{"id":125038,"date":"2026-01-15T09:56:39","date_gmt":"2026-01-15T08:56:39","guid":{"rendered":"https:\/\/funbridge.com\/blog\/?p=125038"},"modified":"2026-01-15T09:56:51","modified_gmt":"2026-01-15T08:56:51","slug":"3e-4e-forcing-alain-levy","status":"publish","type":"post","link":"https:\/\/funbridge.com\/blog\/fr\/3e-4e-forcing-alain-levy\/","title":{"rendered":"3e et 4e couleurs forcing avec Alain L\u00e9vy"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Header_Whose-fault_Yellow-1-1024x576.jpg\" alt=\"\" class=\"wp-image-103576\" srcset=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Header_Whose-fault_Yellow-1-1024x576.jpg 1024w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Header_Whose-fault_Yellow-1-1024x576-300x169.jpg 300w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Header_Whose-fault_Yellow-1-1024x576-768x432.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><strong>La paire Nord-Sud a d\u00e9clar\u00e9 un tr\u00e8s mauvais contrat. Comme souvent, chacun des deux joueurs pense que son partenaire est responsable de l\u2019accident. Et vous, qu\u2019en pensez-vous ?<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Cette s\u00e9rie est consacr\u00e9e au th\u00e8me : <strong>la quatri\u00e8me couleur de l\u2019ouvreur<\/strong>.<br>\u2192 facile \u00b7 &#x2197; moyen \u00b7 \u2191 difficile<\/p>\n<\/blockquote>\n\n\n\n<div class=\"wp-block-stackable-spacer stk-block-spacer stk--no-padding stk-block stk-54cff90\" data-block-id=\"54cff90\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Probl\u00e8me 1 \u2192<\/h2>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-484ac3f\" data-block-id=\"484ac3f\"><style>.stk-484ac3f .stk--block-align-484ac3f{align-items:center !important;}<\/style><div class=\"stk-row stk-inner-blocks stk--block-align-484ac3f stk-block-content stk-content-align stk-484ac3f-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-d0c4874\" data-v=\"4\" data-block-id=\"d0c4874\"><style>@media screen and (min-width:690px){.stk-d0c4874 {flex:var(--stk-flex-grow, 1) 1 calc(50% - var(--stk-column-gap, 0px) * 1 \/ 2 ) !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-d0c4874-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-d0c4874-inner-blocks\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"933\" height=\"1024\" src=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Diagram_-43-933x1024.png\" alt=\"\" class=\"wp-image-125052\" srcset=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Diagram_-43-933x1024.png 933w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Diagram_-43-273x300.png 273w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Diagram_-43-768x843.png 768w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Diagram_-43.png 1000w\" sizes=\"auto, (max-width: 933px) 100vw, 933px\" \/><\/figure>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-5884d71\" data-v=\"4\" data-block-id=\"5884d71\"><style>@media screen and (min-width:690px){.stk-5884d71 {flex:var(--stk-flex-grow, 1) 1 calc(50% - var(--stk-column-gap, 0px) * 1 \/ 2 ) !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-5884d71-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-5884d71-inner-blocks\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"800\" src=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-32.png\" alt=\"\" class=\"wp-image-125053\" srcset=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-32.png 1000w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-32-300x240.png 300w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-32-768x614.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Le constat<\/h3>\n\n\n\n<p>L\u2019accident est grave : une de chute \u00e0 3 sans-atout, avec pourtant un chelem \u00e0 Tr\u00e8fle sans impasse, m\u00eame s\u2019il peut \u00eatre difficile \u00e0 ench\u00e9rir.