Warning: INSERT command denied to user 'myampaipsi'@'localhost' for table 'watchdog' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:62:\"Non-static method view::load() should not be called statically\";s:5:\"%file\";s:63:\"/usr/home/ampaipsi.cat/web/sites/all/modules/views/views.module\";s:5:\"%line\";i:906;}', 3, '', 'http://ampaipsi.cat/node/185', '', '3.227.233.6', 1566402453) in /usr/home/ampaipsi.cat/web/includes/database.mysql.inc on line 135 Warning: INSERT command denied to user 'myampaipsi'@'localhost' for table 'watchdog' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:134:\"Declaration of views_handler_filter::options_validate() should be compatible with views_handler::options_validate($form, &$form_state)\";s:5:\"%file\";s:84:\"/usr/home/ampaipsi.cat/web/sites/all/modules/views/handlers/views_handler_filter.inc\";s:5:\"%line\";i:0;}', 3, '', 'http://ampaipsi.cat/node/185', '', '3.227.233.6', 1566402453) in /usr/home/ampaipsi.cat/web/includes/database.mysql.inc on line 135 Warning: INSERT command denied to user 'myampaipsi'@'localhost' for table 'watchdog' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:130:\"Declaration of views_handler_filter::options_submit() should be compatible with views_handler::options_submit($form, &$form_state)\";s:5:\"%file\";s:84:\"/usr/home/ampaipsi.cat/web/sites/all/modules/views/handlers/views_handler_filter.inc\";s:5:\"%line\";i:0;}', 3, '', 'http://ampaipsi.cat/node/185', '', '3.227.233.6', 1566402453) in /usr/home/ampaipsi.cat/web/includes/database.mysql.inc on line 135 Warning: INSERT command denied to user 'myampaipsi'@'localhost' for table 'watchdog' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:102:\"Declaration of views_plugin_style_default::options() should be compatible with views_object::options()\";s:5:\"%file\";s:89:\"/usr/home/ampaipsi.cat/web/sites/all/modules/views/plugins/views_plugin_style_default.inc\";s:5:\"%line\";i:0;}', 3, '', 'http://ampaipsi.cat/node/185', '', '3.227.233.6', 1566402453) in /usr/home/ampaipsi.cat/web/includes/database.mysql.inc on line 135 Warning: INSERT command denied to user 'myampaipsi'@'localhost' for table 'watchdog' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:130:\"Declaration of views_plugin_row::options_validate() should be compatible with views_plugin::options_validate(&$form, &$form_state)\";s:5:\"%file\";s:79:\"/usr/home/ampaipsi.cat/web/sites/all/modules/views/plugins/views_plugin_row.inc\";s:5:\"%line\";i:0;}', 3, '', 'http://ampaipsi.cat/node/185', '', '3.227.233.6', 1566402453) in /usr/home/ampaipsi.cat/web/includes/database.mysql.inc on line 135 Warning: INSERT command denied to user 'myampaipsi'@'localhost' for table 'watchdog' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:126:\"Declaration of views_plugin_row::options_submit() should be compatible with views_plugin::options_submit(&$form, &$form_state)\";s:5:\"%file\";s:79:\"/usr/home/ampaipsi.cat/web/sites/all/modules/views/plugins/views_plugin_row.inc\";s:5:\"%line\";i:0;}', 3, '', 'http://ampaipsi.cat/node/185', '', '3.227.233.6', 1566402453) in /usr/home/ampaipsi.cat/web/includes/database.mysql.inc on line 135 Warning: INSERT command denied to user 'myampaipsi'@'localhost' for table 'watchdog' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:62:\"Non-static method view::load() should not be called statically\";s:5:\"%file\";s:63:\"/usr/home/ampaipsi.cat/web/sites/all/modules/views/views.module\";s:5:\"%line\";i:906;}', 3, '', 'http://ampaipsi.cat/node/185', '', '3.227.233.6', 1566402453) in /usr/home/ampaipsi.cat/web/includes/database.mysql.inc on line 135 Warning: INSERT command denied to user 'myampaipsi'@'localhost' for table 'watchdog' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:62:\"Non-static method view::load() should not be called statically\";s:5:\"%file\";s:63:\"/usr/home/ampaipsi.cat/web/sites/all/modules/views/views.module\";s:5:\"%line\";i:906;}', 3, '', 'http://ampaipsi.cat/node/185', '', '3.227.233.6', 1566402453) in /usr/home/ampaipsi.cat/web/includes/database.mysql.inc on line 135 Warning: INSERT command denied to user 'myampaipsi'@'localhost' for table 'watchdog' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:14:\"strict warning\";s:8:\"%message\";s:62:\"Non-static method view::load() should not be called statically\";s:5:\"%file\";s:63:\"/usr/home/ampaipsi.cat/web/sites/all/modules/views/views.module\";s:5:\"%line\";i:906;}', 3, '', 'http://ampaipsi.cat/node/185', '', '3.227.233.6', 1566402453) in /usr/home/ampaipsi.cat/web/includes/database.mysql.inc on line 135 Problema d'escacs. Abril 2010 | AMPA Ipsi

You are hereProblema d'escacs. Abril 2010

Problema d'escacs. Abril 2010


Juguen les blanquesJuguen les blanques
El semàfor (advertències sobre la regla del quadrat).

Al principi comptàvem amb els dits: un, dos, tres, quatre i el peó corona. Després algú va inventar la regla del quadrat - o serien molts al mateix temps ? - i el tema ha adquirit caràcter científic.

El jugador traça mentalment el polígon corresponent i sap si el seu rei arriba o no a temps a parar determinat peó allunyat. De totes maneres, tot i que la regla del quadrat és universal i irrefutable en la seva essència, la presencia de peons al taulell, tant de propis com de contraris, pot condicionar l'efectivitat del mètode.

Què podem dir de la següent posició?

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Warning: INSERT command denied to user 'myampaipsi'@'localhost' for table 'watchdog' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:12:\"user warning\";s:8:\"%message\";s:371:\"INSERT command denied to user 'myampaipsi'@'localhost' for table 'accesslog'\nquery: INSERT INTO accesslog (title, path, url, hostname, uid, sid, timer, timestamp) values('Problema d'escacs. Abril 2010', 'node/185', '', '3.227.233.6', 0, '40tjrplr7mcu5ts31uffqvrca7', 58, 1566402453)\";s:5:\"%file\";s:63:\"/usr/home/ampaipsi.cat/web/modules/statistics/statistics.module\";s:5:\"%line\";i:63;}', 3, '' in /usr/home/ampaipsi.cat/web/includes/database.mysql.inc on line 135