{"id":23648,"date":"2026-07-13T03:52:03","date_gmt":"2026-07-13T02:52:03","guid":{"rendered":"https:\/\/bridge.com\/?post_type=publication&p=23648"},"modified":"2026-07-13T03:52:03","modified_gmt":"2026-07-13T02:52:03","slug":"technical-flaws-of-5-card-major-systems-part-2","status":"publish","type":"publication","link":"https:\/\/bridge.com\/en\/publication\/technical-flaws-of-5-card-major-systems-part-2\/","title":{"rendered":"Technical Flaws of 5-Card Major Systems – Part 2"},"content":{"rendered":"

The Technical Flaws of 2\/1 and Standard American<\/strong><\/p>\n

To see the technical flaws clearly, let’s review standard responder options following a 1\u2660<\/span> opening when holding fewer than 4 cards in support:<\/p>\n

\n

Responder Strength<\/strong>……….2\/1 Game Force Response<\/strong>……….Standard American Response<\/strong><\/span><\/p>\n

Fewer than 6 HCP<\/strong>……………PASS………………………………………..PASS<\/span><\/p>\n

6\u20139 HCP<\/strong>…………………………1NT<\/strong> (<\/em><\/span>Dual-Range Flaw<\/em><\/span>) <\/em>or 2\u2660<\/span>…….1NT or 2\u2660<\/span><\/span><\/p>\n

10\u201312 HCP<\/strong>………………………1NT<\/strong> (<\/em><\/span>Dual-Range Flaw<\/em><\/span>)……………..<\/em>2\u2663<\/span> \/ 2<\/strong><\/span>\u2666<\/span><\/strong><\/span> \/ 2<\/strong><\/span>\u2665<\/span><\/strong><\/span> (<\/em><\/span>Dual-Range Flaw<\/em><\/span>)<\/em><\/span><\/p>\n

13+ HCP<\/strong>…………………………..2\u2663<\/span> \/ 2<\/span>\u2666<\/span><\/span> \/ 2<\/span>\u2665<\/span><\/span>………………………………2\u2663<\/span> \/ 2<\/strong><\/span>\u2666<\/span><\/strong><\/span> \/ 2<\/strong><\/span>\u2665<\/span><\/strong><\/span> (<\/em><\/span>Dual-Range Flaw<\/em><\/span>)<\/em><\/span><\/p>\n<\/div>\n

The systemic flaws reveal themselves as dual-range bids<\/strong>:<\/p>\n

    \n
  1. \n

    The 2\/1 Flaw:<\/strong> 2\/1 uses 1NT for both the weak 6\u20139 HCP range and the invitational 10\u201312 HCP range. The point spread is simply too wide for accurate part-score bidding.<\/p>\n<\/li>\n

  2. \n

    The SA Flaw:<\/strong> Standard American uses the exact same 2-level responses for both 10\u201312 HCP and 13+ HCP hands. This eliminates any immediate game-force certainty on the first round of bidding.<\/p>\n<\/li>\n<\/ol>\n

    The Modern American Majors Fixes<\/strong><\/p>\n

    Modern American Majors completely eliminates both dual-range flaws by re-purposing the lowest available responses:<\/p>\n

      \n
    • \n

      The 2\/1 Solution:<\/strong> MM re-purposes the 2\u2663<\/span> bid as an artificial response showing an invitational 11\u201312 HCP hand, taking the burden off 1NT.<\/p>\n<\/li>\n

    • \n

      The SA Solution:<\/strong> MM introduces an artificial 2\u2666<\/span><\/strong><\/span> bid as a dedicated, immediate Game Force, separating the strong hands from the invitational hands instantly.<\/p>\n<\/li>\n<\/ul>\n

      The Modern Majors System Compared<\/strong><\/p>\n

      In the Modern Majors framework, all standard 2\/1 game-force bids are combined into a single bid: 2\u2666<\/span><\/strong><\/span>. This frees up 2\u2663<\/span> to handle all invitational 11\u201312 HCP hands. 1NT remains strictly non-forcing, and a 2\u2665<\/span><\/strong><\/span> response specifically promises a 5-card or longer heart suit.<\/p>\n

      In MM, our fundamental bidding priority is Value-First, Suit-Second<\/strong>. If multiple descriptions apply, you must bid the option highest on the priority list below:<\/p>\n

