{"id":2772,"date":"2025-09-19T14:53:54","date_gmt":"2025-09-19T13:53:54","guid":{"rendered":"https:\/\/eurekamaths.fr\/wpe\/?p=2772"},"modified":"2026-04-27T09:17:16","modified_gmt":"2026-04-27T08:17:16","slug":"enigmes-du-lundi-2025-26","status":"publish","type":"post","link":"https:\/\/eurekamaths.fr\/wpe\/index.php\/2025\/09\/19\/enigmes-du-lundi-2025-26\/","title":{"rendered":"\u00c9nigmes du lundi 2025-26"},"content":{"rendered":"<p>Chaque lundi, Eur\u00eakamaths publie sur son compte <a href=\"https:\/\/x.com\/DefiEurekaMaths\">X-Twitter<\/a> et sur <a href=\"https:\/\/bsky.app\/profile\/did:plc:ihw4tmevcvqwrtjx2kjike5s\">Bluesky<\/a> une \u00e9nigme \u00e0 r\u00e9soudre dans l&rsquo;esprit du concours : la classe doit se mettre d&rsquo;accord pour proposer une unique r\u00e9ponse.<\/p>\n<p><!--more--><\/p>\n<h3>\u00c9nigme du lundi 27 avril<\/h3>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3233\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-29-pause-dejeuner.jpg\" alt=\"\" width=\"1034\" height=\"454\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-29-pause-dejeuner.jpg 1034w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-29-pause-dejeuner-300x132.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-29-pause-dejeuner-1024x450.jpg 1024w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-29-pause-dejeuner-768x337.jpg 768w\" sizes=\"auto, (max-width: 1034px) 100vw, 1034px\" \/><\/h3>\n<h3>\u00c9nigme du lundi 20 avril<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3232\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-28-erreur-de-calcul.jpg\" alt=\"\" width=\"1031\" height=\"455\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-28-erreur-de-calcul.jpg 1031w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-28-erreur-de-calcul-300x132.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-28-erreur-de-calcul-1024x452.jpg 1024w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-28-erreur-de-calcul-768x339.jpg 768w\" sizes=\"auto, (max-width: 1031px) 100vw, 1031px\" \/><\/p>\n<h3>\u00c9nigme du lundi 30 mars<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-3231 size-full\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-27-anniversaire.jpg\" alt=\"\" width=\"1034\" height=\"454\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-27-anniversaire.jpg 1034w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-27-anniversaire-300x132.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-27-anniversaire-1024x450.jpg 1024w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-27-anniversaire-768x337.jpg 768w\" sizes=\"auto, (max-width: 1034px) 100vw, 1034px\" \/><\/p>\n<h3>\u00c9nigme du lundi 23 mars<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-3230 size-full\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-26-Jules-et-ses-copains.jpg\" alt=\"\" width=\"1035\" height=\"461\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-26-Jules-et-ses-copains.jpg 1035w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-26-Jules-et-ses-copains-300x134.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-26-Jules-et-ses-copains-1024x456.jpg 1024w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-26-Jules-et-ses-copains-768x342.jpg 768w\" sizes=\"auto, (max-width: 1035px) 100vw, 1035px\" \/><\/p>\n<h3>\u00c9nigme du lundi 9 mars<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3148\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-20-les-papillotes.jpg\" alt=\"\" width=\"1004\" height=\"442\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-20-les-papillotes.jpg 1004w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-20-les-papillotes-300x132.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-20-les-papillotes-768x338.jpg 768w\" sizes=\"auto, (max-width: 1004px) 100vw, 1004px\" \/><\/p>\n<h3>\u00c9nigme du lundi 2 mars<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-3133 size-full\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-19-sortie-culturelle.jpg\" alt=\"\" width=\"1004\" height=\"438\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-19-sortie-culturelle.jpg 1004w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-19-sortie-culturelle-300x131.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-19-sortie-culturelle-768x335.jpg 768w\" sizes=\"auto, (max-width: 1004px) 100vw, 1004px\" \/><\/p>\n<h3>\u00c9nigme du lundi 23 f\u00e9vrier<\/h3>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3026\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2026\/01\/2026-Enigme-18-le-carre.jpg\" alt=\"\" width=\"1004\" height=\"444\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2026\/01\/2026-Enigme-18-le-carre.jpg 1004w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2026\/01\/2026-Enigme-18-le-carre-300x133.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2026\/01\/2026-Enigme-18-le-carre-768x340.jpg 768w\" sizes=\"auto, (max-width: 1004px) 100vw, 1004px\" \/><\/h3>\n<h3>\u00c9nigme du lundi 2 f\u00e9vrier<\/h3>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3025\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2026\/01\/2026-Enigme-17-la-buvette.jpg\" alt=\"\" width=\"1004\" height=\"444\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2026\/01\/2026-Enigme-17-la-buvette.jpg 1004w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2026\/01\/2026-Enigme-17-la-buvette-300x133.