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Les arguments<\/h3>\n\n\n\n<p><strong>Nord<\/strong><br>\u00ab 2<span style=\"color: #ff0404;\" class=\"stk-highlight\">&#x2665;<\/span> est une quatri\u00e8me couleur qui ne promet ni ne d\u00e9nie rien. Ta conclusion \u00e0 3SA avec un singleton \u00e0 C\u0153ur n\u2019a aucun sens. Tu dois commencer par me soutenir \u00e0 Tr\u00e8fle en disant 3<span style=\"color: #239817;\" class=\"stk-highlight\"><span style=\"color: #239817;\" class=\"stk-highlight\">&#x2663;<\/span><\/span> en situation forcing et ensuite, on verra. \u00bb<\/p>\n\n\n\n<p><strong>Sud<\/strong><br>\u00ab Sur 2<span style=\"color: #ff8707;\" class=\"stk-highlight\">&#x2666;<\/span>, tu dois nommer tes tenues : 2SA avec les deux tenues rouges, 2<span style=\"color: #ff0404;\" class=\"stk-highlight\">&#x2665;<\/span> avec une tenue \u00e0 C\u0153ur et 3<span style=\"color: #ff8707;\" class=\"stk-highlight\">&#x2666;<\/span> avec une tenue \u00e0 Carreau. Je n\u2019ai que 12H, je ne vois aucune raison de m\u2019aventurer vers une manche \u00e0 Tr\u00e8fle qui exige de r\u00e9aliser onze lev\u00e9es alors que je suis certain d\u2019aligner neuf lev\u00e9es \u00e0 sans-atout quand, bien s\u00fbr, tu arr\u00eates les C\u0153urs. \u00bb<\/p>\n\n\n\n\n\n\n<h3 class=\"wp-block-heading\">Le verdict<\/h3>\n\n\n\n<p>Les d\u00e9veloppements sur la troisi\u00e8me couleur forcing, que nous avons pourtant d\u00e9j\u00e0 \u00e9tudi\u00e9s dans ces lignes, posent toujours beaucoup de probl\u00e8mes. Un progr\u00e8s est toutefois \u00e0 noter : aucun des deux joueurs n\u2019a pens\u00e9 que 2<span style=\"color: #ff0404;\" class=\"stk-highlight\">&#x2665;<\/span> \u00e9tait une ench\u00e8re naturelle. On peut donc en d\u00e9duire que tous deux savent que la troisi\u00e8me couleur forcing exprim\u00e9e par l\u2019ench\u00e8re de 2<span style=\"color: #ff8707;\" class=\"stk-highlight\">&#x2666;<\/span> sur 2<span style=\"color: #239817;\" class=\"stk-highlight\"><span style=\"color: #239817;\" class=\"stk-highlight\">&#x2663;<\/span><\/span> d\u00e9nie quatre cartes \u00e0 C\u0153ur.<\/p>\n\n\n\n<p>\u00c0 premi\u00e8re lecture, les arguments de Nord et de Sud se tiennent. L\u2019un pense que 2<span style=\"color: #ff0404;\" class=\"stk-highlight\">&#x2665;<\/span> est une ench\u00e8re ambigu\u00eb sans vraiment expliquer pourquoi, l\u2019autre que l\u2019ouvreur doit simplement nommer ses couleurs tenues. Il est probable que nombre d\u2019entre vous pensent comme Sud. Pourtant, c\u2019est Nord qui est dans le vrai.<\/p>\n\n\n\n<p>La raison, pas toujours bien connue, est que l\u2019ench\u00e8re de 3<span style=\"color: #ff8707;\" class=\"stk-highlight\">&#x2666;<\/span> sur 2<span style=\"color: #ff8707;\" class=\"stk-highlight\">&#x2666;<\/span> n\u2019exprime pas simplement un arr\u00eat \u00e0 Carreau, mais garantit quatre cartes en situation forcing de manche, dans une zone de 13 \u00e0 16H. En cons\u00e9quence, l\u2019ench\u00e8re de 2<span style=\"color: #ff0404;\" class=\"stk-highlight\">&#x2665;<\/span> est bien une quatri\u00e8me couleur \u00e0 usages multiples.<\/p>\n\n\n\n<p><strong>D\u00e9finition de l\u2019ench\u00e8re de 2<span style=\"color: #ff0404;\" class=\"stk-highlight\">&#x2665;<\/span> :<\/strong><br>\u2022 ench\u00e8re ambigu\u00eb<br>\u2022 non autoforcing : l\u2019ouvreur peut passer sur 2&#x2660; et 2SA du r\u00e9pondant<br>\u2022 d\u00e9nie trois cartes \u00e0 Pique<br>\u2022 d\u00e9nie la tenue dans les deux autres couleurs<br>\u2022 s\u2019utilise avec une ouverture minimale, lorsque les Tr\u00e8fles ne m\u00e9ritent pas d\u2019\u00eatre annonc\u00e9s une troisi\u00e8me fois<br>\u2022 s\u2019emploie dans la zone forte de la redemande \u00e0 2<span style=\"color: #239817;\" class=\"stk-highlight\"><span style=\"color: #239817;\" class=\"stk-highlight\">&#x2663;<\/span><\/span>, avec un probl\u00e8me de tenue dans l\u2019une des deux couleurs, indiff\u00e9remment C\u0153ur ou Carreau<\/p>\n\n\n\n<p>Nord aurait pu faire une ench\u00e8re identique avec le m\u00eame jeu en inversant les tenues \u00e0 C\u0153ur et \u00e0 Carreau.