tag:blogger.com,1999:blog-38193052.post6353921329569844918..comments2024-03-20T08:57:17.447-03:00Comments on Jornalheiros: Xadrez - Mate em 3! (Denis Saunders)PC Filhohttp://www.blogger.com/profile/16547063456626761789noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-38193052.post-46837656888118197082013-12-31T16:52:55.486-02:002013-12-31T16:52:55.486-02:00This one was definitely a tough puzzle. This unusu...This one was definitely a tough puzzle. This unusual problem contains an "inset two-mover".<br /><br />The key move is <b>1. Qb8!!</b>, threatening <b>2. Qg3!!</b> followed by <b>3. Qd3#</b>. For example:<br />1. Qb8!! Bxa5<br />2. Qg3!! Nd6<br />3. Qd3#<br /><br />Black seems to have an adequate defence with <b>1. … h4</b>, but this is followed by the startling move <b>2. Nb5!!</b>, placing Black in zugzwang. The variations are then:<br /><br />1. Qb8!! h4<br />2. Nb5!! Kxb5+<br />3. Rxc5#<br />(a double-pin checkmate!!!)<br /><br />1. Qb8!! h4<br />2. Nb5!! Bxb5<br />3. Qf4#<br /><br />1. Qb8!! h4<br />2. Nb5!! Bc3 (or Bd2, or Be1, or Bxa5)<br />3. Nxa3#<br /><br />1. Qb8!! h4<br />2. Nb5!! Qxc6<br />3. Rxb4#<br /><br />1. Qb8!! h4<br />2. Nb5!! Nxa5 (or Nd6, or Nd8)<br />3. N(x)d6#<br /><br />It can be seen that <b>1. Qb8!!</b> ambushes the White Queen behind the Black Knight, so that the Knight is pinned after 2. … Kxb5+.<br /><br />What an artwork!PC Filhohttps://www.blogger.com/profile/16547063456626761789noreply@blogger.com