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2026\/01\/2026-Enigme-17-la-buvette-768x340.jpg 768w\" sizes=\"auto, (max-width: 1004px) 100vw, 1004px\" \/><\/h3>\n<h3><\/h3>\n<h3>\u00c9nigme du lundi 26 janvier<\/h3>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3024\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2026\/01\/2026-Enigme-16-le-roman.jpg\" alt=\"\" width=\"1004\" height=\"441\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2026\/01\/2026-Enigme-16-le-roman.jpg 1004w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2026\/01\/2026-Enigme-16-le-roman-300x132.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2026\/01\/2026-Enigme-16-le-roman-768x337.jpg 768w\" sizes=\"auto, (max-width: 1004px) 100vw, 1004px\" \/><\/h3>\n<h3>\u00c9nigme du lundi 19 janvier<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3000\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-15-lerreur-de-calcul.jpg\" alt=\"\" width=\"1024\" height=\"452\" border=\"2\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-15-lerreur-de-calcul.jpg 1024w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-15-lerreur-de-calcul-300x132.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-15-lerreur-de-calcul-768x339.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<h3>\u00c9nigme du lundi 12 janvier<\/h3>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2971\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-14-quel-est-mon-age.jpg\" alt=\"\" width=\"1004\" height=\"442\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-14-quel-est-mon-age.jpg 1004w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-14-quel-est-mon-age-300x132.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-14-quel-est-mon-age-768x338.jpg 768w\" sizes=\"auto, (max-width: 1004px) 100vw, 1004px\" \/><\/h3>\n<h3>\u00c9nigme du lundi 5 janvier<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2959\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-13-le-slalom.jpg\" alt=\"\" width=\"1000\" height=\"438\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-13-le-slalom.jpg 1000w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-13-le-slalom-300x131.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-13-le-slalom-768x336.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h3>\u00c9nigme du lundi 15 d\u00e9cembre<\/h3>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2942\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-12-le-televiseur.jpg\" alt=\"\" width=\"1004\" height=\"443\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-12-le-televiseur.jpg 1004w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-12-le-televiseur-300x132.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-12-le-televiseur-768x339.jpg 768w\" sizes=\"auto, (max-width: 1004px) 100vw, 1004px\" \/><\/h3>\n<h3>\u00c9nigme du lundi 8 d\u00e9cembre<\/h3>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2940\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-11-devinette.jpg\" alt=\"\" width=\"1004\" height=\"441\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-11-devinette.jpg 1004w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-11-devinette-300x132.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-11-devinette-768x337.jpg 768w\" sizes=\"auto, (max-width: 1004px) 100vw, 1004px\" \/><\/h3>\n<h3>\u00c9nigme du lundi 1er d\u00e9cembre<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2928\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-10-lordinateur.jpg\" alt=\"\" width=\"1030\" height=\"452\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-10-lordinateur.jpg 1030w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-10-lordinateur-300x132.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-10-lordinateur-1024x449.jpg 1024w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-10-lordinateur-768x337.jpg 768w\" sizes=\"auto, (max-width: 1030px) 100vw, 1030px\" \/><\/p>\n<h3>\u00c9nigme du lundi 24 novembre<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2909\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-09-cest-tout-neuf.jpg\" alt=\"\" width=\"1032\" height=\"450\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-09-cest-tout-neuf.jpg 1032w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-09-cest-tout-neuf-300x131.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-09-cest-tout-neuf-1024x447.jpg 1024w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-09-cest-tout-neuf-768x335.jpg 768w\" sizes=\"auto, (max-width: 1032px) 100vw, 1032px\" \/><\/p>\n<h3>\u00c9nigme du lundi 17 novembre<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2905\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-08-suite-logique.jpg\" alt=\"\" width=\"1034\" height=\"454\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-08-suite-logique.jpg 1034w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-08-suite-logique-300x132.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-08-suite-logique-1024x450.jpg 1024w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-08-suite-logique-768x337.jpg 768w\" sizes=\"auto, (max-width: 1034px) 100vw, 1034px\" \/><\/p>\n<h3>\u00c9nigme du lundi 10 novembre<\/h3>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2904\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-07-Le-cube-eclate.jpg\" alt=\"\" width=\"1028\" height=\"454\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-07-Le-cube-eclate.jpg 1028w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-07-Le-cube-eclate-300x132.