<\/p>\n\n\n\n<p>Sud est donc seul responsable de l\u2019accident. D\u2019autant plus que, m\u00eame en face d\u2019une tenue \u00e0 C\u0153ur, il doit r\u00e9pondre 3<span style=\"color: #239817;\" class=\"stk-highlight\"><span style=\"color: #239817;\" class=\"stk-highlight\">&#x2663;<\/span><\/span> pour, par exemple, d\u00e9clarer le contrat de 6 Tr\u00e8fles en face de &#x2660;3 <span style=\"color: #ff0404;\" class=\"stk-highlight\">&#x2665;<\/span>A1095 <span style=\"color: #ff8707;\" class=\"stk-highlight\">&#x2666;<\/span>D7 <span style=\"color: #239817;\" class=\"stk-highlight\"><span style=\"color: #239817;\" class=\"stk-highlight\">&#x2663;<\/span><\/span>AR10853.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">L\u2019ench\u00e8re responsable de l\u2019accident<\/h3>\n\n\n\n<p>3SA sur 2<span style=\"color: #ff0404;\" class=\"stk-highlight\">&#x2665;<\/span>. Sud est responsable \u00e0 100 %.<\/p>\n\n\n\n<p><strong>La bonne s\u00e9quence :<\/strong><\/p>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-5282634\" data-block-id=\"5282634\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-5282634-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-ab5c69a\" data-v=\"4\" data-block-id=\"ab5c69a\"><style>@media screen and (min-width:690px){.stk-ab5c69a {flex:var(--stk-flex-grow, 1) 1 25% !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-ab5c69a-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-ab5c69a-inner-blocks\"><\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-b99e315\" data-v=\"4\" data-block-id=\"b99e315\"><style>@media screen and (min-width:690px){.stk-b99e315 {flex:var(--stk-flex-grow, 1) 1 50% !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-b99e315-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-b99e315-inner-blocks\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"894\" height=\"1024\" src=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-1-18-894x1024.png\" alt=\"\" class=\"wp-image-125054\" srcset=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-1-18-894x1024.png 894w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-1-18-262x300.png 262w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-1-18-768x880.png 768w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-1-18.png 1000w\" sizes=\"auto, (max-width: 894px) 100vw, 894px\" \/><\/figure>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-03e8a9d\" data-v=\"4\" data-block-id=\"03e8a9d\"><style>@media screen and (min-width:690px){.stk-03e8a9d {flex:var(--stk-flex-grow, 1) 1 25% !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-03e8a9d-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-03e8a9d-inner-blocks\"><\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-spacer stk-block-spacer stk--no-padding stk-block stk-9f719dc\" data-block-id=\"9f719dc\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Probl\u00e8me 2 &#x2197;<\/h2>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-866904f\" data-block-id=\"866904f\"><style>.stk-866904f .stk--block-align-866904f{align-items:center !important;}<\/style><div class=\"stk-row stk-inner-blocks stk--block-align-866904f stk-block-content stk-content-align stk-866904f-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-c637209\" data-v=\"4\" data-block-id=\"c637209\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-c637209-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-c637209-inner-blocks\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"933\" height=\"1024\" src=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Diagram_-1-34-933x1024.png\" alt=\"\" class=\"wp-image-125055\" srcset=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Diagram_-1-34-933x1024.png 933w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Diagram_-1-34-273x300.png 273w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Diagram_-1-34-768x843.png 768w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Diagram_-1-34.png 1000w\" sizes=\"auto, (max-width: 933px) 100vw, 933px\" \/><\/figure>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-7cd47a6\" data-v=\"4\" data-block-id=\"7cd47a6\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-7cd47a6-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-7cd47a6-inner-blocks\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"994\" height=\"1024\" src=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-2-13-994x1024.png\" alt=\"\" class=\"wp-image-125056\" srcset=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-2-13-994x1024.png 