K (ngn/k), 46 bytes

Created on the APL Farm with lots of input from chrispsn.

{++(,/(.x@y)#'"-="x_y#="PNP";"_")@3\466}`c$!58

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k9 2021.03.27, 53 52 bytes

-1 byte thanks to chrispsn!

++"_  ",|"_ ",,,/{.[x]#*"-="y#="PNP"}/'-2^(~=':64>)^

Try it online on kparc.com!

K (ngn/k), 46 bytes

Created on the APL Farm with lots of input from chrispsn.

{++(,/(.x@y)#'"-="x_y#="PNP";"_")@3\466}`c$!58

Try it online!

k9 2021.03.27, 53 52 bytes

-1 byte thanks to chrispsn!

++"_  ",|"_ ",,,/{.[x]#*"-="y#="PNP"}/'-2^(~=':64>)^

Try it online on kparc.io!

k9 2021.03.27, 53 52 bytes

-1 byte thanks to chrispsn!

++"_  ",|"_ ",,,/{.[x]#*"-="y#="PNP"}/'-2^(~=':64>)^

Try it online on kparc.com!

K (ngn/k), 46 bytes

Created on the APL Farm with lots of input from chrispsn.

{++(,/(.x@y)#'"-="x_y#="PNP";"_")@3\466}`c$!58

Try it online!

k9 2021.03.27, 53 52 bytes

-1 byte thanks to chrispsn!

++"_  ",|"_ ",,,/{.[x]#*"-="y#="PNP"}/'-2^(~=':64>)^

Try it online on kparc.com!

k9 2021.03.27, 53 bytes

++"_  ",|"_ ",,,/{.[x]#*"-="(="PNP")y}/'-2^(~=':64>)^

Try it online on kparc.com!

k9 2021.03.27, 53 52 bytes

-1 byte thanks to chrispsn!

++"_  ",|"_ ",,,/{.[x]#*"-="y#="PNP"}/'-2^(~=':64>)^

Try it online on kparc.com!