The moves are entered as numbers, where A=1,B=2, … G=8. For example, the classic opening E2-E4 is coded as 5254.
The calculator will response by appending its reply. for example 4745 (D7-D5). Castle by entering the king move.
Just keep entering moves until one side wins!
can only write to WDTC_WDMR once, comment out original code and set to disabled, like this:
// clobber watchdog!!! i hate dogs anyway :-) AT91C_BASE_WDTC->WDTC_WDMR = AT91C_WDTC_WDDIS;