994w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-2-13-291x300.png 291w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-2-13-768x791.png 768w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-2-13.png 1000w\" sizes=\"auto, (max-width: 994px) 100vw, 994px\" \/><\/figure>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Le constat<\/h3>\n\n\n\n<p>Plus en forme que la paire pr\u00e9c\u00e9dente, nos deux jeunes amis ont r\u00e9ussi le casse du si\u00e8cle quand Est a d\u00e9cid\u00e9 d\u2019entamer de l\u2019As de Pique avant de rejouer atout. Nord n\u2019a pas laiss\u00e9 \u00e9chapper sa chance en faisant l\u2019impasse n\u00e9cessaire \u00e0 C\u0153ur, avant de couper un C\u0153ur et de tabler douze lev\u00e9es.<\/p>\n\n\n\n<p>Leurs commentaires m\u00e9langent plaisir du r\u00e9sultat et incertitude sur la signification de leurs ench\u00e8res, avec une dose de bon sens de bon augure.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Les arguments<\/h3>\n\n\n\n<p><strong>Nord<\/strong><br>\u00ab D\u00e9crire un tricolore 0-4-5-4 est trop rare. Mon intention \u00e9tait de jouer 3 sans-atout si tu tenais les Tr\u00e8fles et j\u2019ai donc invent\u00e9 cette ench\u00e8re de 3<span style=\"color: #239817;\" class=\"stk-highlight\"><span style=\"color: #239817;\" class=\"stk-highlight\">&#x2663;<\/span><\/span> comme une sorte de quatri\u00e8me couleur forcing, d\u00e9niant un soutien \u00e0 Pique. Si tu avais vu la t\u00eate de Kevin apr\u00e8s son entame de l\u2019As de Pique, je ne savais pas quoi lui dire. \u00bb<\/p>\n\n\n\n<p><strong>Sud<\/strong><br>\u00ab Pas b\u00eate du tout\u2026 si on en parle avant. Pour moi, tu avais simplement d\u00e9crit ton tricolore 18+H avec une chicane \u00e0 Pique et j\u2019avais toutes les raisons d\u2019envisager le contrat de 6 Tr\u00e8fles. Et m\u00eame quand tu as conclu \u00e0 6<span style=\"color: #ff8707;\" class=\"stk-highlight\">&#x2666;<\/span>, je n\u2019\u00e9tais pas d\u00e9sesp\u00e9r\u00e9. De mon c\u00f4t\u00e9 du paravent, cela a plut\u00f4t amus\u00e9 Chlo\u00e9. J\u2019aime bien Chlo\u00e9. \u00bb<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Le verdict<\/h3>\n\n\n\n<p>Ici encore, les deux interpr\u00e9tations de 3<span style=\"color: #239817;\" class=\"stk-highlight\"><span style=\"color: #239817;\" class=\"stk-highlight\">&#x2663;<\/span><\/span> ont leur m\u00e9rite. Ce sont des raisons statistiques qui expliquent pourquoi 3<span style=\"color: #239817;\" class=\"stk-highlight\"><span style=\"color: #239817;\" class=\"stk-highlight\">&#x2663;<\/span><\/span> doit \u00eatre utilis\u00e9 comme une quatri\u00e8me couleur forcing plut\u00f4t que comme une ench\u00e8re naturelle.<\/p>\n\n\n\n<p>L\u2019intuition de Nord \u00e9tait bonne. 3<span style=\"color: #239817;\" class=\"stk-highlight\"><span style=\"color: #239817;\" class=\"stk-highlight\">&#x2663;<\/span><\/span> exprime un bicolore cher maximal, trop fort pour se contenter de r\u00e9p\u00e9ter sa mineure d\u2019ouverture. Apr\u00e8s une ouverture de 1<span style=\"color: #239817;\" class=\"stk-highlight\"><span style=\"color: #239817;\" class=\"stk-highlight\">&#x2663;<\/span><\/span>, c\u2019est l\u2019ench\u00e8re de 3<span style=\"color: #ff8707;\" class=\"stk-highlight\">&#x2666;<\/span> qui jouerait le m\u00eame r\u00f4le et demanderait un arr\u00eat \u00e0 Tr\u00e8fle.<\/p>\n\n\n\n<p>Rappelons que 3<span style=\"color: #239817;\" class=\"stk-highlight\"><span style=\"color: #239817;\" class=\"stk-highlight\">&#x2663;<\/span><\/span> d\u00e9nie un soutien de trois cartes \u00e0 Pique, qui serait exprim\u00e9 soit par un saut \u00e0 4&#x2660; (17\u201319H), soit par un saut \u00e0 4<span style=\"color: #239817;\" class=\"stk-highlight\"><span style=\"color: #239817;\" class=\"stk-highlight\">&#x2663;<\/span><\/span> (19+H). Il s\u2019agit donc d\u2019une ench\u00e8re pr\u00e9cise dont l\u2019objectif principal est de demander un arr\u00eat \u00e0 Tr\u00e8fle pour jouer 3 sans-atout, sans emp\u00eacher Sud d\u2019orienter la s\u00e9quence vers un chelem si ses cartes s\u2019y pr\u00eatent.