SYSTEM         : SKROT
Watch out:	 1c: 10-13 balanced or 17 hcp+
               2d: 3-9 hcp at least 4-4 in the majors
               2h: Short diamond 3-suiter, Precision style
Recommended defence: Vs 1 club: Take-out double, later 2c art. force.
               Aggressive preempts

               Vs. 2D: Double: 13+ at least 3-3 M or any17+. Later  doubles pen.
               2D - 2or 3M: Double: Takeout

               Vs. 2H: Take-out double. Pass and double with hearts

1NT            14-16 (17 bad)  5-card M possible.
               Resp: Stayman + transf . New suit after transfer GF on 3 level. 2S asks for m 
		pref.   (2NT = D) 2NT= inv with good m. 3 level inv. slam 6c+ no single in M.
               Negative doubles, cuebid GF 5cM, Lebensohl
1C             a) balanced 10-13, or b) any 17hcp+
               Resp: 1D = 0-7  1M = 4+, 8hcp+ 1NT/2C/2D=
               Nat NF, 2H GF clubs or 20+ bal. 2S GF diamonds 2 NT = Inv. without M 3any= Inv. 
		Norm 6c+
               Weak opener rebids 1 major over 1D.  Strong opener bids natural
               Weak opener bids 1S, 1NT or supports over 1 M. Strong opener bids
               own suit or 2 clubs without support 3 M (17-18) or 2 NT with support. 
        
1D             4+ (Rarely 3) unbalanced, 10-16, longer clubs possible
               Resp: 1NT: 6-9  no M or 16+ , not necc. bal.  2D = 9 - 12 NF 2M = 4-8, 6-c.  3D = 
		4-8
         
1M             5+, 10-16, but 15-16 balanced is a 1NT opener
               Resp: 1NT: 6-11 NF 2c: 10 - 13 3c support or natural, 2NT: GF 4card support

2C             5+, Prec.type, 10/11-16. Nice suit if only 5 clubs 
               Resp: 2D = at least inv. 4+h 2H = at least inv. 4+s, 2S = 5+D  2NT= at least inv. 
	 3+clubs

2D             4+h and 4+s, 3-9hcp
               Resp: 2NT: 16-19 NF, 3 C: At least inv. support for a M. 3D= slaminterest in a 
		minor 
       
2H             10 - 16  4-4-1-4, 4-4-0-5, 3-4-1-5 (weak clubs), 4-3-1-5 (weak clubs)
               Resp: 2NT: Asks strength and distribution 3 M = Inv.

2S             4-9 Normally 6 card suit
               Resp: 2NT asks singleton RONF
      
2Nt            5+d/4+c, 4 to 5,5 losers, 12 - 16
               Resp: 3 C asks distribution Normally GF

3C             13 - 16  6c+ 7 playing tricks, at least 3 of 5 top clubs

3D:            Pre 6c+ Nice suit 1st and 2nd hand

3M:            Pre 6c+ could be very weak non-vuln.

3NT:           Pre in a m. Broken suit

4m:            3-5 controls. Good 7+ corresponding M
4M:            Pre
General:       4th suit GF. 2NT replaces 4th suit at 3-level with stopper
VS.1NT:     	2C = D or M (at least 4/4) 2D = H or S+C (at least 4/5) 2H = S or m (at 
	least 5/5)
               2S = C or D+H (at least 5/5) 2NT = H+C or S+D (at least 5/5)

Cuebid         = 2 highest ranking suits not bid by opps. Con. unless NV ag. V
1NT:           15 - 18 2nd seat: Resp: Transfers  11 - 14 4th seat Resp: Natural, 
	 cue-bid only force

2NT:           2 lowest ranking suits not bid by opps. Con unless NV ag.V

VS.            Pre:  Takeout X + Lebensohl

	 Useful  Space Principle after overcalls

	Intermediate jump overcalls except  non-vuln. vs. vuln. 
Leads:         2nd/4th vs. suit contracts,  Attitude in NT 1st/3rd/5th in partner's suit
		(suit bid, shown or major suits after take-out doubles)

Carding:       UpSideDown. Reversed count. Smiths peter in NT 

 

rsed count. Smiths peter in NT 

T