Screenshot of program running in Steem (Atari emulator) in Windows XP.

With this chess program was a set of 24 test positions that you could use to estimate your ELO rating.
You had 2 minutes per position and had upto 4 suggestions for each. At the end, your ELO was displayed.
When I got my first PC I converted these positions to an EPD file to test against the few chess engines that I had at that time.
Some of the positions were fairly trivial and I selected the 8 positions that some engines had difficulty with.
This is the 8 position file which dates from October 2002, which I found on an old computer yesterday.
Code: Select all
3r1k2/4npp1/1ppr3p/p6P/P2PPPP1/1NR5/5K2/2R5 w - - bm d5;
2q1rr1k/3bbnnp/p2p1pp1/2pPp3/PpP1P1P1/1P2BNNP/2BQ1PRK/7R b - - bm f5;
2kr1bnr/pb1q4/1pn1pp2/3p3p/3P1P1B/2N2N1Q/PPP3PP/2KR1B1R w - - bm f5;
2r1nrk1/p2q1ppp/bp1p4/n1pPp3/P1P1P3/2PBB1N1/4QPPP/R4RK1 w - - bm f4;
r2q1rk1/1ppnbppp/p2p1nb1/3Pp3/2P1P1P1/2N2N1P/PPB1QP2/R1B2RK1 b - - bm h5;
r1bq1rk1/pp2ppb1/2np2p1/2n5/P3PP2/N1P2N2/1PB3PP/R1B1QRK1 b - - bm Nb3;
r4k2/pb2bp1r/1p1qp2p/3pNp2/3P1P2/2N3P1/PPP1Q2P/2KRR3 w - - bm g4;
r1bqk2r/pp2bppp/2p5/3pP3/P2Q1P2/2N1B3/1PP3PP/R4RK1 b - - bm f6;
The 8 positions are nos. 2,3,9,11,17,18,20 & 23

