heights of ms trees {0: 2017, 1: 809, 2: 1348, 3: 129} ; height >= 1: 2286
height-3 boxes 129 ; boxes with a TCS piece at level 2 129 ; boxes with six-coordinate pieces 129 ; level-2 TCS pieces without sub-pieces 0
height 3 == TCS at level 2 == six-coordinate pieces: True
R1_CHECK_PASS (1.3 s)
