var extexts = new Array(
"6k1/1R3p2/6p1/p3b3/P6r/8/6P1/5RK1 b - - 0 1_36-27{Bd4+}",
"r2r2k1/ppp2ppp/2nbp3/q7/2P3b1/1P1P4/PB1NBPPP/R2Q1RK1 b - - 0 1_32-39{Qh5}_13-29{f4}_30-12{Bxe2}",
"r5k1/1q4pp/2p5/p1Q5/2P5/5RPP/4R2K/r7 w - - 0 1_34-36{Qe5}_0-1{Rb1}_36-60{Qe8+}",
"r2b1r1k/pppq2pn/2npb1Q1/3N1N1p/2B1PP1P/8/PPP5/2K3RR w - - 0 1_35-52{Nde7}_59-52{Bxe7}_s61-62{Rg8}_e6-38{Rg5}_46-54{Qxg7#}",
"8/8/8/8/8/3r4/p1p1N3/k1K1B3 w - - 0 1{%HGorgiev}_4-18{Bc3+}_19-18{Rxc3}_12-27{Nd4!}",
"2rqk2r/1p1bbppp/p2ppn2/n7/3NPP2/1P2BB2/P1PQN1PP/R3K2R b KQk - 0 1_44-36{e5}_27-37{Nf5}_51-37{Bxf5}",
"2r4k/3p1R1p/1n6/3pNP2/8/1P6/1K6/8 w - - 0 1{%HCook 1927}_36-30{Ng4}_63-62{Kg8}_s58-62{Rg8}_30-47{Nh6}_s30-45{Nf6}_62-14{Rg2+}_9-18{Kc3}_e14-15{Rh2}_62-60{Re8}_s62-14{Rg2+}_9-16{Ka3}_14-15{Rh2}_37-45{f6}_15-47{Rxh6}_e53-61{Rf8#}_37-45{f6}_41-58{Nc8}_53-51{Rxd7}_60-61{Rf8}_51-54{Rg7}_58-43{Nd6}_9-10{Kc2}_61-58{Rc8+}_e10-19{Kd3}_30-47{Nh6+}_62-63{Kh8}_37-45{f6}_58-60{Re8}_53-54{Rg7}_60-61{Rf8}_54-62{Rg8+}_61-62{Rxg8}_47-53{Nf7#}",
"3r2k1/ppq2ppp/2n1b3/3r4/Q7/2R1P3/PPB2PPP/1K4NR b - - 0 1_49-33{b5}_s35-32{Ra5}_24-31{Qh4}_44-8{Bxa2+}_e1-2{Kc1}_24-31{Qh4}_s24-17{Qb3}_e35-39{Rh5}_s24-29{Qf4}_35-3{Rd1+}_10-3{Bxd1}_59-3{Rxd1+}_1-10{Kc2}_e50-59{Qd8}_35-3{Rd1+}_10-3{Bxd1}_59-3{Rxd1+}_18-2{Rc1}_3-2{Rxc1+}_s42-25{Nb4}_6-12{Ne2}_ea44-8{Bxa2+}{}_1-2{Kxc1}_42-27{Nd4+}_2-11{Kd2}_50-10{Qc2+}_11-4{Ke1}_10-2{Qc1#}"
);