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">L\u2019ench\u00e8re responsable de l\u2019accident<\/h3>\n\n\n\n<p>4<span style=\"color: #239817;\" class=\"stk-highlight\"><span style=\"color: #239817;\" class=\"stk-highlight\">&#x2663;<\/span><\/span> sur 3<span style=\"color: #239817;\" class=\"stk-highlight\"><span style=\"color: #239817;\" class=\"stk-highlight\">&#x2663;<\/span><\/span>. Sud est le seul coupable.<\/p>\n\n\n\n<p><strong>La bonne s\u00e9quence :<\/strong><\/p>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-795473a\" data-block-id=\"795473a\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-795473a-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-1a3b91a\" data-v=\"4\" data-block-id=\"1a3b91a\"><style>@media screen and (min-width:690px){.stk-1a3b91a {flex:var(--stk-flex-grow, 1) 1 25% !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-1a3b91a-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-1a3b91a-inner-blocks\"><\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-7fc3437\" data-v=\"4\" data-block-id=\"7fc3437\"><style>@media screen and (min-width:690px){.stk-7fc3437 {flex:var(--stk-flex-grow, 1) 1 50% !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-7fc3437-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-7fc3437-inner-blocks\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"800\" src=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-3-11.png\" alt=\"\" class=\"wp-image-125057\" srcset=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-3-11.png 1000w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-3-11-300x240.png 300w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-3-11-768x614.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-d2b6988\" data-v=\"4\" data-block-id=\"d2b6988\"><style>@media screen and (min-width:690px){.stk-d2b6988 {flex:var(--stk-flex-grow, 1) 1 25% !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-d2b6988-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-d2b6988-inner-blocks\"><\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-spacer stk-block-spacer stk--no-padding stk-block stk-dd3f9d6\" data-block-id=\"dd3f9d6\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Probl\u00e8me 3 \u2191<\/h2>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-dac826d\" data-block-id=\"dac826d\"><style>.stk-dac826d .stk--block-align-dac826d{align-items:center !important;}<\/style><div class=\"stk-row stk-inner-blocks stk--block-align-dac826d stk-block-content stk-content-align stk-dac826d-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-81ad19b\" data-v=\"4\" data-block-id=\"81ad19b\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-81ad19b-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-81ad19b-inner-blocks\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"933\" height=\"1024\" src=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Diagram_-2-24-933x1024.png\" alt=\"\" class=\"wp-image-125058\" srcset=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Diagram_-2-24-933x1024.png 933w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Diagram_-2-24-273x300.png 273w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Diagram_-2-24-768x843.png 768w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Diagram_-2-24.png 1000w\" sizes=\"auto, (max-width: 933px) 100vw, 933px\" \/><\/figure>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-68c4d04\" data-v=\"4\" data-block-id=\"68c4d04\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-68c4d04-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-68c4d04-inner-blocks\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"916\" src=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-4-4.png\" alt=\"\" class=\"wp-image-125059\" srcset=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-4-4.png 1000w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-4-4-300x275.png 300w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-4-4-768x703.