# positions from Hardings book 'the new chess computer book' (1985)
1r1k1r2/p5Q1/2p3p1/8/1q1p2n1/3P2P1/P3RPP1/4RK2 b Rf8xf2+! (-,Rb7 also good)
r1b2rk1/pp1p1pp1/1b1p2B1/n1qQ2p1/8/5N2/P3RPPP/4R1K1 w Qd5xf7+! mate in 4
8/2N2pk1/3R1p2/p1p1rb1P/2P2K1P/1P6/P7/8 w h5-h6+!
3r3k/p4Qp1/7p/1b1Bp3/4Pp2/7R/4nqPP/4R2K w Rh3xh6+! mate in 10 (18 sec. Dabbaba)
r2q1r2/pp1n4/6k1/b1pP4/4N3/P4P1Q/5P1P/3R1RK1 w Kg1-h1!
#x=exit