Something Critical. An improvement.

ser-h=13

Circe

1.Kh1-g1 2.Kg1-f1 3.Kf1-e2 4.Ke2-d3 5.Kd3-c4 6.Kc4-c5 7.Kc5-d6 8.Kd6-e7 9.Ke7-f7 10.Kf7-g8 11.Kg8-h7 12.Kh7*h6[+wBc1] 13.Kh6-h5 Bc1*g5[+bPg7] =