tests/bench.ep_

   1 sd 9
   2 setboard 3r1k2/4npp1/1ppr3p/p6P/P2PPPP1/1NR5/5K2/2R5 w - - 0 0
   3 go
   4 setboard rnbqkb1r/p3pppp/1p6/2ppP3/3N4/2P5/PPP1QPPP/R1B1KB1R w KQkq - 0 0
   5 go
   6 setboard 4b3/p3kp2/6p1/3pP2p/2pP1P2/4K1P1/P3N2P/8 w - - 0 0
   7 go
   8 setboard r3r1k1/ppqb1ppp/8/4p1NQ/8/2P5/PP3PPP/R3R1K1 b - - 0 0
   9 go
  10 setboard 2r2rk1/1bqnbpp1/1p1ppn1p/pP6/N1P1P3/P2B1N1P/1B2QPP1/R2R2K1 b - - 0 0
  11 go
  12 setboard r1bqk2r/pp2bppp/2p5/3pP3/P2Q1P2/2N1B3/1PP3PP/R4RK1 b kq - 0 0
  13 go
  14 quit