      \n

      2\/1 Game Force<\/strong>………………………Standard American<\/strong>……………………Modern Amerian Majors<\/strong><\/p>\n

      1NT<\/strong>: 6\u201312 HCP…………………………1NT<\/strong>: 6\u20139 HCP………………………………1NT<\/strong>: 6\u20139 (10) HCP<\/p>\n

         Any distribution, no support………Any distribution, no support……………Any distribution, no support<\/p>\n

      2\u2663<\/span><\/strong>: 13+ HCP, Game Force………….2\u2663<\/span><\/strong>: 10+ HCP…………………………………..2\u2663<\/span><\/strong>: 11\u201312 HCP<\/p>\n

         3+ Clubs………………………………………4+ Clubs……………………………………..All Invitational Hands<\/em><\/p>\n

      2<\/strong>\u2666<\/span><\/strong><\/span>: 13+ HCP, Game Force…………..2<\/strong>\u2666<\/span><\/strong><\/span>: 10+ HCP………………………………….2<\/strong>\u2666<\/span><\/strong><\/span>: 13+ HCP, Game Force<\/p>\n

         3+ Diamonds……………………………….4+ Diamonds…………………………………..Catch-all Game Force<\/em><\/p>\n

      2<\/strong>\u2665<\/span><\/strong><\/span>: 13+ HCP, Game Force……………2<\/strong>\u2665<\/span><\/strong><\/span>: 10+ HCP…………………………………2<\/strong>\u2665<\/span><\/strong><\/span>: 13+ HCP Game Force*<\/em><\/p>\n

         5+ Hearts………………………………………4+ Hearts………………………………………..5+ Hearts<\/p>\n<\/div>\n

      * If you play Standard American, you can choose to play 2\u2665<\/span><\/strong><\/span> with your current definition.<\/p>\n

      The “Why” Behind Basic Modern American Majors<\/strong><\/p>\n

        \n
      • \n

        If you have 11\u201312 HCP:<\/strong> You no longer hide your values in a forcing 1NT. You bid 2\u2663<\/span>. If the opener has a minimum hand, they can simply re-bid their major or bid 2NT, which you can pass. The partnership safely stops at the 2-level.<\/p>\n<\/li>\n

      • \n

        If you have 13+ HCP:<\/strong> You no longer worry about which minor suit to bid first just to show values. You bid 2\u2666<\/span><\/strong><\/span>. This is a descriptive waiting bid that tells the opener, “We are going to game,”<\/em> allowing the partnership to locate the optimal fit slowly and methodically.<\/p>\n<\/li>\n

      • \n

        1NT is your friend:<\/strong> Because 1NT is non-forcing, if you hold 6 points opposite an opener’s minimum 12, you can comfortably play 1NT rather than being forced into a high 2-level or 3-level contract you cannot make.<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

        The Technical Flaws of 2\/1 and Standard American To see the technical flaws clearly, let’s review standard responder options following a 1\u2660 opening when holding…<\/p>\n","protected":false},"author":288,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[]},"categories":[],"tags":[83],"language":[],"level":[450],"class_list":["post-23648","publication","type-publication","status-publish","hentry","tag-bidding","level-all-levels"],"acf":[],"publication_lang":"gb","_links":{"self":[{"href":"https:\/\/bridge.com\/en\/wp-json\/wp\/v2\/publication\/23648","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bridge.com\/en\/wp-json\/wp\/v2\/publication"}],"about":[{"href":"https:\/\/bridge.com\/en\/wp-json\/wp\/v2\/types\/publication"}],"author":[{"embeddable":true,"href":"https:\/\/bridge.com\/en\/wp-json\/wp\/v2\/users\/288"}],"replies":[{"embeddable":true,"href":"https:\/\/bridge.com\/en\/wp-json\/wp\/v2\/comments?post=23648"}],"wp:attachment":[{"href":"https:\/\/bridge.com\/en\/wp-json\/wp\/v2\/media?parent=23648"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bridge.com\/en\/wp-json\/wp\/v2\/categories?post=23648"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bridge.com\/en\/wp-json\/wp\/v2\/tags?post=23648"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/bridge.com\/en\/wp-json\/wp\/v2\/language?post=23648"},{"taxonomy":"level","embeddable":true,"href":"https:\/\/bridge.com\/en\/wp-json\/wp\/v2\/level?post=23648"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}