pin names on nano 33 ble

Hardware Nano Family Nano 33 BLE
1

I fail to configure the GPIO pins on a nano 33 blue.

pinMode (25, OUTPUT); // leds are connected via resistor
digitalWrite (25, HIGH);
pinMode (26, OUTPUT);
digitalWrite (26, HIGH);
pinMode (27, OUTPUT);
digitalWrite (27, HIGH);
pinMode (28, OUTPUT);
digitalWrite (28, HIGH);

It seems that LED_BUILTIN, LEDR, LEDG and LEDB are affected, external leds do not react.

Using macros such as "D12", "PD12", etc only give compilation errors.
What are he correct names for using the GPIO pins on a nano 33 ble arduino?

2

the numbers on the bottom side of the PCB. same as classic Nano