8.. Kg2 Qxf1+
9.. Kxf1 Qb1+
10.. Kxf2 Nxd3+
11.. Kg2 Qh1+
12.. Kxh1 Nf3+
13.. Kg2 Black doesn't have more checks to give
8.. Kg2 Qxf1+
9.. Kxf1 Qb1+
10.. Kxf2 Nxd3+
11.. Kg2 Qh1+
12.. Kxh1 Nf3+
13.. Kg2 Black doesn't have more checks to give
RE: Extra tough Christmas chess riddle (#69). / Knacknuss-Weihnachtsschachrätsel (#69).