Consider all major pieces in king safety

Consider all major pieces in king safety

seirawan STC
LLR: 2.97 (-2.94,2.94) [0.00,10.00]
Total: 574 W: 247 L: 160 D: 167
http://35.161.250.236:6543/tests/view/5d49ed306e23db34f4206d5b

seirawan LTC
LLR: 2.95 (-2.94,2.94) [0.00,10.00]
Total: 992 W: 396 L: 304 D: 292
http://35.161.250.236:6543/tests/view/5d4a6ace6e23db34f4206d5e

capablanca STC
LLR: 2.96 (-2.94,2.94) [0.00,10.00]
Total: 458 W: 220 L: 131 D: 107
http://35.161.250.236:6543/tests/view/5d4d4a8c6e23db34f4206d62

capablanca LTC
LLR: 2.95 (-2.94,2.94) [0.00,10.00]
Total: 362 W: 191 L: 101 D: 70
http://35.161.250.236:6543/tests/view/5d4d6faf6e23db34f4206d67