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Le constat<\/h3>\n\n\n\n<p>Une nouvelle fois, les deux joueurs, plus aguerris, \u00e9chappent \u00e0 la correctionnelle gr\u00e2ce \u00e0 un partage favorable des atouts. Tant mieux pour eux, mais le meilleur contrat est sans aucun doute 3 sans-atout.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Les arguments<\/h3>\n\n\n\n<p><strong>Nord<\/strong><br>\u00ab Je ne peux pas r\u00e9p\u00e9ter 3<span style=\"color: #ff0404;\" class=\"stk-highlight\">&#x2665;<\/span> sur 2SA : c\u2019est une ench\u00e8re non forcing, n\u00e9cessaire apr\u00e8s une ouverture banale de 10\u201311H justifi\u00e9e par une distribution 5-5 majeure. Je n\u2019ai pas non plus de raison d\u2019imposer l\u2019atout majeur en sautant \u00e0 4<span style=\"color: #ff0404;\" class=\"stk-highlight\">&#x2665;<\/span>. Il reste donc l\u2019ench\u00e8re de 3<span style=\"color: #ff8707;\" class=\"stk-highlight\">&#x2666;<\/span>, dont nous avons d\u00e9j\u00e0 parl\u00e9. \u00bb<\/p>\n\n\n\n<p><strong>Sud<\/strong><br>\u00ab Tu as raison. J\u2019avais compl\u00e8tement oubli\u00e9 cette ench\u00e8re conventionnelle pourtant bien utile. Mea culpa. \u00bb<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Le verdict<\/h3>\n\n\n\n<p>Nord a tout dit, ou presque, et Sud a reconnu son erreur. Cet emploi de la quatri\u00e8me couleur s\u2019utilise avec tous les bicolores 5-5 forcing de manche apr\u00e8s une deuxi\u00e8me ench\u00e8re du r\u00e9pondant \u00e0 2SA.<\/p>\n\n\n\n<p><strong>Un autre exemple pour clarifier la situation : avec un 5-5 rouge de quinze points<\/strong><\/p>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-fda71be\" data-block-id=\"fda71be\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-fda71be-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-be3388f\" data-v=\"4\" data-block-id=\"be3388f\"><style>@media screen and (min-width:690px){.stk-be3388f {flex:var(--stk-flex-grow, 1) 1 25% !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-be3388f-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-be3388f-inner-blocks\"><\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-0a9e892\" data-v=\"4\" data-block-id=\"0a9e892\"><style>@media screen and (min-width:690px){.stk-0a9e892 {flex:var(--stk-flex-grow, 1) 1 50% !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-0a9e892-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-0a9e892-inner-blocks\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"686\" src=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-6-2.png\" alt=\"\" class=\"wp-image-125061\" srcset=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-6-2.png 1000w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-6-2-300x206.png 300w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-6-2-768x527.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-9e99aa6\" data-v=\"4\" data-block-id=\"9e99aa6\"><style>@media screen and (min-width:690px){.stk-9e99aa6 {flex:var(--stk-flex-grow, 1) 1 25% !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-9e99aa6-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-9e99aa6-inner-blocks\"><\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Remarque<\/h3>\n\n\n\n<p>Cette convention peut \u00eatre \u00e9tendue aux bicolores 6-4 forcing de manche, par exemple avec le m\u00eame jeu de Nord en transformant un C\u0153ur en Pique.<\/p>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-f7d5dc1\" data-block-id=\"f7d5dc1\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-f7d5dc1-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-ca8b0f6\" data-v=\"4\" data-block-id=\"ca8b0f6\"><style>@media screen and (min-width:690px){.stk-ca8b0f6 {flex:var(--stk-flex-grow, 1) 1 25% !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-ca8b0f6-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-ca8b0f6-inner-blocks\"><\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-2263d8b\" data-v=\"4\" data-block-id=\"2263d8b\"><style>@media screen and (min-width:690px){.stk-2263d8b {flex:var(--stk-flex-grow, 1) 1 50% !