tag:blogger.com,1999:blog-38193052.post5130199947933401248..comments2024-03-20T08:57:17.447-03:00Comments on Jornalheiros: Xadrez - Mate em 2! (A. G. Meschick)PC Filhohttp://www.blogger.com/profile/16547063456626761789noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-38193052.post-67533170036523285472017-03-22T20:47:34.497-03:002017-03-22T20:47:34.497-03:00My original solution:
1. Bxg5!! is the key move, ...My original solution:<br /><br /><b>1. Bxg5!!</b> is the key move, threatening both 2. Be7# and 2. Ke3#<br />(Note that this key move leaves both the Rook and the Queen to be taken, but it doesn't matter!)<br />Well, it is impossible to stop both threats:<br />1. ... f4 or 1. ... Bf4 or 1. ... Rc5 stop 2. Ke3 but don't stop 2. Be7#<br />1. ... Be5+ stops 2. Be7 but doesn't stop 2. Ke3#<br />1. ... Rc4+ 2. Kxc4#<br /><br />PS: as noted by Jake, there are two other solutions:<br /><b>1. Ne7!!</b> (possible continuation: 1. ... Bxh2 2. Nc8#)<br /><b>1. Kd3!!</b> (possible continuation: 1. ... Bxh2 2. Kc2#)PC Filhohttps://www.blogger.com/profile/16547063456626761789noreply@blogger.comtag:blogger.com,1999:blog-38193052.post-41751228187407250782017-03-22T20:42:42.155-03:002017-03-22T20:42:42.155-03:00I have verified the archives of Jornal do Brasil. ...I have verified the archives of Jornal do Brasil. The only stipulation was <i>"White to play and give checkmate in 2 moves"</i>.<br /><br />Indeed, the problem is cooked. According to the same Jornal do Brasil one week later, the intended solution was <b>1. Kd3!!</b>. However, there are two other perfect solutions: <b>1. Bxg5!!</b> and <b>1. Ne7!!</b>.<br /><br />In defense of the composer:<br />- he created the problem in far 1896, of course with no computer aid at all.<br />- the problem has its merits and beauties. All three possible key moves leave both the Rook and the Queen to be taken, and this is nice!PC Filhohttps://www.blogger.com/profile/16547063456626761789noreply@blogger.comtag:blogger.com,1999:blog-38193052.post-85346963851064601802017-03-22T19:36:53.345-03:002017-03-22T19:36:53.345-03:00The only key move I had found was 1. Bxg5!!. I wi...The only key move I had found was <b>1. Bxg5!!</b>. I will verify the original stipulation soon, in the archives of Jornal do Brasil.PC Filhohttps://www.blogger.com/profile/16547063456626761789noreply@blogger.comtag:blogger.com,1999:blog-38193052.post-15561793175350798352017-03-22T19:29:02.875-03:002017-03-22T19:29:02.875-03:00This problem actually has three distinct keys.
1 ...This problem actually has three distinct keys.<br /><br /><b>1 Se7!</b> (threat Sc8) <b>1 ... Rc4+ 2 Kxc4; 1 ... Be5+ 2 Qxe5</b><br /><b>1 Kd3</b> (threat Kc2/Rd4) <b>1 ... Rxc3+ 2 Kxc3; 1 ... Be2+ 2 Kxe2</b><br /><b>1 Bxg5!</b> (threats Ke3/Be7) <b>1 ... Rc4+ 2 Kxc4</b><br /><br />The solutions do have stuff in common, so "3 solutions" might have been originally stipulated. If it wasn't, then the problem's cooked.jrh150482https://www.blogger.com/profile/10502831081969372299noreply@blogger.comtag:blogger.com,1999:blog-38193052.post-42927455766200293172017-03-18T23:39:43.600-03:002017-03-18T23:39:43.600-03:00About the creator of this problem: it is the Brazi...<i>About the creator of this problem: it is the Brazilian teacher <b>Augusto Guilherme Meschick</b>.<br /><br />Born on October 29, 1868, he taught German language in Pedro II High School and some private institutions in Rio de Janeiro.<br /><br />Teacher Meschick was a chess enthusiast, composed hundreds of problems, and wrote chess sections in some Rio de Janeiro daily newspapers.<br /><br />He passed away on January 29, 1921, leaving widow Maria Josephina da Silveira Meschick, and two daughters (Dora and Elza).<br /><br />(Some of the above information was taken from his obituary in the newspaper "Correio da Manhã" from Rio, edition of January 30, 1921.)</i>PC Filhohttps://www.blogger.com/profile/16547063456626761789noreply@blogger.comtag:blogger.com,1999:blog-38193052.post-994428937184978892017-03-18T23:22:56.262-03:002017-03-18T23:22:56.262-03:00Sobre o criador deste problema, trata-se do profes...Sobre o criador deste problema, trata-se do professor brasileiro <b>Augusto Guilherme Meschick</b>.<br /><br />Nascido em 29/10/1868, ele lecionou língua alemã no Colégio Pedro II e em algumas escolas particulares do Rio de Janeiro (Colégio Rezende, Externato Aquino, Curso Normal de Preparatórios, etc).<br /><br />O professor Meschick era um entusiasta do xadrez, compôs centenas de problemas, e escreveu seções de xadrez em alguns jornais do Rio de Janeiro.<br /><br />Faleceu no dia 29/01/1921, deixando a viúva Maria Josephina da Silveira Meschick, e duas filhas (Dora e Elza).<br /><br />(Algumas das informações acima foram retiradas de seu obituário no Correio da Manhã carioca, edição do dia 30/01/1921.)PC Filhohttps://www.blogger.com/profile/16547063456626761789noreply@blogger.com