<div class="user_solution"><p class="MsoNormal"><span lang="EN-US" style="font-size: 13pt;">1.Qd2? – zz, 1...Kf6<span style="color: red;">(a) </span>2.Qh6#, 1...Kd7!<o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size: 13pt;">1.Kd4? – 2. Qf5#<span style="color: blue;">(B)</span>, 1...Kf6<span style="color: red;">(a) </span>2.Qg6#, 1...ed! <o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size: 13pt;">1.Qf2? – 2.Bg4<span style="color: red;">(A)</span>, Qf5#<span style="color: blue;">(B)</span>, 1...ed<span style="color: blue;">(b) </span>2.Qf7#, 1...Kd7!(c) <o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size: 13pt;">1.Qc3? – 2.Bg4#<span style="color: red;">(A)</span>, 1...Kd7(c) 2.Qc8#, 1...ed!<span style="color: blue;">(b) </span><o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size: 13pt;">1.Qc5! – 2.Qf5# <span style="color: blue;">(B)</span>, 1...Kf6<span style="color: red;">(a) </span>2.Qe5#, 1...ed<span style="color: blue;">(b) </span>2.Q:d6#, 1...Kd7 2.Qc8# <o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size: 13pt;"> </span></p> <span style="font-size: 13pt; font-family: 'Times New Roman', serif;">Тема</span><span style="font-size: 13pt; font-family: 'Times New Roman', serif;"> </span><span style="font-size: 13pt; font-family: 'Times New Roman', serif;">Барнса</span><span lang="EN-US" style="font-size: 13pt; font-family: 'Times New Roman', serif;">, </span><span style="font-size: 13pt; font-family: 'Times New Roman', serif;">перемена</span><span style="font-size: 13pt; font-family: 'Times New Roman', serif;"> </span><span style="font-size: 13pt; font-family: 'Times New Roman', serif;">матов</span><span lang="EN-US" style="font-size: 13pt; font-family: 'Times New Roman', serif;">, </span><span style="font-size: 13pt; font-family: 'Times New Roman', serif;">чередование</span><span style="font-size: 13pt; font-family: 'Times New Roman', serif;"> </span><span style="font-size: 13pt; font-family: 'Times New Roman', serif;">защита</span><span lang="EN-US" style="font-size: 13pt; font-family: 'Times New Roman', serif;">-</span><span style="font-size: 13pt; font-family: 'Times New Roman', serif;">опровержение</span></div>