Here are some chess puzzles from the games of Tom Dorsch. Black to move and win except where noted.
Solutions are between the brackets under each puzzle. Drag your cursor from one bracket to the other.
a) White to move and win. Dorsch vs Thomas Weideman, Hawaii, 1994 5rk1/pp1rq1bp/nnp3p1/N3pp2/1P6/PN1PB1P1/2Q1PPKP/1R3R2 w - - 0 1 [ Nc5 if Rc7 Nxa6 w/Bc5 ]
b) White to move and win. Dorsch vs Julio Ruiz Diez, USA, 1995 r3k2r/ppp2p1p/4q1p1/6Bn/8/3P4/PbPNQ1PP/4RRK1 w - - 0 1 [ Qf2 if Be5 Rxe5 ]
c) Gregory Kotlyar vs Dorsch, USA, 1990 6nk/8/1p1QNb1p/1P2p1p1/1R3p2/P5P1/1B2qPKP/8 w - - 0 1 [ ...f3+ Kh3 h5 Nxg5 Qxf2 ]
d) Black Mates in 3. Richard Finacom vs Dorsch, California, 1992 1rr4k/7p/p3Qpp1/3p1P2/8/1P1q3P/PK4P1/3B3R b - - 0 1 [ ...Qc3+ if Ka3 Qc5+ ]
e) Leslie Au vs Dorsch, Hawaii, 1994 r3r1k1/3b3p/p2p2p1/2pP4/PpP1qB2/1Pb1QN1P/5PP1/2RK3R b - - 0 1 [ ...Qf5 if Nh4 Qh5+ ]
f) Eric Steger vs Dorsch, USA, 1994 r2qk2r/3nbppp/p3p3/1ppbN3/5B2/3P2P1/PPP2PBP/R4RK1 b - - 0 1 [ ...Bxg2 if Kxg2 Nxe5 w/Qd5+ ]
g) Mario Marshall vs Dorsch, San Mateo, 2000 3r1rk1/5qbp/b1p5/p3p1P1/2P1Nn2/P1QP1BK1/5B2/1R1R4 b - - 0 1 [ ...Nd5 if cxd5 Qxf3+ Kh2 cxd5 ]