Sodoku for Workbench 1.3
I packed Sodoku as an ADF, not bootable becasue it needs intuition.library, so you have to load Workbench first. It needs around a 1.5 Mb RAM. Sadly I still not get the newer FPC Version to work (strange crashes, looks like some memory corruption, because it always crash at different positions) so the executable is still rather huge (550 kb vs 52 kb) and therefor needs a lot of memory to load it.
Download: Sodoku WB1.3 ADF