<div> <p>1. Kd3? Kc1 2. Se2+ Kb1 3. S4c3+ Kb2/Ka1 4. Sd1(+) Kxa2,Ka1? 5. Kc2! leading to the shorter #8</p><p>4. ... Kb1! 5. Kc3 Ka1,Kxa2 6. Kc2 etc.</p><p>2. ... Kb2!</p><p><br /></p><p><b>1. Kb3!</b> Kc1 2. Se2+ Kb1 3. S4c3+ Ka1 4. Sd1 Kb1 5. Kc3 Ka1 6. Kc2 Kxa2 7. Sd4 Ka1 8. Sb3+ Ka2 9. Sc3#</p><p>5. ... Kxa2 6. Kc2 Ka1 7. Sd4 Ka2! 8. Sc3+ Ka1 9. Sb3#</p><p><br /></p><p>Keywords: White correction, square vacation, switchback (KSSk,KSSk), selfblock, remote selfblock, sacrifice of white piece, passive sacrifice, corner mate</p><p><br /></p></div><br />