (gi, 4+♦, may have 4♥, 10-12) 3♣ (gi, 5/4♦+5/4♣, 10-12) 3♦ (gi, 6+♦, may have 4♥, 10-12, J) 3♥ (gf+, 5/4♦+4♠, ♥ spl) 3♠ (gi+, 5/4♦+4♠, 10-12) 3NT (4+♦, may have 4♥, to play) 4♣ (gf+, 5/4♦+4♠, ♣ spl)

1♣ Æ 1♦ Æ1NT Æ

Opener	Opp1	Responder	Opp2
1♣ (11-21, 3+♣)	Pass	1♦ (f1, 4+♦, may have 4M)	Pass
1NT (nf, 11-14, may have 4M)	Pass	2♣ (Chkbk) 2♦ (nf, 6+♦, no 4M) 2♥ (gf, 5/4♦+4♥) 2♠ (gf, 5/4♦+4♠) 2NT (gi, 4+♦, no 4M, 10-12) 3♣ (gi, 4♦+5♣, 10-12) 3♦ (gi, 6+♦, no 4M, 10-12, J) 3♥ (gf, 5/4♦+4♠, ♥ spl, 4144 or 4153) 3♠ (gf, 5/4♦+4♥, ♠ spl, 1444 or 1453) 3NT (4+♦, to play, J)

1♣ Æ 1♦Æ1♥ Æ 1♠ Æ:

Opener	Opp1	Responder	Opp2
1♣ (11-21, 3+♣)	Pass	1♦ (f1, 4+♦, may have 4M)	Pass
1♥ (nf, 11-14)	Pass	1♠ (nf, 5/4♦+4♠)	Pass
1NT (nf, 11-14) 2♣ (nf, min, 6♣+4♥) 2♦ (nf, min, 1435) 2♥ (nf, max, 6♣+4♥) 2♠ (nf, 11-14, 4414 or 4423) 2NT (nf, max, 5♣+4♥) 3♣ (nf, 6♣+4♥, 14-17) 3♦ (14-17, 4414) 3♠ (14-17, 4423)

1♣ Æ 1♦ Æ1♥ Æ 1NT Æ:

Opener	Opp1	Responder	Opp2
1♣ (11-21, 3+♣)	Pass	1♦ (f1, 4+♦, may have 4M)	Pass
1♥ (nf, 11-14)	Pass	1NT (nf, 5/4♦, no 4M)	Pass
2♣ (nf, 11-14, 6♣+4♥) 2♦ (nf, 11-14, 1435 or 1444) 2♥ (nf, 14, 6♣+4♥) 2♠ (nf, 14-17, 4414) 2NT (nf, 14, 5♣+4♥) 3♣ (nf, 6♣+4♥, 14-17) 3♦ (14-17, 1444)

1♣ Æ 1♦ Æ1♠ Æ

Opener	Opp1	Responder	Opp2
1♣ (11-21, 3+♣)	Pass	1♦ (f1, 4+♦, may have 4M)	Pass
1♠ (3+♣+4♠)	Pass	1NT (nf, 5/4♦, may have 4♥) 2♣ (nf, 5/4♦+5/4♣) 2♦ (nf, 6+♦, no 4M) 2♥ (gf, 5/4♦+4♥) 2♠ (nf, 5/4♦+4♠) 2NT (gi, 4+♦, may have 4♥, 10-12) 3♣ (gi, 5/4♦+5/4♣, 10-12) 3♦ (gi, 6+♦, may have 4♥, 10-12) 3♥ (5/4♦+4♠, ♥ spl) 3♠ (bal, gf in ♠) 3NT (4+♦, may have 4♥, to play) 4♣ (5/4♦+4♠, ♣ spl)

1♣ Æ 1♦ Æ1NT Æ

Opener	Opp1	Responder	Opp2
1♣ (11-21, 3+♣)	Pass	1♦ (f1, 4+♦, may have 4M)	Pass
1NT	Pass	2♣ (Chkbk) 2♦ (nf, 6+♦, no 4M) 2♥ (gf, 5/4♦+4♥) 2♠ (gf, 5/4♦+4♠) 2NT (gi, 4+♦, no 4M) 3♣ (gi, 4♦+5♣) 3♦ (gi, 6+♦, no 4M) 3♥ (gf+, 5/4♦+4♠, ♥ spl, 4144 or 4153) 3♠ (gf+, 5/4♦+4♥, ♠ spl, 1444 or 1453) 3NT (4+♦, to play)

1♣ Æ 1♦Æ1♥ Æ 1♠ Æ1NT:

Opener	Opp1	Responder	Opp2
1♣ (11-21, 3+♣)	Pass	1♦ (f1, 4+♦, may have 4M)	Pass
1♥ (nf, 11-14)	Pass	1♠ (nf, 5/4♦+4♠)	Pass
1NT	Pass	2♣ (nf, 4144) 2♦ (nf, 11-14, , 6♦+4♠) 2♥ (nf, 11-14, 5/4♦+4♥) 2NT (gi, bal, 10-12) 3♣ (gi, 4144, 10-12) 3♦ (gf, 14-17, 6♦+4♠)

1♣ Æ 1♥ Æ:

Opener	Opp1	Responder	Opp2
1♣ (11-21, 3+♣)	Pass	1♥ (f1, 4+♥, may have 4♠)	Pass
1♠ (nf, 11-14, 3+♣+4♠) 1NT (nf, 11-14, no 4M) 2♣ (nf, 6+♣, 11-14, no 4M) 2♦ (gf+, 6/5♣+5/4♦, 18-19) 2♥ (nf, 11- 14, 3+♣+4♥) 2♠ (gf+, 6/5♣+5/4♠, 18-19) 2NT (gf+, bal, 18-19) 3♣ (gi+, 6+♣, 15-17) 3♦ (gf+, 6/5♣+5/4♥, 17+, ♦ spl) 3♥ (gi+, 15- 17, 3+♣+4♥) 3♠ (gf+, 6/5♣+5/4♥, 17+, ♠ spl) 3NT (18-19, 6+♣, to play) 4♣ (gf, 6♣+4♥, 16-18) 4♦ (6♣+4♥, slammish, ♦ ekc)

1♣ Æ 1♥ Æ1♠ Æ

Opener	Opp1	Responder	Opp2
1♣ (11-21, 3+♣)	Pass	1♥ (f1, 4+♥, may have 4♠)	Pass
1♠	Pass	1NT (nf, 5/4♥) 2♣ (nf, 5/4♣+4♥) 2♦ (4th suit, gf) 2♥ (nf, 5+♥) 2♠ (nf, 5/4♥+4♠) 2NT (gi, bal, 10-12) 3♣ (gi, 5♣+5♥, 10-12) 3♦ (gf, 5/4♥+4♠, ♦ spl) 3♥ (gi+, 6+♥) 3♠ (gf, 5/4♥+4♠) 3NT (to play) 4♣ (gf, 6♣+4♥) 4♦ (5/4♥+4♠, slammish, ♦ ekc)

1♣ Æ 1♥ Æ1NT Æ

Opener	Opp1	Responder	Opp2
1♣ (11-21, 3+♣)	Pass	1♥ (f1, 4+♥, may have 4♠)	Pass
1NT	Pass	2♣ (Chkbk) 2♦ (artificial gf with 4♥) 2♥ (nf, 5+♥) 2♠ (gf+, 6/5♥+5/4♠) 2NT (gi, bal, 10-12) 3♣ (gi, 5♣+4♥, 10-12) 3♦ (gi, 5♦+4♥, 10-12) 3♥ (gf, 6+♥, 12+) 3♠ (gf, 5♣+4♥, 12+, ♠ spl) 3NT (to play) 4♣ (gf+, 6♣+4♥, 16-18)

1♣ Æ 1♥ Æ1♠ Æ1NTÆ

Opener	Opp1	Responder	Opp2
1♣ (11-21, 3+♣)	Pass	1♥ (f1, 4+♥, may have 4♠)	Pass
1♠	Pass	1NT (nf, 5/4♥)	Pass
2♣ (nf, 6♣+4♠, 11-13) 2♦ (gi, 15-17, 4144 or 4045) 2♥ (gi, 15-17, 4414 or 4405 ) 2♠ (nf, max, 6♣+4♠) 2NT (nf, max, 4135) 3♣ (nf, 15-17, 6♣+4♠)

1♣ Æ 1♠ Æ:

Opener	Opp1	Responder	Opp2
1♣ (11-21, 3+♣)	Pass	1♠ (f1, 4+♠, may have 4♥)	Pass
1NT (nf, 11-14, may have 4M) 2♣ (nf, 6+♣, 11-14, no 4M) 2♦ (gf+, 18-19, 6/5♣+5/4♦) 2♥ (gf+, 18-19, 6/5♣+5/4♥) 2♠ (nf, 11- 14, 3+♣+4♠) 2NT (gf+, bal, 18-19) 3♣ (gf, 6+♣, 15-17) 3♦ (gf+, 17+, 6/5♣+5/4♠, ♦ spl) 3♥ (gf+, 17+, 6/5♣+5/4♠, ♥ spl) 3♠ (gf, 15- 17, 3+♣+4♠) 3NT (18-19, 6+♣, to play) 4♣ (gf, 6♣+4♠, 16-18) 4♦ (6/5♣+4♠, slammish, ♦ ekc) 4♥ (6/5♣+4♠, slammish, ♥ ekc)

1♣ Æ 1♠ Æ1NT Æ

Opener	Opp1	Responder	Opp2
1♣ (11-21, 3+♣)	Pass	1♠ (f1, 4+♠)	Pass
1NT	Pass	2♣ (Chkbk) 2♦ (artificial gf with 4♠) 2♥ (gf, 5♠+4♥) 2♠ (nf, 5+♠) 2NT (gi, bal, 10-11) 3♣ (gi, 5♣+4♠) 3♦ (gf+, 5♣+4♠, ♦ spl) 3♥ (gf+, 5♣+4♠, ♥ spl) 3♠ (gf, 6+♠) 3NT (to play) 4♣ (gf+, 6♣+4♠)

1♣ Æ 1NT Æ:

Opener	Opp1	Responder	Opp2
1♣ (11-21, 3+♣)	Pass	1NT (bal, 6-10, no 4M)	Pass
2♣ (nf, 6+♣, 11-14, no 4M) 2♦ (gf, 18-19, 2146 or 1246) 2♥ (gf, 18-19, 2416 or 1516) 2♠ (gf, 18-19, 4216 or 4126 or 5116) 2NT (gf, 18-19, bal, 3325 or 3334 or 2336) 3♥ (gf, 18-19, 3145 or 3136, ♥ spl) 3♠ (gf, 18-19, 1345 or 1336, ♠ spl) 3NT (18-19, 6+♣, to play)