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-2263d8b-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-2263d8b-inner-blocks\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"686\" src=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-7-2.png\" alt=\"\" class=\"wp-image-125063\" srcset=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-7-2.png 1000w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-7-2-300x206.png 300w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-7-2-768x527.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-32f3b98\" data-v=\"4\" data-block-id=\"32f3b98\"><style>@media screen and (min-width:690px){.stk-32f3b98 {flex:var(--stk-flex-grow, 1) 1 25% !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-32f3b98-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-32f3b98-inner-blocks\"><\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<p>Sur 3<span style=\"color: #ff8707;\" class=\"stk-highlight\">&#x2666;<\/span>, le r\u00e9pondant dit 3<span style=\"color: #ff0404;\" class=\"stk-highlight\">&#x2665;<\/span> avec trois cartes \u00e0 C\u0153ur. Puis, sur 3&#x2660; de l\u2019ouvreur, qui montre ainsi sa distribution 6-4, il dit 4&#x2660; avec deux cartes et 3SA avec un singleton \u00e0 Pique.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">L\u2019ench\u00e8re responsable de l\u2019accident<\/h3>\n\n\n\n<p>4<span style=\"color: #ff8707;\" class=\"stk-highlight\">&#x2666;<\/span> sur 3<span style=\"color: #ff8707;\" class=\"stk-highlight\">&#x2666;<\/span>. Et c\u2019est encore le r\u00e9pondant, Sud, le seul coupable.<\/p>\n\n\n\n<p><strong>La bonne s\u00e9quence :<\/strong><\/p>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-97aed8c\" data-block-id=\"97aed8c\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-97aed8c-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-668d175\" data-v=\"4\" data-block-id=\"668d175\"><style>@media screen and (min-width:690px){.stk-668d175 {flex:var(--stk-flex-grow, 1) 1 25% !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-668d175-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-668d175-inner-blocks\"><\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-4b3ee95\" data-v=\"4\" data-block-id=\"4b3ee95\"><style>@media screen and (min-width:690px){.stk-4b3ee95 {flex:var(--stk-flex-grow, 1) 1 50% !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-4b3ee95-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-4b3ee95-inner-blocks\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"800\" src=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-5-3.png\" alt=\"\" class=\"wp-image-125060\" srcset=\"https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-5-3.png 1000w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-5-3-300x240.png 300w, https:\/\/funbridge.com\/blog\/wp-content\/uploads\/Bids_-5-3-768x614.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-350ed62\" data-v=\"4\" data-block-id=\"350ed62\"><style>@media screen and (min-width:690px){.stk-350ed62 {flex:var(--stk-flex-grow, 1) 1 25% !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-350ed62-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-350ed62-inner-blocks\"><\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-spacer stk-block-spacer stk--no-padding stk-block stk-e8d5a05\" data-block-id=\"e8d5a05\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Qu\u2019avez-vous pens\u00e9 de cet article ?<\/strong><\/h2>\n\n\n\n<p>Partagez votre avis dans&nbsp;<em>la Section Commentaires&nbsp;<\/em>ci-dessous !<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trois situations r\u00e9elles, trois accidents, et un verdict clair \u00e0 chaque fois.<\/p>\n","protected":false},"author":26,"featured_media":103606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[14921],"tags":[14441],"access":[13324,13325],"class_list":["post-125038","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cours-exercices-bridge","tag-bridge-lesson","access-premium","access-premium-plus"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":5}},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - 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