<div class='user_solution'><p style="margin-bottom: 0cm;"><u>Try :</u></p> <p style="margin-bottom: 0cm;"><br /> </p> <p style="margin-bottom: 0cm;">1. Bxb4 ? Blocus.</p> <p style="margin-bottom: 0cm;">1.....Kc2 ? 2. Re3 ! Kd1 3. Bb3 #</p> <p style="margin-bottom: 0cm;">1.....Kd4 ! 2. Bb3 Kd3 and mate in 2</p> <p style="margin-bottom: 0cm;"><br /> </p> <p style="margin-bottom: 0cm;"><u>Solution :</u></p> <p style="margin-bottom: 0cm;"><br /> </p> <p style="margin-bottom: 0cm;"><b>1. Rd8 ! </b>Blocus</p> <p style="margin-bottom: 0cm;"><br /> </p> <p style="margin-bottom: 0cm;"> Thematic variants :</p> <p style="margin-bottom: 0cm;"><br /> </p> <p style="margin-bottom: 0cm;"><b>1....Kd4 2. Bb3 discovery + ! Ke4 3. Bc2 #</b></p> <p style="margin-bottom: 0cm;"><b>1....Kd2 2. Bxf3 discovery + ! Kc2 3. Bd1 # </b>pure mate</p> <p style="margin-bottom: 0cm;"> <b>2....Ke1 3. Rd1 # </b>pure mate (not thematic)</p> <p style="margin-bottom: 0cm;"><b>1....b3 2. Bxf3 discovery + ! Kc4 3. Be2 # </b>selfblock pawn b3</p> <p style="margin-bottom: 0cm;"> </p> <p style="margin-bottom: 0cm;"> Not thematic variants :</p> <p style="margin-bottom: 0cm;"><br /> </p> <p style="margin-bottom: 0cm;"><b>1....Kc2 2. Be6 ! b3 3. Bxf5 # </b>selfblock pawn b3<b> </b> </p> <p style="margin-bottom: 0cm;"><b>1....Ke2 2. Bc4+ Ke1 3. Bxb4 #</b></p> <p style="margin-bottom: 0cm;"><br /> </p> <p style="margin-bottom: 0cm;"><br /> </p> <p style="margin-bottom: 0cm;"><br /> </p> <p style="margin-bottom: 0cm;"><u>Commentary :</u></p> <p style="margin-bottom: 0cm;"><br /> </p> <p style="margin-bottom: 0cm;"> The same white piece gives a discovery check, leaving a flight square for black King </p> <p style="margin-bottom: 0cm;"> and mates on this square.</p> <p style="margin-bottom: 0cm;"> Three thematic variants and two not thematic.</p> <p style="margin-bottom: 0cm;"> Six distincts mates. Meredith. </p> <p style="margin-bottom: 0cm;"><br /> </p> <p style="margin-bottom: 0cm;"><br /> </p></div>