Playing either of two the minimal versions, the following moves produce a crash (yielding the "C - Nonsense in BASIC" only supposed to happen during a checkmate).
(deterministic responses from computer in []s)
1. e2e4 [e7e6]
2. e4e5 [d8h4]
3. g2g3 [h4d4]
4. c2c3 [d4e5]
5. d2d4 [CRASH]