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-07-Le-cube-eclate-1024x452.jpg 1024w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-07-Le-cube-eclate-768x339.jpg 768w\" sizes=\"auto, (max-width: 1028px) 100vw, 1028px\" \/><\/h3>\n<h3>\u00c9nigme du lundi 3 novembre<\/h3>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2896\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-06-Le-restaurant.jpg\" alt=\"\" width=\"1028\" height=\"452\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-06-Le-restaurant.jpg 1028w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-06-Le-restaurant-300x132.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-06-Le-restaurant-1024x450.jpg 1024w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-06-Le-restaurant-768x338.jpg 768w\" sizes=\"auto, (max-width: 1028px) 100vw, 1028px\" \/><\/h3>\n<h3>\u00c9nigme du lundi 13 octobre<\/h3>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2825\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-05-La-course.jpg\" alt=\"\" width=\"1030\" height=\"452\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-05-La-course.jpg 1030w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-05-La-course-300x132.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-05-La-course-1024x449.jpg 1024w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-05-La-course-768x337.jpg 768w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-05-La-course-50x22.jpg 50w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-05-La-course-100x44.jpg 100w\" sizes=\"auto, (max-width: 1030px) 100vw, 1030px\" \/><\/h3>\n<h3>\u00c9nigme du lundi 6 octobre<\/h3>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2804\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-04-Somme-et-produit.jpg\" alt=\"\" width=\"1026\" height=\"452\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-04-Somme-et-produit.jpg 1026w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-04-Somme-et-produit-300x132.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-04-Somme-et-produit-1024x451.jpg 1024w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-04-Somme-et-produit-768x338.jpg 768w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-04-Somme-et-produit-50x22.jpg 50w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-04-Somme-et-produit-100x44.jpg 100w\" sizes=\"auto, (max-width: 1026px) 100vw, 1026px\" \/><\/h3>\n<h3>\u00c9nigme du lundi 29 septembre<\/h3>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2803\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-03-Lanniversaire.jpg\" alt=\"\" width=\"1032\" height=\"454\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-03-Lanniversaire.jpg 1032w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-03-Lanniversaire-300x132.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-03-Lanniversaire-1024x450.jpg 1024w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-03-Lanniversaire-768x338.jpg 768w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-03-Lanniversaire-50x22.jpg 50w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-03-Lanniversaire-100x44.jpg 100w\" sizes=\"auto, (max-width: 1032px) 100vw, 1032px\" \/><\/h3>\n<h3>\u00c9nigme du lundi 22 septembre<\/h3>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2777\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-02-Le-nombre-mysterieux.jpg\" alt=\"\" width=\"1024\" height=\"448\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-02-Le-nombre-mysterieux.jpg 1024w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-02-Le-nombre-mysterieux-300x131.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-02-Le-nombre-mysterieux-768x336.jpg 768w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-02-Le-nombre-mysterieux-50x22.jpg 50w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-02-Le-nombre-mysterieux-100x44.jpg 100w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/h3>\n<h3>\u00c9nigme du lundi 15 septembre<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2775\" src=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-1-Les-chataignes.jpg\" alt=\"\" width=\"1030\" height=\"452\" srcset=\"https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-1-Les-chataignes.jpg 1030w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-1-Les-chataignes-300x132.jpg 300w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-1-Les-chataignes-1024x449.jpg 1024w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-1-Les-chataignes-768x337.jpg 768w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-1-Les-chataignes-50x22.jpg 50w, https:\/\/eurekamaths.fr\/wpe\/wp-content\/uploads\/2025\/09\/2026-Enigme-1-Les-chataignes-100x44.jpg 100w\" sizes=\"auto, (max-width: 1030px) 100vw, 1030px\" \/><\/p>\n<h3><\/h3>\n","protected":false},"excerpt":{"rendered":"<p>Chaque lundi, Eur\u00eakamaths publie sur son compte X-Twitter et sur Bluesky une \u00e9nigme \u00e0 r\u00e9soudre dans l&rsquo;esprit du concours : la classe doit se mettre d&rsquo;accord pour proposer une unique r\u00e9ponse.<\/p>\n","protected":false},"author":4721,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4,11],"tags":[],"class_list":["post-2772","post","type-post","status-publish","format-standard","hentry","category-actualites","category-les-enigmes-du-lundi"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"publishpress_future_action":{"enabled":false,"date":"2026-05-09 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